Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 1 | # Copyright (c) 2004 Python Software Foundation. |
| 2 | # All rights reserved. |
| 3 | |
| 4 | # Written by Eric Price <eprice at tjhsst.edu> |
| 5 | # and Facundo Batista <facundo at taniquetil.com.ar> |
| 6 | # and Raymond Hettinger <python at rcn.com> |
| 7 | # and Aahz (aahz at pobox.com) |
| 8 | # and Tim Peters |
| 9 | |
| 10 | """ |
| 11 | These are the test cases for the Decimal module. |
| 12 | |
| 13 | There are two groups of tests, Arithmetic and Behaviour. The former test |
| 14 | the Decimal arithmetic using the tests provided by Mike Cowlishaw. The latter |
| 15 | test the pythonic behaviour according to PEP 327. |
| 16 | |
| 17 | Cowlishaw's tests can be downloaded from: |
| 18 | |
| 19 | www2.hursley.ibm.com/decimal/dectest.zip |
| 20 | |
| 21 | This test module can be called from command line with one parameter (Arithmetic |
| 22 | or Behaviour) to test each part, or without parameter to test both parts. If |
| 23 | you're working through IDLE, you can import this test module and call test_main() |
| 24 | with the corresponding argument. |
| 25 | """ |
| 26 | |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 27 | import glob |
Christian Heimes | 400adb0 | 2008-02-01 08:12:03 +0000 | [diff] [blame] | 28 | import math |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 29 | import os, sys |
| 30 | import pickle, copy |
Christian Heimes | 400adb0 | 2008-02-01 08:12:03 +0000 | [diff] [blame] | 31 | import unittest |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 32 | from decimal import * |
Raymond Hettinger | 82417ca | 2009-02-03 03:54:28 +0000 | [diff] [blame] | 33 | import numbers |
Benjamin Peterson | ee8712c | 2008-05-20 21:35:26 +0000 | [diff] [blame] | 34 | from test.support import (TestSkipped, run_unittest, run_doctest, |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 35 | is_resource_enabled) |
Raymond Hettinger | 0aeac10 | 2004-07-05 22:53:03 +0000 | [diff] [blame] | 36 | import random |
Raymond Hettinger | 7e71fa5 | 2004-12-18 19:07:19 +0000 | [diff] [blame] | 37 | try: |
| 38 | import threading |
| 39 | except ImportError: |
| 40 | threading = None |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 41 | |
Raymond Hettinger | fed5296 | 2004-07-14 15:41:57 +0000 | [diff] [blame] | 42 | # Useful Test Constant |
Guido van Rossum | c1f779c | 2007-07-03 08:25:58 +0000 | [diff] [blame] | 43 | Signals = tuple(getcontext().flags.keys()) |
Raymond Hettinger | fed5296 | 2004-07-14 15:41:57 +0000 | [diff] [blame] | 44 | |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 45 | # Tests are built around these assumed context defaults. |
| 46 | # test_main() restores the original context. |
| 47 | def init(): |
| 48 | global ORIGINAL_CONTEXT |
| 49 | ORIGINAL_CONTEXT = getcontext().copy() |
Christian Heimes | 81ee3ef | 2008-05-04 22:42:01 +0000 | [diff] [blame] | 50 | DefaultTestContext = Context( |
| 51 | prec = 9, |
| 52 | rounding = ROUND_HALF_EVEN, |
| 53 | traps = dict.fromkeys(Signals, 0) |
| 54 | ) |
| 55 | setcontext(DefaultTestContext) |
Raymond Hettinger | 6ea4845 | 2004-07-03 12:26:21 +0000 | [diff] [blame] | 56 | |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 57 | TESTDATADIR = 'decimaltestdata' |
Raymond Hettinger | d9c0a7a | 2004-07-03 10:02:28 +0000 | [diff] [blame] | 58 | if __name__ == '__main__': |
| 59 | file = sys.argv[0] |
| 60 | else: |
| 61 | file = __file__ |
| 62 | testdir = os.path.dirname(file) or os.curdir |
Raymond Hettinger | 267b868 | 2005-03-27 10:47:39 +0000 | [diff] [blame] | 63 | directory = testdir + os.sep + TESTDATADIR + os.sep |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 64 | |
Raymond Hettinger | 267b868 | 2005-03-27 10:47:39 +0000 | [diff] [blame] | 65 | skip_expected = not os.path.isdir(directory) |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 66 | |
| 67 | # Make sure it actually raises errors when not expected and caught in flags |
| 68 | # Slower, since it runs some things several times. |
| 69 | EXTENDEDERRORTEST = False |
| 70 | |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 71 | #Map the test cases' error names to the actual errors |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 72 | ErrorNames = {'clamped' : Clamped, |
Raymond Hettinger | 5aa478b | 2004-07-09 10:02:53 +0000 | [diff] [blame] | 73 | 'conversion_syntax' : InvalidOperation, |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 74 | 'division_by_zero' : DivisionByZero, |
Raymond Hettinger | 5aa478b | 2004-07-09 10:02:53 +0000 | [diff] [blame] | 75 | 'division_impossible' : InvalidOperation, |
| 76 | 'division_undefined' : InvalidOperation, |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 77 | 'inexact' : Inexact, |
Raymond Hettinger | 5aa478b | 2004-07-09 10:02:53 +0000 | [diff] [blame] | 78 | 'invalid_context' : InvalidOperation, |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 79 | 'invalid_operation' : InvalidOperation, |
| 80 | 'overflow' : Overflow, |
| 81 | 'rounded' : Rounded, |
| 82 | 'subnormal' : Subnormal, |
| 83 | 'underflow' : Underflow} |
| 84 | |
| 85 | |
| 86 | def Nonfunction(*args): |
| 87 | """Doesn't do anything.""" |
| 88 | return None |
| 89 | |
| 90 | RoundingDict = {'ceiling' : ROUND_CEILING, #Maps test-case names to roundings. |
| 91 | 'down' : ROUND_DOWN, |
| 92 | 'floor' : ROUND_FLOOR, |
| 93 | 'half_down' : ROUND_HALF_DOWN, |
| 94 | 'half_even' : ROUND_HALF_EVEN, |
| 95 | 'half_up' : ROUND_HALF_UP, |
Thomas Wouters | 1b7f891 | 2007-09-19 03:06:30 +0000 | [diff] [blame] | 96 | 'up' : ROUND_UP, |
| 97 | '05up' : ROUND_05UP} |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 98 | |
| 99 | # Name adapter to be able to change the Decimal and Context |
| 100 | # interface without changing the test files from Cowlishaw |
Guido van Rossum | 8ce8a78 | 2007-11-01 19:42:39 +0000 | [diff] [blame] | 101 | nameAdapter = {'and':'logical_and', |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 102 | 'apply':'_apply', |
Thomas Wouters | 1b7f891 | 2007-09-19 03:06:30 +0000 | [diff] [blame] | 103 | 'class':'number_class', |
| 104 | 'comparesig':'compare_signal', |
| 105 | 'comparetotal':'compare_total', |
| 106 | 'comparetotmag':'compare_total_mag', |
Thomas Wouters | 1b7f891 | 2007-09-19 03:06:30 +0000 | [diff] [blame] | 107 | 'copy':'copy_decimal', |
Guido van Rossum | 8ce8a78 | 2007-11-01 19:42:39 +0000 | [diff] [blame] | 108 | 'copyabs':'copy_abs', |
Thomas Wouters | 1b7f891 | 2007-09-19 03:06:30 +0000 | [diff] [blame] | 109 | 'copynegate':'copy_negate', |
| 110 | 'copysign':'copy_sign', |
Guido van Rossum | 8ce8a78 | 2007-11-01 19:42:39 +0000 | [diff] [blame] | 111 | 'divideint':'divide_int', |
Thomas Wouters | 1b7f891 | 2007-09-19 03:06:30 +0000 | [diff] [blame] | 112 | 'invert':'logical_invert', |
Guido van Rossum | 8ce8a78 | 2007-11-01 19:42:39 +0000 | [diff] [blame] | 113 | 'iscanonical':'is_canonical', |
| 114 | 'isfinite':'is_finite', |
| 115 | 'isinfinite':'is_infinite', |
| 116 | 'isnan':'is_nan', |
| 117 | 'isnormal':'is_normal', |
| 118 | 'isqnan':'is_qnan', |
| 119 | 'issigned':'is_signed', |
| 120 | 'issnan':'is_snan', |
| 121 | 'issubnormal':'is_subnormal', |
| 122 | 'iszero':'is_zero', |
Thomas Wouters | 1b7f891 | 2007-09-19 03:06:30 +0000 | [diff] [blame] | 123 | 'maxmag':'max_mag', |
| 124 | 'minmag':'min_mag', |
| 125 | 'nextminus':'next_minus', |
| 126 | 'nextplus':'next_plus', |
| 127 | 'nexttoward':'next_toward', |
Guido van Rossum | 8ce8a78 | 2007-11-01 19:42:39 +0000 | [diff] [blame] | 128 | 'or':'logical_or', |
Thomas Wouters | 1b7f891 | 2007-09-19 03:06:30 +0000 | [diff] [blame] | 129 | 'reduce':'normalize', |
Guido van Rossum | 8ce8a78 | 2007-11-01 19:42:39 +0000 | [diff] [blame] | 130 | 'remaindernear':'remainder_near', |
| 131 | 'samequantum':'same_quantum', |
| 132 | 'squareroot':'sqrt', |
| 133 | 'toeng':'to_eng_string', |
| 134 | 'tointegral':'to_integral_value', |
| 135 | 'tointegralx':'to_integral_exact', |
| 136 | 'tosci':'to_sci_string', |
| 137 | 'xor':'logical_xor', |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 138 | } |
| 139 | |
Guido van Rossum | 8ce8a78 | 2007-11-01 19:42:39 +0000 | [diff] [blame] | 140 | # The following functions return True/False rather than a Decimal instance |
| 141 | |
| 142 | LOGICAL_FUNCTIONS = ( |
| 143 | 'is_canonical', |
| 144 | 'is_finite', |
| 145 | 'is_infinite', |
| 146 | 'is_nan', |
| 147 | 'is_normal', |
| 148 | 'is_qnan', |
| 149 | 'is_signed', |
| 150 | 'is_snan', |
| 151 | 'is_subnormal', |
| 152 | 'is_zero', |
| 153 | 'same_quantum', |
| 154 | ) |
| 155 | |
Thomas Wouters | 1b7f891 | 2007-09-19 03:06:30 +0000 | [diff] [blame] | 156 | # For some operations (currently exp, ln, log10, power), the decNumber |
| 157 | # reference implementation imposes additional restrictions on the |
| 158 | # context and operands. These restrictions are not part of the |
| 159 | # specification; however, the effect of these restrictions does show |
| 160 | # up in some of the testcases. We skip testcases that violate these |
| 161 | # restrictions, since Decimal behaves differently from decNumber for |
| 162 | # these testcases so these testcases would otherwise fail. |
| 163 | |
| 164 | decNumberRestricted = ('power', 'ln', 'log10', 'exp') |
| 165 | DEC_MAX_MATH = 999999 |
| 166 | def outside_decNumber_bounds(v, context): |
| 167 | if (context.prec > DEC_MAX_MATH or |
| 168 | context.Emax > DEC_MAX_MATH or |
| 169 | -context.Emin > DEC_MAX_MATH): |
| 170 | return True |
| 171 | if not v._is_special and v and ( |
Thomas Wouters | 1b7f891 | 2007-09-19 03:06:30 +0000 | [diff] [blame] | 172 | v.adjusted() > DEC_MAX_MATH or |
| 173 | v.adjusted() < 1-2*DEC_MAX_MATH): |
| 174 | return True |
| 175 | return False |
| 176 | |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 177 | class DecimalTest(unittest.TestCase): |
| 178 | """Class which tests the Decimal class against the test cases. |
| 179 | |
| 180 | Changed for unittest. |
| 181 | """ |
| 182 | def setUp(self): |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 183 | self.context = Context() |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 184 | self.ignore_list = ['#'] |
| 185 | # Basically, a # means return NaN InvalidOperation. |
| 186 | # Different from a sNaN in trim |
| 187 | |
| 188 | self.ChangeDict = {'precision' : self.change_precision, |
| 189 | 'rounding' : self.change_rounding_method, |
| 190 | 'maxexponent' : self.change_max_exponent, |
| 191 | 'minexponent' : self.change_min_exponent, |
| 192 | 'clamp' : self.change_clamp} |
| 193 | |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 194 | def eval_file(self, file): |
| 195 | global skip_expected |
| 196 | if skip_expected: |
| 197 | raise TestSkipped |
| 198 | return |
Neal Norwitz | 7096760 | 2006-03-17 08:29:44 +0000 | [diff] [blame] | 199 | for line in open(file): |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 200 | line = line.replace('\r\n', '').replace('\n', '') |
Raymond Hettinger | 5aa478b | 2004-07-09 10:02:53 +0000 | [diff] [blame] | 201 | #print line |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 202 | try: |
| 203 | t = self.eval_line(line) |
Guido van Rossum | b940e11 | 2007-01-10 16:19:56 +0000 | [diff] [blame] | 204 | except DecimalException as exception: |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 205 | #Exception raised where there shoudn't have been one. |
| 206 | self.fail('Exception "'+exception.__class__.__name__ + '" raised on line '+line) |
| 207 | |
| 208 | return |
| 209 | |
| 210 | def eval_line(self, s): |
| 211 | if s.find(' -> ') >= 0 and s[:2] != '--' and not s.startswith(' --'): |
| 212 | s = (s.split('->')[0] + '->' + |
| 213 | s.split('->')[1].split('--')[0]).strip() |
| 214 | else: |
| 215 | s = s.split('--')[0].strip() |
| 216 | |
| 217 | for ignore in self.ignore_list: |
| 218 | if s.find(ignore) >= 0: |
| 219 | #print s.split()[0], 'NotImplemented--', ignore |
| 220 | return |
| 221 | if not s: |
| 222 | return |
| 223 | elif ':' in s: |
| 224 | return self.eval_directive(s) |
| 225 | else: |
| 226 | return self.eval_equation(s) |
| 227 | |
| 228 | def eval_directive(self, s): |
Guido van Rossum | c1f779c | 2007-07-03 08:25:58 +0000 | [diff] [blame] | 229 | funct, value = (x.strip().lower() for x in s.split(':')) |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 230 | if funct == 'rounding': |
| 231 | value = RoundingDict[value] |
| 232 | else: |
| 233 | try: |
| 234 | value = int(value) |
| 235 | except ValueError: |
| 236 | pass |
| 237 | |
| 238 | funct = self.ChangeDict.get(funct, Nonfunction) |
| 239 | funct(value) |
| 240 | |
| 241 | def eval_equation(self, s): |
| 242 | #global DEFAULT_PRECISION |
| 243 | #print DEFAULT_PRECISION |
Raymond Hettinger | ed20ad8 | 2004-09-04 20:09:13 +0000 | [diff] [blame] | 244 | |
| 245 | if not TEST_ALL and random.random() < 0.90: |
| 246 | return |
| 247 | |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 248 | try: |
| 249 | Sides = s.split('->') |
| 250 | L = Sides[0].strip().split() |
| 251 | id = L[0] |
Thomas Wouters | 1b7f891 | 2007-09-19 03:06:30 +0000 | [diff] [blame] | 252 | if DEBUG: |
| 253 | print("Test ", id, end=" ") |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 254 | funct = L[1].lower() |
| 255 | valstemp = L[2:] |
| 256 | L = Sides[1].strip().split() |
| 257 | ans = L[0] |
| 258 | exceptions = L[1:] |
| 259 | except (TypeError, AttributeError, IndexError): |
Raymond Hettinger | d87ac8f | 2004-07-09 10:52:54 +0000 | [diff] [blame] | 260 | raise InvalidOperation |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 261 | def FixQuotes(val): |
| 262 | val = val.replace("''", 'SingleQuote').replace('""', 'DoubleQuote') |
| 263 | val = val.replace("'", '').replace('"', '') |
| 264 | val = val.replace('SingleQuote', "'").replace('DoubleQuote', '"') |
| 265 | return val |
| 266 | fname = nameAdapter.get(funct, funct) |
| 267 | if fname == 'rescale': |
| 268 | return |
| 269 | funct = getattr(self.context, fname) |
| 270 | vals = [] |
| 271 | conglomerate = '' |
| 272 | quote = 0 |
| 273 | theirexceptions = [ErrorNames[x.lower()] for x in exceptions] |
| 274 | |
Raymond Hettinger | d9c0a7a | 2004-07-03 10:02:28 +0000 | [diff] [blame] | 275 | for exception in Signals: |
Raymond Hettinger | bf44069 | 2004-07-10 14:14:37 +0000 | [diff] [blame] | 276 | self.context.traps[exception] = 1 #Catch these bugs... |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 277 | for exception in theirexceptions: |
Raymond Hettinger | bf44069 | 2004-07-10 14:14:37 +0000 | [diff] [blame] | 278 | self.context.traps[exception] = 0 |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 279 | for i, val in enumerate(valstemp): |
| 280 | if val.count("'") % 2 == 1: |
| 281 | quote = 1 - quote |
| 282 | if quote: |
| 283 | conglomerate = conglomerate + ' ' + val |
| 284 | continue |
| 285 | else: |
| 286 | val = conglomerate + val |
| 287 | conglomerate = '' |
| 288 | v = FixQuotes(val) |
| 289 | if fname in ('to_sci_string', 'to_eng_string'): |
| 290 | if EXTENDEDERRORTEST: |
| 291 | for error in theirexceptions: |
Raymond Hettinger | bf44069 | 2004-07-10 14:14:37 +0000 | [diff] [blame] | 292 | self.context.traps[error] = 1 |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 293 | try: |
| 294 | funct(self.context.create_decimal(v)) |
| 295 | except error: |
| 296 | pass |
Guido van Rossum | b940e11 | 2007-01-10 16:19:56 +0000 | [diff] [blame] | 297 | except Signals as e: |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 298 | self.fail("Raised %s in %s when %s disabled" % \ |
| 299 | (e, s, error)) |
| 300 | else: |
| 301 | self.fail("Did not raise %s in %s" % (error, s)) |
Raymond Hettinger | bf44069 | 2004-07-10 14:14:37 +0000 | [diff] [blame] | 302 | self.context.traps[error] = 0 |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 303 | v = self.context.create_decimal(v) |
| 304 | else: |
Thomas Wouters | 1b7f891 | 2007-09-19 03:06:30 +0000 | [diff] [blame] | 305 | v = Decimal(v, self.context) |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 306 | vals.append(v) |
| 307 | |
| 308 | ans = FixQuotes(ans) |
| 309 | |
Thomas Wouters | 1b7f891 | 2007-09-19 03:06:30 +0000 | [diff] [blame] | 310 | # skip tests that are related to bounds imposed in the decNumber |
| 311 | # reference implementation |
| 312 | if fname in decNumberRestricted: |
| 313 | if fname == 'power': |
| 314 | if not (vals[1]._isinteger() and |
| 315 | -1999999997 <= vals[1] <= 999999999): |
| 316 | if outside_decNumber_bounds(vals[0], self.context) or \ |
| 317 | outside_decNumber_bounds(vals[1], self.context): |
| 318 | #print "Skipping test %s" % s |
| 319 | return |
| 320 | else: |
| 321 | if outside_decNumber_bounds(vals[0], self.context): |
| 322 | #print "Skipping test %s" % s |
| 323 | return |
| 324 | |
| 325 | |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 326 | if EXTENDEDERRORTEST and fname not in ('to_sci_string', 'to_eng_string'): |
| 327 | for error in theirexceptions: |
Raymond Hettinger | bf44069 | 2004-07-10 14:14:37 +0000 | [diff] [blame] | 328 | self.context.traps[error] = 1 |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 329 | try: |
| 330 | funct(*vals) |
| 331 | except error: |
| 332 | pass |
Guido van Rossum | b940e11 | 2007-01-10 16:19:56 +0000 | [diff] [blame] | 333 | except Signals as e: |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 334 | self.fail("Raised %s in %s when %s disabled" % \ |
| 335 | (e, s, error)) |
| 336 | else: |
| 337 | self.fail("Did not raise %s in %s" % (error, s)) |
Raymond Hettinger | bf44069 | 2004-07-10 14:14:37 +0000 | [diff] [blame] | 338 | self.context.traps[error] = 0 |
Thomas Wouters | 1b7f891 | 2007-09-19 03:06:30 +0000 | [diff] [blame] | 339 | if DEBUG: |
| 340 | print("--", self.context) |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 341 | try: |
| 342 | result = str(funct(*vals)) |
Guido van Rossum | 8ce8a78 | 2007-11-01 19:42:39 +0000 | [diff] [blame] | 343 | if fname in LOGICAL_FUNCTIONS: |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 344 | result = str(int(eval(result))) # 'True', 'False' -> '1', '0' |
Guido van Rossum | b940e11 | 2007-01-10 16:19:56 +0000 | [diff] [blame] | 345 | except Signals as error: |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 346 | self.fail("Raised %s in %s" % (error, s)) |
| 347 | except: #Catch any error long enough to state the test case. |
Guido van Rossum | be19ed7 | 2007-02-09 05:37:30 +0000 | [diff] [blame] | 348 | print("ERROR:", s) |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 349 | raise |
| 350 | |
| 351 | myexceptions = self.getexceptions() |
Raymond Hettinger | bf44069 | 2004-07-10 14:14:37 +0000 | [diff] [blame] | 352 | self.context.clear_flags() |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 353 | |
Guido van Rossum | 47b9ff6 | 2006-08-24 00:41:19 +0000 | [diff] [blame] | 354 | myexceptions.sort(key=repr) |
| 355 | theirexceptions.sort(key=repr) |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 356 | |
| 357 | self.assertEqual(result, ans, |
| 358 | 'Incorrect answer for ' + s + ' -- got ' + result) |
| 359 | self.assertEqual(myexceptions, theirexceptions, |
Thomas Wouters | 1b7f891 | 2007-09-19 03:06:30 +0000 | [diff] [blame] | 360 | 'Incorrect flags set in ' + s + ' -- got ' + str(myexceptions)) |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 361 | return |
| 362 | |
| 363 | def getexceptions(self): |
Raymond Hettinger | f63ba43 | 2004-08-17 05:42:09 +0000 | [diff] [blame] | 364 | return [e for e in Signals if self.context.flags[e]] |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 365 | |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 366 | def change_precision(self, prec): |
| 367 | self.context.prec = prec |
| 368 | def change_rounding_method(self, rounding): |
| 369 | self.context.rounding = rounding |
| 370 | def change_min_exponent(self, exp): |
| 371 | self.context.Emin = exp |
| 372 | def change_max_exponent(self, exp): |
| 373 | self.context.Emax = exp |
| 374 | def change_clamp(self, clamp): |
| 375 | self.context._clamp = clamp |
| 376 | |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 377 | |
| 378 | |
| 379 | # The following classes test the behaviour of Decimal according to PEP 327 |
| 380 | |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 381 | class DecimalExplicitConstructionTest(unittest.TestCase): |
| 382 | '''Unit tests for Explicit Construction cases of Decimal.''' |
| 383 | |
| 384 | def test_explicit_empty(self): |
| 385 | self.assertEqual(Decimal(), Decimal("0")) |
| 386 | |
| 387 | def test_explicit_from_None(self): |
| 388 | self.assertRaises(TypeError, Decimal, None) |
| 389 | |
| 390 | def test_explicit_from_int(self): |
| 391 | |
| 392 | #positive |
| 393 | d = Decimal(45) |
| 394 | self.assertEqual(str(d), '45') |
| 395 | |
| 396 | #very large positive |
| 397 | d = Decimal(500000123) |
| 398 | self.assertEqual(str(d), '500000123') |
| 399 | |
| 400 | #negative |
| 401 | d = Decimal(-45) |
| 402 | self.assertEqual(str(d), '-45') |
| 403 | |
| 404 | #zero |
| 405 | d = Decimal(0) |
| 406 | self.assertEqual(str(d), '0') |
| 407 | |
| 408 | def test_explicit_from_string(self): |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 409 | |
| 410 | #empty |
| 411 | self.assertEqual(str(Decimal('')), 'NaN') |
| 412 | |
| 413 | #int |
| 414 | self.assertEqual(str(Decimal('45')), '45') |
| 415 | |
| 416 | #float |
| 417 | self.assertEqual(str(Decimal('45.34')), '45.34') |
| 418 | |
| 419 | #engineer notation |
| 420 | self.assertEqual(str(Decimal('45e2')), '4.5E+3') |
| 421 | |
| 422 | #just not a number |
| 423 | self.assertEqual(str(Decimal('ugly')), 'NaN') |
| 424 | |
Christian Heimes | a62da1d | 2008-01-12 19:39:10 +0000 | [diff] [blame] | 425 | #leading and trailing whitespace permitted |
| 426 | self.assertEqual(str(Decimal('1.3E4 \n')), '1.3E+4') |
| 427 | self.assertEqual(str(Decimal(' -7.89')), '-7.89') |
| 428 | |
Benjamin Peterson | 4118174 | 2008-07-02 20:22:54 +0000 | [diff] [blame] | 429 | #but alternate unicode digits should not |
| 430 | self.assertEqual(str(Decimal('\uff11')), 'NaN') |
| 431 | |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 432 | def test_explicit_from_tuples(self): |
| 433 | |
| 434 | #zero |
| 435 | d = Decimal( (0, (0,), 0) ) |
| 436 | self.assertEqual(str(d), '0') |
| 437 | |
| 438 | #int |
| 439 | d = Decimal( (1, (4, 5), 0) ) |
| 440 | self.assertEqual(str(d), '-45') |
| 441 | |
| 442 | #float |
| 443 | d = Decimal( (0, (4, 5, 3, 4), -2) ) |
| 444 | self.assertEqual(str(d), '45.34') |
| 445 | |
| 446 | #weird |
| 447 | d = Decimal( (1, (4, 3, 4, 9, 1, 3, 5, 3, 4), -25) ) |
| 448 | self.assertEqual(str(d), '-4.34913534E-17') |
| 449 | |
| 450 | #wrong number of items |
| 451 | self.assertRaises(ValueError, Decimal, (1, (4, 3, 4, 9, 1)) ) |
| 452 | |
| 453 | #bad sign |
| 454 | self.assertRaises(ValueError, Decimal, (8, (4, 3, 4, 9, 1), 2) ) |
Guido van Rossum | 8ce8a78 | 2007-11-01 19:42:39 +0000 | [diff] [blame] | 455 | self.assertRaises(ValueError, Decimal, (0., (4, 3, 4, 9, 1), 2) ) |
| 456 | self.assertRaises(ValueError, Decimal, (Decimal(1), (4, 3, 4, 9, 1), 2)) |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 457 | |
| 458 | #bad exp |
| 459 | self.assertRaises(ValueError, Decimal, (1, (4, 3, 4, 9, 1), 'wrong!') ) |
Guido van Rossum | 8ce8a78 | 2007-11-01 19:42:39 +0000 | [diff] [blame] | 460 | self.assertRaises(ValueError, Decimal, (1, (4, 3, 4, 9, 1), 0.) ) |
| 461 | self.assertRaises(ValueError, Decimal, (1, (4, 3, 4, 9, 1), '1') ) |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 462 | |
| 463 | #bad coefficients |
| 464 | self.assertRaises(ValueError, Decimal, (1, (4, 3, 4, None, 1), 2) ) |
| 465 | self.assertRaises(ValueError, Decimal, (1, (4, -3, 4, 9, 1), 2) ) |
Guido van Rossum | 8ce8a78 | 2007-11-01 19:42:39 +0000 | [diff] [blame] | 466 | self.assertRaises(ValueError, Decimal, (1, (4, 10, 4, 9, 1), 2) ) |
Guido van Rossum | 0d3fb8a | 2007-11-26 23:23:18 +0000 | [diff] [blame] | 467 | self.assertRaises(ValueError, Decimal, (1, (4, 3, 4, 'a', 1), 2) ) |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 468 | |
| 469 | def test_explicit_from_Decimal(self): |
| 470 | |
| 471 | #positive |
| 472 | d = Decimal(45) |
| 473 | e = Decimal(d) |
| 474 | self.assertEqual(str(e), '45') |
| 475 | self.assertNotEqual(id(d), id(e)) |
| 476 | |
| 477 | #very large positive |
| 478 | d = Decimal(500000123) |
| 479 | e = Decimal(d) |
| 480 | self.assertEqual(str(e), '500000123') |
| 481 | self.assertNotEqual(id(d), id(e)) |
| 482 | |
| 483 | #negative |
| 484 | d = Decimal(-45) |
| 485 | e = Decimal(d) |
| 486 | self.assertEqual(str(e), '-45') |
| 487 | self.assertNotEqual(id(d), id(e)) |
| 488 | |
| 489 | #zero |
| 490 | d = Decimal(0) |
| 491 | e = Decimal(d) |
| 492 | self.assertEqual(str(e), '0') |
| 493 | self.assertNotEqual(id(d), id(e)) |
| 494 | |
| 495 | def test_explicit_context_create_decimal(self): |
| 496 | |
| 497 | nc = copy.copy(getcontext()) |
| 498 | nc.prec = 3 |
| 499 | |
| 500 | # empty |
Raymond Hettinger | fed5296 | 2004-07-14 15:41:57 +0000 | [diff] [blame] | 501 | d = Decimal() |
| 502 | self.assertEqual(str(d), '0') |
| 503 | d = nc.create_decimal() |
| 504 | self.assertEqual(str(d), '0') |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 505 | |
| 506 | # from None |
| 507 | self.assertRaises(TypeError, nc.create_decimal, None) |
| 508 | |
| 509 | # from int |
| 510 | d = nc.create_decimal(456) |
| 511 | self.failUnless(isinstance(d, Decimal)) |
| 512 | self.assertEqual(nc.create_decimal(45678), |
| 513 | nc.create_decimal('457E+2')) |
| 514 | |
| 515 | # from string |
| 516 | d = Decimal('456789') |
| 517 | self.assertEqual(str(d), '456789') |
| 518 | d = nc.create_decimal('456789') |
| 519 | self.assertEqual(str(d), '4.57E+5') |
Christian Heimes | a62da1d | 2008-01-12 19:39:10 +0000 | [diff] [blame] | 520 | # leading and trailing whitespace should result in a NaN; |
| 521 | # spaces are already checked in Cowlishaw's test-suite, so |
| 522 | # here we just check that a trailing newline results in a NaN |
| 523 | self.assertEqual(str(nc.create_decimal('3.14\n')), 'NaN') |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 524 | |
| 525 | # from tuples |
| 526 | d = Decimal( (1, (4, 3, 4, 9, 1, 3, 5, 3, 4), -25) ) |
| 527 | self.assertEqual(str(d), '-4.34913534E-17') |
| 528 | d = nc.create_decimal( (1, (4, 3, 4, 9, 1, 3, 5, 3, 4), -25) ) |
| 529 | self.assertEqual(str(d), '-4.35E-17') |
| 530 | |
| 531 | # from Decimal |
| 532 | prevdec = Decimal(500000123) |
| 533 | d = Decimal(prevdec) |
| 534 | self.assertEqual(str(d), '500000123') |
| 535 | d = nc.create_decimal(prevdec) |
| 536 | self.assertEqual(str(d), '5.00E+8') |
| 537 | |
| 538 | |
| 539 | class DecimalImplicitConstructionTest(unittest.TestCase): |
| 540 | '''Unit tests for Implicit Construction cases of Decimal.''' |
| 541 | |
| 542 | def test_implicit_from_None(self): |
| 543 | self.assertRaises(TypeError, eval, 'Decimal(5) + None', globals()) |
| 544 | |
| 545 | def test_implicit_from_int(self): |
| 546 | #normal |
| 547 | self.assertEqual(str(Decimal(5) + 45), '50') |
| 548 | #exceeding precision |
| 549 | self.assertEqual(Decimal(5) + 123456789000, Decimal(123456789000)) |
| 550 | |
| 551 | def test_implicit_from_string(self): |
| 552 | self.assertRaises(TypeError, eval, 'Decimal(5) + "3"', globals()) |
| 553 | |
| 554 | def test_implicit_from_float(self): |
| 555 | self.assertRaises(TypeError, eval, 'Decimal(5) + 2.2', globals()) |
| 556 | |
| 557 | def test_implicit_from_Decimal(self): |
| 558 | self.assertEqual(Decimal(5) + Decimal(45), Decimal(50)) |
| 559 | |
Raymond Hettinger | 267b868 | 2005-03-27 10:47:39 +0000 | [diff] [blame] | 560 | def test_rop(self): |
| 561 | # Allow other classes to be trained to interact with Decimals |
| 562 | class E: |
| 563 | def __divmod__(self, other): |
| 564 | return 'divmod ' + str(other) |
| 565 | def __rdivmod__(self, other): |
| 566 | return str(other) + ' rdivmod' |
| 567 | def __lt__(self, other): |
| 568 | return 'lt ' + str(other) |
| 569 | def __gt__(self, other): |
| 570 | return 'gt ' + str(other) |
| 571 | def __le__(self, other): |
| 572 | return 'le ' + str(other) |
| 573 | def __ge__(self, other): |
| 574 | return 'ge ' + str(other) |
| 575 | def __eq__(self, other): |
| 576 | return 'eq ' + str(other) |
| 577 | def __ne__(self, other): |
| 578 | return 'ne ' + str(other) |
| 579 | |
| 580 | self.assertEqual(divmod(E(), Decimal(10)), 'divmod 10') |
| 581 | self.assertEqual(divmod(Decimal(10), E()), '10 rdivmod') |
| 582 | self.assertEqual(eval('Decimal(10) < E()'), 'gt 10') |
| 583 | self.assertEqual(eval('Decimal(10) > E()'), 'lt 10') |
| 584 | self.assertEqual(eval('Decimal(10) <= E()'), 'ge 10') |
| 585 | self.assertEqual(eval('Decimal(10) >= E()'), 'le 10') |
| 586 | self.assertEqual(eval('Decimal(10) == E()'), 'eq 10') |
| 587 | self.assertEqual(eval('Decimal(10) != E()'), 'ne 10') |
| 588 | |
| 589 | # insert operator methods and then exercise them |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 590 | oplist = [ |
| 591 | ('+', '__add__', '__radd__'), |
| 592 | ('-', '__sub__', '__rsub__'), |
| 593 | ('*', '__mul__', '__rmul__'), |
Thomas Wouters | dcc6d32 | 2006-04-21 11:30:52 +0000 | [diff] [blame] | 594 | ('/', '__truediv__', '__rtruediv__'), |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 595 | ('%', '__mod__', '__rmod__'), |
| 596 | ('//', '__floordiv__', '__rfloordiv__'), |
| 597 | ('**', '__pow__', '__rpow__') |
| 598 | ] |
Raymond Hettinger | 267b868 | 2005-03-27 10:47:39 +0000 | [diff] [blame] | 599 | |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 600 | for sym, lop, rop in oplist: |
Raymond Hettinger | 267b868 | 2005-03-27 10:47:39 +0000 | [diff] [blame] | 601 | setattr(E, lop, lambda self, other: 'str' + lop + str(other)) |
| 602 | setattr(E, rop, lambda self, other: str(other) + rop + 'str') |
| 603 | self.assertEqual(eval('E()' + sym + 'Decimal(10)'), |
| 604 | 'str' + lop + '10') |
| 605 | self.assertEqual(eval('Decimal(10)' + sym + 'E()'), |
| 606 | '10' + rop + 'str') |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 607 | |
Christian Heimes | f16baeb | 2008-02-29 14:57:44 +0000 | [diff] [blame] | 608 | class DecimalFormatTest(unittest.TestCase): |
| 609 | '''Unit tests for the format function.''' |
| 610 | def test_formatting(self): |
| 611 | # triples giving a format, a Decimal, and the expected result |
| 612 | test_values = [ |
| 613 | ('e', '0E-15', '0e-15'), |
| 614 | ('e', '2.3E-15', '2.3e-15'), |
| 615 | ('e', '2.30E+2', '2.30e+2'), # preserve significant zeros |
| 616 | ('e', '2.30000E-15', '2.30000e-15'), |
| 617 | ('e', '1.23456789123456789e40', '1.23456789123456789e+40'), |
| 618 | ('e', '1.5', '1.5e+0'), |
| 619 | ('e', '0.15', '1.5e-1'), |
| 620 | ('e', '0.015', '1.5e-2'), |
| 621 | ('e', '0.0000000000015', '1.5e-12'), |
| 622 | ('e', '15.0', '1.50e+1'), |
| 623 | ('e', '-15', '-1.5e+1'), |
| 624 | ('e', '0', '0e+0'), |
| 625 | ('e', '0E1', '0e+1'), |
| 626 | ('e', '0.0', '0e-1'), |
| 627 | ('e', '0.00', '0e-2'), |
| 628 | ('.6e', '0E-15', '0.000000e-9'), |
| 629 | ('.6e', '0', '0.000000e+6'), |
| 630 | ('.6e', '9.999999', '9.999999e+0'), |
| 631 | ('.6e', '9.9999999', '1.000000e+1'), |
| 632 | ('.6e', '-1.23e5', '-1.230000e+5'), |
| 633 | ('.6e', '1.23456789e-3', '1.234568e-3'), |
| 634 | ('f', '0', '0'), |
| 635 | ('f', '0.0', '0.0'), |
| 636 | ('f', '0E-2', '0.00'), |
| 637 | ('f', '0.00E-8', '0.0000000000'), |
| 638 | ('f', '0E1', '0'), # loses exponent information |
| 639 | ('f', '3.2E1', '32'), |
| 640 | ('f', '3.2E2', '320'), |
| 641 | ('f', '3.20E2', '320'), |
| 642 | ('f', '3.200E2', '320.0'), |
| 643 | ('f', '3.2E-6', '0.0000032'), |
| 644 | ('.6f', '0E-15', '0.000000'), # all zeros treated equally |
| 645 | ('.6f', '0E1', '0.000000'), |
| 646 | ('.6f', '0', '0.000000'), |
| 647 | ('.0f', '0', '0'), # no decimal point |
| 648 | ('.0f', '0e-2', '0'), |
| 649 | ('.0f', '3.14159265', '3'), |
| 650 | ('.1f', '3.14159265', '3.1'), |
| 651 | ('.4f', '3.14159265', '3.1416'), |
| 652 | ('.6f', '3.14159265', '3.141593'), |
| 653 | ('.7f', '3.14159265', '3.1415926'), # round-half-even! |
| 654 | ('.8f', '3.14159265', '3.14159265'), |
| 655 | ('.9f', '3.14159265', '3.141592650'), |
| 656 | |
| 657 | ('g', '0', '0'), |
| 658 | ('g', '0.0', '0.0'), |
| 659 | ('g', '0E1', '0e+1'), |
| 660 | ('G', '0E1', '0E+1'), |
| 661 | ('g', '0E-5', '0.00000'), |
| 662 | ('g', '0E-6', '0.000000'), |
| 663 | ('g', '0E-7', '0e-7'), |
| 664 | ('g', '-0E2', '-0e+2'), |
| 665 | ('.0g', '3.14159265', '3'), # 0 sig fig -> 1 sig fig |
| 666 | ('.1g', '3.14159265', '3'), |
| 667 | ('.2g', '3.14159265', '3.1'), |
| 668 | ('.5g', '3.14159265', '3.1416'), |
| 669 | ('.7g', '3.14159265', '3.141593'), |
| 670 | ('.8g', '3.14159265', '3.1415926'), # round-half-even! |
| 671 | ('.9g', '3.14159265', '3.14159265'), |
| 672 | ('.10g', '3.14159265', '3.14159265'), # don't pad |
| 673 | |
| 674 | ('%', '0E1', '0%'), |
| 675 | ('%', '0E0', '0%'), |
| 676 | ('%', '0E-1', '0%'), |
| 677 | ('%', '0E-2', '0%'), |
| 678 | ('%', '0E-3', '0.0%'), |
| 679 | ('%', '0E-4', '0.00%'), |
| 680 | |
| 681 | ('.3%', '0', '0.000%'), # all zeros treated equally |
| 682 | ('.3%', '0E10', '0.000%'), |
| 683 | ('.3%', '0E-10', '0.000%'), |
| 684 | ('.3%', '2.34', '234.000%'), |
| 685 | ('.3%', '1.234567', '123.457%'), |
| 686 | ('.0%', '1.23', '123%'), |
| 687 | |
| 688 | ('e', 'NaN', 'NaN'), |
| 689 | ('f', '-NaN123', '-NaN123'), |
| 690 | ('+g', 'NaN456', '+NaN456'), |
| 691 | ('.3e', 'Inf', 'Infinity'), |
| 692 | ('.16f', '-Inf', '-Infinity'), |
| 693 | ('.0g', '-sNaN', '-sNaN'), |
| 694 | |
| 695 | ('', '1.00', '1.00'), |
Mark Dickinson | ad41634 | 2009-03-17 18:10:15 +0000 | [diff] [blame^] | 696 | |
| 697 | # check alignment |
| 698 | ('<6', '123', '123 '), |
| 699 | ('>6', '123', ' 123'), |
| 700 | ('^6', '123', ' 123 '), |
| 701 | ('=+6', '123', '+ 123'), |
Christian Heimes | f16baeb | 2008-02-29 14:57:44 +0000 | [diff] [blame] | 702 | ] |
| 703 | for fmt, d, result in test_values: |
| 704 | self.assertEqual(format(Decimal(d), fmt), result) |
| 705 | |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 706 | class DecimalArithmeticOperatorsTest(unittest.TestCase): |
| 707 | '''Unit tests for all arithmetic operators, binary and unary.''' |
| 708 | |
| 709 | def test_addition(self): |
| 710 | |
| 711 | d1 = Decimal('-11.1') |
| 712 | d2 = Decimal('22.2') |
| 713 | |
| 714 | #two Decimals |
| 715 | self.assertEqual(d1+d2, Decimal('11.1')) |
| 716 | self.assertEqual(d2+d1, Decimal('11.1')) |
| 717 | |
| 718 | #with other type, left |
| 719 | c = d1 + 5 |
| 720 | self.assertEqual(c, Decimal('-6.1')) |
| 721 | self.assertEqual(type(c), type(d1)) |
| 722 | |
| 723 | #with other type, right |
| 724 | c = 5 + d1 |
| 725 | self.assertEqual(c, Decimal('-6.1')) |
| 726 | self.assertEqual(type(c), type(d1)) |
| 727 | |
| 728 | #inline with decimal |
| 729 | d1 += d2 |
| 730 | self.assertEqual(d1, Decimal('11.1')) |
| 731 | |
| 732 | #inline with other type |
| 733 | d1 += 5 |
| 734 | self.assertEqual(d1, Decimal('16.1')) |
| 735 | |
| 736 | def test_subtraction(self): |
| 737 | |
| 738 | d1 = Decimal('-11.1') |
| 739 | d2 = Decimal('22.2') |
| 740 | |
| 741 | #two Decimals |
| 742 | self.assertEqual(d1-d2, Decimal('-33.3')) |
| 743 | self.assertEqual(d2-d1, Decimal('33.3')) |
| 744 | |
| 745 | #with other type, left |
| 746 | c = d1 - 5 |
| 747 | self.assertEqual(c, Decimal('-16.1')) |
| 748 | self.assertEqual(type(c), type(d1)) |
| 749 | |
| 750 | #with other type, right |
| 751 | c = 5 - d1 |
| 752 | self.assertEqual(c, Decimal('16.1')) |
| 753 | self.assertEqual(type(c), type(d1)) |
| 754 | |
| 755 | #inline with decimal |
| 756 | d1 -= d2 |
| 757 | self.assertEqual(d1, Decimal('-33.3')) |
| 758 | |
| 759 | #inline with other type |
| 760 | d1 -= 5 |
| 761 | self.assertEqual(d1, Decimal('-38.3')) |
| 762 | |
| 763 | def test_multiplication(self): |
| 764 | |
| 765 | d1 = Decimal('-5') |
| 766 | d2 = Decimal('3') |
| 767 | |
| 768 | #two Decimals |
| 769 | self.assertEqual(d1*d2, Decimal('-15')) |
| 770 | self.assertEqual(d2*d1, Decimal('-15')) |
| 771 | |
| 772 | #with other type, left |
| 773 | c = d1 * 5 |
| 774 | self.assertEqual(c, Decimal('-25')) |
| 775 | self.assertEqual(type(c), type(d1)) |
| 776 | |
| 777 | #with other type, right |
| 778 | c = 5 * d1 |
| 779 | self.assertEqual(c, Decimal('-25')) |
| 780 | self.assertEqual(type(c), type(d1)) |
| 781 | |
| 782 | #inline with decimal |
| 783 | d1 *= d2 |
| 784 | self.assertEqual(d1, Decimal('-15')) |
| 785 | |
| 786 | #inline with other type |
| 787 | d1 *= 5 |
| 788 | self.assertEqual(d1, Decimal('-75')) |
| 789 | |
| 790 | def test_division(self): |
| 791 | |
| 792 | d1 = Decimal('-5') |
| 793 | d2 = Decimal('2') |
| 794 | |
| 795 | #two Decimals |
| 796 | self.assertEqual(d1/d2, Decimal('-2.5')) |
| 797 | self.assertEqual(d2/d1, Decimal('-0.4')) |
| 798 | |
| 799 | #with other type, left |
| 800 | c = d1 / 4 |
| 801 | self.assertEqual(c, Decimal('-1.25')) |
| 802 | self.assertEqual(type(c), type(d1)) |
| 803 | |
| 804 | #with other type, right |
| 805 | c = 4 / d1 |
| 806 | self.assertEqual(c, Decimal('-0.8')) |
| 807 | self.assertEqual(type(c), type(d1)) |
| 808 | |
| 809 | #inline with decimal |
| 810 | d1 /= d2 |
| 811 | self.assertEqual(d1, Decimal('-2.5')) |
| 812 | |
| 813 | #inline with other type |
| 814 | d1 /= 4 |
| 815 | self.assertEqual(d1, Decimal('-0.625')) |
| 816 | |
| 817 | def test_floor_division(self): |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 818 | |
| 819 | d1 = Decimal('5') |
| 820 | d2 = Decimal('2') |
| 821 | |
| 822 | #two Decimals |
| 823 | self.assertEqual(d1//d2, Decimal('2')) |
| 824 | self.assertEqual(d2//d1, Decimal('0')) |
| 825 | |
| 826 | #with other type, left |
| 827 | c = d1 // 4 |
| 828 | self.assertEqual(c, Decimal('1')) |
| 829 | self.assertEqual(type(c), type(d1)) |
| 830 | |
| 831 | #with other type, right |
| 832 | c = 7 // d1 |
| 833 | self.assertEqual(c, Decimal('1')) |
| 834 | self.assertEqual(type(c), type(d1)) |
| 835 | |
| 836 | #inline with decimal |
| 837 | d1 //= d2 |
| 838 | self.assertEqual(d1, Decimal('2')) |
| 839 | |
| 840 | #inline with other type |
| 841 | d1 //= 2 |
| 842 | self.assertEqual(d1, Decimal('1')) |
| 843 | |
| 844 | def test_powering(self): |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 845 | |
| 846 | d1 = Decimal('5') |
| 847 | d2 = Decimal('2') |
| 848 | |
| 849 | #two Decimals |
| 850 | self.assertEqual(d1**d2, Decimal('25')) |
| 851 | self.assertEqual(d2**d1, Decimal('32')) |
| 852 | |
| 853 | #with other type, left |
| 854 | c = d1 ** 4 |
| 855 | self.assertEqual(c, Decimal('625')) |
| 856 | self.assertEqual(type(c), type(d1)) |
| 857 | |
| 858 | #with other type, right |
| 859 | c = 7 ** d1 |
| 860 | self.assertEqual(c, Decimal('16807')) |
| 861 | self.assertEqual(type(c), type(d1)) |
| 862 | |
| 863 | #inline with decimal |
| 864 | d1 **= d2 |
| 865 | self.assertEqual(d1, Decimal('25')) |
| 866 | |
| 867 | #inline with other type |
| 868 | d1 **= 4 |
| 869 | self.assertEqual(d1, Decimal('390625')) |
| 870 | |
| 871 | def test_module(self): |
| 872 | |
| 873 | d1 = Decimal('5') |
| 874 | d2 = Decimal('2') |
| 875 | |
| 876 | #two Decimals |
| 877 | self.assertEqual(d1%d2, Decimal('1')) |
| 878 | self.assertEqual(d2%d1, Decimal('2')) |
| 879 | |
| 880 | #with other type, left |
| 881 | c = d1 % 4 |
| 882 | self.assertEqual(c, Decimal('1')) |
| 883 | self.assertEqual(type(c), type(d1)) |
| 884 | |
| 885 | #with other type, right |
| 886 | c = 7 % d1 |
| 887 | self.assertEqual(c, Decimal('2')) |
| 888 | self.assertEqual(type(c), type(d1)) |
| 889 | |
| 890 | #inline with decimal |
| 891 | d1 %= d2 |
| 892 | self.assertEqual(d1, Decimal('1')) |
| 893 | |
| 894 | #inline with other type |
| 895 | d1 %= 4 |
| 896 | self.assertEqual(d1, Decimal('1')) |
| 897 | |
| 898 | def test_floor_div_module(self): |
| 899 | |
| 900 | d1 = Decimal('5') |
| 901 | d2 = Decimal('2') |
| 902 | |
| 903 | #two Decimals |
| 904 | (p, q) = divmod(d1, d2) |
| 905 | self.assertEqual(p, Decimal('2')) |
| 906 | self.assertEqual(q, Decimal('1')) |
| 907 | self.assertEqual(type(p), type(d1)) |
| 908 | self.assertEqual(type(q), type(d1)) |
| 909 | |
| 910 | #with other type, left |
| 911 | (p, q) = divmod(d1, 4) |
| 912 | self.assertEqual(p, Decimal('1')) |
| 913 | self.assertEqual(q, Decimal('1')) |
| 914 | self.assertEqual(type(p), type(d1)) |
| 915 | self.assertEqual(type(q), type(d1)) |
| 916 | |
| 917 | #with other type, right |
| 918 | (p, q) = divmod(7, d1) |
| 919 | self.assertEqual(p, Decimal('1')) |
| 920 | self.assertEqual(q, Decimal('2')) |
| 921 | self.assertEqual(type(p), type(d1)) |
| 922 | self.assertEqual(type(q), type(d1)) |
| 923 | |
| 924 | def test_unary_operators(self): |
| 925 | self.assertEqual(+Decimal(45), Decimal(+45)) # + |
| 926 | self.assertEqual(-Decimal(45), Decimal(-45)) # - |
| 927 | self.assertEqual(abs(Decimal(45)), abs(Decimal(-45))) # abs |
| 928 | |
Christian Heimes | 77c02eb | 2008-02-09 02:18:51 +0000 | [diff] [blame] | 929 | def test_nan_comparisons(self): |
| 930 | n = Decimal('NaN') |
| 931 | s = Decimal('sNaN') |
| 932 | i = Decimal('Inf') |
| 933 | f = Decimal('2') |
| 934 | for x, y in [(n, n), (n, i), (i, n), (n, f), (f, n), |
| 935 | (s, n), (n, s), (s, i), (i, s), (s, f), (f, s), (s, s)]: |
| 936 | self.assert_(x != y) |
| 937 | self.assert_(not (x == y)) |
| 938 | self.assert_(not (x < y)) |
| 939 | self.assert_(not (x <= y)) |
| 940 | self.assert_(not (x > y)) |
| 941 | self.assert_(not (x >= y)) |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 942 | |
| 943 | # The following are two functions used to test threading in the next class |
| 944 | |
| 945 | def thfunc1(cls): |
| 946 | d1 = Decimal(1) |
| 947 | d3 = Decimal(3) |
Christian Heimes | fe337bf | 2008-03-23 21:54:12 +0000 | [diff] [blame] | 948 | test1 = d1/d3 |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 949 | cls.synchro.wait() |
Christian Heimes | fe337bf | 2008-03-23 21:54:12 +0000 | [diff] [blame] | 950 | test2 = d1/d3 |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 951 | cls.finish1.set() |
Christian Heimes | fe337bf | 2008-03-23 21:54:12 +0000 | [diff] [blame] | 952 | |
Christian Heimes | 81ee3ef | 2008-05-04 22:42:01 +0000 | [diff] [blame] | 953 | cls.assertEqual(test1, Decimal('0.3333333333333333333333333333')) |
| 954 | cls.assertEqual(test2, Decimal('0.3333333333333333333333333333')) |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 955 | return |
| 956 | |
| 957 | def thfunc2(cls): |
| 958 | d1 = Decimal(1) |
| 959 | d3 = Decimal(3) |
Christian Heimes | fe337bf | 2008-03-23 21:54:12 +0000 | [diff] [blame] | 960 | test1 = d1/d3 |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 961 | thiscontext = getcontext() |
| 962 | thiscontext.prec = 18 |
Christian Heimes | fe337bf | 2008-03-23 21:54:12 +0000 | [diff] [blame] | 963 | test2 = d1/d3 |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 964 | cls.synchro.set() |
| 965 | cls.finish2.set() |
Christian Heimes | fe337bf | 2008-03-23 21:54:12 +0000 | [diff] [blame] | 966 | |
Christian Heimes | 81ee3ef | 2008-05-04 22:42:01 +0000 | [diff] [blame] | 967 | cls.assertEqual(test1, Decimal('0.3333333333333333333333333333')) |
Christian Heimes | fe337bf | 2008-03-23 21:54:12 +0000 | [diff] [blame] | 968 | cls.assertEqual(test2, Decimal('0.333333333333333333')) |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 969 | return |
| 970 | |
| 971 | |
| 972 | class DecimalUseOfContextTest(unittest.TestCase): |
| 973 | '''Unit tests for Use of Context cases in Decimal.''' |
| 974 | |
Raymond Hettinger | 7e71fa5 | 2004-12-18 19:07:19 +0000 | [diff] [blame] | 975 | try: |
| 976 | import threading |
| 977 | except ImportError: |
| 978 | threading = None |
| 979 | |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 980 | # Take care executing this test from IDLE, there's an issue in threading |
| 981 | # that hangs IDLE and I couldn't find it |
| 982 | |
| 983 | def test_threading(self): |
| 984 | #Test the "threading isolation" of a Context. |
| 985 | |
| 986 | self.synchro = threading.Event() |
| 987 | self.finish1 = threading.Event() |
| 988 | self.finish2 = threading.Event() |
| 989 | |
| 990 | th1 = threading.Thread(target=thfunc1, args=(self,)) |
| 991 | th2 = threading.Thread(target=thfunc2, args=(self,)) |
| 992 | |
| 993 | th1.start() |
| 994 | th2.start() |
| 995 | |
| 996 | self.finish1.wait() |
Thomas Wouters | 1b7f891 | 2007-09-19 03:06:30 +0000 | [diff] [blame] | 997 | self.finish2.wait() |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 998 | return |
| 999 | |
Raymond Hettinger | 7e71fa5 | 2004-12-18 19:07:19 +0000 | [diff] [blame] | 1000 | if threading is None: |
| 1001 | del test_threading |
| 1002 | |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 1003 | |
| 1004 | class DecimalUsabilityTest(unittest.TestCase): |
| 1005 | '''Unit tests for Usability cases of Decimal.''' |
| 1006 | |
| 1007 | def test_comparison_operators(self): |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 1008 | |
| 1009 | da = Decimal('23.42') |
| 1010 | db = Decimal('23.42') |
| 1011 | dc = Decimal('45') |
| 1012 | |
| 1013 | #two Decimals |
| 1014 | self.failUnless(dc > da) |
| 1015 | self.failUnless(dc >= da) |
| 1016 | self.failUnless(da < dc) |
| 1017 | self.failUnless(da <= dc) |
Guido van Rossum | e61fd5b | 2007-07-11 12:20:59 +0000 | [diff] [blame] | 1018 | self.assertEqual(da, db) |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 1019 | self.failUnless(da != dc) |
| 1020 | self.failUnless(da <= db) |
| 1021 | self.failUnless(da >= db) |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 1022 | |
| 1023 | #a Decimal and an int |
| 1024 | self.failUnless(dc > 23) |
| 1025 | self.failUnless(23 < dc) |
Guido van Rossum | e61fd5b | 2007-07-11 12:20:59 +0000 | [diff] [blame] | 1026 | self.assertEqual(dc, 45) |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 1027 | |
| 1028 | #a Decimal and uncomparable |
Raymond Hettinger | 0aeac10 | 2004-07-05 22:53:03 +0000 | [diff] [blame] | 1029 | self.assertNotEqual(da, 'ugly') |
| 1030 | self.assertNotEqual(da, 32.7) |
| 1031 | self.assertNotEqual(da, object()) |
| 1032 | self.assertNotEqual(da, object) |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 1033 | |
Raymond Hettinger | 0aeac10 | 2004-07-05 22:53:03 +0000 | [diff] [blame] | 1034 | # sortable |
Guido van Rossum | c1f779c | 2007-07-03 08:25:58 +0000 | [diff] [blame] | 1035 | a = list(map(Decimal, range(100))) |
Raymond Hettinger | 0aeac10 | 2004-07-05 22:53:03 +0000 | [diff] [blame] | 1036 | b = a[:] |
| 1037 | random.shuffle(a) |
| 1038 | a.sort() |
| 1039 | self.assertEqual(a, b) |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 1040 | |
| 1041 | def test_copy_and_deepcopy_methods(self): |
| 1042 | d = Decimal('43.24') |
| 1043 | c = copy.copy(d) |
| 1044 | self.assertEqual(id(c), id(d)) |
| 1045 | dc = copy.deepcopy(d) |
| 1046 | self.assertEqual(id(dc), id(d)) |
| 1047 | |
| 1048 | def test_hash_method(self): |
| 1049 | #just that it's hashable |
| 1050 | hash(Decimal(23)) |
Thomas Wouters | 8ce81f7 | 2007-09-20 18:22:40 +0000 | [diff] [blame] | 1051 | |
| 1052 | test_values = [Decimal(sign*(2**m + n)) |
| 1053 | for m in [0, 14, 15, 16, 17, 30, 31, |
| 1054 | 32, 33, 62, 63, 64, 65, 66] |
| 1055 | for n in range(-10, 10) |
| 1056 | for sign in [-1, 1]] |
| 1057 | test_values.extend([ |
| 1058 | Decimal("-0"), # zeros |
| 1059 | Decimal("0.00"), |
| 1060 | Decimal("-0.000"), |
| 1061 | Decimal("0E10"), |
| 1062 | Decimal("-0E12"), |
| 1063 | Decimal("10.0"), # negative exponent |
| 1064 | Decimal("-23.00000"), |
| 1065 | Decimal("1230E100"), # positive exponent |
| 1066 | Decimal("-4.5678E50"), |
| 1067 | # a value for which hash(n) != hash(n % (2**64-1)) |
| 1068 | # in Python pre-2.6 |
| 1069 | Decimal(2**64 + 2**32 - 1), |
| 1070 | # selection of values which fail with the old (before |
| 1071 | # version 2.6) long.__hash__ |
| 1072 | Decimal("1.634E100"), |
| 1073 | Decimal("90.697E100"), |
| 1074 | Decimal("188.83E100"), |
| 1075 | Decimal("1652.9E100"), |
| 1076 | Decimal("56531E100"), |
| 1077 | ]) |
| 1078 | |
| 1079 | # check that hash(d) == hash(int(d)) for integral values |
| 1080 | for value in test_values: |
| 1081 | self.assertEqual(hash(value), hash(int(value))) |
| 1082 | |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 1083 | #the same hash that to an int |
| 1084 | self.assertEqual(hash(Decimal(23)), hash(23)) |
Raymond Hettinger | bea3f6f | 2005-03-15 04:59:17 +0000 | [diff] [blame] | 1085 | self.assertRaises(TypeError, hash, Decimal('NaN')) |
| 1086 | self.assert_(hash(Decimal('Inf'))) |
| 1087 | self.assert_(hash(Decimal('-Inf'))) |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 1088 | |
Christian Heimes | 2380ac7 | 2008-01-09 00:17:24 +0000 | [diff] [blame] | 1089 | # check that the value of the hash doesn't depend on the |
| 1090 | # current context (issue #1757) |
| 1091 | c = getcontext() |
| 1092 | old_precision = c.prec |
| 1093 | x = Decimal("123456789.1") |
| 1094 | |
| 1095 | c.prec = 6 |
| 1096 | h1 = hash(x) |
| 1097 | c.prec = 10 |
| 1098 | h2 = hash(x) |
| 1099 | c.prec = 16 |
| 1100 | h3 = hash(x) |
| 1101 | |
| 1102 | self.assertEqual(h1, h2) |
| 1103 | self.assertEqual(h1, h3) |
| 1104 | c.prec = old_precision |
| 1105 | |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 1106 | def test_min_and_max_methods(self): |
| 1107 | |
| 1108 | d1 = Decimal('15.32') |
| 1109 | d2 = Decimal('28.5') |
| 1110 | l1 = 15 |
| 1111 | l2 = 28 |
| 1112 | |
| 1113 | #between Decimals |
| 1114 | self.failUnless(min(d1,d2) is d1) |
| 1115 | self.failUnless(min(d2,d1) is d1) |
| 1116 | self.failUnless(max(d1,d2) is d2) |
| 1117 | self.failUnless(max(d2,d1) is d2) |
| 1118 | |
| 1119 | #between Decimal and long |
| 1120 | self.failUnless(min(d1,l2) is d1) |
| 1121 | self.failUnless(min(l2,d1) is d1) |
| 1122 | self.failUnless(max(l1,d2) is d2) |
| 1123 | self.failUnless(max(d2,l1) is d2) |
| 1124 | |
| 1125 | def test_as_nonzero(self): |
| 1126 | #as false |
| 1127 | self.failIf(Decimal(0)) |
| 1128 | #as true |
| 1129 | self.failUnless(Decimal('0.372')) |
| 1130 | |
| 1131 | def test_tostring_methods(self): |
| 1132 | #Test str and repr methods. |
| 1133 | |
| 1134 | d = Decimal('15.32') |
| 1135 | self.assertEqual(str(d), '15.32') # str |
Christian Heimes | 68f5fbe | 2008-02-14 08:27:37 +0000 | [diff] [blame] | 1136 | self.assertEqual(repr(d), "Decimal('15.32')") # repr |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 1137 | |
| 1138 | def test_tonum_methods(self): |
| 1139 | #Test float, int and long methods. |
| 1140 | |
| 1141 | d1 = Decimal('66') |
| 1142 | d2 = Decimal('15.32') |
| 1143 | |
| 1144 | #int |
| 1145 | self.assertEqual(int(d1), 66) |
| 1146 | self.assertEqual(int(d2), 15) |
| 1147 | |
| 1148 | #long |
Guido van Rossum | e2a383d | 2007-01-15 16:59:06 +0000 | [diff] [blame] | 1149 | self.assertEqual(int(d1), 66) |
| 1150 | self.assertEqual(int(d2), 15) |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 1151 | |
| 1152 | #float |
| 1153 | self.assertEqual(float(d1), 66) |
| 1154 | self.assertEqual(float(d2), 15.32) |
| 1155 | |
Mark Dickinson | b27406c | 2008-05-09 13:42:33 +0000 | [diff] [blame] | 1156 | #floor |
| 1157 | test_pairs = [ |
| 1158 | ('123.00', 123), |
| 1159 | ('3.2', 3), |
| 1160 | ('3.54', 3), |
| 1161 | ('3.899', 3), |
| 1162 | ('-2.3', -3), |
| 1163 | ('-11.0', -11), |
| 1164 | ('0.0', 0), |
| 1165 | ('-0E3', 0), |
| 1166 | ] |
| 1167 | for d, i in test_pairs: |
| 1168 | self.assertEqual(math.floor(Decimal(d)), i) |
| 1169 | self.assertRaises(ValueError, math.floor, Decimal('-NaN')) |
| 1170 | self.assertRaises(ValueError, math.floor, Decimal('sNaN')) |
| 1171 | self.assertRaises(ValueError, math.floor, Decimal('NaN123')) |
| 1172 | self.assertRaises(OverflowError, math.floor, Decimal('Inf')) |
| 1173 | self.assertRaises(OverflowError, math.floor, Decimal('-Inf')) |
| 1174 | |
| 1175 | #ceiling |
| 1176 | test_pairs = [ |
| 1177 | ('123.00', 123), |
| 1178 | ('3.2', 4), |
| 1179 | ('3.54', 4), |
| 1180 | ('3.899', 4), |
| 1181 | ('-2.3', -2), |
| 1182 | ('-11.0', -11), |
| 1183 | ('0.0', 0), |
| 1184 | ('-0E3', 0), |
| 1185 | ] |
| 1186 | for d, i in test_pairs: |
| 1187 | self.assertEqual(math.ceil(Decimal(d)), i) |
| 1188 | self.assertRaises(ValueError, math.ceil, Decimal('-NaN')) |
| 1189 | self.assertRaises(ValueError, math.ceil, Decimal('sNaN')) |
| 1190 | self.assertRaises(ValueError, math.ceil, Decimal('NaN123')) |
| 1191 | self.assertRaises(OverflowError, math.ceil, Decimal('Inf')) |
| 1192 | self.assertRaises(OverflowError, math.ceil, Decimal('-Inf')) |
| 1193 | |
| 1194 | #round, single argument |
| 1195 | test_pairs = [ |
| 1196 | ('123.00', 123), |
| 1197 | ('3.2', 3), |
| 1198 | ('3.54', 4), |
| 1199 | ('3.899', 4), |
| 1200 | ('-2.3', -2), |
| 1201 | ('-11.0', -11), |
| 1202 | ('0.0', 0), |
| 1203 | ('-0E3', 0), |
| 1204 | ('-3.5', -4), |
| 1205 | ('-2.5', -2), |
| 1206 | ('-1.5', -2), |
| 1207 | ('-0.5', 0), |
| 1208 | ('0.5', 0), |
| 1209 | ('1.5', 2), |
| 1210 | ('2.5', 2), |
| 1211 | ('3.5', 4), |
| 1212 | ] |
| 1213 | for d, i in test_pairs: |
| 1214 | self.assertEqual(round(Decimal(d)), i) |
| 1215 | self.assertRaises(ValueError, round, Decimal('-NaN')) |
| 1216 | self.assertRaises(ValueError, round, Decimal('sNaN')) |
| 1217 | self.assertRaises(ValueError, round, Decimal('NaN123')) |
| 1218 | self.assertRaises(OverflowError, round, Decimal('Inf')) |
| 1219 | self.assertRaises(OverflowError, round, Decimal('-Inf')) |
| 1220 | |
| 1221 | #round, two arguments; this is essentially equivalent |
| 1222 | #to quantize, which is already extensively tested |
| 1223 | test_triples = [ |
| 1224 | ('123.456', -4, '0E+4'), |
| 1225 | ('123.456', -3, '0E+3'), |
| 1226 | ('123.456', -2, '1E+2'), |
| 1227 | ('123.456', -1, '1.2E+2'), |
| 1228 | ('123.456', 0, '123'), |
| 1229 | ('123.456', 1, '123.5'), |
| 1230 | ('123.456', 2, '123.46'), |
| 1231 | ('123.456', 3, '123.456'), |
| 1232 | ('123.456', 4, '123.4560'), |
| 1233 | ('123.455', 2, '123.46'), |
| 1234 | ('123.445', 2, '123.44'), |
| 1235 | ('Inf', 4, 'NaN'), |
| 1236 | ('-Inf', -23, 'NaN'), |
| 1237 | ('sNaN314', 3, 'NaN314'), |
| 1238 | ] |
| 1239 | for d, n, r in test_triples: |
| 1240 | self.assertEqual(str(round(Decimal(d), n)), r) |
| 1241 | |
| 1242 | |
| 1243 | |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 1244 | def test_eval_round_trip(self): |
| 1245 | |
| 1246 | #with zero |
| 1247 | d = Decimal( (0, (0,), 0) ) |
| 1248 | self.assertEqual(d, eval(repr(d))) |
| 1249 | |
| 1250 | #int |
| 1251 | d = Decimal( (1, (4, 5), 0) ) |
| 1252 | self.assertEqual(d, eval(repr(d))) |
| 1253 | |
| 1254 | #float |
| 1255 | d = Decimal( (0, (4, 5, 3, 4), -2) ) |
| 1256 | self.assertEqual(d, eval(repr(d))) |
| 1257 | |
| 1258 | #weird |
| 1259 | d = Decimal( (1, (4, 3, 4, 9, 1, 3, 5, 3, 4), -25) ) |
| 1260 | self.assertEqual(d, eval(repr(d))) |
| 1261 | |
| 1262 | def test_as_tuple(self): |
| 1263 | |
| 1264 | #with zero |
| 1265 | d = Decimal(0) |
| 1266 | self.assertEqual(d.as_tuple(), (0, (0,), 0) ) |
| 1267 | |
| 1268 | #int |
| 1269 | d = Decimal(-45) |
| 1270 | self.assertEqual(d.as_tuple(), (1, (4, 5), 0) ) |
| 1271 | |
| 1272 | #complicated string |
| 1273 | d = Decimal("-4.34913534E-17") |
| 1274 | self.assertEqual(d.as_tuple(), (1, (4, 3, 4, 9, 1, 3, 5, 3, 4), -25) ) |
| 1275 | |
| 1276 | #inf |
| 1277 | d = Decimal("Infinity") |
| 1278 | self.assertEqual(d.as_tuple(), (0, (0,), 'F') ) |
| 1279 | |
Guido van Rossum | 8ce8a78 | 2007-11-01 19:42:39 +0000 | [diff] [blame] | 1280 | #leading zeros in coefficient should be stripped |
| 1281 | d = Decimal( (0, (0, 0, 4, 0, 5, 3, 4), -2) ) |
| 1282 | self.assertEqual(d.as_tuple(), (0, (4, 0, 5, 3, 4), -2) ) |
| 1283 | d = Decimal( (1, (0, 0, 0), 37) ) |
| 1284 | self.assertEqual(d.as_tuple(), (1, (0,), 37)) |
| 1285 | d = Decimal( (1, (), 37) ) |
| 1286 | self.assertEqual(d.as_tuple(), (1, (0,), 37)) |
| 1287 | |
| 1288 | #leading zeros in NaN diagnostic info should be stripped |
| 1289 | d = Decimal( (0, (0, 0, 4, 0, 5, 3, 4), 'n') ) |
| 1290 | self.assertEqual(d.as_tuple(), (0, (4, 0, 5, 3, 4), 'n') ) |
| 1291 | d = Decimal( (1, (0, 0, 0), 'N') ) |
| 1292 | self.assertEqual(d.as_tuple(), (1, (), 'N') ) |
| 1293 | d = Decimal( (1, (), 'n') ) |
| 1294 | self.assertEqual(d.as_tuple(), (1, (), 'n') ) |
| 1295 | |
| 1296 | #coefficient in infinity should be ignored |
| 1297 | d = Decimal( (0, (4, 5, 3, 4), 'F') ) |
| 1298 | self.assertEqual(d.as_tuple(), (0, (0,), 'F')) |
| 1299 | d = Decimal( (1, (0, 2, 7, 1), 'F') ) |
| 1300 | self.assertEqual(d.as_tuple(), (1, (0,), 'F')) |
| 1301 | |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 1302 | def test_immutability_operations(self): |
| 1303 | # Do operations and check that it didn't change change internal objects. |
| 1304 | |
| 1305 | d1 = Decimal('-25e55') |
| 1306 | b1 = Decimal('-25e55') |
Thomas Wouters | 1b7f891 | 2007-09-19 03:06:30 +0000 | [diff] [blame] | 1307 | d2 = Decimal('33e+33') |
| 1308 | b2 = Decimal('33e+33') |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 1309 | |
| 1310 | def checkSameDec(operation, useOther=False): |
| 1311 | if useOther: |
| 1312 | eval("d1." + operation + "(d2)") |
| 1313 | self.assertEqual(d1._sign, b1._sign) |
| 1314 | self.assertEqual(d1._int, b1._int) |
| 1315 | self.assertEqual(d1._exp, b1._exp) |
| 1316 | self.assertEqual(d2._sign, b2._sign) |
| 1317 | self.assertEqual(d2._int, b2._int) |
| 1318 | self.assertEqual(d2._exp, b2._exp) |
| 1319 | else: |
| 1320 | eval("d1." + operation + "()") |
| 1321 | self.assertEqual(d1._sign, b1._sign) |
| 1322 | self.assertEqual(d1._int, b1._int) |
| 1323 | self.assertEqual(d1._exp, b1._exp) |
| 1324 | return |
| 1325 | |
| 1326 | Decimal(d1) |
| 1327 | self.assertEqual(d1._sign, b1._sign) |
| 1328 | self.assertEqual(d1._int, b1._int) |
| 1329 | self.assertEqual(d1._exp, b1._exp) |
| 1330 | |
| 1331 | checkSameDec("__abs__") |
| 1332 | checkSameDec("__add__", True) |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 1333 | checkSameDec("__divmod__", True) |
Christian Heimes | 77c02eb | 2008-02-09 02:18:51 +0000 | [diff] [blame] | 1334 | checkSameDec("__eq__", True) |
| 1335 | checkSameDec("__ne__", True) |
| 1336 | checkSameDec("__le__", True) |
| 1337 | checkSameDec("__lt__", True) |
| 1338 | checkSameDec("__ge__", True) |
| 1339 | checkSameDec("__gt__", True) |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 1340 | checkSameDec("__float__") |
| 1341 | checkSameDec("__floordiv__", True) |
| 1342 | checkSameDec("__hash__") |
| 1343 | checkSameDec("__int__") |
Christian Heimes | 969fe57 | 2008-01-25 11:23:10 +0000 | [diff] [blame] | 1344 | checkSameDec("__trunc__") |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 1345 | checkSameDec("__mod__", True) |
| 1346 | checkSameDec("__mul__", True) |
| 1347 | checkSameDec("__neg__") |
Jack Diederich | 4dafcc4 | 2006-11-28 19:15:13 +0000 | [diff] [blame] | 1348 | checkSameDec("__bool__") |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 1349 | checkSameDec("__pos__") |
| 1350 | checkSameDec("__pow__", True) |
| 1351 | checkSameDec("__radd__", True) |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 1352 | checkSameDec("__rdivmod__", True) |
| 1353 | checkSameDec("__repr__") |
| 1354 | checkSameDec("__rfloordiv__", True) |
| 1355 | checkSameDec("__rmod__", True) |
| 1356 | checkSameDec("__rmul__", True) |
| 1357 | checkSameDec("__rpow__", True) |
| 1358 | checkSameDec("__rsub__", True) |
| 1359 | checkSameDec("__str__") |
| 1360 | checkSameDec("__sub__", True) |
| 1361 | checkSameDec("__truediv__", True) |
| 1362 | checkSameDec("adjusted") |
| 1363 | checkSameDec("as_tuple") |
| 1364 | checkSameDec("compare", True) |
| 1365 | checkSameDec("max", True) |
| 1366 | checkSameDec("min", True) |
| 1367 | checkSameDec("normalize") |
| 1368 | checkSameDec("quantize", True) |
| 1369 | checkSameDec("remainder_near", True) |
| 1370 | checkSameDec("same_quantum", True) |
| 1371 | checkSameDec("sqrt") |
| 1372 | checkSameDec("to_eng_string") |
| 1373 | checkSameDec("to_integral") |
| 1374 | |
Thomas Wouters | 1b7f891 | 2007-09-19 03:06:30 +0000 | [diff] [blame] | 1375 | def test_subclassing(self): |
| 1376 | # Different behaviours when subclassing Decimal |
| 1377 | |
| 1378 | class MyDecimal(Decimal): |
| 1379 | pass |
| 1380 | |
| 1381 | d1 = MyDecimal(1) |
| 1382 | d2 = MyDecimal(2) |
| 1383 | d = d1 + d2 |
| 1384 | self.assertTrue(type(d) is Decimal) |
| 1385 | |
| 1386 | d = d1.max(d2) |
| 1387 | self.assertTrue(type(d) is Decimal) |
| 1388 | |
Christian Heimes | 0348fb6 | 2008-03-26 12:55:56 +0000 | [diff] [blame] | 1389 | def test_implicit_context(self): |
| 1390 | # Check results when context given implicitly. (Issue 2478) |
| 1391 | c = getcontext() |
| 1392 | self.assertEqual(str(Decimal(0).sqrt()), |
| 1393 | str(c.sqrt(Decimal(0)))) |
| 1394 | |
Thomas Wouters | 1b7f891 | 2007-09-19 03:06:30 +0000 | [diff] [blame] | 1395 | |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 1396 | class DecimalPythonAPItests(unittest.TestCase): |
| 1397 | |
Raymond Hettinger | 82417ca | 2009-02-03 03:54:28 +0000 | [diff] [blame] | 1398 | def test_abc(self): |
| 1399 | self.assert_(issubclass(Decimal, numbers.Number)) |
| 1400 | self.assert_(not issubclass(Decimal, numbers.Real)) |
| 1401 | self.assert_(isinstance(Decimal(0), numbers.Number)) |
| 1402 | self.assert_(not isinstance(Decimal(0), numbers.Real)) |
| 1403 | |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 1404 | def test_pickle(self): |
| 1405 | d = Decimal('-3.141590000') |
| 1406 | p = pickle.dumps(d) |
| 1407 | e = pickle.loads(p) |
| 1408 | self.assertEqual(d, e) |
| 1409 | |
Raymond Hettinger | 5548be2 | 2004-07-05 18:49:38 +0000 | [diff] [blame] | 1410 | def test_int(self): |
Raymond Hettinger | 605ed02 | 2004-11-24 07:28:48 +0000 | [diff] [blame] | 1411 | for x in range(-250, 250): |
| 1412 | s = '%0.2f' % (x / 100.0) |
Raymond Hettinger | 5548be2 | 2004-07-05 18:49:38 +0000 | [diff] [blame] | 1413 | # should work the same as for floats |
| 1414 | self.assertEqual(int(Decimal(s)), int(float(s))) |
Raymond Hettinger | 605ed02 | 2004-11-24 07:28:48 +0000 | [diff] [blame] | 1415 | # should work the same as to_integral in the ROUND_DOWN mode |
Raymond Hettinger | 5548be2 | 2004-07-05 18:49:38 +0000 | [diff] [blame] | 1416 | d = Decimal(s) |
Raymond Hettinger | 605ed02 | 2004-11-24 07:28:48 +0000 | [diff] [blame] | 1417 | r = d.to_integral(ROUND_DOWN) |
Raymond Hettinger | 5548be2 | 2004-07-05 18:49:38 +0000 | [diff] [blame] | 1418 | self.assertEqual(Decimal(int(d)), r) |
| 1419 | |
Christian Heimes | 969fe57 | 2008-01-25 11:23:10 +0000 | [diff] [blame] | 1420 | def test_trunc(self): |
| 1421 | for x in range(-250, 250): |
| 1422 | s = '%0.2f' % (x / 100.0) |
| 1423 | # should work the same as for floats |
| 1424 | self.assertEqual(int(Decimal(s)), int(float(s))) |
| 1425 | # should work the same as to_integral in the ROUND_DOWN mode |
| 1426 | d = Decimal(s) |
| 1427 | r = d.to_integral(ROUND_DOWN) |
Christian Heimes | 400adb0 | 2008-02-01 08:12:03 +0000 | [diff] [blame] | 1428 | self.assertEqual(Decimal(math.trunc(d)), r) |
Christian Heimes | 969fe57 | 2008-01-25 11:23:10 +0000 | [diff] [blame] | 1429 | |
Raymond Hettinger | 771ed76 | 2009-01-03 19:20:32 +0000 | [diff] [blame] | 1430 | def test_from_float(self): |
| 1431 | |
| 1432 | class MyDecimal(Decimal): |
| 1433 | pass |
| 1434 | |
| 1435 | r = MyDecimal.from_float(0.1) |
| 1436 | self.assertEqual(type(r), MyDecimal) |
| 1437 | self.assertEqual(str(r), |
| 1438 | '0.1000000000000000055511151231257827021181583404541015625') |
| 1439 | bigint = 12345678901234567890123456789 |
| 1440 | self.assertEqual(MyDecimal.from_float(bigint), MyDecimal(bigint)) |
| 1441 | self.assert_(MyDecimal.from_float(float('nan')).is_qnan()) |
| 1442 | self.assert_(MyDecimal.from_float(float('inf')).is_infinite()) |
| 1443 | self.assert_(MyDecimal.from_float(float('-inf')).is_infinite()) |
| 1444 | self.assertEqual(str(MyDecimal.from_float(float('nan'))), |
| 1445 | str(Decimal('NaN'))) |
| 1446 | self.assertEqual(str(MyDecimal.from_float(float('inf'))), |
| 1447 | str(Decimal('Infinity'))) |
| 1448 | self.assertEqual(str(MyDecimal.from_float(float('-inf'))), |
| 1449 | str(Decimal('-Infinity'))) |
| 1450 | self.assertRaises(TypeError, MyDecimal.from_float, 'abc') |
| 1451 | for i in range(200): |
| 1452 | x = random.expovariate(0.01) * (random.random() * 2.0 - 1.0) |
| 1453 | self.assertEqual(x, float(MyDecimal.from_float(x))) # roundtrip |
| 1454 | |
| 1455 | def test_create_decimal_from_float(self): |
| 1456 | context = Context(prec=5, rounding=ROUND_DOWN) |
| 1457 | self.assertEqual( |
| 1458 | context.create_decimal_from_float(math.pi), |
| 1459 | Decimal('3.1415') |
| 1460 | ) |
| 1461 | context = Context(prec=5, rounding=ROUND_UP) |
| 1462 | self.assertEqual( |
| 1463 | context.create_decimal_from_float(math.pi), |
| 1464 | Decimal('3.1416') |
| 1465 | ) |
| 1466 | context = Context(prec=5, traps=[Inexact]) |
| 1467 | self.assertRaises( |
| 1468 | Inexact, |
| 1469 | context.create_decimal_from_float, |
| 1470 | math.pi |
| 1471 | ) |
| 1472 | self.assertEqual(repr(context.create_decimal_from_float(-0.0)), |
| 1473 | "Decimal('-0')") |
| 1474 | self.assertEqual(repr(context.create_decimal_from_float(1.0)), |
| 1475 | "Decimal('1')") |
| 1476 | self.assertEqual(repr(context.create_decimal_from_float(10)), |
| 1477 | "Decimal('10')") |
| 1478 | |
Raymond Hettinger | d9c0a7a | 2004-07-03 10:02:28 +0000 | [diff] [blame] | 1479 | class ContextAPItests(unittest.TestCase): |
| 1480 | |
| 1481 | def test_pickle(self): |
| 1482 | c = Context() |
| 1483 | e = pickle.loads(pickle.dumps(c)) |
| 1484 | for k in vars(c): |
| 1485 | v1 = vars(c)[k] |
| 1486 | v2 = vars(e)[k] |
| 1487 | self.assertEqual(v1, v2) |
| 1488 | |
Raymond Hettinger | 0aeac10 | 2004-07-05 22:53:03 +0000 | [diff] [blame] | 1489 | def test_equality_with_other_types(self): |
| 1490 | self.assert_(Decimal(10) in ['a', 1.0, Decimal(10), (1,2), {}]) |
| 1491 | self.assert_(Decimal(10) not in ['a', 1.0, (1,2), {}]) |
| 1492 | |
Raymond Hettinger | 955d2b2 | 2004-08-08 20:17:45 +0000 | [diff] [blame] | 1493 | def test_copy(self): |
| 1494 | # All copies should be deep |
| 1495 | c = Context() |
| 1496 | d = c.copy() |
| 1497 | self.assertNotEqual(id(c), id(d)) |
| 1498 | self.assertNotEqual(id(c.flags), id(d.flags)) |
| 1499 | self.assertNotEqual(id(c.traps), id(d.traps)) |
| 1500 | |
Thomas Wouters | 89f507f | 2006-12-13 04:49:30 +0000 | [diff] [blame] | 1501 | class WithStatementTest(unittest.TestCase): |
| 1502 | # Can't do these as docstrings until Python 2.6 |
| 1503 | # as doctest can't handle __future__ statements |
| 1504 | |
| 1505 | def test_localcontext(self): |
| 1506 | # Use a copy of the current context in the block |
| 1507 | orig_ctx = getcontext() |
| 1508 | with localcontext() as enter_ctx: |
| 1509 | set_ctx = getcontext() |
| 1510 | final_ctx = getcontext() |
| 1511 | self.assert_(orig_ctx is final_ctx, 'did not restore context correctly') |
| 1512 | self.assert_(orig_ctx is not set_ctx, 'did not copy the context') |
| 1513 | self.assert_(set_ctx is enter_ctx, '__enter__ returned wrong context') |
| 1514 | |
| 1515 | def test_localcontextarg(self): |
| 1516 | # Use a copy of the supplied context in the block |
| 1517 | orig_ctx = getcontext() |
| 1518 | new_ctx = Context(prec=42) |
| 1519 | with localcontext(new_ctx) as enter_ctx: |
| 1520 | set_ctx = getcontext() |
| 1521 | final_ctx = getcontext() |
| 1522 | self.assert_(orig_ctx is final_ctx, 'did not restore context correctly') |
| 1523 | self.assert_(set_ctx.prec == new_ctx.prec, 'did not set correct context') |
| 1524 | self.assert_(new_ctx is not set_ctx, 'did not copy the context') |
| 1525 | self.assert_(set_ctx is enter_ctx, '__enter__ returned wrong context') |
| 1526 | |
Thomas Wouters | 1b7f891 | 2007-09-19 03:06:30 +0000 | [diff] [blame] | 1527 | class ContextFlags(unittest.TestCase): |
| 1528 | def test_flags_irrelevant(self): |
| 1529 | # check that the result (numeric result + flags raised) of an |
| 1530 | # arithmetic operation doesn't depend on the current flags |
| 1531 | |
| 1532 | context = Context(prec=9, Emin = -999999999, Emax = 999999999, |
| 1533 | rounding=ROUND_HALF_EVEN, traps=[], flags=[]) |
| 1534 | |
| 1535 | # operations that raise various flags, in the form (function, arglist) |
| 1536 | operations = [ |
| 1537 | (context._apply, [Decimal("100E-1000000009")]), |
| 1538 | (context.sqrt, [Decimal(2)]), |
| 1539 | (context.add, [Decimal("1.23456789"), Decimal("9.87654321")]), |
| 1540 | (context.multiply, [Decimal("1.23456789"), Decimal("9.87654321")]), |
| 1541 | (context.subtract, [Decimal("1.23456789"), Decimal("9.87654321")]), |
| 1542 | ] |
| 1543 | |
| 1544 | # try various flags individually, then a whole lot at once |
| 1545 | flagsets = [[Inexact], [Rounded], [Underflow], [Clamped], [Subnormal], |
| 1546 | [Inexact, Rounded, Underflow, Clamped, Subnormal]] |
| 1547 | |
| 1548 | for fn, args in operations: |
| 1549 | # find answer and flags raised using a clean context |
| 1550 | context.clear_flags() |
| 1551 | ans = fn(*args) |
| 1552 | flags = [k for k, v in context.flags.items() if v] |
| 1553 | |
| 1554 | for extra_flags in flagsets: |
| 1555 | # set flags, before calling operation |
| 1556 | context.clear_flags() |
| 1557 | for flag in extra_flags: |
| 1558 | context._raise_error(flag) |
| 1559 | new_ans = fn(*args) |
| 1560 | |
| 1561 | # flags that we expect to be set after the operation |
| 1562 | expected_flags = list(flags) |
| 1563 | for flag in extra_flags: |
| 1564 | if flag not in expected_flags: |
| 1565 | expected_flags.append(flag) |
| 1566 | expected_flags.sort(key=id) |
| 1567 | |
| 1568 | # flags we actually got |
| 1569 | new_flags = [k for k,v in context.flags.items() if v] |
| 1570 | new_flags.sort(key=id) |
| 1571 | |
| 1572 | self.assertEqual(ans, new_ans, |
| 1573 | "operation produces different answers depending on flags set: " + |
| 1574 | "expected %s, got %s." % (ans, new_ans)) |
| 1575 | self.assertEqual(new_flags, expected_flags, |
| 1576 | "operation raises different flags depending on flags set: " + |
| 1577 | "expected %s, got %s" % (expected_flags, new_flags)) |
| 1578 | |
| 1579 | def test_main(arith=False, verbose=None, todo_tests=None, debug=None): |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 1580 | """ Execute the tests. |
| 1581 | |
Raymond Hettinger | ed20ad8 | 2004-09-04 20:09:13 +0000 | [diff] [blame] | 1582 | Runs all arithmetic tests if arith is True or if the "decimal" resource |
| 1583 | is enabled in regrtest.py |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 1584 | """ |
Raymond Hettinger | ed20ad8 | 2004-09-04 20:09:13 +0000 | [diff] [blame] | 1585 | |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 1586 | init() |
Thomas Wouters | 1b7f891 | 2007-09-19 03:06:30 +0000 | [diff] [blame] | 1587 | global TEST_ALL, DEBUG |
Raymond Hettinger | ed20ad8 | 2004-09-04 20:09:13 +0000 | [diff] [blame] | 1588 | TEST_ALL = arith or is_resource_enabled('decimal') |
Thomas Wouters | 1b7f891 | 2007-09-19 03:06:30 +0000 | [diff] [blame] | 1589 | DEBUG = debug |
Raymond Hettinger | ed20ad8 | 2004-09-04 20:09:13 +0000 | [diff] [blame] | 1590 | |
Thomas Wouters | 1b7f891 | 2007-09-19 03:06:30 +0000 | [diff] [blame] | 1591 | if todo_tests is None: |
| 1592 | test_classes = [ |
| 1593 | DecimalExplicitConstructionTest, |
| 1594 | DecimalImplicitConstructionTest, |
| 1595 | DecimalArithmeticOperatorsTest, |
Christian Heimes | f16baeb | 2008-02-29 14:57:44 +0000 | [diff] [blame] | 1596 | DecimalFormatTest, |
Thomas Wouters | 1b7f891 | 2007-09-19 03:06:30 +0000 | [diff] [blame] | 1597 | DecimalUseOfContextTest, |
| 1598 | DecimalUsabilityTest, |
| 1599 | DecimalPythonAPItests, |
| 1600 | ContextAPItests, |
| 1601 | DecimalTest, |
| 1602 | WithStatementTest, |
| 1603 | ContextFlags |
| 1604 | ] |
| 1605 | else: |
| 1606 | test_classes = [DecimalTest] |
| 1607 | |
| 1608 | # Dynamically build custom test definition for each file in the test |
| 1609 | # directory and add the definitions to the DecimalTest class. This |
| 1610 | # procedure insures that new files do not get skipped. |
| 1611 | for filename in os.listdir(directory): |
| 1612 | if '.decTest' not in filename or filename.startswith("."): |
| 1613 | continue |
| 1614 | head, tail = filename.split('.') |
| 1615 | if todo_tests is not None and head not in todo_tests: |
| 1616 | continue |
| 1617 | tester = lambda self, f=filename: self.eval_file(directory + f) |
| 1618 | setattr(DecimalTest, 'test_' + head, tester) |
| 1619 | del filename, head, tail, tester |
| 1620 | |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 1621 | |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 1622 | try: |
| 1623 | run_unittest(*test_classes) |
Thomas Wouters | 1b7f891 | 2007-09-19 03:06:30 +0000 | [diff] [blame] | 1624 | if todo_tests is None: |
| 1625 | import decimal as DecimalModule |
| 1626 | run_doctest(DecimalModule, verbose) |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 1627 | finally: |
| 1628 | setcontext(ORIGINAL_CONTEXT) |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 1629 | |
| 1630 | if __name__ == '__main__': |
Thomas Wouters | 1b7f891 | 2007-09-19 03:06:30 +0000 | [diff] [blame] | 1631 | import optparse |
| 1632 | p = optparse.OptionParser("test_decimal.py [--debug] [{--skip | test1 [test2 [...]]}]") |
| 1633 | p.add_option('--debug', '-d', action='store_true', help='shows the test number and context before each test') |
| 1634 | p.add_option('--skip', '-s', action='store_true', help='skip over 90% of the arithmetic tests') |
| 1635 | (opt, args) = p.parse_args() |
| 1636 | |
| 1637 | if opt.skip: |
| 1638 | test_main(arith=False, verbose=True) |
| 1639 | elif args: |
| 1640 | test_main(arith=True, verbose=True, todo_tests=args, debug=opt.debug) |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 1641 | else: |
Thomas Wouters | 1b7f891 | 2007-09-19 03:06:30 +0000 | [diff] [blame] | 1642 | test_main(arith=True, verbose=True) |