Fix grammar for type alias support (#3949)

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

diff --git a/tests/test_format.py b/tests/test_format.py
index 5c78afe0ba686f35fdfc0de44779c6ecaa115371..4e863c6c54b4ddb843434c4d4586531a877645d5 100644 (file)
--- a/tests/test_format.py
+++ b/tests/test_format.py
@@ -1,144 +1,64 @@
+from dataclasses import replace
+from typing import Any, Iterator
 from unittest.mock import patch
 
-import black
 import pytest
-from parameterized import parameterized
 
+import black
+from black.mode import TargetVersion
 from tests.util import (
-    BlackBaseTestCase,
-    fs,
-    DEFAULT_MODE,
+    all_data_cases,
+    assert_format,
     dump_to_stderr,
     read_data,
-    THIS_DIR,
+    read_data_with_mode,
 )
 
-SIMPLE_CASES = [
-    "beginning_backslash",
-    "bracketmatch",
-    "class_blank_parentheses",
-    "class_methods_new_line",
-    "collections",
-    "comments",
-    "comments2",
-    "comments3",
-    "comments4",
-    "comments5",
-    "comments6",
-    "comments_non_breaking_space",
-    "comment_after_escaped_newline",
-    "composition",
-    "composition_no_trailing_comma",
-    "docstring",
-    "empty_lines",
-    "expression",
-    "fmtonoff",
-    "fmtonoff2",
-    "fmtonoff3",
-    "fmtonoff4",
-    "fmtskip",
-    "fmtskip2",
-    "fmtskip3",
-    "fmtskip4",
-    "fmtskip5",
-    "fstring",
-    "function",
-    "function2",
-    "function_trailing_comma",
-    "import_spacing",
-    "remove_parens",
-    "slices",
-    "string_prefixes",
-    "tricky_unicode_symbols",
-    "tupleassign",
-]
 
-SIMPLE_CASES_PY2 = [
-    "numeric_literals_py2",
-    "python2",
-    "python2_unicode_literals",
-]
+@pytest.fixture(autouse=True)
+def patch_dump_to_file(request: Any) -> Iterator[None]:
+    with patch("black.dump_to_file", dump_to_stderr):
+        yield
+
+
+def check_file(subdir: str, filename: str, *, data: bool = True) -> None:
+    args, source, expected = read_data_with_mode(subdir, filename, data=data)
+    assert_format(
+        source,
+        expected,
+        args.mode,
+        fast=args.fast,
+        minimum_version=args.minimum_version,
+    )
+    if args.minimum_version is not None:
+        major, minor = args.minimum_version
+        target_version = TargetVersion[f"PY{major}{minor}"]
+        mode = replace(args.mode, target_versions={target_version})
+        assert_format(
+            source, expected, mode, fast=args.fast, minimum_version=args.minimum_version
+        )
 
-EXPERIMENTAL_STRING_PROCESSING_CASES = [
-    "cantfit",
-    "comments7",
-    "long_strings",
-    "long_strings__edge_case",
-    "long_strings__regression",
-    "percent_precedence",
-]
 
+@pytest.mark.filterwarnings("ignore:invalid escape sequence.*:DeprecationWarning")
+@pytest.mark.parametrize("filename", all_data_cases("cases"))
+def test_simple_format(filename: str) -> None:
+    check_file("cases", filename)
 
-SOURCES = [
-    "src/black/__init__.py",
-    "src/black/__main__.py",
-    "src/black/brackets.py",
-    "src/black/cache.py",
-    "src/black/comments.py",
-    "src/black/concurrency.py",
-    "src/black/const.py",
-    "src/black/debug.py",
-    "src/black/files.py",
-    "src/black/linegen.py",
-    "src/black/lines.py",
-    "src/black/mode.py",
-    "src/black/nodes.py",
-    "src/black/numerics.py",
-    "src/black/output.py",
-    "src/black/parsing.py",
-    "src/black/report.py",
-    "src/black/rusty.py",
-    "src/black/strings.py",
-    "src/black/trans.py",
-    "src/blackd/__init__.py",
-    "src/blib2to3/pygram.py",
-    "src/blib2to3/pytree.py",
-    "src/blib2to3/pgen2/conv.py",
-    "src/blib2to3/pgen2/driver.py",
-    "src/blib2to3/pgen2/grammar.py",
-    "src/blib2to3/pgen2/literals.py",
-    "src/blib2to3/pgen2/parse.py",
-    "src/blib2to3/pgen2/pgen.py",
-    "src/blib2to3/pgen2/tokenize.py",
-    "src/blib2to3/pgen2/token.py",
-    "setup.py",
-    "tests/test_black.py",
-    "tests/test_blackd.py",
-    "tests/test_format.py",
-    "tests/test_primer.py",
-    "tests/optional.py",
-    "tests/util.py",
-    "tests/conftest.py",
-]
 
+# =============== #
+# Unusual cases
+# =============== #
 
-class TestSimpleFormat(BlackBaseTestCase):
-    @parameterized.expand(SIMPLE_CASES_PY2)
-    @pytest.mark.python2
-    @patch("black.dump_to_file", dump_to_stderr)
-    def test_simple_format_py2(self, filename: str) -> None:
-        self.check_file(filename, DEFAULT_MODE)
 
-    @parameterized.expand(SIMPLE_CASES)
-    @patch("black.dump_to_file", dump_to_stderr)
-    def test_simple_format(self, filename: str) -> None:
-        self.check_file(filename, DEFAULT_MODE)
+def test_empty() -> None:
+    source = expected = ""
+    assert_format(source, expected)
 
-    @parameterized.expand(EXPERIMENTAL_STRING_PROCESSING_CASES)
-    @patch("black.dump_to_file", dump_to_stderr)
-    def test_experimental_format(self, filename: str) -> None:
-        self.check_file(filename, black.Mode(experimental_string_processing=True))
 
-    @parameterized.expand(SOURCES)
-    @patch("black.dump_to_file", dump_to_stderr)
-    def test_source_is_formatted(self, filename: str) -> None:
-        path = THIS_DIR.parent / filename
-        self.check_file(str(path), DEFAULT_MODE, data=False)
+def test_patma_invalid() -> None:
+    source, expected = read_data("miscellaneous", "pattern_matching_invalid")
+    mode = black.Mode(target_versions={black.TargetVersion.PY310})
+    with pytest.raises(black.parsing.InvalidInput) as exc_info:
+        assert_format(source, expected, mode, minimum_version=(3, 10))
 
-    def check_file(self, filename: str, mode: black.Mode, *, data: bool = True) -> None:
-        source, expected = read_data(filename, data=data)
-        actual = fs(source, mode=mode)
-        self.assertFormatEqual(expected, actual)
-        if source != actual:
-            black.assert_equivalent(source, actual)
-            black.assert_stable(source, actual, mode)
+    exc_info.match("Cannot parse: 10:11")