Remove flake8 W503 from docs as it is ignored by default (#1661)

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

diff --git a/tests/test_black.py b/tests/test_black.py
index 7793b0e11317edf1e6a39d4f991a110dc6af99f7..bc80c8fca8b20c8f67b4384d722be1a84764b762 100644 (file)
--- a/tests/test_black.py
+++ b/tests/test_black.py
@@ -9,6 +9,7 @@ import inspect
 from io import BytesIO, TextIOWrapper
 import os
 from pathlib import Path
+from platform import system
 import regex as re
 import sys
 from tempfile import TemporaryDirectory
@@ -346,11 +347,16 @@ class BlackTestCase(unittest.TestCase):
         black.assert_stable(source, actual, DEFAULT_MODE)
 
     @patch("black.dump_to_file", dump_to_stderr)
-    def test_function_trailing_comma_wip(self) -> None:
-        source, expected = read_data("function_trailing_comma_wip")
-        # sys.settrace(tracefunc)
-        actual = fs(source)
-        # sys.settrace(None)
+    def _test_wip(self) -> None:
+        source, expected = read_data("wip")
+        sys.settrace(tracefunc)
+        mode = replace(
+            DEFAULT_MODE,
+            experimental_string_processing=False,
+            target_versions={black.TargetVersion.PY38},
+        )
+        actual = fs(source, mode=mode)
+        sys.settrace(None)
         self.assertFormatEqual(expected, actual)
         black.assert_equivalent(source, actual)
         black.assert_stable(source, actual, black.FileMode())
@@ -363,6 +369,27 @@ class BlackTestCase(unittest.TestCase):
         black.assert_equivalent(source, actual)
         black.assert_stable(source, actual, DEFAULT_MODE)
 
+    @unittest.expectedFailure
+    @patch("black.dump_to_file", dump_to_stderr)
+    def test_trailing_comma_optional_parens_stability1(self) -> None:
+        source, _expected = read_data("trailing_comma_optional_parens1")
+        actual = fs(source)
+        black.assert_stable(source, actual, DEFAULT_MODE)
+
+    @unittest.expectedFailure
+    @patch("black.dump_to_file", dump_to_stderr)
+    def test_trailing_comma_optional_parens_stability2(self) -> None:
+        source, _expected = read_data("trailing_comma_optional_parens2")
+        actual = fs(source)
+        black.assert_stable(source, actual, DEFAULT_MODE)
+
+    @unittest.expectedFailure
+    @patch("black.dump_to_file", dump_to_stderr)
+    def test_trailing_comma_optional_parens_stability3(self) -> None:
+        source, _expected = read_data("trailing_comma_optional_parens3")
+        actual = fs(source)
+        black.assert_stable(source, actual, DEFAULT_MODE)
+
     @patch("black.dump_to_file", dump_to_stderr)
     def test_expression(self) -> None:
         source, expected = read_data("expression")
@@ -492,6 +519,16 @@ class BlackTestCase(unittest.TestCase):
         black.assert_equivalent(source, actual)
         black.assert_stable(source, actual, DEFAULT_MODE)
 
+    @patch("black.dump_to_file", dump_to_stderr)
+    def test_docstring_no_string_normalization(self) -> None:
+        """Like test_docstring but with string normalization off."""
+        source, expected = read_data("docstring_no_string_normalization")
+        mode = replace(DEFAULT_MODE, string_normalization=False)
+        actual = fs(source, mode=mode)
+        self.assertFormatEqual(expected, actual)
+        black.assert_equivalent(source, actual)
+        black.assert_stable(source, actual, mode)
+
     def test_long_strings(self) -> None:
         """Tests for splitting long strings."""
         source, expected = read_data("long_strings")
@@ -593,7 +630,8 @@ class BlackTestCase(unittest.TestCase):
     @patch("black.dump_to_file", dump_to_stderr)
     def test_comments7(self) -> None:
         source, expected = read_data("comments7")
-        actual = fs(source)
+        mode = replace(DEFAULT_MODE, target_versions={black.TargetVersion.PY38})
+        actual = fs(source, mode=mode)
         self.assertFormatEqual(expected, actual)
         black.assert_equivalent(source, actual)
         black.assert_stable(source, actual, DEFAULT_MODE)
@@ -630,6 +668,15 @@ class BlackTestCase(unittest.TestCase):
         black.assert_equivalent(source, actual)
         black.assert_stable(source, actual, DEFAULT_MODE)
 
+    @patch("black.dump_to_file", dump_to_stderr)
+    def test_composition_no_trailing_comma(self) -> None:
+        source, expected = read_data("composition_no_trailing_comma")
+        mode = replace(DEFAULT_MODE, target_versions={black.TargetVersion.PY38})
+        actual = fs(source, mode=mode)
+        self.assertFormatEqual(expected, actual)
+        black.assert_equivalent(source, actual)
+        black.assert_stable(source, actual, DEFAULT_MODE)
+
     @patch("black.dump_to_file", dump_to_stderr)
     def test_empty_lines(self) -> None:
         source, expected = read_data("empty_lines")
@@ -1893,6 +1940,23 @@ class BlackTestCase(unittest.TestCase):
             self.assertEqual(black.find_project_root((src_dir,)), src_dir.resolve())
             self.assertEqual(black.find_project_root((src_python,)), src_dir.resolve())
 
+    def test_bpo_33660_workaround(self) -> None:
+        if system() == "Windows":
+            return
+
+        # https://bugs.python.org/issue33660
+
+        old_cwd = Path.cwd()
+        try:
+            root = Path("/")
+            os.chdir(str(root))
+            path = Path("workspace") / "project"
+            report = black.Report(verbose=True)
+            normalized_path = black.normalize_path_maybe_ignore(path, root, report)
+            self.assertEqual(normalized_path, "workspace/project")
+        finally:
+            os.chdir(str(old_cwd))
+
 
 class BlackDTestCase(AioHTTPTestCase):
     async def get_application(self) -> web.Application:
@@ -2062,7 +2126,7 @@ class BlackDTestCase(AioHTTPTestCase):
         self.assertIsNotNone(response.headers.get(blackd.BLACK_VERSION_HEADER))
 
 
-with open(black.__file__, "r") as _bf:
+with open(black.__file__, "r", encoding="utf-8") as _bf:
     black_source_lines = _bf.readlines()
 
 
@@ -2075,6 +2139,7 @@ def tracefunc(frame: types.FrameType, event: str, arg: Any) -> Callable:
         return tracefunc
 
     stack = len(inspect.stack()) - 19
+    stack *= 2
     filename = frame.f_code.co_filename
     lineno = frame.f_lineno
     func_sig_lineno = lineno - 1