| # -*- coding: iso-8859-1 -*- |
| # Copyright (C) 2001,2002 Python Software Foundation |
| # csv package unit tests |
| |
| import sys |
| import unittest |
| from StringIO import StringIO |
| import csv |
| import gc |
| from test import test_support |
| |
| class Test_Csv(unittest.TestCase): |
| """ |
| Test the underlying C csv parser in ways that are not appropriate |
| from the high level interface. Further tests of this nature are done |
| in TestDialectRegistry. |
| """ |
| def test_reader_arg_valid(self): |
| self.assertRaises(TypeError, csv.reader) |
| self.assertRaises(TypeError, csv.reader, None) |
| self.assertRaises(AttributeError, csv.reader, [], bad_attr = 0) |
| self.assertRaises(csv.Error, csv.reader, [], 'foo') |
| class BadClass: |
| def __init__(self): |
| raise IOError |
| self.assertRaises(IOError, csv.reader, [], BadClass) |
| self.assertRaises(TypeError, csv.reader, [], None) |
| class BadDialect: |
| bad_attr = 0 |
| self.assertRaises(AttributeError, csv.reader, [], BadDialect) |
| |
| def test_writer_arg_valid(self): |
| self.assertRaises(TypeError, csv.writer) |
| self.assertRaises(TypeError, csv.writer, None) |
| self.assertRaises(AttributeError, csv.writer, StringIO(), bad_attr = 0) |
| |
| def _test_attrs(self, obj): |
| self.assertEqual(obj.dialect.delimiter, ',') |
| obj.dialect.delimiter = '\t' |
| self.assertEqual(obj.dialect.delimiter, '\t') |
| self.assertRaises(TypeError, delattr, obj.dialect, 'delimiter') |
| self.assertRaises(TypeError, setattr, obj.dialect, |
| 'lineterminator', None) |
| obj.dialect.escapechar = None |
| self.assertEqual(obj.dialect.escapechar, None) |
| self.assertRaises(TypeError, delattr, obj.dialect, 'quoting') |
| self.assertRaises(TypeError, setattr, obj.dialect, 'quoting', None) |
| obj.dialect.quoting = csv.QUOTE_MINIMAL |
| self.assertEqual(obj.dialect.quoting, csv.QUOTE_MINIMAL) |
| |
| def test_reader_attrs(self): |
| self._test_attrs(csv.reader([])) |
| |
| def test_writer_attrs(self): |
| self._test_attrs(csv.writer(StringIO())) |
| |
| def _write_test(self, fields, expect, **kwargs): |
| fileobj = StringIO() |
| writer = csv.writer(fileobj, **kwargs) |
| writer.writerow(fields) |
| self.assertEqual(fileobj.getvalue(), |
| expect + writer.dialect.lineterminator) |
| |
| def test_write_arg_valid(self): |
| self.assertRaises(csv.Error, self._write_test, None, '') |
| self._write_test((), '') |
| self._write_test([None], '""') |
| self.assertRaises(csv.Error, self._write_test, |
| [None], None, quoting = csv.QUOTE_NONE) |
| # Check that exceptions are passed up the chain |
| class BadList: |
| def __len__(self): |
| return 10; |
| def __getitem__(self, i): |
| if i > 2: |
| raise IOError |
| self.assertRaises(IOError, self._write_test, BadList(), '') |
| class BadItem: |
| def __str__(self): |
| raise IOError |
| self.assertRaises(IOError, self._write_test, [BadItem()], '') |
| |
| def test_write_bigfield(self): |
| # This exercises the buffer realloc functionality |
| bigstring = 'X' * 50000 |
| self._write_test([bigstring,bigstring], '%s,%s' % \ |
| (bigstring, bigstring)) |
| |
| def test_write_quoting(self): |
| self._write_test(['a','1','p,q'], 'a,1,"p,q"') |
| self.assertRaises(csv.Error, |
| self._write_test, |
| ['a','1','p,q'], 'a,1,"p,q"', |
| quoting = csv.QUOTE_NONE) |
| self._write_test(['a','1','p,q'], 'a,1,"p,q"', |
| quoting = csv.QUOTE_MINIMAL) |
| self._write_test(['a','1','p,q'], '"a",1,"p,q"', |
| quoting = csv.QUOTE_NONNUMERIC) |
| self._write_test(['a','1','p,q'], '"a","1","p,q"', |
| quoting = csv.QUOTE_ALL) |
| |
| def test_write_escape(self): |
| self._write_test(['a','1','p,q'], 'a,1,"p,q"', |
| escapechar='\\') |
| # FAILED - needs to be fixed [am]: |
| # self._write_test(['a','1','p,"q"'], 'a,1,"p,\\"q\\"', |
| # escapechar='\\', doublequote = 0) |
| self._write_test(['a','1','p,q'], 'a,1,p\\,q', |
| escapechar='\\', quoting = csv.QUOTE_NONE) |
| |
| def test_writerows(self): |
| class BrokenFile: |
| def write(self, buf): |
| raise IOError |
| writer = csv.writer(BrokenFile()) |
| self.assertRaises(IOError, writer.writerows, [['a']]) |
| fileobj = StringIO() |
| writer = csv.writer(fileobj) |
| self.assertRaises(TypeError, writer.writerows, None) |
| writer.writerows([['a','b'],['c','d']]) |
| self.assertEqual(fileobj.getvalue(), "a,b\r\nc,d\r\n") |
| |
| def _read_test(self, input, expect, **kwargs): |
| reader = csv.reader(input, **kwargs) |
| result = list(reader) |
| self.assertEqual(result, expect) |
| |
| def test_read_oddinputs(self): |
| self._read_test([], []) |
| self._read_test([''], [[]]) |
| self.assertRaises(csv.Error, self._read_test, |
| ['"ab"c'], None, strict = 1) |
| # cannot handle null bytes for the moment |
| self.assertRaises(csv.Error, self._read_test, |
| ['ab\0c'], None, strict = 1) |
| self._read_test(['"ab"c'], [['abc']], doublequote = 0) |
| |
| def test_read_eol(self): |
| self._read_test(['a,b'], [['a','b']]) |
| self._read_test(['a,b\n'], [['a','b']]) |
| self._read_test(['a,b\r\n'], [['a','b']]) |
| self._read_test(['a,b\r'], [['a','b']]) |
| self.assertRaises(csv.Error, self._read_test, ['a,b\rc,d'], []) |
| self.assertRaises(csv.Error, self._read_test, ['a,b\nc,d'], []) |
| self.assertRaises(csv.Error, self._read_test, ['a,b\r\nc,d'], []) |
| |
| def test_read_escape(self): |
| self._read_test(['a,\\b,c'], [['a', '\\b', 'c']], escapechar='\\') |
| self._read_test(['a,b\\,c'], [['a', 'b,c']], escapechar='\\') |
| self._read_test(['a,"b\\,c"'], [['a', 'b,c']], escapechar='\\') |
| self._read_test(['a,"b,\\c"'], [['a', 'b,\\c']], escapechar='\\') |
| self._read_test(['a,"b,c\\""'], [['a', 'b,c"']], escapechar='\\') |
| self._read_test(['a,"b,c"\\'], [['a', 'b,c\\']], escapechar='\\') |
| |
| def test_read_bigfield(self): |
| # This exercises the buffer realloc functionality |
| bigstring = 'X' * 50000 |
| bigline = '%s,%s' % (bigstring, bigstring) |
| self._read_test([bigline], [[bigstring, bigstring]]) |
| |
| class TestDialectRegistry(unittest.TestCase): |
| def test_registry_badargs(self): |
| self.assertRaises(TypeError, csv.list_dialects, None) |
| self.assertRaises(TypeError, csv.get_dialect) |
| self.assertRaises(csv.Error, csv.get_dialect, None) |
| self.assertRaises(csv.Error, csv.get_dialect, "nonesuch") |
| self.assertRaises(TypeError, csv.unregister_dialect) |
| self.assertRaises(csv.Error, csv.unregister_dialect, None) |
| self.assertRaises(csv.Error, csv.unregister_dialect, "nonesuch") |
| self.assertRaises(TypeError, csv.register_dialect, None) |
| self.assertRaises(TypeError, csv.register_dialect, None, None) |
| self.assertRaises(TypeError, csv.register_dialect, "nonesuch", None) |
| class bogus: |
| def __init__(self): |
| raise KeyError |
| self.assertRaises(KeyError, csv.register_dialect, "nonesuch", bogus) |
| |
| def test_registry(self): |
| class myexceltsv(csv.excel): |
| delimiter = "\t" |
| name = "myexceltsv" |
| expected_dialects = csv.list_dialects() + [name] |
| expected_dialects.sort() |
| csv.register_dialect(name, myexceltsv) |
| try: |
| self.failUnless(isinstance(csv.get_dialect(name), myexceltsv)) |
| got_dialects = csv.list_dialects() |
| got_dialects.sort() |
| self.assertEqual(expected_dialects, got_dialects) |
| finally: |
| csv.unregister_dialect(name) |
| |
| def test_incomplete_dialect(self): |
| class myexceltsv(csv.Dialect): |
| delimiter = "\t" |
| self.assertRaises(csv.Error, myexceltsv) |
| |
| def test_space_dialect(self): |
| class space(csv.excel): |
| delimiter = " " |
| quoting = csv.QUOTE_NONE |
| escapechar = "\\" |
| |
| s = StringIO("abc def\nc1ccccc1 benzene\n") |
| rdr = csv.reader(s, dialect=space()) |
| self.assertEqual(rdr.next(), ["abc", "def"]) |
| self.assertEqual(rdr.next(), ["c1ccccc1", "benzene"]) |
| |
| def test_dialect_apply(self): |
| class testA(csv.excel): |
| delimiter = "\t" |
| class testB(csv.excel): |
| delimiter = ":" |
| class testC(csv.excel): |
| delimiter = "|" |
| |
| csv.register_dialect('testC', testC) |
| try: |
| fileobj = StringIO() |
| writer = csv.writer(fileobj) |
| writer.writerow([1,2,3]) |
| self.assertEqual(fileobj.getvalue(), "1,2,3\r\n") |
| |
| fileobj = StringIO() |
| writer = csv.writer(fileobj, testA) |
| writer.writerow([1,2,3]) |
| self.assertEqual(fileobj.getvalue(), "1\t2\t3\r\n") |
| |
| fileobj = StringIO() |
| writer = csv.writer(fileobj, dialect=testB()) |
| writer.writerow([1,2,3]) |
| self.assertEqual(fileobj.getvalue(), "1:2:3\r\n") |
| |
| fileobj = StringIO() |
| writer = csv.writer(fileobj, dialect='testC') |
| writer.writerow([1,2,3]) |
| self.assertEqual(fileobj.getvalue(), "1|2|3\r\n") |
| |
| fileobj = StringIO() |
| writer = csv.writer(fileobj, dialect=testA, delimiter=';') |
| writer.writerow([1,2,3]) |
| self.assertEqual(fileobj.getvalue(), "1;2;3\r\n") |
| finally: |
| csv.unregister_dialect('testC') |
| |
| def test_bad_dialect(self): |
| # Unknown parameter |
| self.assertRaises(AttributeError, csv.reader, [], bad_attr = 0) |
| # Bad values |
| self.assertRaises(TypeError, csv.reader, [], delimiter = None) |
| self.assertRaises(TypeError, csv.reader, [], quoting = -1) |
| self.assertRaises(TypeError, csv.reader, [], quoting = 100) |
| |
| class TestCsvBase(unittest.TestCase): |
| def readerAssertEqual(self, input, expected_result): |
| reader = csv.reader(StringIO(input), dialect = self.dialect) |
| fields = list(reader) |
| self.assertEqual(fields, expected_result) |
| |
| def writerAssertEqual(self, input, expected_result): |
| fileobj = StringIO() |
| writer = csv.writer(fileobj, dialect = self.dialect) |
| writer.writerows(input) |
| self.assertEqual(fileobj.getvalue(), expected_result) |
| |
| class TestDialectExcel(TestCsvBase): |
| dialect = 'excel' |
| |
| def test_single(self): |
| self.readerAssertEqual('abc', [['abc']]) |
| |
| def test_simple(self): |
| self.readerAssertEqual('1,2,3,4,5', [['1','2','3','4','5']]) |
| |
| def test_blankline(self): |
| self.readerAssertEqual('', []) |
| |
| def test_empty_fields(self): |
| self.readerAssertEqual(',', [['', '']]) |
| |
| def test_singlequoted(self): |
| self.readerAssertEqual('""', [['']]) |
| |
| def test_singlequoted_left_empty(self): |
| self.readerAssertEqual('"",', [['','']]) |
| |
| def test_singlequoted_right_empty(self): |
| self.readerAssertEqual(',""', [['','']]) |
| |
| def test_single_quoted_quote(self): |
| self.readerAssertEqual('""""', [['"']]) |
| |
| def test_quoted_quotes(self): |
| self.readerAssertEqual('""""""', [['""']]) |
| |
| def test_inline_quote(self): |
| self.readerAssertEqual('a""b', [['a""b']]) |
| |
| def test_inline_quotes(self): |
| self.readerAssertEqual('a"b"c', [['a"b"c']]) |
| |
| def test_quotes_and_more(self): |
| self.readerAssertEqual('"a"b', [['ab']]) |
| |
| def test_lone_quote(self): |
| self.readerAssertEqual('a"b', [['a"b']]) |
| |
| def test_quote_and_quote(self): |
| self.readerAssertEqual('"a" "b"', [['a "b"']]) |
| |
| def test_space_and_quote(self): |
| self.readerAssertEqual(' "a"', [[' "a"']]) |
| |
| def test_quoted(self): |
| self.readerAssertEqual('1,2,3,"I think, therefore I am",5,6', |
| [['1', '2', '3', |
| 'I think, therefore I am', |
| '5', '6']]) |
| |
| def test_quoted_quote(self): |
| self.readerAssertEqual('1,2,3,"""I see,"" said the blind man","as he picked up his hammer and saw"', |
| [['1', '2', '3', |
| '"I see," said the blind man', |
| 'as he picked up his hammer and saw']]) |
| |
| def test_quoted_nl(self): |
| input = '''\ |
| 1,2,3,"""I see,"" |
| said the blind man","as he picked up his |
| hammer and saw" |
| 9,8,7,6''' |
| self.readerAssertEqual(input, |
| [['1', '2', '3', |
| '"I see,"\nsaid the blind man', |
| 'as he picked up his\nhammer and saw'], |
| ['9','8','7','6']]) |
| |
| def test_dubious_quote(self): |
| self.readerAssertEqual('12,12,1",', [['12', '12', '1"', '']]) |
| |
| def test_null(self): |
| self.writerAssertEqual([], '') |
| |
| def test_single(self): |
| self.writerAssertEqual([['abc']], 'abc\r\n') |
| |
| def test_simple(self): |
| self.writerAssertEqual([[1, 2, 'abc', 3, 4]], '1,2,abc,3,4\r\n') |
| |
| def test_quotes(self): |
| self.writerAssertEqual([[1, 2, 'a"bc"', 3, 4]], '1,2,"a""bc""",3,4\r\n') |
| |
| def test_quote_fieldsep(self): |
| self.writerAssertEqual([['abc,def']], '"abc,def"\r\n') |
| |
| def test_newlines(self): |
| self.writerAssertEqual([[1, 2, 'a\nbc', 3, 4]], '1,2,"a\nbc",3,4\r\n') |
| |
| class EscapedExcel(csv.excel): |
| quoting = csv.QUOTE_NONE |
| escapechar = '\\' |
| |
| class TestEscapedExcel(TestCsvBase): |
| dialect = EscapedExcel() |
| |
| def test_escape_fieldsep(self): |
| self.writerAssertEqual([['abc,def']], 'abc\\,def\r\n') |
| |
| def test_read_escape_fieldsep(self): |
| self.readerAssertEqual('abc\\,def\r\n', [['abc,def']]) |
| |
| class QuotedEscapedExcel(csv.excel): |
| quoting = csv.QUOTE_NONNUMERIC |
| escapechar = '\\' |
| |
| class TestQuotedEscapedExcel(TestCsvBase): |
| dialect = QuotedEscapedExcel() |
| |
| def test_write_escape_fieldsep(self): |
| self.writerAssertEqual([['abc,def']], '"abc,def"\r\n') |
| |
| def test_read_escape_fieldsep(self): |
| self.readerAssertEqual('"abc\\,def"\r\n', [['abc,def']]) |
| |
| # Disabled, pending support in csv.utils module |
| class TestDictFields(unittest.TestCase): |
| ### "long" means the row is longer than the number of fieldnames |
| ### "short" means there are fewer elements in the row than fieldnames |
| def test_write_simple_dict(self): |
| fileobj = StringIO() |
| writer = csv.DictWriter(fileobj, fieldnames = ["f1", "f2", "f3"]) |
| writer.writerow({"f1": 10, "f3": "abc"}) |
| self.assertEqual(fileobj.getvalue(), "10,,abc\r\n") |
| |
| def test_write_no_fields(self): |
| fileobj = StringIO() |
| self.assertRaises(TypeError, csv.DictWriter, fileobj) |
| |
| def test_read_dict_fields(self): |
| reader = csv.DictReader(StringIO("1,2,abc\r\n"), |
| fieldnames=["f1", "f2", "f3"]) |
| self.assertEqual(reader.next(), {"f1": '1', "f2": '2', "f3": 'abc'}) |
| |
| def test_read_long(self): |
| reader = csv.DictReader(StringIO("1,2,abc,4,5,6\r\n"), |
| fieldnames=["f1", "f2"]) |
| self.assertEqual(reader.next(), {"f1": '1', "f2": '2', |
| None: ["abc", "4", "5", "6"]}) |
| |
| def test_read_long_with_rest(self): |
| reader = csv.DictReader(StringIO("1,2,abc,4,5,6\r\n"), |
| fieldnames=["f1", "f2"], restkey="_rest") |
| self.assertEqual(reader.next(), {"f1": '1', "f2": '2', |
| "_rest": ["abc", "4", "5", "6"]}) |
| |
| def test_read_short(self): |
| reader = csv.DictReader(["1,2,abc,4,5,6\r\n","1,2,abc\r\n"], |
| fieldnames="1 2 3 4 5 6".split(), |
| restval="DEFAULT") |
| self.assertEqual(reader.next(), {"1": '1', "2": '2', "3": 'abc', |
| "4": '4', "5": '5', "6": '6'}) |
| self.assertEqual(reader.next(), {"1": '1', "2": '2', "3": 'abc', |
| "4": 'DEFAULT', "5": 'DEFAULT', |
| "6": 'DEFAULT'}) |
| |
| def test_read_with_blanks(self): |
| reader = csv.DictReader(["1,2,abc,4,5,6\r\n","\r\n", |
| "1,2,abc,4,5,6\r\n"], |
| fieldnames="1 2 3 4 5 6".split()) |
| self.assertEqual(reader.next(), {"1": '1', "2": '2', "3": 'abc', |
| "4": '4', "5": '5', "6": '6'}) |
| self.assertEqual(reader.next(), {"1": '1', "2": '2', "3": 'abc', |
| "4": '4', "5": '5', "6": '6'}) |
| |
| class TestArrayWrites(unittest.TestCase): |
| def test_int_write(self): |
| import array |
| contents = [(20-i) for i in range(20)] |
| a = array.array('i', contents) |
| fileobj = StringIO() |
| writer = csv.writer(fileobj, dialect="excel") |
| writer.writerow(a) |
| expected = ",".join([str(i) for i in a])+"\r\n" |
| self.assertEqual(fileobj.getvalue(), expected) |
| |
| def test_double_write(self): |
| import array |
| contents = [(20-i)*0.1 for i in range(20)] |
| a = array.array('d', contents) |
| fileobj = StringIO() |
| writer = csv.writer(fileobj, dialect="excel") |
| writer.writerow(a) |
| expected = ",".join([str(i) for i in a])+"\r\n" |
| self.assertEqual(fileobj.getvalue(), expected) |
| |
| def test_float_write(self): |
| import array |
| contents = [(20-i)*0.1 for i in range(20)] |
| a = array.array('f', contents) |
| fileobj = StringIO() |
| writer = csv.writer(fileobj, dialect="excel") |
| writer.writerow(a) |
| expected = ",".join([str(i) for i in a])+"\r\n" |
| self.assertEqual(fileobj.getvalue(), expected) |
| |
| def test_char_write(self): |
| import array, string |
| a = array.array('c', string.letters) |
| fileobj = StringIO() |
| writer = csv.writer(fileobj, dialect="excel") |
| writer.writerow(a) |
| expected = ",".join(a)+"\r\n" |
| self.assertEqual(fileobj.getvalue(), expected) |
| |
| class TestDialectValidity(unittest.TestCase): |
| def test_quoting(self): |
| class mydialect(csv.Dialect): |
| delimiter = ";" |
| escapechar = '\\' |
| doublequote = False |
| skipinitialspace = True |
| lineterminator = '\r\n' |
| quoting = csv.QUOTE_NONE |
| d = mydialect() |
| |
| mydialect.quoting = None |
| self.assertRaises(csv.Error, mydialect) |
| |
| mydialect.quoting = csv.QUOTE_NONE |
| mydialect.escapechar = None |
| self.assertRaises(csv.Error, mydialect) |
| |
| mydialect.doublequote = True |
| mydialect.quoting = csv.QUOTE_ALL |
| mydialect.quotechar = '"' |
| d = mydialect() |
| |
| mydialect.quotechar = "''" |
| self.assertRaises(csv.Error, mydialect) |
| |
| mydialect.quotechar = 4 |
| self.assertRaises(csv.Error, mydialect) |
| |
| def test_delimiter(self): |
| class mydialect(csv.Dialect): |
| delimiter = ";" |
| escapechar = '\\' |
| doublequote = False |
| skipinitialspace = True |
| lineterminator = '\r\n' |
| quoting = csv.QUOTE_NONE |
| d = mydialect() |
| |
| mydialect.delimiter = ":::" |
| self.assertRaises(csv.Error, mydialect) |
| |
| mydialect.delimiter = 4 |
| self.assertRaises(csv.Error, mydialect) |
| |
| def test_lineterminator(self): |
| class mydialect(csv.Dialect): |
| delimiter = ";" |
| escapechar = '\\' |
| doublequote = False |
| skipinitialspace = True |
| lineterminator = '\r\n' |
| quoting = csv.QUOTE_NONE |
| d = mydialect() |
| |
| mydialect.lineterminator = ":::" |
| d = mydialect() |
| |
| mydialect.lineterminator = 4 |
| self.assertRaises(csv.Error, mydialect) |
| |
| |
| class TestSniffer(unittest.TestCase): |
| sample1 = """\ |
| Harry's, Arlington Heights, IL, 2/1/03, Kimi Hayes |
| Shark City, Glendale Heights, IL, 12/28/02, Prezence |
| Tommy's Place, Blue Island, IL, 12/28/02, Blue Sunday/White Crow |
| Stonecutters Seafood and Chop House, Lemont, IL, 12/19/02, Week Back |
| """ |
| sample2 = """\ |
| 'Harry''s':'Arlington Heights':'IL':'2/1/03':'Kimi Hayes' |
| 'Shark City':'Glendale Heights':'IL':'12/28/02':'Prezence' |
| 'Tommy''s Place':'Blue Island':'IL':'12/28/02':'Blue Sunday/White Crow' |
| 'Stonecutters Seafood and Chop House':'Lemont':'IL':'12/19/02':'Week Back' |
| """ |
| |
| header = '''\ |
| "venue","city","state","date","performers" |
| ''' |
| def test_has_header(self): |
| sniffer = csv.Sniffer() |
| self.assertEqual(sniffer.has_header(self.sample1), False) |
| self.assertEqual(sniffer.has_header(self.header+self.sample1), True) |
| |
| def test_sniff(self): |
| sniffer = csv.Sniffer() |
| dialect = sniffer.sniff(self.sample1) |
| self.assertEqual(dialect.delimiter, ",") |
| self.assertEqual(dialect.quotechar, '"') |
| self.assertEqual(dialect.skipinitialspace, True) |
| |
| dialect = sniffer.sniff(self.sample2) |
| self.assertEqual(dialect.delimiter, ":") |
| self.assertEqual(dialect.quotechar, "'") |
| self.assertEqual(dialect.skipinitialspace, False) |
| |
| if not hasattr(sys, "gettotalrefcount"): |
| if test_support.verbose: print "*** skipping leakage tests ***" |
| else: |
| class NUL: |
| def write(s, *args): |
| pass |
| writelines = write |
| |
| class TestLeaks(unittest.TestCase): |
| def test_create_read(self): |
| delta = 0 |
| lastrc = sys.gettotalrefcount() |
| for i in xrange(20): |
| gc.collect() |
| self.assertEqual(gc.garbage, []) |
| rc = sys.gettotalrefcount() |
| csv.reader(["a,b,c\r\n"]) |
| csv.reader(["a,b,c\r\n"]) |
| csv.reader(["a,b,c\r\n"]) |
| delta = rc-lastrc |
| lastrc = rc |
| # if csv.reader() leaks, last delta should be 3 or more |
| self.assertEqual(delta < 3, True) |
| |
| def test_create_write(self): |
| delta = 0 |
| lastrc = sys.gettotalrefcount() |
| s = NUL() |
| for i in xrange(20): |
| gc.collect() |
| self.assertEqual(gc.garbage, []) |
| rc = sys.gettotalrefcount() |
| csv.writer(s) |
| csv.writer(s) |
| csv.writer(s) |
| delta = rc-lastrc |
| lastrc = rc |
| # if csv.writer() leaks, last delta should be 3 or more |
| self.assertEqual(delta < 3, True) |
| |
| def test_read(self): |
| delta = 0 |
| rows = ["a,b,c\r\n"]*5 |
| lastrc = sys.gettotalrefcount() |
| for i in xrange(20): |
| gc.collect() |
| self.assertEqual(gc.garbage, []) |
| rc = sys.gettotalrefcount() |
| rdr = csv.reader(rows) |
| for row in rdr: |
| pass |
| delta = rc-lastrc |
| lastrc = rc |
| # if reader leaks during read, delta should be 5 or more |
| self.assertEqual(delta < 5, True) |
| |
| def test_write(self): |
| delta = 0 |
| rows = [[1,2,3]]*5 |
| s = NUL() |
| lastrc = sys.gettotalrefcount() |
| for i in xrange(20): |
| gc.collect() |
| self.assertEqual(gc.garbage, []) |
| rc = sys.gettotalrefcount() |
| writer = csv.writer(s) |
| for row in rows: |
| writer.writerow(row) |
| delta = rc-lastrc |
| lastrc = rc |
| # if writer leaks during write, last delta should be 5 or more |
| self.assertEqual(delta < 5, True) |
| |
| # commented out for now - csv module doesn't yet support Unicode |
| if 0: |
| from StringIO import StringIO |
| import csv |
| |
| class TestUnicode(unittest.TestCase): |
| def test_unicode_read(self): |
| import codecs |
| f = codecs.EncodedFile(StringIO("Martin von Löwis," |
| "Marc André Lemburg," |
| "Guido van Rossum," |
| "François Pinard\r\n"), |
| data_encoding='iso-8859-1') |
| reader = csv.reader(f) |
| self.assertEqual(list(reader), [[u"Martin von Löwis", |
| u"Marc André Lemburg", |
| u"Guido van Rossum", |
| u"François Pinardn"]]) |
| |
| def test_main(): |
| mod = sys.modules[__name__] |
| test_support.run_unittest( |
| *[getattr(mod, name) for name in dir(mod) if name.startswith('Test')] |
| ) |
| |
| if __name__ == '__main__': |
| test_main() |