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Þ'¯°ÌME[YéïĵÂCå½ Ué©Áû'Ê9%eÔðNU”ë‘ÌsD3/®+UI˜9h.WC”빓$#:pz:YÓ ¿xž* ³$Í +$kñAŠ‹†¢ Uê>¸)_š¬÷©ßAÂÔb9ÇU ¯¾á•9¯ÏÏ÷O÷¼¼Fähal1‰3Ì[Ïr•´UCksNÐ] R‘¸¥H+§Šé†c©vÖÞ0iÓ76s†î!§=ß ¼~Ô'°Ãmäoäš³ªøi1úÉ)³yV8 CLÄØÁ‘WYïi€H6ÖÑiámø^ÈY´°Ñ7¥Û*—Ñ©L«Qƒï—Ùrÿ ›£Ð*š¸ˆL©ˆ$ˆ ÷¾D§9È®«qbqC)–ˆïv´çñsÑVT­Ø, <àïºÀO«Jý·õ àfPìð .wFšir´þ’2_Y *Æ€x\« ì€9š@ Ž|F⇥ˆkZ@hÖÄ0t¿-<“‹qµ¾*ZL¤Ú)&BJpÓF5=$„at*Zš$’ÑtdûÝRI1 2Ž‰$€$I$#‰SÞ’Hë¬ï;Á$¡t$’`<(ñÇt)$‡Ð.Êf¢X’Kt=Éé$‚ˆªè¢oÝëòI%Rgcª÷ŠyI%¡‰ÿ !ñ)´õ $¤ Ô’IIGÿÙ""" Tests for the linecache module """ import linecache import unittest import os.path import tempfile import tokenize from test import support FILENAME = linecache.__file__ NONEXISTENT_FILENAME = FILENAME + '.missing' INVALID_NAME = '!@$)(!@#_1' EMPTY = '' TEST_PATH = os.path.dirname(__file__) MODULES = "linecache abc".split() MODULE_PATH = os.path.dirname(FILENAME) SOURCE_1 = ''' " Docstring " def function(): return result ''' SOURCE_2 = ''' def f(): return 1 + 1 a = f() ''' SOURCE_3 = ''' def f(): return 3''' # No ending newline class TempFile: def setUp(self): super().setUp() with tempfile.NamedTemporaryFile(delete=False) as fp: self.file_name = fp.name fp.write(self.file_byte_string) self.addCleanup(support.unlink, self.file_name) class GetLineTestsGoodData(TempFile): # file_list = ['list\n', 'of\n', 'good\n', 'strings\n'] def setUp(self): self.file_byte_string = ''.join(self.file_list).encode('utf-8') super().setUp() def test_getline(self): with tokenize.open(self.file_name) as fp: for index, line in enumerate(fp): if not line.endswith('\n'): line += '\n' cached_line = linecache.getline(self.file_name, index + 1) self.assertEqual(line, cached_line) def test_getlines(self): lines = linecache.getlines(self.file_name) self.assertEqual(lines, self.file_list) class GetLineTestsBadData(TempFile): # file_byte_string = b'Bad data goes here' def test_getline(self): self.assertRaises((SyntaxError, UnicodeDecodeError), linecache.getline, self.file_name, 1) def test_getlines(self): self.assertRaises((SyntaxError, UnicodeDecodeError), linecache.getlines, self.file_name) class EmptyFile(GetLineTestsGoodData, unittest.TestCase): file_list = [] class SingleEmptyLine(GetLineTestsGoodData, unittest.TestCase): file_list = ['\n'] class GoodUnicode(GetLineTestsGoodData, unittest.TestCase): file_list = ['á\n', 'b\n', 'abcdef\n', 'ááááá\n'] class BadUnicode(GetLineTestsBadData, unittest.TestCase): file_byte_string = b'\x80abc' class LineCacheTests(unittest.TestCase): def test_getline(self): getline = linecache.getline # Bad values for line number should return an empty string self.assertEqual(getline(FILENAME, 2**15), EMPTY) self.assertEqual(getline(FILENAME, -1), EMPTY) # Float values currently raise TypeError, should it? self.assertRaises(TypeError, getline, FILENAME, 1.1) # Bad filenames should return an empty string self.assertEqual(getline(EMPTY, 1), EMPTY) self.assertEqual(getline(INVALID_NAME, 1), EMPTY) # Check module loading for entry in MODULES: filename = os.path.join(MODULE_PATH, entry) + '.py' with open(filename) as file: for index, line in enumerate(file): self.assertEqual(line, getline(filename, index + 1)) # Check that bogus data isn't returned (issue #1309567) empty = linecache.getlines('a/b/c/__init__.py') self.assertEqual(empty, []) def test_no_ending_newline(self): self.addCleanup(support.unlink, support.TESTFN) with open(support.TESTFN, "w") as fp: fp.write(SOURCE_3) lines = linecache.getlines(support.TESTFN) self.assertEqual(lines, ["\n", "def f():\n", " return 3\n"]) def test_clearcache(self): cached = [] for entry in MODULES: filename = os.path.join(MODULE_PATH, entry) + '.py' cached.append(filename) linecache.getline(filename, 1) # Are all files cached? self.assertNotEqual(cached, []) cached_empty = [fn for fn in cached if fn not in linecache.cache] self.assertEqual(cached_empty, []) # Can we clear the cache? linecache.clearcache() cached_empty = [fn for fn in cached if fn in linecache.cache] self.assertEqual(cached_empty, []) def test_checkcache(self): getline = linecache.getline # Create a source file and cache its contents source_name = support.TESTFN + '.py' self.addCleanup(support.unlink, source_name) with open(source_name, 'w') as source: source.write(SOURCE_1) getline(source_name, 1) # Keep a copy of the old contents source_list = [] with open(source_name) as source: for index, line in enumerate(source): self.assertEqual(line, getline(source_name, index + 1)) source_list.append(line) with open(source_name, 'w') as source: source.write(SOURCE_2) # Try to update a bogus cache entry linecache.checkcache('dummy') # Check that the cache matches the old contents for index, line in enumerate(source_list): self.assertEqual(line, getline(source_name, index + 1)) # Update the cache and check whether it matches the new source file linecache.checkcache(source_name) with open(source_name) as source: for index, line in enumerate(source): self.assertEqual(line, getline(source_name, index + 1)) source_list.append(line) def test_lazycache_no_globals(self): lines = linecache.getlines(FILENAME) linecache.clearcache() self.assertEqual(False, linecache.lazycache(FILENAME, None)) self.assertEqual(lines, linecache.getlines(FILENAME)) def test_lazycache_smoke(self): lines = linecache.getlines(NONEXISTENT_FILENAME, globals()) linecache.clearcache() self.assertEqual( True, linecache.lazycache(NONEXISTENT_FILENAME, globals())) self.assertEqual(1, len(linecache.cache[NONEXISTENT_FILENAME])) # Note here that we're looking up a nonexistent filename with no # globals: this would error if the lazy value wasn't resolved. self.assertEqual(lines, linecache.getlines(NONEXISTENT_FILENAME)) def test_lazycache_provide_after_failed_lookup(self): linecache.clearcache() lines = linecache.getlines(NONEXISTENT_FILENAME, globals()) linecache.clearcache() linecache.getlines(NONEXISTENT_FILENAME) linecache.lazycache(NONEXISTENT_FILENAME, globals()) self.assertEqual(lines, linecache.updatecache(NONEXISTENT_FILENAME)) def test_lazycache_check(self): linecache.clearcache() linecache.lazycache(NONEXISTENT_FILENAME, globals()) linecache.checkcache() def test_lazycache_bad_filename(self): linecache.clearcache() self.assertEqual(False, linecache.lazycache('', globals())) self.assertEqual(False, linecache.lazycache('', globals())) def test_lazycache_already_cached(self): linecache.clearcache() lines = linecache.getlines(NONEXISTENT_FILENAME, globals()) self.assertEqual( False, linecache.lazycache(NONEXISTENT_FILENAME, globals())) self.assertEqual(4, len(linecache.cache[NONEXISTENT_FILENAME])) def test_memoryerror(self): lines = linecache.getlines(FILENAME) self.assertTrue(lines) def raise_memoryerror(*args, **kwargs): raise MemoryError with support.swap_attr(linecache, 'updatecache', raise_memoryerror): lines2 = linecache.getlines(FILENAME) self.assertEqual(lines2, lines) linecache.clearcache() with support.swap_attr(linecache, 'updatecache', raise_memoryerror): lines3 = linecache.getlines(FILENAME) self.assertEqual(lines3, []) self.assertEqual(linecache.getlines(FILENAME), lines) class LineCacheInvalidationTests(unittest.TestCase): def setUp(self): super().setUp() linecache.clearcache() self.deleted_file = support.TESTFN + '.1' self.modified_file = support.TESTFN + '.2' self.unchanged_file = support.TESTFN + '.3' for fname in (self.deleted_file, self.modified_file, self.unchanged_file): self.addCleanup(support.unlink, fname) with open(fname, 'w', encoding='utf-8') as source: source.write(f'print("I am {fname}")') self.assertNotIn(fname, linecache.cache) linecache.getlines(fname) self.assertIn(fname, linecache.cache) os.remove(self.deleted_file) with open(self.modified_file, 'w', encoding='utf-8') as source: source.write('print("was modified")') def test_checkcache_for_deleted_file(self): linecache.checkcache(self.deleted_file) self.assertNotIn(self.deleted_file, linecache.cache) self.assertIn(self.modified_file, linecache.cache) self.assertIn(self.unchanged_file, linecache.cache) def test_checkcache_for_modified_file(self): linecache.checkcache(self.modified_file) self.assertIn(self.deleted_file, linecache.cache) self.assertNotIn(self.modified_file, linecache.cache) self.assertIn(self.unchanged_file, linecache.cache) def test_checkcache_with_no_parameter(self): linecache.checkcache() self.assertNotIn(self.deleted_file, linecache.cache) self.assertNotIn(self.modified_file, linecache.cache) self.assertIn(self.unchanged_file, linecache.cache) if __name__ == "__main__": unittest.main()