Add coverage

tools/telemetry/third_party/coverage/tests/test_misc.py

+# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0
+# For details: https://bitbucket.org/ned/coveragepy/src/default/NOTICE.txt
+
+"""Tests of miscellaneous stuff."""
+
+import sys
+
+import coverage
+from coverage.version import _make_url, _make_version
+from coverage.misc import Hasher, file_be_gone
+
+from tests.coveragetest import CoverageTest
+
+
+class HasherTest(CoverageTest):
+    """Test our wrapper of md5 hashing."""
+
+    run_in_temp_dir = False
+
+    def test_string_hashing(self):
+        h1 = Hasher()
+        h1.update("Hello, world!")
+        h2 = Hasher()
+        h2.update("Goodbye!")
+        h3 = Hasher()
+        h3.update("Hello, world!")
+        self.assertNotEqual(h1.hexdigest(), h2.hexdigest())
+        self.assertEqual(h1.hexdigest(), h3.hexdigest())
+
+    def test_bytes_hashing(self):
+        h1 = Hasher()
+        h1.update(b"Hello, world!")
+        h2 = Hasher()
+        h2.update(b"Goodbye!")
+        self.assertNotEqual(h1.hexdigest(), h2.hexdigest())
+
+    def test_dict_hashing(self):
+        h1 = Hasher()
+        h1.update({'a': 17, 'b': 23})
+        h2 = Hasher()
+        h2.update({'b': 23, 'a': 17})
+        self.assertEqual(h1.hexdigest(), h2.hexdigest())
+
+
+class RemoveFileTest(CoverageTest):
+    """Tests of misc.file_be_gone."""
+
+    def test_remove_nonexistent_file(self):
+        # It's OK to try to remove a file that doesn't exist.
+        file_be_gone("not_here.txt")
+
+    def test_remove_actual_file(self):
+        # It really does remove a file that does exist.
+        self.make_file("here.txt", "We are here, we are here, we are here!")
+        file_be_gone("here.txt")
+        self.assert_doesnt_exist("here.txt")
+
+    def test_actual_errors(self):
+        # Errors can still happen.
+        # ". is a directory" on Unix, or "Access denied" on Windows
+        with self.assertRaises(OSError):
+            file_be_gone(".")
+
+
+class VersionTest(CoverageTest):
+    """Tests of version.py"""
+
+    run_in_temp_dir = False
+
+    def test_version_info(self):
+        # Make sure we didn't screw up the version_info tuple.
+        self.assertIsInstance(coverage.version_info, tuple)
+        self.assertEqual([type(d) for d in coverage.version_info], [int, int, int, str, int])
+        self.assertIn(coverage.version_info[3], ['alpha', 'beta', 'candidate', 'final'])
+
+    def test_make_version(self):
+        self.assertEqual(_make_version(4, 0, 0, 'alpha', 0), "4.0a0")
+        self.assertEqual(_make_version(4, 0, 0, 'alpha', 1), "4.0a1")
+        self.assertEqual(_make_version(4, 0, 0, 'final', 0), "4.0")
+        self.assertEqual(_make_version(4, 1, 2, 'beta', 3), "4.1.2b3")
+        self.assertEqual(_make_version(4, 1, 2, 'final', 0), "4.1.2")
+        self.assertEqual(_make_version(5, 10, 2, 'candidate', 7), "5.10.2rc7")
+
+    def test_make_url(self):
+        self.assertEqual(
+            _make_url(4, 0, 0, 'final', 0),
+            "https://coverage.readthedocs.org"
+        )
+        self.assertEqual(
+            _make_url(4, 1, 2, 'beta', 3),
+            "https://coverage.readthedocs.org/en/coverage-4.1.2b3"
+        )
+
+
+class SetupPyTest(CoverageTest):
+    """Tests of setup.py"""
+
+    run_in_temp_dir = False
+
+    def test_metadata(self):
+        status, output = self.run_command_status(
+            "python setup.py --description --version --url --author"
+            )
+        self.assertEqual(status, 0)
+        out = output.splitlines()
+        self.assertIn("measurement", out[0])
+        self.assertEqual(out[1], coverage.__version__)
+        self.assertEqual(out[2], coverage.__url__)
+        self.assertIn("Ned Batchelder", out[3])
+
+    def test_more_metadata(self):
+        # Let's be sure we pick up our own setup.py
+        # CoverageTest restores the original sys.path for us.
+        sys.path.insert(0, '')
+        from setup import setup_args
+
+        classifiers = setup_args['classifiers']
+        self.assertGreater(len(classifiers), 7)
+        self.assert_starts_with(classifiers[-1], "Development Status ::")
+
+        long_description = setup_args['long_description'].splitlines()
+        self.assertGreater(len(long_description), 7)
+        self.assertNotEqual(long_description[0].strip(), "")
+        self.assertNotEqual(long_description[-1].strip(), "")