Adding documentation to the README for import errors in vim (#1317)

[etc/vim.git] / tests / test_black.py

diff --git a/tests/test_black.py b/tests/test_black.py
index a0e57dc72d4a14e20b7a24162ed3ee3ec6a6072f..6fb01f73d28c5e962a8b2081c00a0472f5b0cea0 100644 (file)
--- a/tests/test_black.py
+++ b/tests/test_black.py
@@ -82,7 +82,7 @@ def cache_dir(exists: bool = True) -> Iterator[Path]:
 
 
 @contextmanager
-def event_loop(close: bool) -> Iterator[None]:
+def event_loop() -> Iterator[None]:
     policy = asyncio.get_event_loop_policy()
     loop = policy.new_event_loop()
     asyncio.set_event_loop(loop)
@@ -90,8 +90,7 @@ def event_loop(close: bool) -> Iterator[None]:
         yield
 
     finally:
-        if close:
-            loop.close()
+        loop.close()
 
 
 @contextmanager
@@ -157,9 +156,18 @@ class BlackTestCase(unittest.TestCase):
     ) -> None:
         runner = BlackRunner()
         if ignore_config:
-            args = ["--config", str(THIS_DIR / "empty.toml"), *args]
+            args = ["--verbose", "--config", str(THIS_DIR / "empty.toml"), *args]
         result = runner.invoke(black.main, args)
-        self.assertEqual(result.exit_code, exit_code, msg=runner.stderr_bytes.decode())
+        self.assertEqual(
+            result.exit_code,
+            exit_code,
+            msg=(
+                f"Failed with args: {args}\n"
+                f"stdout: {runner.stdout_bytes.decode()!r}\n"
+                f"stderr: {runner.stderr_bytes.decode()!r}\n"
+                f"exception: {result.exception}"
+            ),
+        )
 
     @patch("black.dump_to_file", dump_to_stderr)
     def checkSourceFile(self, name: str) -> None:
@@ -1251,7 +1259,7 @@ class BlackTestCase(unittest.TestCase):
             with src.open("r") as fobj:
                 self.assertEqual(fobj.read(), "print('hello')")
 
-    @event_loop(close=False)
+    @event_loop()
     def test_cache_multiple_files(self) -> None:
         mode = black.FileMode()
         with cache_dir() as workspace, patch(
@@ -1273,27 +1281,6 @@ class BlackTestCase(unittest.TestCase):
             self.assertIn(one, cache)
             self.assertIn(two, cache)
 
-    @patch("black.ProcessPoolExecutor", autospec=True)
-    def test_works_in_mono_process_only_environment(self, mock_executor) -> None:
-        mock_executor.side_effect = OSError()
-        mode = black.FileMode()
-        with cache_dir() as workspace:
-            one = (workspace / "one.py").resolve()
-            with one.open("w") as fobj:
-                fobj.write("print('hello')")
-            two = (workspace / "two.py").resolve()
-            with two.open("w") as fobj:
-                fobj.write("print('hello')")
-            black.write_cache({}, [one], mode)
-            self.invokeBlack([str(workspace)])
-            with one.open("r") as fobj:
-                self.assertEqual(fobj.read(), "print('hello')")
-            with two.open("r") as fobj:
-                self.assertEqual(fobj.read(), 'print("hello")\n')
-            cache = black.read_cache(mode)
-            self.assertIn(one, cache)
-            self.assertIn(two, cache)
-
     def test_no_cache_when_writeback_diff(self) -> None:
         mode = black.FileMode()
         with cache_dir() as workspace:
@@ -1352,7 +1339,7 @@ class BlackTestCase(unittest.TestCase):
             black.write_cache({}, [], mode)
             self.assertTrue(workspace.exists())
 
-    @event_loop(close=False)
+    @event_loop()
     def test_failed_formatting_does_not_get_cached(self) -> None:
         mode = black.FileMode()
         with cache_dir() as workspace, patch(
@@ -1375,7 +1362,18 @@ class BlackTestCase(unittest.TestCase):
             mock.side_effect = OSError
             black.write_cache({}, [], mode)
 
-    @event_loop(close=False)
+    @event_loop()
+    @patch("black.ProcessPoolExecutor", MagicMock(side_effect=OSError))
+    def test_works_in_mono_process_only_environment(self) -> None:
+        with cache_dir() as workspace:
+            for f in [
+                (workspace / "one.py").resolve(),
+                (workspace / "two.py").resolve(),
+            ]:
+                f.write_text('print("hello")\n')
+            self.invokeBlack([str(workspace)])
+
+    @event_loop()
     def test_check_diff_use_together(self) -> None:
         with cache_dir():
             # Files which will be reformatted.
@@ -1438,7 +1436,7 @@ class BlackTestCase(unittest.TestCase):
             self.assertNotIn(path, normal_cache)
         self.assertEqual(actual, expected)
 
-    @event_loop(close=False)
+    @event_loop()
     def test_multi_file_force_pyi(self) -> None:
         reg_mode = black.FileMode()
         pyi_mode = black.FileMode(is_pyi=True)
@@ -1490,7 +1488,7 @@ class BlackTestCase(unittest.TestCase):
             self.assertNotIn(path, normal_cache)
         self.assertEqual(actual, expected)
 
-    @event_loop(close=False)
+    @event_loop()
     def test_multi_file_force_py36(self) -> None:
         reg_mode = black.FileMode()
         py36_mode = black.FileMode(target_versions=black.PY36_VERSIONS)
@@ -1546,8 +1544,8 @@ class BlackTestCase(unittest.TestCase):
         ]
         this_abs = THIS_DIR.resolve()
         sources.extend(
-            black.gen_python_files_in_dir(
-                path, this_abs, include, exclude, report, gitignore
+            black.gen_python_files(
+                path.iterdir(), this_abs, include, [exclude], report, gitignore
             )
         )
         self.assertEqual(sorted(expected), sorted(sources))
@@ -1567,8 +1565,8 @@ class BlackTestCase(unittest.TestCase):
         ]
         this_abs = THIS_DIR.resolve()
         sources.extend(
-            black.gen_python_files_in_dir(
-                path, this_abs, include, exclude, report, gitignore
+            black.gen_python_files(
+                path.iterdir(), this_abs, include, [exclude], report, gitignore
             )
         )
         self.assertEqual(sorted(expected), sorted(sources))
@@ -1592,11 +1590,11 @@ class BlackTestCase(unittest.TestCase):
         ]
         this_abs = THIS_DIR.resolve()
         sources.extend(
-            black.gen_python_files_in_dir(
-                path,
+            black.gen_python_files(
+                path.iterdir(),
                 this_abs,
                 empty,
-                re.compile(black.DEFAULT_EXCLUDES),
+                [re.compile(black.DEFAULT_EXCLUDES)],
                 report,
                 gitignore,
             )
@@ -1619,11 +1617,11 @@ class BlackTestCase(unittest.TestCase):
         ]
         this_abs = THIS_DIR.resolve()
         sources.extend(
-            black.gen_python_files_in_dir(
-                path,
+            black.gen_python_files(
+                path.iterdir(),
                 this_abs,
                 re.compile(black.DEFAULT_INCLUDES),
-                empty,
+                [empty],
                 report,
                 gitignore,
             )
@@ -1679,8 +1677,8 @@ class BlackTestCase(unittest.TestCase):
         child.is_symlink.return_value = True
         try:
             list(
-                black.gen_python_files_in_dir(
-                    path, root, include, exclude, report, gitignore
+                black.gen_python_files(
+                    path.iterdir(), root, include, exclude, report, gitignore
                 )
             )
         except ValueError as ve:
@@ -1693,8 +1691,8 @@ class BlackTestCase(unittest.TestCase):
         child.is_symlink.return_value = False
         with self.assertRaises(ValueError):
             list(
-                black.gen_python_files_in_dir(
-                    path, root, include, exclude, report, gitignore
+                black.gen_python_files(
+                    path.iterdir(), root, include, exclude, report, gitignore
                 )
             )
         path.iterdir.assert_called()