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docs: adds ExitStack alternative to future_style.md (#3247)
[etc/vim.git] / tests / test_black.py
diff --git a/tests/test_black.py b/tests/test_black.py
index a633e678dd700d70f17ad622bd21cb0cc602ade0..abd4d00b8e86ab128dcf16e38a8fcfbd054adfb1 100644 (file)
--- a/tests/test_black.py
+++ b/tests/test_black.py
@@ -6,6 +6,7 @@ import io
 import logging
 import multiprocessing
 import os
 import logging
 import multiprocessing
 import os
+import re
 import sys
 import types
 import unittest
 import sys
 import types
 import unittest
@@ -31,7 +32,6 @@ from unittest.mock import MagicMock, patch
 
 import click
 import pytest
 
 import click
 import pytest
-import re
 from click import unstyle
 from click.testing import CliRunner
 from pathspec import PathSpec
 from click import unstyle
 from click.testing import CliRunner
 from pathspec import PathSpec
@@ -59,8 +59,8 @@ from tests.util import (
     dump_to_stderr,
     ff,
     fs,
     dump_to_stderr,
     ff,
     fs,
-    read_data,
     get_case_path,
     get_case_path,
+    read_data,
     read_data_from_file,
 )
 
     read_data_from_file,
 )
 
@@ -310,6 +310,26 @@ class BlackTestCase(BlackBaseTestCase):
         versions = black.detect_target_versions(root)
         self.assertIn(black.TargetVersion.PY38, versions)
 
         versions = black.detect_target_versions(root)
         self.assertIn(black.TargetVersion.PY38, versions)
 
+    def test_detect_debug_f_strings(self) -> None:
+        root = black.lib2to3_parse("""f"{x=}" """)
+        features = black.get_features_used(root)
+        self.assertIn(black.Feature.DEBUG_F_STRINGS, features)
+        versions = black.detect_target_versions(root)
+        self.assertIn(black.TargetVersion.PY38, versions)
+
+        root = black.lib2to3_parse(
+            """f"{x}"\nf'{"="}'\nf'{(x:=5)}'\nf'{f(a="3=")}'\nf'{x:=10}'\n"""
+        )
+        features = black.get_features_used(root)
+        self.assertNotIn(black.Feature.DEBUG_F_STRINGS, features)
+
+        # We don't yet support feature version detection in nested f-strings
+        root = black.lib2to3_parse(
+            """f"heard a rumour that { f'{1+1=}' } ... seems like it could be true" """
+        )
+        features = black.get_features_used(root)
+        self.assertNotIn(black.Feature.DEBUG_F_STRINGS, features)
+
     @patch("black.dump_to_file", dump_to_stderr)
     def test_string_quotes(self) -> None:
         source, expected = read_data("miscellaneous", "string_quotes")
     @patch("black.dump_to_file", dump_to_stderr)
     def test_string_quotes(self) -> None:
         source, expected = read_data("miscellaneous", "string_quotes")
@@ -493,15 +513,15 @@ class BlackTestCase(BlackBaseTestCase):
             report.check = True
             self.assertEqual(
                 unstyle(str(report)),
             report.check = True
             self.assertEqual(
                 unstyle(str(report)),
-                "2 files would be reformatted, 3 files would be left unchanged, 2 files"
-                " would fail to reformat.",
+                "2 files would be reformatted, 3 files would be left unchanged, 2"
+                " files would fail to reformat.",
             )
             report.check = False
             report.diff = True
             self.assertEqual(
                 unstyle(str(report)),
             )
             report.check = False
             report.diff = True
             self.assertEqual(
                 unstyle(str(report)),
-                "2 files would be reformatted, 3 files would be left unchanged, 2 files"
-                " would fail to reformat.",
+                "2 files would be reformatted, 3 files would be left unchanged, 2"
+                " files would fail to reformat.",
             )
 
     def test_report_quiet(self) -> None:
             )
 
     def test_report_quiet(self) -> None:
@@ -587,15 +607,15 @@ class BlackTestCase(BlackBaseTestCase):
             report.check = True
             self.assertEqual(
                 unstyle(str(report)),
             report.check = True
             self.assertEqual(
                 unstyle(str(report)),
-                "2 files would be reformatted, 3 files would be left unchanged, 2 files"
-                " would fail to reformat.",
+                "2 files would be reformatted, 3 files would be left unchanged, 2"
+                " files would fail to reformat.",
             )
             report.check = False
             report.diff = True
             self.assertEqual(
                 unstyle(str(report)),
             )
             report.check = False
             report.diff = True
             self.assertEqual(
                 unstyle(str(report)),
-                "2 files would be reformatted, 3 files would be left unchanged, 2 files"
-                " would fail to reformat.",
+                "2 files would be reformatted, 3 files would be left unchanged, 2"
+                " files would fail to reformat.",
             )
 
     def test_report_normal(self) -> None:
             )
 
     def test_report_normal(self) -> None:
@@ -684,15 +704,15 @@ class BlackTestCase(BlackBaseTestCase):
             report.check = True
             self.assertEqual(
                 unstyle(str(report)),
             report.check = True
             self.assertEqual(
                 unstyle(str(report)),
-                "2 files would be reformatted, 3 files would be left unchanged, 2 files"
-                " would fail to reformat.",
+                "2 files would be reformatted, 3 files would be left unchanged, 2"
+                " files would fail to reformat.",
             )
             report.check = False
             report.diff = True
             self.assertEqual(
                 unstyle(str(report)),
             )
             report.check = False
             report.diff = True
             self.assertEqual(
                 unstyle(str(report)),
-                "2 files would be reformatted, 3 files would be left unchanged, 2 files"
-                " would fail to reformat.",
+                "2 files would be reformatted, 3 files would be left unchanged, 2"
+                " files would fail to reformat.",
             )
 
     def test_lib2to3_parse(self) -> None:
             )
 
     def test_lib2to3_parse(self) -> None:
@@ -804,6 +824,12 @@ class BlackTestCase(BlackBaseTestCase):
         self.assertEqual(black.get_features_used(node), set())
         node = black.lib2to3_parse("try: pass\nexcept *Group: pass")
         self.assertEqual(black.get_features_used(node), {Feature.EXCEPT_STAR})
         self.assertEqual(black.get_features_used(node), set())
         node = black.lib2to3_parse("try: pass\nexcept *Group: pass")
         self.assertEqual(black.get_features_used(node), {Feature.EXCEPT_STAR})
+        node = black.lib2to3_parse("a[*b]")
+        self.assertEqual(black.get_features_used(node), {Feature.VARIADIC_GENERICS})
+        node = black.lib2to3_parse("a[x, *y(), z] = t")
+        self.assertEqual(black.get_features_used(node), {Feature.VARIADIC_GENERICS})
+        node = black.lib2to3_parse("def fn(*args: *T): pass")
+        self.assertEqual(black.get_features_used(node), {Feature.VARIADIC_GENERICS})
 
     def test_get_features_used_for_future_flags(self) -> None:
         for src, features in [
 
     def test_get_features_used_for_future_flags(self) -> None:
         for src, features in [
@@ -1370,6 +1396,12 @@ class BlackTestCase(BlackBaseTestCase):
                 (src_dir.resolve(), "pyproject.toml"),
             )
 
                 (src_dir.resolve(), "pyproject.toml"),
             )
 
+            with change_directory(test_dir):
+                self.assertEqual(
+                    black.find_project_root(("-",), stdin_filename="../src/a.py"),
+                    (src_dir.resolve(), "pyproject.toml"),
+                )
+
     @patch(
         "black.files.find_user_pyproject_toml",
     )
     @patch(
         "black.files.find_user_pyproject_toml",
     )
@@ -1455,7 +1487,6 @@ class BlackTestCase(BlackBaseTestCase):
         black.assert_stable(source, output, mode=DEFAULT_MODE)
 
     def test_bpo_2142_workaround(self) -> None:
         black.assert_stable(source, output, mode=DEFAULT_MODE)
 
     def test_bpo_2142_workaround(self) -> None:
-
         # https://bugs.python.org/issue2142
 
         source, _ = read_data("miscellaneous", "missing_final_newline")
         # https://bugs.python.org/issue2142
 
         source, _ = read_data("miscellaneous", "missing_final_newline")
@@ -1732,7 +1763,9 @@ class TestCaching:
                 src = (workspace / f"test{tag}.py").resolve()
                 with src.open("w") as fobj:
                     fobj.write("print('hello')")
                 src = (workspace / f"test{tag}.py").resolve()
                 with src.open("w") as fobj:
                     fobj.write("print('hello')")
-            with patch("black.Manager", wraps=multiprocessing.Manager) as mgr:
+            with patch(
+                "black.concurrency.Manager", wraps=multiprocessing.Manager
+            ) as mgr:
                 cmd = ["--diff", str(workspace)]
                 if color:
                     cmd.append("--color")
                 cmd = ["--diff", str(workspace)]
                 if color:
                     cmd.append("--color")
@@ -1779,7 +1812,7 @@ class TestCaching:
                 str(cached): black.get_cache_info(cached),
                 str(cached_but_changed): (0.0, 0),
             }
                 str(cached): black.get_cache_info(cached),
                 str(cached_but_changed): (0.0, 0),
             }
-            todo, done = black.filter_cached(
+            todo, done = black.cache.filter_cached(
                 cache, {uncached, cached, cached_but_changed}
             )
             assert todo == {uncached, cached_but_changed}
                 cache, {uncached, cached, cached_but_changed}
             )
             assert todo == {uncached, cached_but_changed}
@@ -1957,6 +1990,13 @@ class TestFileCollection:
         )
         assert sorted(expected) == sorted(sources)
 
         )
         assert sorted(expected) == sorted(sources)
 
+    def test_nested_gitignore_directly_in_source_directory(self) -> None:
+        # https://github.com/psf/black/issues/2598
+        path = Path(DATA_DIR / "nested_gitignore_tests")
+        src = Path(path / "root" / "child")
+        expected = [src / "a.py", src / "c.py"]
+        assert_collected_sources([src], expected)
+
     def test_invalid_gitignore(self) -> None:
         path = THIS_DIR / "data" / "invalid_gitignore_tests"
         empty_config = path / "pyproject.toml"
     def test_invalid_gitignore(self) -> None:
         path = THIS_DIR / "data" / "invalid_gitignore_tests"
         empty_config = path / "pyproject.toml"
vim configuration

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