fix: allow tests to be run from (hopefully) any directory (GH-2574)

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

diff --git a/tests/test_black.py b/tests/test_black.py
index f25db1b73d1ef9b102cce37ae1c89fe3566efbb4..5647a00e48ba99a38184f180faa3ee578c8efc02 100644 (file)
--- a/tests/test_black.py
+++ b/tests/test_black.py
@@ -50,6 +50,7 @@ from tests.util import (
     DATA_DIR,
     DEFAULT_MODE,
     DETERMINISTIC_HEADER,
+    PROJECT_ROOT,
     PY36_VERSIONS,
     THIS_DIR,
     BlackBaseTestCase,
@@ -805,6 +806,10 @@ class BlackTestCase(BlackBaseTestCase):
         self.assertEqual(black.get_features_used(node), set())
         node = black.lib2to3_parse(expected)
         self.assertEqual(black.get_features_used(node), set())
+        node = black.lib2to3_parse("lambda a, /, b: ...")
+        self.assertEqual(black.get_features_used(node), {Feature.POS_ONLY_ARGUMENTS})
+        node = black.lib2to3_parse("def fn(a, /, b): ...")
+        self.assertEqual(black.get_features_used(node), {Feature.POS_ONLY_ARGUMENTS})
 
     def test_get_future_imports(self) -> None:
         node = black.lib2to3_parse("\n")
@@ -1508,9 +1513,11 @@ class BlackTestCase(BlackBaseTestCase):
         """
         with patch.object(black, "parse_pyproject_toml", return_value={}) as parse:
             args = ["--code", "print"]
-            CliRunner().invoke(black.main, args)
+            # This is the only directory known to contain a pyproject.toml
+            with change_directory(PROJECT_ROOT):
+                CliRunner().invoke(black.main, args)
+                pyproject_path = Path(Path.cwd(), "pyproject.toml").resolve()
 
-            pyproject_path = Path(Path().cwd(), "pyproject.toml").resolve()
             assert (
                 len(parse.mock_calls) >= 1
             ), "Expected config parse to be called with the current directory."
@@ -1525,7 +1532,7 @@ class BlackTestCase(BlackBaseTestCase):
         Test that the code option finds the pyproject.toml in the parent directory.
         """
         with patch.object(black, "parse_pyproject_toml", return_value={}) as parse:
-            with change_directory(Path("tests")):
+            with change_directory(THIS_DIR):
                 args = ["--code", "print"]
                 CliRunner().invoke(black.main, args)
 
@@ -2014,7 +2021,9 @@ with open(black.__file__, "r", encoding="utf-8") as _bf:
     black_source_lines = _bf.readlines()
 
 
-def tracefunc(frame: types.FrameType, event: str, arg: Any) -> Callable:
+def tracefunc(
+    frame: types.FrameType, event: str, arg: Any
+) -> Callable[[types.FrameType, str, Any], Any]:
     """Show function calls `from black/__init__.py` as they happen.
 
     Register this with `sys.settrace()` in a test you're debugging.