Move test_tokenize to doctest.
Done as GHOP 238 by Josip Dzolonga.
diff --git a/Lib/test/test_tokenize.py b/Lib/test/test_tokenize.py
index be6c18d..d6cfb65 100644
--- a/Lib/test/test_tokenize.py
+++ b/Lib/test/test_tokenize.py
@@ -1,112 +1,502 @@
-"""Tests for the tokenize module.
+doctests = """
+Tests for the tokenize module.
-The tests were originally written in the old Python style, where the
-test output was compared to a golden file. This docstring represents
-the first steps towards rewriting the entire test as a doctest.
+ >>> import glob, random, sys
-The tests can be really simple. Given a small fragment of source
-code, print out a table with the tokens. The ENDMARK is omitted for
+The tests can be really simple. Given a small fragment of source
+code, print out a table with thokens. The ENDMARK is omitted for
brevity.
->>> dump_tokens("1 + 1")
-NUMBER '1' (1, 0) (1, 1)
-OP '+' (1, 2) (1, 3)
-NUMBER '1' (1, 4) (1, 5)
+ >>> dump_tokens("1 + 1")
+ NUMBER '1' (1, 0) (1, 1)
+ OP '+' (1, 2) (1, 3)
+ NUMBER '1' (1, 4) (1, 5)
-A comment generates a token here, unlike in the parser module. The
-comment token is followed by an NL or a NEWLINE token, depending on
-whether the line contains the completion of a statement.
+ >>> dump_tokens("if False:\\n"
+ ... " # NL\\n"
+ ... " True = False # NEWLINE\\n")
+ NAME 'if' (1, 0) (1, 2)
+ NAME 'False' (1, 3) (1, 8)
+ OP ':' (1, 8) (1, 9)
+ NEWLINE '\\n' (1, 9) (1, 10)
+ COMMENT '# NL' (2, 4) (2, 8)
+ NL '\\n' (2, 8) (2, 9)
+ INDENT ' ' (3, 0) (3, 4)
+ NAME 'True' (3, 4) (3, 8)
+ OP '=' (3, 9) (3, 10)
+ NAME 'False' (3, 11) (3, 16)
+ COMMENT '# NEWLINE' (3, 17) (3, 26)
+ NEWLINE '\\n' (3, 26) (3, 27)
+ DEDENT '' (4, 0) (4, 0)
->>> dump_tokens("if False:\\n"
-... " # NL\\n"
-... " True = False # NEWLINE\\n")
-NAME 'if' (1, 0) (1, 2)
-NAME 'False' (1, 3) (1, 8)
-OP ':' (1, 8) (1, 9)
-NEWLINE '\\n' (1, 9) (1, 10)
-COMMENT '# NL' (2, 4) (2, 8)
-NL '\\n' (2, 8) (2, 9)
-INDENT ' ' (3, 0) (3, 4)
-NAME 'True' (3, 4) (3, 8)
-OP '=' (3, 9) (3, 10)
-NAME 'False' (3, 11) (3, 16)
-COMMENT '# NEWLINE' (3, 17) (3, 26)
-NEWLINE '\\n' (3, 26) (3, 27)
-DEDENT '' (4, 0) (4, 0)
+ >>> indent_error_file = \"""
+ ... def k(x):
+ ... x += 2
+ ... x += 5
+ ... \"""
+ >>> for tok in generate_tokens(StringIO(indent_error_file).readline): pass
+ Traceback (most recent call last):
+ ...
+ IndentationError: unindent does not match any outer indentation level
-There will be a bunch more tests of specific source patterns.
+Test roundtrip for `untokenize`. `f` is an open file or a string. The source
+code in f is tokenized, converted back to source code via tokenize.untokenize(),
+and tokenized again from the latter. The test fails if the second tokenization
+doesn't match the first.
-The tokenize module also defines an untokenize function that should
-regenerate the original program text from the tokens.
+ >>> def roundtrip(f):
+ ... if isinstance(f, str): f = StringIO(f)
+ ... token_list = list(generate_tokens(f.readline))
+ ... f.close()
+ ... tokens1 = [tok[:2] for tok in token_list]
+ ... new_text = untokenize(tokens1)
+ ... readline = iter(new_text.splitlines(1)).next
+ ... tokens2 = [tok[:2] for tok in generate_tokens(readline)]
+ ... return tokens1 == tokens2
+ ...
-There are some standard formatting practices that are easy to get right.
+There are some standard formattig practises that are easy to get right.
->>> roundtrip("if x == 1:\\n"
-... " print x\\n")
-if x == 1:
- print x
+ >>> roundtrip("if x == 1:\\n"
+ ... " print x\\n")
+ True
+
+ >>> roundtrip("# This is a comment\\n# This also")
+ True
Some people use different formatting conventions, which makes
-untokenize a little trickier. Note that this test involves trailing
-whitespace after the colon. Note that we use hex escapes to make the
-two trailing blanks apparent in the expected output.
+untokenize a little trickier. Note that this test involves trailing
+whitespace after the colon. Note that we use hex escapes to make the
+two trailing blanks apperant in the expected output.
->>> roundtrip("if x == 1 : \\n"
-... " print x\\n")
-if x == 1 :\x20\x20
- print x
+ >>> roundtrip("if x == 1 : \\n"
+ ... " print x\\n")
+ True
-Comments need to go in the right place.
+ >>> f = test_support.findfile("tokenize_tests" + os.extsep + "txt")
+ >>> roundtrip(open(f))
+ True
->>> roundtrip("if x == 1:\\n"
-... " # A comment by itself.\\n"
-... " print x # Comment here, too.\\n"
-... " # Another comment.\\n"
-... "after_if = True\\n")
-if x == 1:
- # A comment by itself.
- print x # Comment here, too.
- # Another comment.
-after_if = True
+ >>> roundtrip("if x == 1:\\n"
+ ... " # A comment by itself.\\n"
+ ... " print x # Comment here, too.\\n"
+ ... " # Another comment.\\n"
+ ... "after_if = True\\n")
+ True
->>> roundtrip("if (x # The comments need to go in the right place\\n"
-... " == 1):\\n"
-... " print 'x == 1'\\n")
-if (x # The comments need to go in the right place
- == 1):
- print 'x == 1'
+ >>> roundtrip("if (x # The comments need to go in the right place\\n"
+ ... " == 1):\\n"
+ ... " print 'x==1'\\n")
+ True
+ >>> roundtrip("class Test: # A comment here\\n"
+ ... " # A comment with weird indent\\n"
+ ... " after_com = 5\\n"
+ ... " def x(m): return m*5 # a one liner\\n"
+ ... " def y(m): # A whitespace after the colon\\n"
+ ... " return y*4 # 3-space indent\\n")
+ True
+
+Some error-handling code
+
+ >>> roundtrip("try: import somemodule\\n"
+ ... "except ImportError: # comment\\n"
+ ... " print 'Can not import' # comment2\\n"
+ ... "else: print 'Loaded'\\n")
+ True
+
+Balancing contunuation
+
+ >>> roundtrip("a = (3,4, \\n"
+ ... "5,6)\\n"
+ ... "y = [3, 4,\\n"
+ ... "5]\\n"
+ ... "z = {'a': 5,\\n"
+ ... "'b':15, 'c':True}\\n"
+ ... "x = len(y) + 5 - a[\\n"
+ ... "3] - a[2]\\n"
+ ... "+ len(z) - z[\\n"
+ ... "'b']\\n")
+ True
+
+Ordinary integers and binary operators
+
+ >>> dump_tokens("0xff <= 255")
+ NUMBER '0xff' (1, 0) (1, 4)
+ OP '<=' (1, 5) (1, 7)
+ NUMBER '255' (1, 8) (1, 11)
+ >>> dump_tokens("01234567 > ~0x15")
+ NUMBER '01234567' (1, 0) (1, 8)
+ OP '>' (1, 9) (1, 10)
+ OP '~' (1, 11) (1, 12)
+ NUMBER '0x15' (1, 12) (1, 16)
+ >>> dump_tokens("2134568 != 01231515")
+ NUMBER '2134568' (1, 0) (1, 7)
+ OP '!=' (1, 8) (1, 10)
+ NUMBER '01231515' (1, 11) (1, 19)
+ >>> dump_tokens("(-124561-1) & 0200000000")
+ OP '(' (1, 0) (1, 1)
+ OP '-' (1, 1) (1, 2)
+ NUMBER '124561' (1, 2) (1, 8)
+ OP '-' (1, 8) (1, 9)
+ NUMBER '1' (1, 9) (1, 10)
+ OP ')' (1, 10) (1, 11)
+ OP '&' (1, 12) (1, 13)
+ NUMBER '0200000000' (1, 14) (1, 24)
+ >>> dump_tokens("0xdeadbeef != -1")
+ NUMBER '0xdeadbeef' (1, 0) (1, 10)
+ OP '!=' (1, 11) (1, 13)
+ OP '-' (1, 14) (1, 15)
+ NUMBER '1' (1, 15) (1, 16)
+ >>> dump_tokens("0xdeadc0de & 012345")
+ NUMBER '0xdeadc0de' (1, 0) (1, 10)
+ OP '&' (1, 11) (1, 12)
+ NUMBER '012345' (1, 13) (1, 19)
+ >>> dump_tokens("0xFF & 0x15 | 1234")
+ NUMBER '0xFF' (1, 0) (1, 4)
+ OP '&' (1, 5) (1, 6)
+ NUMBER '0x15' (1, 7) (1, 11)
+ OP '|' (1, 12) (1, 13)
+ NUMBER '1234' (1, 14) (1, 18)
+
+Long integers
+
+ >>> dump_tokens("x = 0L")
+ NAME 'x' (1, 0) (1, 1)
+ OP '=' (1, 2) (1, 3)
+ NUMBER '0L' (1, 4) (1, 6)
+ >>> dump_tokens("x = 0xfffffffffff")
+ NAME 'x' (1, 0) (1, 1)
+ OP '=' (1, 2) (1, 3)
+ NUMBER '0xffffffffff (1, 4) (1, 17)
+ >>> dump_tokens("x = 123141242151251616110l")
+ NAME 'x' (1, 0) (1, 1)
+ OP '=' (1, 2) (1, 3)
+ NUMBER '123141242151 (1, 4) (1, 26)
+ >>> dump_tokens("x = -15921590215012591L")
+ NAME 'x' (1, 0) (1, 1)
+ OP '=' (1, 2) (1, 3)
+ OP '-' (1, 4) (1, 5)
+ NUMBER '159215902150 (1, 5) (1, 23)
+
+Floating point numbers
+
+ >>> dump_tokens("x = 3.14159")
+ NAME 'x' (1, 0) (1, 1)
+ OP '=' (1, 2) (1, 3)
+ NUMBER '3.14159' (1, 4) (1, 11)
+ >>> dump_tokens("x = 314159.")
+ NAME 'x' (1, 0) (1, 1)
+ OP '=' (1, 2) (1, 3)
+ NUMBER '314159.' (1, 4) (1, 11)
+ >>> dump_tokens("x = .314159")
+ NAME 'x' (1, 0) (1, 1)
+ OP '=' (1, 2) (1, 3)
+ NUMBER '.314159' (1, 4) (1, 11)
+ >>> dump_tokens("x = 3e14159")
+ NAME 'x' (1, 0) (1, 1)
+ OP '=' (1, 2) (1, 3)
+ NUMBER '3e14159' (1, 4) (1, 11)
+ >>> dump_tokens("x = 3E123")
+ NAME 'x' (1, 0) (1, 1)
+ OP '=' (1, 2) (1, 3)
+ NUMBER '3E123' (1, 4) (1, 9)
+ >>> dump_tokens("x+y = 3e-1230")
+ NAME 'x' (1, 0) (1, 1)
+ OP '+' (1, 1) (1, 2)
+ NAME 'y' (1, 2) (1, 3)
+ OP '=' (1, 4) (1, 5)
+ NUMBER '3e-1230' (1, 6) (1, 13)
+ >>> dump_tokens("x = 3.14e159")
+ NAME 'x' (1, 0) (1, 1)
+ OP '=' (1, 2) (1, 3)
+ NUMBER '3.14e159' (1, 4) (1, 12)
+
+String literals
+
+ >>> dump_tokens("x = ''; y = \\\"\\\"")
+ NAME 'x' (1, 0) (1, 1)
+ OP '=' (1, 2) (1, 3)
+ STRING "''" (1, 4) (1, 6)
+ OP ';' (1, 6) (1, 7)
+ NAME 'y' (1, 8) (1, 9)
+ OP '=' (1, 10) (1, 11)
+ STRING '""' (1, 12) (1, 14)
+ >>> dump_tokens("x = '\\\"'; y = \\\"'\\\"")
+ NAME 'x' (1, 0) (1, 1)
+ OP '=' (1, 2) (1, 3)
+ STRING '\\'"\\'' (1, 4) (1, 7)
+ OP ';' (1, 7) (1, 8)
+ NAME 'y' (1, 9) (1, 10)
+ OP '=' (1, 11) (1, 12)
+ STRING '"\\'"' (1, 13) (1, 16)
+ >>> dump_tokens("x = \\\"doesn't \\\"shrink\\\", does it\\\"")
+ NAME 'x' (1, 0) (1, 1)
+ OP '=' (1, 2) (1, 3)
+ STRING '"doesn\\'t "' (1, 4) (1, 14)
+ NAME 'shrink' (1, 14) (1, 20)
+ STRING '", does it"' (1, 20) (1, 31)
+ >>> dump_tokens("x = u'abc' + U'ABC'")
+ NAME 'x' (1, 0) (1, 1)
+ OP '=' (1, 2) (1, 3)
+ STRING "u'abc'" (1, 4) (1, 10)
+ OP '+' (1, 11) (1, 12)
+ STRING "U'ABC'" (1, 13) (1, 19)
+ >>> dump_tokens('y = u"ABC" + U"ABC"')
+ NAME 'y' (1, 0) (1, 1)
+ OP '=' (1, 2) (1, 3)
+ STRING 'u"ABC"' (1, 4) (1, 10)
+ OP '+' (1, 11) (1, 12)
+ STRING 'U"ABC"' (1, 13) (1, 19)
+ >>> dump_tokens("x = ur'abc' + Ur'ABC' + uR'ABC' + UR'ABC'")
+ NAME 'x' (1, 0) (1, 1)
+ OP '=' (1, 2) (1, 3)
+ STRING "ur'abc'" (1, 4) (1, 11)
+ OP '+' (1, 12) (1, 13)
+ STRING "Ur'ABC'" (1, 14) (1, 21)
+ OP '+' (1, 22) (1, 23)
+ STRING "uR'ABC'" (1, 24) (1, 31)
+ OP '+' (1, 32) (1, 33)
+ STRING "UR'ABC'" (1, 34) (1, 41)
+ >>> dump_tokens('y = ur"abc" + Ur"ABC" + uR"ABC" + UR"ABC"')
+ NAME 'y' (1, 0) (1, 1)
+ OP '=' (1, 2) (1, 3)
+ STRING 'ur"abc"' (1, 4) (1, 11)
+ OP '+' (1, 12) (1, 13)
+ STRING 'Ur"ABC"' (1, 14) (1, 21)
+ OP '+' (1, 22) (1, 23)
+ STRING 'uR"ABC"' (1, 24) (1, 31)
+ OP '+' (1, 32) (1, 33)
+ STRING 'UR"ABC"' (1, 34) (1, 41)
+
+Operators
+
+ >>> dump_tokens("def d22(a, b, c=2, d=2, *k): pass")
+ NAME 'def' (1, 0) (1, 3)
+ NAME 'd22' (1, 4) (1, 7)
+ OP '(' (1, 7) (1, 8)
+ NAME 'a' (1, 8) (1, 9)
+ OP ',' (1, 9) (1, 10)
+ NAME 'b' (1, 11) (1, 12)
+ OP ',' (1, 12) (1, 13)
+ NAME 'c' (1, 14) (1, 15)
+ OP '=' (1, 15) (1, 16)
+ NUMBER '2' (1, 16) (1, 17)
+ OP ',' (1, 17) (1, 18)
+ NAME 'd' (1, 19) (1, 20)
+ OP '=' (1, 20) (1, 21)
+ NUMBER '2' (1, 21) (1, 22)
+ OP ',' (1, 22) (1, 23)
+ OP '*' (1, 24) (1, 25)
+ NAME 'k' (1, 25) (1, 26)
+ OP ')' (1, 26) (1, 27)
+ OP ':' (1, 27) (1, 28)
+ NAME 'pass' (1, 29) (1, 33)
+ >>> dump_tokens("def d01v_(a=1, *k, **w): pass")
+ NAME 'def' (1, 0) (1, 3)
+ NAME 'd01v_' (1, 4) (1, 9)
+ OP '(' (1, 9) (1, 10)
+ NAME 'a' (1, 10) (1, 11)
+ OP '=' (1, 11) (1, 12)
+ NUMBER '1' (1, 12) (1, 13)
+ OP ',' (1, 13) (1, 14)
+ OP '*' (1, 15) (1, 16)
+ NAME 'k' (1, 16) (1, 17)
+ OP ',' (1, 17) (1, 18)
+ OP '**' (1, 19) (1, 21)
+ NAME 'w' (1, 21) (1, 22)
+ OP ')' (1, 22) (1, 23)
+ OP ':' (1, 23) (1, 24)
+ NAME 'pass' (1, 25) (1, 29)
+
+Comparison
+
+ >>> dump_tokens("if 1 < 1 > 1 == 1 >= 5 <= 0x15 <= 0x12 != " +
+ ... "1 and 5 in 1 not in 1 is 1 or 5 is not 1: pass")
+ NAME 'if' (1, 0) (1, 2)
+ NUMBER '1' (1, 3) (1, 4)
+ OP '<' (1, 5) (1, 6)
+ NUMBER '1' (1, 7) (1, 8)
+ OP '>' (1, 9) (1, 10)
+ NUMBER '1' (1, 11) (1, 12)
+ OP '==' (1, 13) (1, 15)
+ NUMBER '1' (1, 16) (1, 17)
+ OP '>=' (1, 18) (1, 20)
+ NUMBER '5' (1, 21) (1, 22)
+ OP '<=' (1, 23) (1, 25)
+ NUMBER '0x15' (1, 26) (1, 30)
+ OP '<=' (1, 31) (1, 33)
+ NUMBER '0x12' (1, 34) (1, 38)
+ OP '!=' (1, 39) (1, 41)
+ NUMBER '1' (1, 42) (1, 43)
+ NAME 'and' (1, 44) (1, 47)
+ NUMBER '5' (1, 48) (1, 49)
+ NAME 'in' (1, 50) (1, 52)
+ NUMBER '1' (1, 53) (1, 54)
+ NAME 'not' (1, 55) (1, 58)
+ NAME 'in' (1, 59) (1, 61)
+ NUMBER '1' (1, 62) (1, 63)
+ NAME 'is' (1, 64) (1, 66)
+ NUMBER '1' (1, 67) (1, 68)
+ NAME 'or' (1, 69) (1, 71)
+ NUMBER '5' (1, 72) (1, 73)
+ NAME 'is' (1, 74) (1, 76)
+ NAME 'not' (1, 77) (1, 80)
+ NUMBER '1' (1, 81) (1, 82)
+ OP ':' (1, 82) (1, 83)
+ NAME 'pass' (1, 84) (1, 88)
+
+Shift
+
+ >>> dump_tokens("x = 1 << 1 >> 5")
+ NAME 'x' (1, 0) (1, 1)
+ OP '=' (1, 2) (1, 3)
+ NUMBER '1' (1, 4) (1, 5)
+ OP '<<' (1, 6) (1, 8)
+ NUMBER '1' (1, 9) (1, 10)
+ OP '>>' (1, 11) (1, 13)
+ NUMBER '5' (1, 14) (1, 15)
+
+Additive
+
+ >>> dump_tokens("x = 1 - y + 15 - 01 + 0x124 + z + a[5]")
+ NAME 'x' (1, 0) (1, 1)
+ OP '=' (1, 2) (1, 3)
+ NUMBER '1' (1, 4) (1, 5)
+ OP '-' (1, 6) (1, 7)
+ NAME 'y' (1, 8) (1, 9)
+ OP '+' (1, 10) (1, 11)
+ NUMBER '15' (1, 12) (1, 14)
+ OP '-' (1, 15) (1, 16)
+ NUMBER '01' (1, 17) (1, 19)
+ OP '+' (1, 20) (1, 21)
+ NUMBER '0x124' (1, 22) (1, 27)
+ OP '+' (1, 28) (1, 29)
+ NAME 'z' (1, 30) (1, 31)
+ OP '+' (1, 32) (1, 33)
+ NAME 'a' (1, 34) (1, 35)
+ OP '[' (1, 35) (1, 36)
+ NUMBER '5' (1, 36) (1, 37)
+ OP ']' (1, 37) (1, 38)
+
+Multiplicative
+
+ >>> dump_tokens("x = 1//1*1/5*12%0x12")
+ NAME 'x' (1, 0) (1, 1)
+ OP '=' (1, 2) (1, 3)
+ NUMBER '1' (1, 4) (1, 5)
+ OP '//' (1, 5) (1, 7)
+ NUMBER '1' (1, 7) (1, 8)
+ OP '*' (1, 8) (1, 9)
+ NUMBER '1' (1, 9) (1, 10)
+ OP '/' (1, 10) (1, 11)
+ NUMBER '5' (1, 11) (1, 12)
+ OP '*' (1, 12) (1, 13)
+ NUMBER '12' (1, 13) (1, 15)
+ OP '%' (1, 15) (1, 16)
+ NUMBER '0x12' (1, 16) (1, 20)
+
+Unary
+
+ >>> dump_tokens("~1 ^ 1 & 1 |1 ^ -1")
+ OP '~' (1, 0) (1, 1)
+ NUMBER '1' (1, 1) (1, 2)
+ OP '^' (1, 3) (1, 4)
+ NUMBER '1' (1, 5) (1, 6)
+ OP '&' (1, 7) (1, 8)
+ NUMBER '1' (1, 9) (1, 10)
+ OP '|' (1, 11) (1, 12)
+ NUMBER '1' (1, 12) (1, 13)
+ OP '^' (1, 14) (1, 15)
+ OP '-' (1, 16) (1, 17)
+ NUMBER '1' (1, 17) (1, 18)
+ >>> dump_tokens("-1*1/1+1*1//1 - ---1**1")
+ OP '-' (1, 0) (1, 1)
+ NUMBER '1' (1, 1) (1, 2)
+ OP '*' (1, 2) (1, 3)
+ NUMBER '1' (1, 3) (1, 4)
+ OP '/' (1, 4) (1, 5)
+ NUMBER '1' (1, 5) (1, 6)
+ OP '+' (1, 6) (1, 7)
+ NUMBER '1' (1, 7) (1, 8)
+ OP '*' (1, 8) (1, 9)
+ NUMBER '1' (1, 9) (1, 10)
+ OP '//' (1, 10) (1, 12)
+ NUMBER '1' (1, 12) (1, 13)
+ OP '-' (1, 14) (1, 15)
+ OP '-' (1, 16) (1, 17)
+ OP '-' (1, 17) (1, 18)
+ OP '-' (1, 18) (1, 19)
+ NUMBER '1' (1, 19) (1, 20)
+ OP '**' (1, 20) (1, 22)
+ NUMBER '1' (1, 22) (1, 23)
+
+Selector
+
+ >>> dump_tokens("import sys, time\\nx = sys.modules['time'].time()")
+ NAME 'import' (1, 0) (1, 6)
+ NAME 'sys' (1, 7) (1, 10)
+ OP ',' (1, 10) (1, 11)
+ NAME 'time' (1, 12) (1, 16)
+ NEWLINE '\\n' (1, 16) (1, 17)
+ NAME 'x' (2, 0) (2, 1)
+ OP '=' (2, 2) (2, 3)
+ NAME 'sys' (2, 4) (2, 7)
+ OP '.' (2, 7) (2, 8)
+ NAME 'modules' (2, 8) (2, 15)
+ OP '[' (2, 15) (2, 16)
+ STRING "'time'" (2, 16) (2, 22)
+ OP ']' (2, 22) (2, 23)
+ OP '.' (2, 23) (2, 24)
+ NAME 'time' (2, 24) (2, 28)
+ OP '(' (2, 28) (2, 29)
+ OP ')' (2, 29) (2, 30)
+
+Methods
+
+ >>> dump_tokens("@staticmethod\\ndef foo(x,y): pass")
+ OP '@' (1, 0) (1, 1)
+ NAME 'staticmethod (1, 1) (1, 13)
+ NEWLINE '\\n' (1, 13) (1, 14)
+ NAME 'def' (2, 0) (2, 3)
+ NAME 'foo' (2, 4) (2, 7)
+ OP '(' (2, 7) (2, 8)
+ NAME 'x' (2, 8) (2, 9)
+ OP ',' (2, 9) (2, 10)
+ NAME 'y' (2, 10) (2, 11)
+ OP ')' (2, 11) (2, 12)
+ OP ':' (2, 12) (2, 13)
+ NAME 'pass' (2, 14) (2, 18)
+
+Backslash means line continuation, except for comments
+
+ >>> roundtrip("x=1+\\\\n"
+ ... "1\\n"
+ ... "# This is a comment\\\\n"
+ ... "# This also\\n")
+ True
+ >>> roundtrip("# Comment \\\\nx = 0")
+ True
+
+ >>>
+ >>> tempdir = os.path.dirname(f) or os.curdir
+ >>> testfiles = glob.glob(os.path.join(tempdir, "test*.py"))
+ >>> if not test_support.is_resource_enabled("compiler"):
+ ... testfiles = random.sample(testfiles, 10)
+ ...
+ >>> for testfile in testfiles:
+ ... if not roundtrip(open(testfile)): break
+ ... else: True
+ True
"""
-import os, glob, random, time, sys
-from cStringIO import StringIO
-from test.test_support import (verbose, findfile, is_resource_enabled,
- TestFailed)
-from tokenize import (tokenize, generate_tokens, untokenize, tok_name,
- ENDMARKER, NUMBER, NAME, OP, STRING, COMMENT)
-# How much time in seconds can pass before we print a 'Still working' message.
-_PRINT_WORKING_MSG_INTERVAL = 5 * 60
-
-# Test roundtrip for `untokenize`. `f` is a file path. The source code in f
-# is tokenized, converted back to source code via tokenize.untokenize(),
-# and tokenized again from the latter. The test fails if the second
-# tokenization doesn't match the first.
-def test_roundtrip(f):
- ## print 'Testing:', f
- fobj = open(f)
- try:
- fulltok = list(generate_tokens(fobj.readline))
- finally:
- fobj.close()
-
- t1 = [tok[:2] for tok in fulltok]
- newtext = untokenize(t1)
- readline = iter(newtext.splitlines(1)).next
- t2 = [tok[:2] for tok in generate_tokens(readline)]
- if t1 != t2:
- raise TestFailed("untokenize() roundtrip failed for %r" % f)
+from test import test_support
+from tokenize import (tokenize, untokenize, generate_tokens, NUMBER, NAME, OP,
+ STRING, ENDMARKER, tok_name)
+from StringIO import StringIO
+import os
def dump_tokens(s):
"""Print out the tokens in s in a table format.
@@ -118,12 +508,7 @@
if type == ENDMARKER:
break
type = tok_name[type]
- print "%(type)-10.10s %(token)-13.13r %(start)s %(end)s" % locals()
-
-def roundtrip(s):
- f = StringIO(s)
- source = untokenize(generate_tokens(f.readline))
- print source,
+ print("%(type)-10.10s %(token)-13.13r %(start)s %(end)s" % locals())
# This is an example from the docs, set up as a doctest.
def decistmt(s):
@@ -163,61 +548,13 @@
result.append((toknum, tokval))
return untokenize(result)
+
+__test__ = {"doctests" : doctests, 'decistmt': decistmt}
+
+
def test_main():
- if verbose:
- print 'starting...'
-
- next_time = time.time() + _PRINT_WORKING_MSG_INTERVAL
-
- # This displays the tokenization of tokenize_tests.py to stdout, and
- # regrtest.py checks that this equals the expected output (in the
- # test/output/ directory).
- f = open(findfile('tokenize_tests' + os.extsep + 'txt'))
- tokenize(f.readline)
- f.close()
-
- # Now run test_roundtrip() over tokenize_test.py too, and over all
- # (if the "compiler" resource is enabled) or a small random sample (if
- # "compiler" is not enabled) of the test*.py files.
- f = findfile('tokenize_tests' + os.extsep + 'txt')
- test_roundtrip(f)
-
- testdir = os.path.dirname(f) or os.curdir
- testfiles = glob.glob(testdir + os.sep + 'test*.py')
- if not is_resource_enabled('compiler'):
- testfiles = random.sample(testfiles, 10)
-
- for f in testfiles:
- # Print still working message since this test can be really slow
- if next_time <= time.time():
- next_time = time.time() + _PRINT_WORKING_MSG_INTERVAL
- print >>sys.__stdout__, ' test_main still working, be patient...'
- sys.__stdout__.flush()
-
- test_roundtrip(f)
-
- # Test detecton of IndentationError.
- sampleBadText = """\
-def foo():
- bar
- baz
-"""
-
- try:
- for tok in generate_tokens(StringIO(sampleBadText).readline):
- pass
- except IndentationError:
- pass
- else:
- raise TestFailed("Did not detect IndentationError:")
-
- # Run the doctests in this module.
- from test import test_tokenize # i.e., this module
- from test.test_support import run_doctest
- run_doctest(test_tokenize, verbose)
-
- if verbose:
- print 'finished'
+ from test import test_tokenize
+ test_support.run_doctest(test_tokenize, True)
if __name__ == "__main__":
test_main()