python-3.6.zip added from Github

README.cosmo contains the necessary links.

third_party/python/Lib/test/test_linecache.py

@@ -0,0 +1,242 @@
+""" 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('<foo>', 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)
+
+
+if __name__ == "__main__":
+    unittest.main()