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Rodrigo Araújo committed 69d970a

Fix test_linecache.py. Replace os.path.join(TEST_PATH, entry) to test_support.findfile(entry)

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Files changed (1)

lib-python/modified-2.7.0/test/test_linecache.py

+""" Tests for the linecache module """
+
+import linecache
+import unittest
+import os.path
+from test import test_support as support
+
+
+FILENAME = linecache.__file__
+INVALID_NAME = '!@$)(!@#_1'
+EMPTY = ''
+TESTS = 'cjkencodings_test inspect_fodder inspect_fodder2 mapping_tests'
+TESTS = TESTS.split()
+TEST_PATH = os.path.dirname(support.__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 LineCacheTests(unittest.TestCase):
+
+    def test_getline(self):
+        getline = linecache.getline
+
+        # Bad values for line number should return an empty string
+        self.assertEquals(getline(FILENAME, 2**15), EMPTY)
+        self.assertEquals(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.assertEquals(getline(EMPTY, 1), EMPTY)
+        self.assertEquals(getline(INVALID_NAME, 1), EMPTY)
+
+        # Check whether lines correspond to those from file iteration
+        for entry in TESTS:
+            filename = support.findfile( entry + '.py')
+            for index, line in enumerate(open(filename)):
+                self.assertEquals(line, getline(filename, index + 1))
+
+        # Check module loading
+        for entry in MODULES:
+            filename = support.findfile( entry + '.py')
+            for index, line in enumerate(open(filename)):
+                self.assertEquals(line, getline(filename, index + 1))
+
+        # Check that bogus data isn't returned (issue #1309567)
+        empty = linecache.getlines('a/b/c/__init__.py')
+        self.assertEquals(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 TESTS:
+            filename = support.findfile( entry + '.py')
+            cached.append(filename)
+            linecache.getline(filename, 1)
+
+        # Are all files cached?
+        cached_empty = [fn for fn in cached if fn not in linecache.cache]
+        self.assertEquals(cached_empty, [])
+
+        # Can we clear the cache?
+        linecache.clearcache()
+        cached_empty = [fn for fn in cached if fn in linecache.cache]
+        self.assertEquals(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.assertEquals(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.assertEquals(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.assertEquals(line, getline(source_name, index + 1))
+                source_list.append(line)
+
+def test_main():
+    support.run_unittest(LineCacheTests)
+
+if __name__ == "__main__":
+    test_main()