CMake.git - CMake is a cross-platform, open-source build system generator.

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author	Brad King <brad.king@kitware.com>	2018-01-23 13:55:58 (GMT)
committer	Brad King <brad.king@kitware.com>	2018-01-23 14:29:07 (GMT)
commit	98628de812c4724fb2da199abb5fe08eeb5a1a64 (patch)
tree	66e7c15536fede8e4b4f266147d19754e48311b8
parent	3b588ac58256540e6dc974cf2d1a122c95f19171 (diff)
download	CMake-98628de812c4724fb2da199abb5fe08eeb5a1a64.zip CMake-98628de812c4724fb2da199abb5fe08eeb5a1a64.tar.gz CMake-98628de812c4724fb2da199abb5fe08eeb5a1a64.tar.bz2

Extend libuv file translate mode workaround to all executables

Since libuv commit v1.14.1~7 (win: add uv__once_init() calls, 2017-08-30) the libuv initialization of the file translate mode may take place even if we do not use a uv loop. This change was included in our libuv update commit f4a26c748b (libuv 2018-01-19). Therefore use of libuv even through `cmSystemTools::GetRealPath` in any executable may trigger its file translate mode setting. Factor out the logic added to `cmake.exe` by commit v3.9.0-rc4~10^2 (cmake: Fix default file translate mode when using libuv, 2017-06-13) and re-use to initialize all executables. Issue: #16962

Diffstat

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Source/CPack/cpack.cxx

-rw-r--r--

Source/CursesDialog/ccmake.cxx

-rw-r--r--

Source/QtDialog/CMakeSetup.cxx

-rw-r--r--

Source/cmSystemTools.cxx

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Source/cmSystemTools.h

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Source/cmakemain.cxx

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Source/ctest.cxx

7 files changed, 26 insertions, 16 deletions

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, generate_tokens, NEWLINE) from io import BytesIO, StringIO import unittest from unittest import TestCase, mock from test.test_grammar import (VALID_UNDERSCORE_LITERALS, INVALID_UNDERSCORE_LITERALS) import os import token # Converts a source string into a list of textual representation # of the tokens such as: # ` NAME 'if' (1, 0) (1, 2)` # to make writing tests easier. def stringify_tokens_from_source(token_generator, source_string): result = [] num_lines = len(source_string.splitlines()) missing_trailing_nl = source_string[-1] not in '\r\n' for type, token, start, end, line in token_generator: if type == ENDMARKER: break # Ignore the new line on the last line if the input lacks one if missing_trailing_nl and type == NEWLINE and end[0] == num_lines: continue type = tok_name[type] result.append(f" {type:10} {token!r:13} {start} {end}") return result class TokenizeTest(TestCase): # Tests for the tokenize module. # The tests can be really simple. Given a small fragment of source # code, print out a table with tokens. The ENDMARKER, ENCODING and # final NEWLINE are omitted for brevity. def check_tokenize(self, s, expected): # Format the tokens in s in a table format. # The ENDMARKER and final NEWLINE are omitted. f = BytesIO(s.encode('utf-8')) result = stringify_tokens_from_source(tokenize(f.readline), s) self.assertEqual(result, [" ENCODING 'utf-8' (0, 0) (0, 0)"] + expected.rstrip().splitlines()) def test_implicit_newline(self): # Make sure that the tokenizer puts in an implicit NEWLINE # when the input lacks a trailing new line. f = BytesIO("x".encode('utf-8')) tokens = list(tokenize(f.readline)) self.assertEqual(tokens[-2].type, NEWLINE) self.assertEqual(tokens[-1].type, ENDMARKER) def test_basic(self): self.check_tokenize("1 + 1", """\ NUMBER '1' (1, 0) (1, 1) OP '+' (1, 2) (1, 3) NUMBER '1' (1, 4) (1, 5) """) self.check_tokenize("if False:\n" " # NL\n" " \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) NL '\\n' (3, 4) (3, 5) INDENT ' ' (4, 0) (4, 4) NAME 'True' (4, 4) (4, 8) OP '=' (4, 9) (4, 10) NAME 'False' (4, 11) (4, 16) COMMENT '# NEWLINE' (4, 17) (4, 26) NEWLINE '\\n' (4, 26) (4, 27) DEDENT '' (5, 0) (5, 0) """) indent_error_file = b"""\ def k(x): x += 2 x += 5 """ readline = BytesIO(indent_error_file).readline with self.assertRaisesRegex(IndentationError, "unindent does not match any " "outer indentation level"): for tok in tokenize(readline): pass def test_int(self): # Ordinary integers and binary operators self.check_tokenize("0xff <= 255", """\ NUMBER '0xff' (1, 0) (1, 4) OP '<=' (1, 5) (1, 7) NUMBER '255' (1, 8) (1, 11) """) self.check_tokenize("0b10 <= 255", """\ NUMBER '0b10' (1, 0) (1, 4) OP '<=' (1, 5) (1, 7) NUMBER '255' (1, 8) (1, 11) """) self.check_tokenize("0o123 <= 0O123", """\ NUMBER '0o123' (1, 0) (1, 5) OP '<=' (1, 6) (1, 8) NUMBER '0O123' (1, 9) (1, 14) """) self.check_tokenize("1234567 > ~0x15", """\ NUMBER '1234567' (1, 0) (1, 7) OP '>' (1, 8) (1, 9) OP '~' (1, 10) (1, 11) NUMBER '0x15' (1, 11) (1, 15) """) self.check_tokenize("2134568 != 1231515", """\ NUMBER '2134568' (1, 0) (1, 7) OP '!=' (1, 8) (1, 10) NUMBER '1231515' (1, 11) (1, 18) """) self.check_tokenize("(-124561-1) & 200000000", """\ 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 '200000000' (1, 14) (1, 23) """) self.check_tokenize("0xdeadbeef != -1", """\ NUMBER '0xdeadbeef' (1, 0) (1, 10) OP '!=' (1, 11) (1, 13) OP '-' (1, 14) (1, 15) NUMBER '1' (1, 15) (1, 16) """) self.check_tokenize("0xdeadc0de & 12345", """\ NUMBER '0xdeadc0de' (1, 0) (1, 10) OP '&' (1, 11) (1, 12) NUMBER '12345' (1, 13) (1, 18) """) self.check_tokenize("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) """) def test_long(self): # Long integers self.check_tokenize("x = 0", """\ NAME 'x' (1, 0) (1, 1) OP '=' (1, 2) (1, 3) NUMBER '0' (1, 4) (1, 5) """) self.check_tokenize("x = 0xfffffffffff", """\ NAME 'x' (1, 0) (1, 1) OP '=' (1, 2) (1, 3) NUMBER '0xfffffffffff' (1, 4) (1, 17) """) self.check_tokenize("x = 123141242151251616110", """\ NAME 'x' (1, 0) (1, 1) OP '=' (1, 2) (1, 3) NUMBER '123141242151251616110' (1, 4) (1, 25) """) self.check_tokenize("x = -15921590215012591", """\ NAME 'x' (1, 0) (1, 1) OP '=' (1, 2) (1, 3) OP '-' (1, 4) (1, 5) NUMBER '15921590215012591' (1, 5) (1, 22) """) def test_float(self): # Floating point numbers self.check_tokenize("x = 3.14159", """\ NAME 'x' (1, 0) (1, 1) OP '=' (1, 2) (1, 3) NUMBER '3.14159' (1, 4) (1, 11) """) self.check_tokenize("x = 314159.", """\ NAME 'x' (1, 0) (1, 1) OP '=' (1, 2) (1, 3) NUMBER '314159.' (1, 4) (1, 11) """) self.check_tokenize("x = .314159", """\ NAME 'x' (1, 0) (1, 1) OP '=' (1, 2) (1, 3) NUMBER '.314159' (1, 4) (1, 11) """) self.check_tokenize("x = 3e14159", """\ NAME 'x' (1, 0) (1, 1) OP '=' (1, 2) (1, 3) NUMBER '3e14159' (1, 4) (1, 11) """) self.check_tokenize("x = 3E123", """\ NAME 'x' (1, 0) (1, 1) OP '=' (1, 2) (1, 3) NUMBER '3E123' (1, 4) (1, 9) """) self.check_tokenize("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) """) self.check_tokenize("x = 3.14e159", """\ NAME 'x' (1, 0) (1, 1) OP '=' (1, 2) (1, 3) NUMBER '3.14e159' (1, 4) (1, 12) """) def test_underscore_literals(self): def number_token(s): f = BytesIO(s.encode('utf-8')) for toktype, token, start, end, line in tokenize(f.readline): if toktype == NUMBER: return token return 'invalid token' for lit in VALID_UNDERSCORE_LITERALS: if '(' in lit: # this won't work with compound complex inputs continue self.assertEqual(number_token(lit), lit) for lit in INVALID_UNDERSCORE_LITERALS: self.assertNotEqual(number_token(lit), lit) def test_string(self): # String literals self.check_tokenize("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) """) self.check_tokenize("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) """) self.check_tokenize("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) """) self.check_tokenize("x = 'abc' + 'ABC'", """\ NAME 'x' (1, 0) (1, 1) OP '=' (1, 2) (1, 3) STRING "'abc'" (1, 4) (1, 9) OP '+' (1, 10) (1, 11) STRING "'ABC'" (1, 12) (1, 17) """) self.check_tokenize('y = "ABC" + "ABC"', """\ NAME 'y' (1, 0) (1, 1) OP '=' (1, 2) (1, 3) STRING '"ABC"' (1, 4) (1, 9) OP '+' (1, 10) (1, 11) STRING '"ABC"' (1, 12) (1, 17) """) self.check_tokenize("x = r'abc' + r'ABC' + R'ABC' + R'ABC'", """\ NAME 'x' (1, 0) (1, 1) OP '=' (1, 2) (1, 3) STRING "r'abc'" (1, 4) (1, 10) OP '+' (1, 11) (1, 12) STRING "r'ABC'" (1, 13) (1, 19) OP '+' (1, 20) (1, 21) STRING "R'ABC'" (1, 22) (1, 28) OP '+' (1, 29) (1, 30) STRING "R'ABC'" (1, 31) (1, 37) """) self.check_tokenize('y = r"abc" + r"ABC" + R"ABC" + R"ABC"', """\ NAME 'y' (1, 0) (1, 1) OP '=' (1, 2) (1, 3) STRING 'r"abc"' (1, 4) (1, 10) OP '+' (1, 11) (1, 12) STRING 'r"ABC"' (1, 13) (1, 19) OP '+' (1, 20) (1, 21) STRING 'R"ABC"' (1, 22) (1, 28) OP '+' (1, 29) (1, 30) STRING 'R"ABC"' (1, 31) (1, 37) """) 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) """) 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) """) 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) """) 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) """) 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) OP '+' (1, 18) (1, 19) STRING "Br'abc'" (1, 20) (1, 27) OP '+' (1, 28) (1, 29) STRING "BR'abc'" (1, 30) (1, 37) """) 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) OP '+' (1, 18) (1, 19) STRING 'Br"abc"' (1, 20) (1, 27) OP '+' (1, 28) (1, 29) STRING 'BR"abc"' (1, 30) (1, 37) """) 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) OP '+' (1, 18) (1, 19) STRING "Rb'abc'" (1, 20) (1, 27) OP '+' (1, 28) (1, 29) STRING "RB'abc'" (1, 30) (1, 37) """) 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) OP '+' (1, 18) (1, 19) STRING 'Rb"abc"' (1, 20) (1, 27) OP '+' (1, 28) (1, 29) STRING 'RB"abc"' (1, 30) (1, 37) """) # Check 0, 1, and 2 character string prefixes. self.check_tokenize(r'"a\ de\ fg"', """\ STRING '"a\\\\\\nde\\\\\\nfg"\' (1, 0) (3, 3) """) self.check_tokenize(r'u"a\ de"', """\ STRING 'u"a\\\\\\nde"\' (1, 0) (2, 3) """) self.check_tokenize(r'rb"a\ d"', """\ STRING 'rb"a\\\\\\nd"\' (1, 0) (2, 2) """) self.check_tokenize(r'"""a\ b"""', """\ STRING '\"\""a\\\\\\nb\"\""' (1, 0) (2, 4) """) self.check_tokenize(r'u"""a\ b"""', """\ STRING 'u\"\""a\\\\\\nb\"\""' (1, 0) (2, 4) """) self.check_tokenize(r'rb"""a\ b\ c"""', """\ STRING 'rb"\""a\\\\\\nb\\\\\\nc"\""' (1, 0) (3, 4) """) self.check_tokenize('f"abc"', """\ STRING 'f"abc"' (1, 0) (1, 6) """) self.check_tokenize('fR"a{b}c"', """\ STRING 'fR"a{b}c"' (1, 0) (1, 9) """) self.check_tokenize('f"""abc"""', """\ STRING 'f\"\"\"abc\"\"\"' (1, 0) (1, 10) """) self.check_tokenize(r'f"abc\ def"', """\ STRING 'f"abc\\\\\\ndef"' (1, 0) (2, 4) """) self.check_tokenize(r'Rf"abc\ def"', """\ STRING 'Rf"abc\\\\\\ndef"' (1, 0) (2, 4) """) 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) 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) """) 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) 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) """) self.check_tokenize("def d23(a: str, b: int=3) -> int: pass", """\ NAME 'def' (1, 0) (1, 3) NAME 'd23' (1, 4) (1, 7) OP '(' (1, 7) (1, 8) NAME 'a' (1, 8) (1, 9) OP ':' (1, 9) (1, 10) NAME 'str' (1, 11) (1, 14) OP ',' (1, 14) (1, 15) NAME 'b' (1, 16) (1, 17) OP ':' (1, 17) (1, 18) NAME 'int' (1, 19) (1, 22) OP '=' (1, 22) (1, 23) NUMBER '3' (1, 23) (1, 24) OP ')' (1, 24) (1, 25) OP '->' (1, 26) (1, 28) NAME 'int' (1, 29) (1, 32) OP ':' (1, 32) (1, 33) NAME 'pass' (1, 34) (1, 38) """) 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) 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) """) 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) OP '<<' (1, 6) (1, 8) NUMBER '1' (1, 9) (1, 10) OP '>>' (1, 11) (1, 13) NUMBER '5' (1, 14) (1, 15) """) 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) 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 '1' (1, 17) (1, 18) OP '+' (1, 19) (1, 20) NUMBER '0x124' (1, 21) (1, 26) OP '+' (1, 27) (1, 28) NAME 'z' (1, 29) (1, 30) OP '+' (1, 31) (1, 32) NAME 'a' (1, 33) (1, 34) OP '[' (1, 34) (1, 35) NUMBER '5' (1, 35) (1, 36) OP ']' (1, 36) (1, 37) """) def test_multiplicative(self): # Multiplicative self.check_tokenize("x = 1//1*1/5*12%0x12@42", """\ 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) OP '@' (1, 20) (1, 21) NUMBER '42' (1, 21) (1, 23) """) 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) 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) """) 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) 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) """) 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) 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) """) 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) 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) """) 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) OP ')' (1, 6) (1, 7) OP ':' (1, 7) (1, 8) NEWLINE '\\n' (1, 8) (1, 9) INDENT '\\t' (2, 0) (2, 1) NAME 'if' (2, 1) (2, 3) NAME 'x' (2, 4) (2, 5) NEWLINE '\\n' (2, 5) (2, 6) INDENT ' \\t' (3, 0) (3, 9) NAME 'pass' (3, 9) (3, 13) DEDENT '' (4, 0) (4, 0) DEDENT '' (4, 0) (4, 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) NEWLINE '\\n' (1, 16) (1, 17) NAME 'grün' (2, 0) (2, 4) OP '=' (2, 5) (2, 6) STRING "'green'" (2, 7) (2, 14) """) 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) NEWLINE '\\n' (1, 17) (1, 18) NAME 'grün' (2, 0) (2, 4) OP '=' (2, 5) (2, 6) STRING "U'green'" (2, 7) (2, 15) """) def test_async(self): # Async/await extension: self.check_tokenize("async = 1", """\ NAME 'async' (1, 0) (1, 5) OP '=' (1, 6) (1, 7) NUMBER '1' (1, 8) (1, 9) """) self.check_tokenize("a = (async = 1)", """\ NAME 'a' (1, 0) (1, 1) OP '=' (1, 2) (1, 3) OP '(' (1, 4) (1, 5) NAME 'async' (1, 5) (1, 10) OP '=' (1, 11) (1, 12) NUMBER '1' (1, 13) (1, 14) OP ')' (1, 14) (1, 15) """) self.check_tokenize("async()", """\ NAME 'async' (1, 0) (1, 5) OP '(' (1, 5) (1, 6) OP ')' (1, 6) (1, 7) """) self.check_tokenize("class async(Bar):pass", """\ NAME 'class' (1, 0) (1, 5) NAME 'async' (1, 6) (1, 11) OP '(' (1, 11) (1, 12) NAME 'Bar' (1, 12) (1, 15) OP ')' (1, 15) (1, 16) OP ':' (1, 16) (1, 17) NAME 'pass' (1, 17) (1, 21) """) self.check_tokenize("class async:pass", """\ NAME 'class' (1, 0) (1, 5) NAME 'async' (1, 6) (1, 11) OP ':' (1, 11) (1, 12) NAME 'pass' (1, 12) (1, 16) """) self.check_tokenize("await = 1", """\ NAME 'await' (1, 0) (1, 5) OP '=' (1, 6) (1, 7) NUMBER '1' (1, 8) (1, 9) """) self.check_tokenize("foo.async", """\ NAME 'foo' (1, 0) (1, 3) OP '.' (1, 3) (1, 4) NAME 'async' (1, 4) (1, 9) """) self.check_tokenize("async for a in b: pass", """\ NAME 'async' (1, 0) (1, 5) NAME 'for' (1, 6) (1, 9) NAME 'a' (1, 10) (1, 11) NAME 'in' (1, 12) (1, 14) NAME 'b' (1, 15) (1, 16) OP ':' (1, 16) (1, 17) NAME 'pass' (1, 18) (1, 22) """) self.check_tokenize("async with a as b: pass", """\ NAME 'async' (1, 0) (1, 5) NAME 'with' (1, 6) (1, 10) NAME 'a' (1, 11) (1, 12) NAME 'as' (1, 13) (1, 15) NAME 'b' (1, 16) (1, 17) OP ':' (1, 17) (1, 18) NAME 'pass' (1, 19) (1, 23) """) self.check_tokenize("async.foo", """\ NAME 'async' (1, 0) (1, 5) OP '.' (1, 5) (1, 6) NAME 'foo' (1, 6) (1, 9) """) self.check_tokenize("async", """\ NAME 'async' (1, 0) (1, 5) """) self.check_tokenize("async\n#comment\nawait", """\ NAME 'async' (1, 0) (1, 5) NEWLINE '\\n' (1, 5) (1, 6) COMMENT '#comment' (2, 0) (2, 8) NL '\\n' (2, 8) (2, 9) NAME 'await' (3, 0) (3, 5) """) self.check_tokenize("async\n...\nawait", """\ NAME 'async' (1, 0) (1, 5) NEWLINE '\\n' (1, 5) (1, 6) OP '...' (2, 0) (2, 3) NEWLINE '\\n' (2, 3) (2, 4) NAME 'await' (3, 0) (3, 5) """) self.check_tokenize("async\nawait", """\ NAME 'async' (1, 0) (1, 5) NEWLINE '\\n' (1, 5) (1, 6) NAME 'await' (2, 0) (2, 5) """) self.check_tokenize("foo.async + 1", """\ NAME 'foo' (1, 0) (1, 3) OP '.' (1, 3) (1, 4) NAME 'async' (1, 4) (1, 9) OP '+' (1, 10) (1, 11) NUMBER '1' (1, 12) (1, 13) """) self.check_tokenize("async def foo(): pass", """\ NAME 'async' (1, 0) (1, 5) NAME 'def' (1, 6) (1, 9) NAME 'foo' (1, 10) (1, 13) OP '(' (1, 13) (1, 14) OP ')' (1, 14) (1, 15) OP ':' (1, 15) (1, 16) NAME 'pass' (1, 17) (1, 21) """) self.check_tokenize('''\ async def foo(): def foo(await): await = 1 if 1: await async += 1 ''', """\ NAME 'async' (1, 0) (1, 5) NAME 'def' (1, 6) (1, 9) NAME 'foo' (1, 10) (1, 13) OP '(' (1, 13) (1, 14) OP ')' (1, 14) (1, 15) OP ':' (1, 15) (1, 16) NEWLINE '\\n' (1, 16) (1, 17) INDENT ' ' (2, 0) (2, 2) NAME 'def' (2, 2) (2, 5) NAME 'foo' (2, 6) (2, 9) OP '(' (2, 9) (2, 10) NAME 'await' (2, 10) (2, 15) OP ')' (2, 15) (2, 16) OP ':' (2, 16) (2, 17) NEWLINE '\\n' (2, 17) (2, 18) INDENT ' ' (3, 0) (3, 4) NAME 'await' (3, 4) (3, 9) OP '=' (3, 10) (3, 11) NUMBER '1' (3, 12) (3, 13) NEWLINE '\\n' (3, 13) (3, 14) DEDENT '' (4, 2) (4, 2) NAME 'if' (4, 2) (4, 4) NUMBER '1' (4, 5) (4, 6) OP ':' (4, 6) (4, 7) NEWLINE '\\n' (4, 7) (4, 8) INDENT ' ' (5, 0) (5, 4) NAME 'await' (5, 4) (5, 9) NEWLINE '\\n' (5, 9) (5, 10) DEDENT '' (6, 0) (6, 0) DEDENT '' (6, 0) (6, 0) NAME 'async' (6, 0) (6, 5) OP '+=' (6, 6) (6, 8) NUMBER '1' (6, 9) (6, 10) NEWLINE '\\n' (6, 10) (6, 11) """) self.check_tokenize('''\ async def foo(): async for i in 1: pass''', """\ NAME 'async' (1, 0) (1, 5) NAME 'def' (1, 6) (1, 9) NAME 'foo' (1, 10) (1, 13) OP '(' (1, 13) (1, 14) OP ')' (1, 14) (1, 15) OP ':' (1, 15) (1, 16) NEWLINE '\\n' (1, 16) (1, 17) INDENT ' ' (2, 0) (2, 2) NAME 'async' (2, 2) (2, 7) NAME 'for' (2, 8) (2, 11) NAME 'i' (2, 12) (2, 13) NAME 'in' (2, 14) (2, 16) NUMBER '1' (2, 17) (2, 18) OP ':' (2, 18) (2, 19) NAME 'pass' (2, 20) (2, 24) DEDENT '' (3, 0) (3, 0) """) self.check_tokenize('''async def foo(async): await''', """\ NAME 'async' (1, 0) (1, 5) NAME 'def' (1, 6) (1, 9) NAME 'foo' (1, 10) (1, 13) OP '(' (1, 13) (1, 14) NAME 'async' (1, 14) (1, 19) OP ')' (1, 19) (1, 20) OP ':' (1, 20) (1, 21) NAME 'await' (1, 22) (1, 27) """) self.check_tokenize('''\ def f(): def baz(): pass async def bar(): pass await = 2''', """\ NAME 'def' (1, 0) (1, 3) NAME 'f' (1, 4) (1, 5) OP '(' (1, 5) (1, 6) OP ')' (1, 6) (1, 7) OP ':' (1, 7) (1, 8) NEWLINE '\\n' (1, 8) (1, 9) NL '\\n' (2, 0) (2, 1) INDENT ' ' (3, 0) (3, 2) NAME 'def' (3, 2) (3, 5) NAME 'baz' (3, 6) (3, 9) OP '(' (3, 9) (3, 10) OP ')' (3, 10) (3, 11) OP ':' (3, 11) (3, 12) NAME 'pass' (3, 13) (3, 17) NEWLINE '\\n' (3, 17) (3, 18) NAME 'async' (4, 2) (4, 7) NAME 'def' (4, 8) (4, 11) NAME 'bar' (4, 12) (4, 15) OP '(' (4, 15) (4, 16) OP ')' (4, 16) (4, 17) OP ':' (4, 17) (4, 18) NAME 'pass' (4, 19) (4, 23) NEWLINE '\\n' (4, 23) (4, 24) NL '\\n' (5, 0) (5, 1) NAME 'await' (6, 2) (6, 7) OP '=' (6, 8) (6, 9) NUMBER '2' (6, 10) (6, 11) DEDENT '' (7, 0) (7, 0) """) self.check_tokenize('''\ async def f(): def baz(): pass async def bar(): pass await = 2''', """\ NAME 'async' (1, 0) (1, 5) NAME 'def' (1, 6) (1, 9) NAME 'f' (1, 10) (1, 11) OP '(' (1, 11) (1, 12) OP ')' (1, 12) (1, 13) OP ':' (1, 13) (1, 14) NEWLINE '\\n' (1, 14) (1, 15) NL '\\n' (2, 0) (2, 1) INDENT ' ' (3, 0) (3, 2) NAME 'def' (3, 2) (3, 5) NAME 'baz' (3, 6) (3, 9) OP '(' (3, 9) (3, 10) OP ')' (3, 10) (3, 11) OP ':' (3, 11) (3, 12) NAME 'pass' (3, 13) (3, 17) NEWLINE '\\n' (3, 17) (3, 18) NAME 'async' (4, 2) (4, 7) NAME 'def' (4, 8) (4, 11) NAME 'bar' (4, 12) (4, 15) OP '(' (4, 15) (4, 16) OP ')' (4, 16) (4, 17) OP ':' (4, 17) (4, 18) NAME 'pass' (4, 19) (4, 23) NEWLINE '\\n' (4, 23) (4, 24) NL '\\n' (5, 0) (5, 1) NAME 'await' (6, 2) (6, 7) OP '=' (6, 8) (6, 9) NUMBER '2' (6, 10) (6, 11) DEDENT '' (7, 0) (7, 0) """) class GenerateTokensTest(TokenizeTest): def check_tokenize(self, s, expected): # Format the tokens in s in a table format. # The ENDMARKER and final NEWLINE are omitted. f = StringIO(s) result = stringify_tokens_from_source(generate_tokens(f.readline), s) self.assertEqual(result, expected.rstrip().splitlines()) def decistmt(s): result = [] g = tokenize(BytesIO(s.encode('utf-8')).readline) # tokenize the string for toknum, tokval, _, _, _ in g: if toknum == NUMBER and '.' in tokval: # replace NUMBER tokens result.extend([ (NAME, 'Decimal'), (OP, '('), (STRING, repr(tokval)), (OP, ')') ]) else: 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): """ Test that tokenizer adheres to the coding behaviour stipulated in PEP 0263. """ def _testFile(self, filename): path = os.path.join(os.path.dirname(__file__), filename) 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._testFile(f) def test_latin1_coding_cookie_and_utf8_bom(self): """ As per PEP 0263, if a file starts with a utf-8 BOM signature, the only allowed encoding for the comment is 'utf-8'. The text file used in this test starts with a BOM signature, but specifies latin1 as the coding, so verify that a SyntaxError is raised, which matches the behaviour of the interpreter when it encounters a similar condition. """ f = 'tokenize_tests-latin1-coding-cookie-and-utf8-bom-sig.txt' self.assertRaises(SyntaxError, self._testFile, f) def test_no_coding_cookie_and_utf8_bom(self): f = 'tokenize_tests-no-coding-cookie-and-utf8-bom-sig-only.txt' self._testFile(f) def test_utf8_coding_cookie_and_utf8_bom(self): f = 'tokenize_tests-utf8-coding-cookie-and-utf8-bom-sig.txt' self._testFile(f) def test_bad_coding_cookie(self): self.assertRaises(SyntaxError, self._testFile, 'bad_coding.py') self.assertRaises(SyntaxError, self._testFile, 'bad_coding2.py') class Test_Tokenize(TestCase): def test__tokenize_decodes_with_specified_encoding(self): literal = '"ЉЊЈЁЂ"' line = literal.encode('utf-8') first = False def readline(): nonlocal first if not first: first = True return line else: return b'' # skip the initial encoding token and the end tokens tokens = list(_tokenize(readline, encoding='utf-8'))[1:-2] expected_tokens = [(3, '"ЉЊЈЁЂ"', (1, 0), (1, 7), '"ЉЊЈЁЂ"')] self.assertEqual(tokens, expected_tokens, "bytes not decoded with encoding") def test__tokenize_does_not_decode_with_encoding_none(self): literal = '"ЉЊЈЁЂ"' first = False def readline(): nonlocal first if not first: first = True return literal else: return b'' # skip the end tokens tokens = list(_tokenize(readline, encoding=None))[:-2] expected_tokens = [(3, '"ЉЊЈЁЂ"', (1, 0), (1, 7), '"ЉЊЈЁЂ"')] self.assertEqual(tokens, expected_tokens, "string not tokenized when encoding is None") class TestDetectEncoding(TestCase): def get_readline(self, lines): index = 0 def readline(): nonlocal index if index == len(lines): raise StopIteration line = lines[index] index += 1 return line return readline def test_no_bom_no_encoding_cookie(self): lines = ( b'# something\n', b'print(something)\n', b'do_something(else)\n' ) encoding, consumed_lines = detect_encoding(self.get_readline(lines)) self.assertEqual(encoding, 'utf-8') self.assertEqual(consumed_lines, list(lines[:2])) def test_bom_no_cookie(self): lines = ( b'\xef\xbb\xbf# something\n', b'print(something)\n', b'do_something(else)\n' ) encoding, consumed_lines = detect_encoding(self.get_readline(lines)) self.assertEqual(encoding, 'utf-8-sig') self.assertEqual(consumed_lines, [b'# something\n', b'print(something)\n']) def test_cookie_first_line_no_bom(self): lines = ( b'# -*- coding: latin-1 -*-\n', b'print(something)\n', b'do_something(else)\n' ) encoding, consumed_lines = detect_encoding(self.get_readline(lines)) self.assertEqual(encoding, 'iso-8859-1') self.assertEqual(consumed_lines, [b'# -*- coding: latin-1 -*-\n']) def test_matched_bom_and_cookie_first_line(self): lines = ( b'\xef\xbb\xbf# coding=utf-8\n', b'print(something)\n', b'do_something(else)\n' ) encoding, consumed_lines = detect_encoding(self.get_readline(lines)) self.assertEqual(encoding, 'utf-8-sig') self.assertEqual(consumed_lines, [b'# coding=utf-8\n']) def test_mismatched_bom_and_cookie_first_line_raises_syntaxerror(self): lines = ( b'\xef\xbb\xbf# vim: set fileencoding=ascii :\n', b'print(something)\n', b'do_something(else)\n' ) readline = self.get_readline(lines) self.assertRaises(SyntaxError, detect_encoding, readline) def test_cookie_second_line_no_bom(self): lines = ( b'#! something\n', b'# vim: set fileencoding=ascii :\n', b'print(something)\n', b'do_something(else)\n' ) encoding, consumed_lines = detect_encoding(self.get_readline(lines)) self.assertEqual(encoding, 'ascii') expected = [b'#! something\n', b'# vim: set fileencoding=ascii :\n'] self.assertEqual(consumed_lines, expected) def test_matched_bom_and_cookie_second_line(self): lines = ( b'\xef\xbb\xbf#! something\n', b'f# coding=utf-8\n', b'print(something)\n', b'do_something(else)\n' ) encoding, consumed_lines = detect_encoding(self.get_readline(lines)) self.assertEqual(encoding, 'utf-8-sig') self.assertEqual(consumed_lines, [b'#! something\n', b'f# coding=utf-8\n']) def test_mismatched_bom_and_cookie_second_line_raises_syntaxerror(self): lines = ( b'\xef\xbb\xbf#! something\n', b'# vim: set fileencoding=ascii :\n', b'print(something)\n', b'do_something(else)\n' ) readline = self.get_readline(lines) self.assertRaises(SyntaxError, detect_encoding, readline) def test_cookie_second_line_noncommented_first_line(self): lines = ( b"print('\xc2\xa3')\n", b'# vim: set fileencoding=iso8859-15 :\n', b"print('\xe2\x82\xac')\n" ) encoding, consumed_lines = detect_encoding(self.get_readline(lines)) self.assertEqual(encoding, 'utf-8') expected = [b"print('\xc2\xa3')\n"] self.assertEqual(consumed_lines, expected) def test_cookie_second_line_commented_first_line(self): lines = ( b"#print('\xc2\xa3')\n", b'# vim: set fileencoding=iso8859-15 :\n', b"print('\xe2\x82\xac')\n" ) encoding, consumed_lines = detect_encoding(self.get_readline(lines)) self.assertEqual(encoding, 'iso8859-15') expected = [b"#print('\xc2\xa3')\n", b'# vim: set fileencoding=iso8859-15 :\n'] self.assertEqual(consumed_lines, expected) def test_cookie_second_line_empty_first_line(self): lines = ( b'\n', b'# vim: set fileencoding=iso8859-15 :\n', b"print('\xe2\x82\xac')\n" ) encoding, consumed_lines = detect_encoding(self.get_readline(lines)) self.assertEqual(encoding, 'iso8859-15') expected = [b'\n', b'# vim: set fileencoding=iso8859-15 :\n'] self.assertEqual(consumed_lines, expected) def test_latin1_normalization(self): # See get_normal_name() in tokenizer.c. encodings = ("latin-1", "iso-8859-1", "iso-latin-1", "latin-1-unix", "iso-8859-1-unix", "iso-latin-1-mac") for encoding in encodings: for rep in ("-", "_"): enc = encoding.replace("-", rep) lines = (b"#!/usr/bin/python\n", b"# coding: " + enc.encode("ascii") + b"\n", b"print(things)\n", b"do_something += 4\n") rl = self.get_readline(lines) found, consumed_lines = detect_encoding(rl) self.assertEqual(found, "iso-8859-1") def test_syntaxerror_latin1(self): # Issue 14629: need to raise SyntaxError if the first # line(s) have non-UTF-8 characters lines = ( b'print("\xdf")', # Latin-1: LATIN SMALL LETTER SHARP S ) readline = self.get_readline(lines) self.assertRaises(SyntaxError, detect_encoding, readline) def test_utf8_normalization(self): # See get_normal_name() in tokenizer.c. encodings = ("utf-8", "utf-8-mac", "utf-8-unix") for encoding in encodings: for rep in ("-", "_"): enc = encoding.replace("-", rep) lines = (b"#!/usr/bin/python\n", b"# coding: " + enc.encode("ascii") + b"\n", b"1 + 3\n") rl = self.get_readline(lines) found, consumed_lines = detect_encoding(rl) self.assertEqual(found, "utf-8") def test_short_files(self): readline = self.get_readline((b'print(something)\n',)) encoding, consumed_lines = detect_encoding(readline) self.assertEqual(encoding, 'utf-8') self.assertEqual(consumed_lines, [b'print(something)\n']) encoding, consumed_lines = detect_encoding(self.get_readline(())) self.assertEqual(encoding, 'utf-8') self.assertEqual(consumed_lines, []) readline = self.get_readline((b'\xef\xbb\xbfprint(something)\n',)) encoding, consumed_lines = detect_encoding(readline) self.assertEqual(encoding, 'utf-8-sig') self.assertEqual(consumed_lines, [b'print(something)\n']) readline = self.get_readline((b'\xef\xbb\xbf',)) encoding, consumed_lines = detect_encoding(readline) self.assertEqual(encoding, 'utf-8-sig') self.assertEqual(consumed_lines, []) readline = self.get_readline((b'# coding: bad\n',)) self.assertRaises(SyntaxError, detect_encoding, readline) def test_false_encoding(self): # Issue 18873: "Encoding" detected in non-comment lines readline = self.get_readline((b'print("#coding=fake")',)) encoding, consumed_lines = detect_encoding(readline) self.assertEqual(encoding, 'utf-8') self.assertEqual(consumed_lines, [b'print("#coding=fake")']) def test_open(self): filename = support.TESTFN + '.py' self.addCleanup(support.unlink, filename) # test coding cookie for encoding in ('iso-8859-15', 'utf-8'): with open(filename, 'w', encoding=encoding) as fp: print("# coding: %s" % encoding, file=fp) print("print('euro:\u20ac')", file=fp) with tokenize_open(filename) as fp: self.assertEqual(fp.encoding, encoding) self.assertEqual(fp.mode, 'r') # test BOM (no coding cookie) with open(filename, 'w', encoding='utf-8-sig') as fp: print("print('euro:\u20ac')", file=fp) with tokenize_open(filename) as fp: self.assertEqual(fp.encoding, 'utf-8-sig') self.assertEqual(fp.mode, 'r') def test_filename_in_exception(self): # When possible, include the file name in the exception. path = 'some_file_path' lines = ( b'print("\xdf")', # Latin-1: LATIN SMALL LETTER SHARP S ) class Bunk: def __init__(self, lines, path): self.name = path self._lines = lines self._index = 0 def readline(self): if self._index == len(lines): raise StopIteration line = lines[self._index] self._index += 1 return line with self.assertRaises(SyntaxError): ins = Bunk(lines, path) # Make sure lacking a name isn't an issue. del ins.name detect_encoding(ins.readline) with self.assertRaisesRegex(SyntaxError, '.*{}'.format(path)): ins = Bunk(lines, path) detect_encoding(ins.readline) def test_open_error(self): # Issue #23840: open() must close the binary file on error m = BytesIO(b'#coding:xxx') with mock.patch('tokenize._builtin_open', return_value=m): self.assertRaises(SyntaxError, tokenize_open, 'foobar') self.assertTrue(m.closed) class TestTokenize(TestCase): def test_tokenize(self): import tokenize as tokenize_module encoding = object() encoding_used = None def mock_detect_encoding(readline): return encoding, [b'first', b'second'] def mock__tokenize(readline, encoding): nonlocal encoding_used encoding_used = encoding out = [] while True: next_line = readline() if next_line: out.append(next_line) continue return out counter = 0 def mock_readline(): nonlocal counter counter += 1 if counter == 5: return b'' return str(counter).encode() orig_detect_encoding = tokenize_module.detect_encoding orig__tokenize = tokenize_module._tokenize tokenize_module.detect_encoding = mock_detect_encoding tokenize_module._tokenize = mock__tokenize try: results = tokenize(mock_readline) self.assertEqual(list(results), [b'first', b'second', b'1', b'2', b'3', b'4']) finally: tokenize_module.detect_encoding = orig_detect_encoding tokenize_module._tokenize = orig__tokenize self.assertEqual(encoding_used, encoding) def test_oneline_defs(self): buf = [] for i in range(500): buf.append('def i{i}(): return {i}'.format(i=i)) buf.append('OK') buf = '\n'.join(buf) # Test that 500 consequent, one-line defs is OK toks = list(tokenize(BytesIO(buf.encode('utf-8')).readline)) self.assertEqual(toks[-3].string, 'OK') # [-1] is always ENDMARKER # [-2] is always NEWLINE def assertExactTypeEqual(self, opstr, *optypes): tokens = list(tokenize(BytesIO(opstr.encode('utf-8')).readline)) num_optypes = len(optypes) self.assertEqual(len(tokens), 3 + num_optypes) self.assertEqual(tok_name[tokens[0].exact_type], tok_name[ENCODING]) for i in range(num_optypes): self.assertEqual(tok_name[tokens[i + 1].exact_type], tok_name[optypes[i]]) self.assertEqual(tok_name[tokens[1 + num_optypes].exact_type], tok_name[token.NEWLINE]) self.assertEqual(tok_name[tokens[2 + num_optypes].exact_type], tok_name[token.ENDMARKER]) def test_exact_type(self): self.assertExactTypeEqual('()', token.LPAR, token.RPAR) self.assertExactTypeEqual('[]', token.LSQB, token.RSQB) self.assertExactTypeEqual(':', token.COLON) self.assertExactTypeEqual(',', token.COMMA) self.assertExactTypeEqual(';', token.SEMI) self.assertExactTypeEqual('+', token.PLUS) self.assertExactTypeEqual('-', token.MINUS) self.assertExactTypeEqual('*', token.STAR) self.assertExactTypeEqual('/', token.SLASH) self.assertExactTypeEqual('|', token.VBAR) self.assertExactTypeEqual('&', token.AMPER) self.assertExactTypeEqual('<', token.LESS) self.assertExactTypeEqual('>', token.GREATER) self.assertExactTypeEqual('=', token.EQUAL) self.assertExactTypeEqual('.', token.DOT) self.assertExactTypeEqual('%', token.PERCENT) self.assertExactTypeEqual('{}', token.LBRACE, token.RBRACE) self.assertExactTypeEqual('==', token.EQEQUAL) self.assertExactTypeEqual('!=', token.NOTEQUAL) self.assertExactTypeEqual('<=', token.LESSEQUAL) self.assertExactTypeEqual('>=', token.GREATEREQUAL) self.assertExactTypeEqual('~', token.TILDE) self.assertExactTypeEqual('^', token.CIRCUMFLEX) self.assertExactTypeEqual('<<', token.LEFTSHIFT) self.assertExactTypeEqual('>>', token.RIGHTSHIFT) self.assertExactTypeEqual('**', token.DOUBLESTAR) self.assertExactTypeEqual('+=', token.PLUSEQUAL) self.assertExactTypeEqual('-=', token.MINEQUAL) self.assertExactTypeEqual('*=', token.STAREQUAL) self.assertExactTypeEqual('/=', token.SLASHEQUAL) self.assertExactTypeEqual('%=', token.PERCENTEQUAL) self.assertExactTypeEqual('&=', token.AMPEREQUAL) self.assertExactTypeEqual('|=', token.VBAREQUAL) self.assertExactTypeEqual('^=', token.CIRCUMFLEXEQUAL) self.assertExactTypeEqual('^=', token.CIRCUMFLEXEQUAL) self.assertExactTypeEqual('<<=', token.LEFTSHIFTEQUAL) self.assertExactTypeEqual('>>=', token.RIGHTSHIFTEQUAL) self.assertExactTypeEqual('**=', token.DOUBLESTAREQUAL) self.assertExactTypeEqual('//', token.DOUBLESLASH) self.assertExactTypeEqual('//=', token.DOUBLESLASHEQUAL) self.assertExactTypeEqual('...', token.ELLIPSIS) self.assertExactTypeEqual('->', token.RARROW) self.assertExactTypeEqual('@', token.AT) self.assertExactTypeEqual('@=', token.ATEQUAL) self.assertExactTypeEqual('a**2+b**2==c**2', NAME, token.DOUBLESTAR, NUMBER, token.PLUS, NAME, token.DOUBLESTAR, NUMBER, token.EQEQUAL, NAME, token.DOUBLESTAR, NUMBER) self.assertExactTypeEqual('{1, 2, 3}', token.LBRACE, token.NUMBER, token.COMMA, token.NUMBER, token.COMMA, token.NUMBER, token.RBRACE) self.assertExactTypeEqual('^(x & 0x1)', token.CIRCUMFLEX, token.LPAR, token.NAME, token.AMPER, token.NUMBER, token.RPAR) def test_pathological_trailing_whitespace(self): # See http://bugs.python.org/issue16152 self.assertExactTypeEqual('@ ', token.AT) class UntokenizeTest(TestCase): def test_bad_input_order(self): # raise if previous row u = Untokenizer() u.prev_row = 2 u.prev_col = 2 with self.assertRaises(ValueError) as cm: u.add_whitespace((1,3)) self.assertEqual(cm.exception.args[0], 'start (1,3) precedes previous end (2,2)') # raise if previous column in row self.assertRaises(ValueError, u.add_whitespace, (2,1)) def test_backslash_continuation(self): # The problem is that <whitespace>\<newline> leaves no token u = Untokenizer() u.prev_row = 1 u.prev_col = 1 u.tokens = [] u.add_whitespace((2, 0)) self.assertEqual(u.tokens, ['\\\n']) u.prev_row = 2 u.add_whitespace((4, 4)) self.assertEqual(u.tokens, ['\\\n', '\\\n\\\n', ' ']) TestRoundtrip.check_roundtrip(self, 'a\n b\n c\n \\\n c\n') def test_iter_compat(self): u = Untokenizer() token = (NAME, 'Hello') tokens = [(ENCODING, 'utf-8'), token] u.compat(token, iter([])) self.assertEqual(u.tokens, ["Hello "]) u = Untokenizer() self.assertEqual(u.untokenize(iter([token])), 'Hello ') u = Untokenizer() self.assertEqual(u.untokenize(iter(tokens)), 'Hello ') self.assertEqual(u.encoding, 'utf-8') self.assertEqual(untokenize(iter(tokens)), b'Hello ') 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\n") # 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_unicode_identifiers.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 support.verbose >= 2: print('tokenize', testfile) 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') return untokenize(tokenize(BytesIO(code).readline)).decode('utf-8') def test_indentation_semantics_retained(self): """ Ensure that although whitespace might be mutated in a roundtrip, the semantic meaning of the indentation remains consistent. """ 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) if __name__ == "__main__": unittest.main()


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