Issue #25317: Converted doctests in test_tokenize to unittests.
Made test_tokenize discoverable.
This commit is contained in:
Serhiy Storchaka
parent
15982aad2b
commit
5f6fa82617
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@ -1,22 +1,44 @@
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doctests = """
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Tests for the tokenize module.
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from test import support
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from tokenize import (tokenize, _tokenize, untokenize, NUMBER, NAME, OP,
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STRING, ENDMARKER, ENCODING, tok_name, detect_encoding,
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open as tokenize_open, Untokenizer)
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from io import BytesIO
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from unittest import TestCase, mock
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import os
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import token
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The tests can be really simple. Given a small fragment of source
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code, print out a table with tokens. The ENDMARKER is omitted for
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brevity.
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>>> import glob
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class TokenizeTest(TestCase):
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# Tests for the tokenize module.
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>>> dump_tokens("1 + 1")
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ENCODING 'utf-8' (0, 0) (0, 0)
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# The tests can be really simple. Given a small fragment of source
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# code, print out a table with tokens. The ENDMARKER is omitted for
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# brevity.
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def check_tokenize(self, s, expected):
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# Format the tokens in s in a table format.
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# The ENDMARKER is omitted.
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result = []
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f = BytesIO(s.encode('utf-8'))
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for type, token, start, end, line in tokenize(f.readline):
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if type == ENDMARKER:
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break
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type = tok_name[type]
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result.append(" %(type)-10.10s %(token)-13.13r %(start)s %(end)s" %
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locals())
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self.assertEqual(result,
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[" ENCODING 'utf-8' (0, 0) (0, 0)"] +
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expected.rstrip().splitlines())
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def test_basic(self):
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self.check_tokenize("1 + 1", """\
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NUMBER '1' (1, 0) (1, 1)
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OP '+' (1, 2) (1, 3)
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NUMBER '1' (1, 4) (1, 5)
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>>> dump_tokens("if False:\\n"
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... " # NL\\n"
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... " True = False # NEWLINE\\n")
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ENCODING 'utf-8' (0, 0) (0, 0)
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""")
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self.check_tokenize("if False:\n"
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" # NL\n"
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" True = False # NEWLINE\n", """\
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NAME 'if' (1, 0) (1, 2)
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NAME 'False' (1, 3) (1, 8)
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OP ':' (1, 8) (1, 9)
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@ -30,112 +52,48 @@ brevity.
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COMMENT '# NEWLINE' (3, 17) (3, 26)
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NEWLINE '\\n' (3, 26) (3, 27)
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DEDENT '' (4, 0) (4, 0)
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""")
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indent_error_file = b"""\
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def k(x):
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x += 2
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x += 5
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"""
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readline = BytesIO(indent_error_file).readline
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with self.assertRaisesRegex(IndentationError,
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"unindent does not match any "
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"outer indentation level"):
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for tok in tokenize(readline):
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pass
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>>> indent_error_file = \"""
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... def k(x):
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... x += 2
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... x += 5
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... \"""
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>>> readline = BytesIO(indent_error_file.encode('utf-8')).readline
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>>> for tok in tokenize(readline): pass
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Traceback (most recent call last):
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...
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IndentationError: unindent does not match any outer indentation level
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There are some standard formatting practices that are easy to get right.
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>>> roundtrip("if x == 1:\\n"
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... " print(x)\\n")
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True
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>>> roundtrip("# This is a comment\\n# This also")
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True
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Some people use different formatting conventions, which makes
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untokenize a little trickier. Note that this test involves trailing
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whitespace after the colon. Note that we use hex escapes to make the
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two trailing blanks apparent in the expected output.
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>>> roundtrip("if x == 1 : \\n"
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... " print(x)\\n")
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True
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>>> f = support.findfile("tokenize_tests.txt")
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>>> roundtrip(open(f, 'rb'))
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True
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>>> roundtrip("if x == 1:\\n"
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... " # A comment by itself.\\n"
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... " print(x) # Comment here, too.\\n"
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... " # Another comment.\\n"
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... "after_if = True\\n")
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True
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>>> roundtrip("if (x # The comments need to go in the right place\\n"
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... " == 1):\\n"
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... " print('x==1')\\n")
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True
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>>> roundtrip("class Test: # A comment here\\n"
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... " # A comment with weird indent\\n"
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... " after_com = 5\\n"
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... " def x(m): return m*5 # a one liner\\n"
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... " def y(m): # A whitespace after the colon\\n"
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... " return y*4 # 3-space indent\\n")
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True
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Some error-handling code
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>>> roundtrip("try: import somemodule\\n"
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... "except ImportError: # comment\\n"
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... " print('Can not import' # comment2\\n)"
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... "else: print('Loaded')\\n")
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True
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Balancing continuation
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>>> roundtrip("a = (3,4, \\n"
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... "5,6)\\n"
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... "y = [3, 4,\\n"
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... "5]\\n"
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... "z = {'a': 5,\\n"
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... "'b':15, 'c':True}\\n"
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... "x = len(y) + 5 - a[\\n"
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... "3] - a[2]\\n"
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... "+ len(z) - z[\\n"
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... "'b']\\n")
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True
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Ordinary integers and binary operators
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>>> dump_tokens("0xff <= 255")
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ENCODING 'utf-8' (0, 0) (0, 0)
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def test_int(self):
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# Ordinary integers and binary operators
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self.check_tokenize("0xff <= 255", """\
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NUMBER '0xff' (1, 0) (1, 4)
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OP '<=' (1, 5) (1, 7)
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NUMBER '255' (1, 8) (1, 11)
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>>> dump_tokens("0b10 <= 255")
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ENCODING 'utf-8' (0, 0) (0, 0)
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""")
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self.check_tokenize("0b10 <= 255", """\
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NUMBER '0b10' (1, 0) (1, 4)
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OP '<=' (1, 5) (1, 7)
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NUMBER '255' (1, 8) (1, 11)
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>>> dump_tokens("0o123 <= 0O123")
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ENCODING 'utf-8' (0, 0) (0, 0)
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""")
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self.check_tokenize("0o123 <= 0O123", """\
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NUMBER '0o123' (1, 0) (1, 5)
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OP '<=' (1, 6) (1, 8)
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NUMBER '0O123' (1, 9) (1, 14)
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>>> dump_tokens("1234567 > ~0x15")
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ENCODING 'utf-8' (0, 0) (0, 0)
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""")
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self.check_tokenize("1234567 > ~0x15", """\
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NUMBER '1234567' (1, 0) (1, 7)
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OP '>' (1, 8) (1, 9)
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OP '~' (1, 10) (1, 11)
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NUMBER '0x15' (1, 11) (1, 15)
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>>> dump_tokens("2134568 != 1231515")
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ENCODING 'utf-8' (0, 0) (0, 0)
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""")
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self.check_tokenize("2134568 != 1231515", """\
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NUMBER '2134568' (1, 0) (1, 7)
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OP '!=' (1, 8) (1, 10)
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NUMBER '1231515' (1, 11) (1, 18)
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>>> dump_tokens("(-124561-1) & 200000000")
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ENCODING 'utf-8' (0, 0) (0, 0)
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""")
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self.check_tokenize("(-124561-1) & 200000000", """\
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OP '(' (1, 0) (1, 1)
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OP '-' (1, 1) (1, 2)
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NUMBER '124561' (1, 2) (1, 8)
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@ -144,93 +102,93 @@ Ordinary integers and binary operators
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OP ')' (1, 10) (1, 11)
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OP '&' (1, 12) (1, 13)
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NUMBER '200000000' (1, 14) (1, 23)
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>>> dump_tokens("0xdeadbeef != -1")
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ENCODING 'utf-8' (0, 0) (0, 0)
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""")
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self.check_tokenize("0xdeadbeef != -1", """\
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NUMBER '0xdeadbeef' (1, 0) (1, 10)
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OP '!=' (1, 11) (1, 13)
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OP '-' (1, 14) (1, 15)
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NUMBER '1' (1, 15) (1, 16)
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>>> dump_tokens("0xdeadc0de & 12345")
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ENCODING 'utf-8' (0, 0) (0, 0)
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""")
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self.check_tokenize("0xdeadc0de & 12345", """\
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NUMBER '0xdeadc0de' (1, 0) (1, 10)
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OP '&' (1, 11) (1, 12)
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NUMBER '12345' (1, 13) (1, 18)
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>>> dump_tokens("0xFF & 0x15 | 1234")
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ENCODING 'utf-8' (0, 0) (0, 0)
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""")
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self.check_tokenize("0xFF & 0x15 | 1234", """\
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NUMBER '0xFF' (1, 0) (1, 4)
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OP '&' (1, 5) (1, 6)
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NUMBER '0x15' (1, 7) (1, 11)
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OP '|' (1, 12) (1, 13)
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NUMBER '1234' (1, 14) (1, 18)
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""")
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Long integers
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>>> dump_tokens("x = 0")
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ENCODING 'utf-8' (0, 0) (0, 0)
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def test_long(self):
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# Long integers
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self.check_tokenize("x = 0", """\
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NAME 'x' (1, 0) (1, 1)
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OP '=' (1, 2) (1, 3)
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NUMBER '0' (1, 4) (1, 5)
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>>> dump_tokens("x = 0xfffffffffff")
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ENCODING 'utf-8' (0, 0) (0, 0)
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""")
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self.check_tokenize("x = 0xfffffffffff", """\
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NAME 'x' (1, 0) (1, 1)
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OP '=' (1, 2) (1, 3)
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NUMBER '0xffffffffff (1, 4) (1, 17)
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>>> dump_tokens("x = 123141242151251616110")
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ENCODING 'utf-8' (0, 0) (0, 0)
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""")
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self.check_tokenize("x = 123141242151251616110", """\
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NAME 'x' (1, 0) (1, 1)
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OP '=' (1, 2) (1, 3)
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NUMBER '123141242151 (1, 4) (1, 25)
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>>> dump_tokens("x = -15921590215012591")
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ENCODING 'utf-8' (0, 0) (0, 0)
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""")
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self.check_tokenize("x = -15921590215012591", """\
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NAME 'x' (1, 0) (1, 1)
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OP '=' (1, 2) (1, 3)
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OP '-' (1, 4) (1, 5)
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NUMBER '159215902150 (1, 5) (1, 22)
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""")
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Floating point numbers
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>>> dump_tokens("x = 3.14159")
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ENCODING 'utf-8' (0, 0) (0, 0)
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def test_float(self):
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# Floating point numbers
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self.check_tokenize("x = 3.14159", """\
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NAME 'x' (1, 0) (1, 1)
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OP '=' (1, 2) (1, 3)
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NUMBER '3.14159' (1, 4) (1, 11)
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>>> dump_tokens("x = 314159.")
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ENCODING 'utf-8' (0, 0) (0, 0)
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""")
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self.check_tokenize("x = 314159.", """\
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NAME 'x' (1, 0) (1, 1)
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OP '=' (1, 2) (1, 3)
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NUMBER '314159.' (1, 4) (1, 11)
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>>> dump_tokens("x = .314159")
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ENCODING 'utf-8' (0, 0) (0, 0)
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""")
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self.check_tokenize("x = .314159", """\
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NAME 'x' (1, 0) (1, 1)
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OP '=' (1, 2) (1, 3)
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NUMBER '.314159' (1, 4) (1, 11)
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>>> dump_tokens("x = 3e14159")
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ENCODING 'utf-8' (0, 0) (0, 0)
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""")
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self.check_tokenize("x = 3e14159", """\
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NAME 'x' (1, 0) (1, 1)
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OP '=' (1, 2) (1, 3)
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NUMBER '3e14159' (1, 4) (1, 11)
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>>> dump_tokens("x = 3E123")
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ENCODING 'utf-8' (0, 0) (0, 0)
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""")
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self.check_tokenize("x = 3E123", """\
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NAME 'x' (1, 0) (1, 1)
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OP '=' (1, 2) (1, 3)
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NUMBER '3E123' (1, 4) (1, 9)
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>>> dump_tokens("x+y = 3e-1230")
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ENCODING 'utf-8' (0, 0) (0, 0)
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""")
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self.check_tokenize("x+y = 3e-1230", """\
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NAME 'x' (1, 0) (1, 1)
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OP '+' (1, 1) (1, 2)
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NAME 'y' (1, 2) (1, 3)
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OP '=' (1, 4) (1, 5)
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NUMBER '3e-1230' (1, 6) (1, 13)
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>>> dump_tokens("x = 3.14e159")
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ENCODING 'utf-8' (0, 0) (0, 0)
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""")
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self.check_tokenize("x = 3.14e159", """\
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NAME 'x' (1, 0) (1, 1)
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OP '=' (1, 2) (1, 3)
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NUMBER '3.14e159' (1, 4) (1, 12)
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""")
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String literals
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>>> dump_tokens("x = ''; y = \\\"\\\"")
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ENCODING 'utf-8' (0, 0) (0, 0)
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def test_string(self):
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# String literals
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self.check_tokenize("x = ''; y = \"\"", """\
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NAME 'x' (1, 0) (1, 1)
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OP '=' (1, 2) (1, 3)
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STRING "''" (1, 4) (1, 6)
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@ -238,8 +196,8 @@ String literals
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NAME 'y' (1, 8) (1, 9)
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OP '=' (1, 10) (1, 11)
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STRING '""' (1, 12) (1, 14)
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>>> dump_tokens("x = '\\\"'; y = \\\"'\\\"")
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ENCODING 'utf-8' (0, 0) (0, 0)
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""")
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self.check_tokenize("x = '\"'; y = \"'\"", """\
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NAME 'x' (1, 0) (1, 1)
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OP '=' (1, 2) (1, 3)
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STRING '\\'"\\'' (1, 4) (1, 7)
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@ -247,29 +205,29 @@ String literals
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NAME 'y' (1, 9) (1, 10)
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OP '=' (1, 11) (1, 12)
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STRING '"\\'"' (1, 13) (1, 16)
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>>> dump_tokens("x = \\\"doesn't \\\"shrink\\\", does it\\\"")
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ENCODING 'utf-8' (0, 0) (0, 0)
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""")
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self.check_tokenize("x = \"doesn't \"shrink\", does it\"", """\
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NAME 'x' (1, 0) (1, 1)
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OP '=' (1, 2) (1, 3)
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STRING '"doesn\\'t "' (1, 4) (1, 14)
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NAME 'shrink' (1, 14) (1, 20)
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STRING '", does it"' (1, 20) (1, 31)
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>>> dump_tokens("x = 'abc' + 'ABC'")
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ENCODING 'utf-8' (0, 0) (0, 0)
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""")
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self.check_tokenize("x = 'abc' + 'ABC'", """\
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NAME 'x' (1, 0) (1, 1)
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OP '=' (1, 2) (1, 3)
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STRING "'abc'" (1, 4) (1, 9)
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OP '+' (1, 10) (1, 11)
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STRING "'ABC'" (1, 12) (1, 17)
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>>> dump_tokens('y = "ABC" + "ABC"')
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ENCODING 'utf-8' (0, 0) (0, 0)
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""")
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self.check_tokenize('y = "ABC" + "ABC"', """\
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NAME 'y' (1, 0) (1, 1)
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OP '=' (1, 2) (1, 3)
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STRING '"ABC"' (1, 4) (1, 9)
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OP '+' (1, 10) (1, 11)
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STRING '"ABC"' (1, 12) (1, 17)
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>>> dump_tokens("x = r'abc' + r'ABC' + R'ABC' + R'ABC'")
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ENCODING 'utf-8' (0, 0) (0, 0)
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""")
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self.check_tokenize("x = r'abc' + r'ABC' + R'ABC' + R'ABC'", """\
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NAME 'x' (1, 0) (1, 1)
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OP '=' (1, 2) (1, 3)
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STRING "r'abc'" (1, 4) (1, 10)
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@ -279,8 +237,8 @@ String literals
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STRING "R'ABC'" (1, 22) (1, 28)
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OP '+' (1, 29) (1, 30)
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STRING "R'ABC'" (1, 31) (1, 37)
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>>> dump_tokens('y = r"abc" + r"ABC" + R"ABC" + R"ABC"')
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ENCODING 'utf-8' (0, 0) (0, 0)
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""")
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self.check_tokenize('y = r"abc" + r"ABC" + R"ABC" + R"ABC"', """\
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NAME 'y' (1, 0) (1, 1)
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OP '=' (1, 2) (1, 3)
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STRING 'r"abc"' (1, 4) (1, 10)
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@ -290,30 +248,30 @@ String literals
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STRING 'R"ABC"' (1, 22) (1, 28)
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OP '+' (1, 29) (1, 30)
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STRING 'R"ABC"' (1, 31) (1, 37)
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""")
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>>> dump_tokens("u'abc' + U'abc'")
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ENCODING 'utf-8' (0, 0) (0, 0)
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self.check_tokenize("u'abc' + U'abc'", """\
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STRING "u'abc'" (1, 0) (1, 6)
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OP '+' (1, 7) (1, 8)
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STRING "U'abc'" (1, 9) (1, 15)
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>>> dump_tokens('u"abc" + U"abc"')
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ENCODING 'utf-8' (0, 0) (0, 0)
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""")
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self.check_tokenize('u"abc" + U"abc"', """\
|
||||
STRING 'u"abc"' (1, 0) (1, 6)
|
||||
OP '+' (1, 7) (1, 8)
|
||||
STRING 'U"abc"' (1, 9) (1, 15)
|
||||
""")
|
||||
|
||||
>>> dump_tokens("b'abc' + B'abc'")
|
||||
ENCODING 'utf-8' (0, 0) (0, 0)
|
||||
self.check_tokenize("b'abc' + B'abc'", """\
|
||||
STRING "b'abc'" (1, 0) (1, 6)
|
||||
OP '+' (1, 7) (1, 8)
|
||||
STRING "B'abc'" (1, 9) (1, 15)
|
||||
>>> dump_tokens('b"abc" + B"abc"')
|
||||
ENCODING 'utf-8' (0, 0) (0, 0)
|
||||
""")
|
||||
self.check_tokenize('b"abc" + B"abc"', """\
|
||||
STRING 'b"abc"' (1, 0) (1, 6)
|
||||
OP '+' (1, 7) (1, 8)
|
||||
STRING 'B"abc"' (1, 9) (1, 15)
|
||||
>>> dump_tokens("br'abc' + bR'abc' + Br'abc' + BR'abc'")
|
||||
ENCODING 'utf-8' (0, 0) (0, 0)
|
||||
""")
|
||||
self.check_tokenize("br'abc' + bR'abc' + Br'abc' + BR'abc'", """\
|
||||
STRING "br'abc'" (1, 0) (1, 7)
|
||||
OP '+' (1, 8) (1, 9)
|
||||
STRING "bR'abc'" (1, 10) (1, 17)
|
||||
|
|
@ -321,8 +279,8 @@ String literals
|
|||
STRING "Br'abc'" (1, 20) (1, 27)
|
||||
OP '+' (1, 28) (1, 29)
|
||||
STRING "BR'abc'" (1, 30) (1, 37)
|
||||
>>> dump_tokens('br"abc" + bR"abc" + Br"abc" + BR"abc"')
|
||||
ENCODING 'utf-8' (0, 0) (0, 0)
|
||||
""")
|
||||
self.check_tokenize('br"abc" + bR"abc" + Br"abc" + BR"abc"', """\
|
||||
STRING 'br"abc"' (1, 0) (1, 7)
|
||||
OP '+' (1, 8) (1, 9)
|
||||
STRING 'bR"abc"' (1, 10) (1, 17)
|
||||
|
|
@ -330,8 +288,8 @@ String literals
|
|||
STRING 'Br"abc"' (1, 20) (1, 27)
|
||||
OP '+' (1, 28) (1, 29)
|
||||
STRING 'BR"abc"' (1, 30) (1, 37)
|
||||
>>> dump_tokens("rb'abc' + rB'abc' + Rb'abc' + RB'abc'")
|
||||
ENCODING 'utf-8' (0, 0) (0, 0)
|
||||
""")
|
||||
self.check_tokenize("rb'abc' + rB'abc' + Rb'abc' + RB'abc'", """\
|
||||
STRING "rb'abc'" (1, 0) (1, 7)
|
||||
OP '+' (1, 8) (1, 9)
|
||||
STRING "rB'abc'" (1, 10) (1, 17)
|
||||
|
|
@ -339,8 +297,8 @@ String literals
|
|||
STRING "Rb'abc'" (1, 20) (1, 27)
|
||||
OP '+' (1, 28) (1, 29)
|
||||
STRING "RB'abc'" (1, 30) (1, 37)
|
||||
>>> dump_tokens('rb"abc" + rB"abc" + Rb"abc" + RB"abc"')
|
||||
ENCODING 'utf-8' (0, 0) (0, 0)
|
||||
""")
|
||||
self.check_tokenize('rb"abc" + rB"abc" + Rb"abc" + RB"abc"', """\
|
||||
STRING 'rb"abc"' (1, 0) (1, 7)
|
||||
OP '+' (1, 8) (1, 9)
|
||||
STRING 'rB"abc"' (1, 10) (1, 17)
|
||||
|
|
@ -348,11 +306,10 @@ String literals
|
|||
STRING 'Rb"abc"' (1, 20) (1, 27)
|
||||
OP '+' (1, 28) (1, 29)
|
||||
STRING 'RB"abc"' (1, 30) (1, 37)
|
||||
""")
|
||||
|
||||
Operators
|
||||
|
||||
>>> dump_tokens("def d22(a, b, c=2, d=2, *k): pass")
|
||||
ENCODING 'utf-8' (0, 0) (0, 0)
|
||||
def test_function(self):
|
||||
self.check_tokenize("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)
|
||||
|
|
@ -373,8 +330,8 @@ Operators
|
|||
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")
|
||||
ENCODING 'utf-8' (0, 0) (0, 0)
|
||||
""")
|
||||
self.check_tokenize("def d01v_(a=1, *k, **w): pass", """\
|
||||
NAME 'def' (1, 0) (1, 3)
|
||||
NAME 'd01v_' (1, 4) (1, 9)
|
||||
OP '(' (1, 9) (1, 10)
|
||||
|
|
@ -390,12 +347,12 @@ Operators
|
|||
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")
|
||||
ENCODING 'utf-8' (0, 0) (0, 0)
|
||||
def test_comparison(self):
|
||||
# Comparison
|
||||
self.check_tokenize("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)
|
||||
|
|
@ -428,11 +385,11 @@ Comparison
|
|||
NUMBER '1' (1, 81) (1, 82)
|
||||
OP ':' (1, 82) (1, 83)
|
||||
NAME 'pass' (1, 84) (1, 88)
|
||||
""")
|
||||
|
||||
Shift
|
||||
|
||||
>>> dump_tokens("x = 1 << 1 >> 5")
|
||||
ENCODING 'utf-8' (0, 0) (0, 0)
|
||||
def test_shift(self):
|
||||
# Shift
|
||||
self.check_tokenize("x = 1 << 1 >> 5", """\
|
||||
NAME 'x' (1, 0) (1, 1)
|
||||
OP '=' (1, 2) (1, 3)
|
||||
NUMBER '1' (1, 4) (1, 5)
|
||||
|
|
@ -440,11 +397,11 @@ Shift
|
|||
NUMBER '1' (1, 9) (1, 10)
|
||||
OP '>>' (1, 11) (1, 13)
|
||||
NUMBER '5' (1, 14) (1, 15)
|
||||
""")
|
||||
|
||||
Additive
|
||||
|
||||
>>> dump_tokens("x = 1 - y + 15 - 1 + 0x124 + z + a[5]")
|
||||
ENCODING 'utf-8' (0, 0) (0, 0)
|
||||
def test_additive(self):
|
||||
# Additive
|
||||
self.check_tokenize("x = 1 - y + 15 - 1 + 0x124 + z + a[5]", """\
|
||||
NAME 'x' (1, 0) (1, 1)
|
||||
OP '=' (1, 2) (1, 3)
|
||||
NUMBER '1' (1, 4) (1, 5)
|
||||
|
|
@ -463,11 +420,11 @@ Additive
|
|||
OP '[' (1, 34) (1, 35)
|
||||
NUMBER '5' (1, 35) (1, 36)
|
||||
OP ']' (1, 36) (1, 37)
|
||||
""")
|
||||
|
||||
Multiplicative
|
||||
|
||||
>>> dump_tokens("x = 1//1*1/5*12%0x12")
|
||||
ENCODING 'utf-8' (0, 0) (0, 0)
|
||||
def test_multiplicative(self):
|
||||
# Multiplicative
|
||||
self.check_tokenize("x = 1//1*1/5*12%0x12", """\
|
||||
NAME 'x' (1, 0) (1, 1)
|
||||
OP '=' (1, 2) (1, 3)
|
||||
NUMBER '1' (1, 4) (1, 5)
|
||||
|
|
@ -481,11 +438,11 @@ Multiplicative
|
|||
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")
|
||||
ENCODING 'utf-8' (0, 0) (0, 0)
|
||||
def test_unary(self):
|
||||
# Unary
|
||||
self.check_tokenize("~1 ^ 1 & 1 |1 ^ -1", """\
|
||||
OP '~' (1, 0) (1, 1)
|
||||
NUMBER '1' (1, 1) (1, 2)
|
||||
OP '^' (1, 3) (1, 4)
|
||||
|
|
@ -497,8 +454,8 @@ Unary
|
|||
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")
|
||||
ENCODING 'utf-8' (0, 0) (0, 0)
|
||||
""")
|
||||
self.check_tokenize("-1*1/1+1*1//1 - ---1**1", """\
|
||||
OP '-' (1, 0) (1, 1)
|
||||
NUMBER '1' (1, 1) (1, 2)
|
||||
OP '*' (1, 2) (1, 3)
|
||||
|
|
@ -518,11 +475,11 @@ Unary
|
|||
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()")
|
||||
ENCODING 'utf-8' (0, 0) (0, 0)
|
||||
def test_selector(self):
|
||||
# Selector
|
||||
self.check_tokenize("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)
|
||||
|
|
@ -540,11 +497,11 @@ Selector
|
|||
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")
|
||||
ENCODING 'utf-8' (0, 0) (0, 0)
|
||||
def test_method(self):
|
||||
# Methods
|
||||
self.check_tokenize("@staticmethod\ndef foo(x,y): pass", """\
|
||||
OP '@' (1, 0) (1, 1)
|
||||
NAME 'staticmethod (1, 1) (1, 13)
|
||||
NEWLINE '\\n' (1, 13) (1, 14)
|
||||
|
|
@ -557,52 +514,13 @@ Methods
|
|||
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
|
||||
|
||||
Two string literals on the same line
|
||||
|
||||
>>> roundtrip("'' ''")
|
||||
True
|
||||
|
||||
Test roundtrip on random python modules.
|
||||
pass the '-ucpu' option to process the full directory.
|
||||
|
||||
>>> import random
|
||||
>>> tempdir = os.path.dirname(f) or os.curdir
|
||||
>>> testfiles = glob.glob(os.path.join(tempdir, "test*.py"))
|
||||
|
||||
Tokenize is broken on test_pep3131.py because regular expressions are
|
||||
broken on the obscure unicode identifiers in it. *sigh*
|
||||
With roundtrip extended to test the 5-tuple mode of untokenize,
|
||||
7 more testfiles fail. Remove them also until the failure is diagnosed.
|
||||
|
||||
>>> testfiles.remove(os.path.join(tempdir, "test_pep3131.py"))
|
||||
>>> for f in ('buffer', 'builtin', 'fileio', 'inspect', 'os', 'platform', 'sys'):
|
||||
... testfiles.remove(os.path.join(tempdir, "test_%s.py") % f)
|
||||
...
|
||||
>>> if not support.is_resource_enabled("cpu"):
|
||||
... testfiles = random.sample(testfiles, 10)
|
||||
...
|
||||
>>> for testfile in testfiles:
|
||||
... if not roundtrip(open(testfile, 'rb')):
|
||||
... print("Roundtrip failed for file %s" % testfile)
|
||||
... break
|
||||
... else: True
|
||||
True
|
||||
|
||||
Evil tabs
|
||||
|
||||
>>> dump_tokens("def f():\\n\\tif x\\n \\tpass")
|
||||
ENCODING 'utf-8' (0, 0) (0, 0)
|
||||
def test_tabs(self):
|
||||
# Evil tabs
|
||||
self.check_tokenize("def f():\n"
|
||||
"\tif x\n"
|
||||
" \tpass", """\
|
||||
NAME 'def' (1, 0) (1, 3)
|
||||
NAME 'f' (1, 4) (1, 5)
|
||||
OP '(' (1, 5) (1, 6)
|
||||
|
|
@ -617,11 +535,11 @@ Evil tabs
|
|||
NAME 'pass' (3, 9) (3, 13)
|
||||
DEDENT '' (4, 0) (4, 0)
|
||||
DEDENT '' (4, 0) (4, 0)
|
||||
""")
|
||||
|
||||
Non-ascii identifiers
|
||||
|
||||
>>> dump_tokens("Örter = 'places'\\ngrün = 'green'")
|
||||
ENCODING 'utf-8' (0, 0) (0, 0)
|
||||
def test_non_ascii_identifiers(self):
|
||||
# Non-ascii identifiers
|
||||
self.check_tokenize("Örter = 'places'\ngrün = 'green'", """\
|
||||
NAME 'Örter' (1, 0) (1, 5)
|
||||
OP '=' (1, 6) (1, 7)
|
||||
STRING "'places'" (1, 8) (1, 16)
|
||||
|
|
@ -629,11 +547,11 @@ Non-ascii identifiers
|
|||
NAME 'grün' (2, 0) (2, 4)
|
||||
OP '=' (2, 5) (2, 6)
|
||||
STRING "'green'" (2, 7) (2, 14)
|
||||
""")
|
||||
|
||||
Legacy unicode literals:
|
||||
|
||||
>>> dump_tokens("Örter = u'places'\\ngrün = U'green'")
|
||||
ENCODING 'utf-8' (0, 0) (0, 0)
|
||||
def test_unicode(self):
|
||||
# Legacy unicode literals:
|
||||
self.check_tokenize("Örter = u'places'\ngrün = U'green'", """\
|
||||
NAME 'Örter' (1, 0) (1, 5)
|
||||
OP '=' (1, 6) (1, 7)
|
||||
STRING "u'places'" (1, 8) (1, 17)
|
||||
|
|
@ -641,89 +559,10 @@ Legacy unicode literals:
|
|||
NAME 'grün' (2, 0) (2, 4)
|
||||
OP '=' (2, 5) (2, 6)
|
||||
STRING "U'green'" (2, 7) (2, 15)
|
||||
"""
|
||||
""")
|
||||
|
||||
from test import support
|
||||
from tokenize import (tokenize, _tokenize, untokenize, NUMBER, NAME, OP,
|
||||
STRING, ENDMARKER, ENCODING, tok_name, detect_encoding,
|
||||
open as tokenize_open, Untokenizer)
|
||||
from io import BytesIO
|
||||
from unittest import TestCase, mock
|
||||
import os
|
||||
import token
|
||||
|
||||
def dump_tokens(s):
|
||||
"""Print out the tokens in s in a table format.
|
||||
|
||||
The ENDMARKER is omitted.
|
||||
"""
|
||||
f = BytesIO(s.encode('utf-8'))
|
||||
for type, token, start, end, line in tokenize(f.readline):
|
||||
if type == ENDMARKER:
|
||||
break
|
||||
type = tok_name[type]
|
||||
print("%(type)-10.10s %(token)-13.13r %(start)s %(end)s" % locals())
|
||||
|
||||
def roundtrip(f):
|
||||
"""
|
||||
Test roundtrip for `untokenize`. `f` is an open file or a string.
|
||||
The source code in f is tokenized to both 5- and 2-tuples.
|
||||
Both sequences are converted back to source code via
|
||||
tokenize.untokenize(), and the latter tokenized again to 2-tuples.
|
||||
The test fails if the 3 pair tokenizations do not match.
|
||||
|
||||
When untokenize bugs are fixed, untokenize with 5-tuples should
|
||||
reproduce code that does not contain a backslash continuation
|
||||
following spaces. A proper test should test this.
|
||||
|
||||
This function would be more useful for correcting bugs if it reported
|
||||
the first point of failure, like assertEqual, rather than just
|
||||
returning False -- or if it were only used in unittests and not
|
||||
doctest and actually used assertEqual.
|
||||
"""
|
||||
# Get source code and original tokenizations
|
||||
if isinstance(f, str):
|
||||
code = f.encode('utf-8')
|
||||
else:
|
||||
code = f.read()
|
||||
f.close()
|
||||
readline = iter(code.splitlines(keepends=True)).__next__
|
||||
tokens5 = list(tokenize(readline))
|
||||
tokens2 = [tok[:2] for tok in tokens5]
|
||||
# Reproduce tokens2 from pairs
|
||||
bytes_from2 = untokenize(tokens2)
|
||||
readline2 = iter(bytes_from2.splitlines(keepends=True)).__next__
|
||||
tokens2_from2 = [tok[:2] for tok in tokenize(readline2)]
|
||||
# Reproduce tokens2 from 5-tuples
|
||||
bytes_from5 = untokenize(tokens5)
|
||||
readline5 = iter(bytes_from5.splitlines(keepends=True)).__next__
|
||||
tokens2_from5 = [tok[:2] for tok in tokenize(readline5)]
|
||||
# Compare 3 versions
|
||||
return tokens2 == tokens2_from2 == tokens2_from5
|
||||
|
||||
# This is an example from the docs, set up as a doctest.
|
||||
def decistmt(s):
|
||||
"""Substitute Decimals for floats in a string of statements.
|
||||
|
||||
>>> from decimal import Decimal
|
||||
>>> s = 'print(+21.3e-5*-.1234/81.7)'
|
||||
>>> decistmt(s)
|
||||
"print (+Decimal ('21.3e-5')*-Decimal ('.1234')/Decimal ('81.7'))"
|
||||
|
||||
The format of the exponent is inherited from the platform C library.
|
||||
Known cases are "e-007" (Windows) and "e-07" (not Windows). Since
|
||||
we're only showing 11 digits, and the 12th isn't close to 5, the
|
||||
rest of the output should be platform-independent.
|
||||
|
||||
>>> exec(s) #doctest: +ELLIPSIS
|
||||
-3.2171603427...e-0...7
|
||||
|
||||
Output from calculations with Decimal should be identical across all
|
||||
platforms.
|
||||
|
||||
>>> exec(decistmt(s))
|
||||
-3.217160342717258261933904529E-7
|
||||
"""
|
||||
result = []
|
||||
g = tokenize(BytesIO(s.encode('utf-8')).readline) # tokenize the string
|
||||
for toknum, tokval, _, _, _ in g:
|
||||
|
|
@ -738,6 +577,28 @@ def decistmt(s):
|
|||
result.append((toknum, tokval))
|
||||
return untokenize(result).decode('utf-8')
|
||||
|
||||
class TestMisc(TestCase):
|
||||
|
||||
def test_decistmt(self):
|
||||
# Substitute Decimals for floats in a string of statements.
|
||||
# This is an example from the docs.
|
||||
|
||||
from decimal import Decimal
|
||||
s = '+21.3e-5*-.1234/81.7'
|
||||
self.assertEqual(decistmt(s),
|
||||
"+Decimal ('21.3e-5')*-Decimal ('.1234')/Decimal ('81.7')")
|
||||
|
||||
# The format of the exponent is inherited from the platform C library.
|
||||
# Known cases are "e-007" (Windows) and "e-07" (not Windows). Since
|
||||
# we're only showing 11 digits, and the 12th isn't close to 5, the
|
||||
# rest of the output should be platform-independent.
|
||||
self.assertRegex(repr(eval(s)), '-3.2171603427[0-9]*e-0+7')
|
||||
|
||||
# Output from calculations with Decimal should be identical across all
|
||||
# platforms.
|
||||
self.assertEqual(eval(decistmt(s)),
|
||||
Decimal('-3.217160342717258261933904529E-7'))
|
||||
|
||||
|
||||
class TestTokenizerAdheresToPep0263(TestCase):
|
||||
"""
|
||||
|
|
@ -746,11 +607,11 @@ class TestTokenizerAdheresToPep0263(TestCase):
|
|||
|
||||
def _testFile(self, filename):
|
||||
path = os.path.join(os.path.dirname(__file__), filename)
|
||||
return roundtrip(open(path, 'rb'))
|
||||
TestRoundtrip.check_roundtrip(self, open(path, 'rb'))
|
||||
|
||||
def test_utf8_coding_cookie_and_no_utf8_bom(self):
|
||||
f = 'tokenize_tests-utf8-coding-cookie-and-no-utf8-bom-sig.txt'
|
||||
self.assertTrue(self._testFile(f))
|
||||
self._testFile(f)
|
||||
|
||||
def test_latin1_coding_cookie_and_utf8_bom(self):
|
||||
"""
|
||||
|
|
@ -765,11 +626,11 @@ class TestTokenizerAdheresToPep0263(TestCase):
|
|||
|
||||
def test_no_coding_cookie_and_utf8_bom(self):
|
||||
f = 'tokenize_tests-no-coding-cookie-and-utf8-bom-sig-only.txt'
|
||||
self.assertTrue(self._testFile(f))
|
||||
self._testFile(f)
|
||||
|
||||
def test_utf8_coding_cookie_and_utf8_bom(self):
|
||||
f = 'tokenize_tests-utf8-coding-cookie-and-utf8-bom-sig.txt'
|
||||
self.assertTrue(self._testFile(f))
|
||||
self._testFile(f)
|
||||
|
||||
def test_bad_coding_cookie(self):
|
||||
self.assertRaises(SyntaxError, self._testFile, 'bad_coding.py')
|
||||
|
|
@ -1068,7 +929,6 @@ class TestDetectEncoding(TestCase):
|
|||
self.assertTrue(m.closed)
|
||||
|
||||
|
||||
|
||||
class TestTokenize(TestCase):
|
||||
|
||||
def test_tokenize(self):
|
||||
|
|
@ -1188,6 +1048,7 @@ class TestTokenize(TestCase):
|
|||
# See http://bugs.python.org/issue16152
|
||||
self.assertExactTypeEqual('@ ', token.AT)
|
||||
|
||||
|
||||
class UntokenizeTest(TestCase):
|
||||
|
||||
def test_bad_input_order(self):
|
||||
|
|
@ -1213,7 +1074,7 @@ class UntokenizeTest(TestCase):
|
|||
u.prev_row = 2
|
||||
u.add_whitespace((4, 4))
|
||||
self.assertEqual(u.tokens, ['\\\n', '\\\n\\\n', ' '])
|
||||
self.assertTrue(roundtrip('a\n b\n c\n \\\n c\n'))
|
||||
TestRoundtrip.check_roundtrip(self, 'a\n b\n c\n \\\n c\n')
|
||||
|
||||
def test_iter_compat(self):
|
||||
u = Untokenizer()
|
||||
|
|
@ -1230,6 +1091,131 @@ class UntokenizeTest(TestCase):
|
|||
|
||||
|
||||
class TestRoundtrip(TestCase):
|
||||
|
||||
def check_roundtrip(self, f):
|
||||
"""
|
||||
Test roundtrip for `untokenize`. `f` is an open file or a string.
|
||||
The source code in f is tokenized to both 5- and 2-tuples.
|
||||
Both sequences are converted back to source code via
|
||||
tokenize.untokenize(), and the latter tokenized again to 2-tuples.
|
||||
The test fails if the 3 pair tokenizations do not match.
|
||||
|
||||
When untokenize bugs are fixed, untokenize with 5-tuples should
|
||||
reproduce code that does not contain a backslash continuation
|
||||
following spaces. A proper test should test this.
|
||||
"""
|
||||
# Get source code and original tokenizations
|
||||
if isinstance(f, str):
|
||||
code = f.encode('utf-8')
|
||||
else:
|
||||
code = f.read()
|
||||
f.close()
|
||||
readline = iter(code.splitlines(keepends=True)).__next__
|
||||
tokens5 = list(tokenize(readline))
|
||||
tokens2 = [tok[:2] for tok in tokens5]
|
||||
# Reproduce tokens2 from pairs
|
||||
bytes_from2 = untokenize(tokens2)
|
||||
readline2 = iter(bytes_from2.splitlines(keepends=True)).__next__
|
||||
tokens2_from2 = [tok[:2] for tok in tokenize(readline2)]
|
||||
self.assertEqual(tokens2_from2, tokens2)
|
||||
# Reproduce tokens2 from 5-tuples
|
||||
bytes_from5 = untokenize(tokens5)
|
||||
readline5 = iter(bytes_from5.splitlines(keepends=True)).__next__
|
||||
tokens2_from5 = [tok[:2] for tok in tokenize(readline5)]
|
||||
self.assertEqual(tokens2_from5, tokens2)
|
||||
|
||||
def test_roundtrip(self):
|
||||
# There are some standard formatting practices that are easy to get right.
|
||||
|
||||
self.check_roundtrip("if x == 1:\n"
|
||||
" print(x)\n")
|
||||
self.check_roundtrip("# This is a comment\n"
|
||||
"# This also")
|
||||
|
||||
# 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.
|
||||
|
||||
self.check_roundtrip("if x == 1 : \n"
|
||||
" print(x)\n")
|
||||
fn = support.findfile("tokenize_tests.txt")
|
||||
with open(fn, 'rb') as f:
|
||||
self.check_roundtrip(f)
|
||||
self.check_roundtrip("if x == 1:\n"
|
||||
" # A comment by itself.\n"
|
||||
" print(x) # Comment here, too.\n"
|
||||
" # Another comment.\n"
|
||||
"after_if = True\n")
|
||||
self.check_roundtrip("if (x # The comments need to go in the right place\n"
|
||||
" == 1):\n"
|
||||
" print('x==1')\n")
|
||||
self.check_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")
|
||||
|
||||
# Some error-handling code
|
||||
self.check_roundtrip("try: import somemodule\n"
|
||||
"except ImportError: # comment\n"
|
||||
" print('Can not import' # comment2\n)"
|
||||
"else: print('Loaded')\n")
|
||||
|
||||
def test_continuation(self):
|
||||
# Balancing continuation
|
||||
self.check_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")
|
||||
|
||||
def test_backslash_continuation(self):
|
||||
# Backslash means line continuation, except for comments
|
||||
self.check_roundtrip("x=1+\\\n"
|
||||
"1\n"
|
||||
"# This is a comment\\\n"
|
||||
"# This also\n")
|
||||
self.check_roundtrip("# Comment \\\n"
|
||||
"x = 0")
|
||||
|
||||
def test_string_concatenation(self):
|
||||
# Two string literals on the same line
|
||||
self.check_roundtrip("'' ''")
|
||||
|
||||
def test_random_files(self):
|
||||
# Test roundtrip on random python modules.
|
||||
# pass the '-ucpu' option to process the full directory.
|
||||
|
||||
import glob, random
|
||||
fn = support.findfile("tokenize_tests.txt")
|
||||
tempdir = os.path.dirname(fn) or os.curdir
|
||||
testfiles = glob.glob(os.path.join(tempdir, "test*.py"))
|
||||
|
||||
# Tokenize is broken on test_pep3131.py because regular expressions are
|
||||
# broken on the obscure unicode identifiers in it. *sigh*
|
||||
# With roundtrip extended to test the 5-tuple mode of untokenize,
|
||||
# 7 more testfiles fail. Remove them also until the failure is diagnosed.
|
||||
|
||||
testfiles.remove(os.path.join(tempdir, "test_pep3131.py"))
|
||||
for f in ('buffer', 'builtin', 'fileio', 'inspect', 'os', 'platform', 'sys'):
|
||||
testfiles.remove(os.path.join(tempdir, "test_%s.py") % f)
|
||||
|
||||
if not support.is_resource_enabled("cpu"):
|
||||
testfiles = random.sample(testfiles, 10)
|
||||
|
||||
for testfile in testfiles:
|
||||
with open(testfile, 'rb') as f:
|
||||
with self.subTest(file=testfile):
|
||||
self.check_roundtrip(f)
|
||||
|
||||
|
||||
def roundtrip(self, code):
|
||||
if isinstance(code, str):
|
||||
code = code.encode('utf-8')
|
||||
|
|
@ -1243,19 +1229,8 @@ class TestRoundtrip(TestCase):
|
|||
code = "if False:\n\tx=3\n\tx=3\n"
|
||||
codelines = self.roundtrip(code).split('\n')
|
||||
self.assertEqual(codelines[1], codelines[2])
|
||||
self.check_roundtrip(code)
|
||||
|
||||
|
||||
__test__ = {"doctests" : doctests, 'decistmt': decistmt}
|
||||
|
||||
def test_main():
|
||||
from test import test_tokenize
|
||||
support.run_doctest(test_tokenize, True)
|
||||
support.run_unittest(TestTokenizerAdheresToPep0263)
|
||||
support.run_unittest(Test_Tokenize)
|
||||
support.run_unittest(TestDetectEncoding)
|
||||
support.run_unittest(TestTokenize)
|
||||
support.run_unittest(UntokenizeTest)
|
||||
support.run_unittest(TestRoundtrip)
|
||||
|
||||
if __name__ == "__main__":
|
||||
test_main()
|
||||
unittest.main()
|
||||
|
|
|
|||
Loading…
Reference in New Issue