]> git.madduck.net Git - etc/vim.git/blobdiff - tests/test_format.py

madduck's git repository

Every one of the projects in this repository is available at the canonical URL git://git.madduck.net/madduck/pub/<projectpath> — see each project's metadata for the exact URL.

All patches and comments are welcome. Please squash your changes to logical commits before using git-format-patch and git-send-email to patches@git.madduck.net. If you'd read over the Git project's submission guidelines and adhered to them, I'd be especially grateful.

SSH access, as well as push access can be individually arranged.

If you use my repositories frequently, consider adding the following snippet to ~/.gitconfig and using the third clone URL listed for each project:

[url "git://git.madduck.net/madduck/"]
  insteadOf = madduck:

Vim plugin: prefix messages with "Black: " (#3194)
[etc/vim.git] / tests / test_format.py
index e4677707e3ca5091d6f8d111f6cb33559ecc6cdb..3645934721f0248278d08e14c6386cbd2bcde86d 100644 (file)
+from dataclasses import replace
+from typing import Any, Iterator
 from unittest.mock import patch
 
-import black
-from parameterized import parameterized
+import pytest
 
+import black
 from tests.util import (
-    BlackBaseTestCase,
-    fs,
-    ff,
     DEFAULT_MODE,
+    PY36_VERSIONS,
+    all_data_cases,
+    assert_format,
     dump_to_stderr,
     read_data,
-    THIS_DIR,
 )
 
-SIMPLE_CASES = [
-    "beginning_backslash",
-    "bracketmatch",
-    "cantfit",
-    "class_blank_parentheses",
-    "class_methods_new_line",
-    "collections",
-    "comments",
-    "comments2",
-    "comments3",
-    "comments4",
-    "comments5",
-    "comments6",
-    "comments7",
-    "comment_after_escaped_newline",
-    "composition",
-    "composition_no_trailing_comma",
-    "docstring",
-    "empty_lines",
-    "expression",
-    "fmtonoff",
-    "fmtonoff2",
-    "fmtonoff3",
-    "fmtonoff4",
-    "fstring",
-    "function",
-    "function2",
-    "function_trailing_comma",
-    "import_spacing",
-    "long_strings",
-    "long_strings__edge_case",
-    "long_strings__regression",
-    "numeric_literals_py2",
-    "percent_precedence",
-    "python2",
-    "python2_unicode_literals",
-    "remove_parens",
-    "slices",
-    "string_prefixes",
-    "tricky_unicode_symbols",
-    "tupleassign",
-]
-
-
-SOURCES = [
-    "tests/test_black.py",
-    "tests/test_format.py",
-    "tests/test_blackd.py",
-    "src/black/__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",
-]
-
-
-class TestSimpleFormat(BlackBaseTestCase):
-    @parameterized.expand(SIMPLE_CASES)
-    @patch("black.dump_to_file", dump_to_stderr)
-    def test_simple_format(self, filename: str) -> None:
-        source, expected = read_data(filename)
-        actual = fs(source)
-        self.assertFormatEqual(expected, actual)
-        black.assert_equivalent(source, actual)
-        black.assert_stable(source, actual, DEFAULT_MODE)
-
-    @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
-        source, expected = read_data(str(path), data=False)
-        actual = fs(source, mode=DEFAULT_MODE)
-        self.assertFormatEqual(expected, actual)
-        black.assert_equivalent(source, actual)
-        black.assert_stable(source, actual, DEFAULT_MODE)
-        self.assertFalse(ff(path))
+
+@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, mode: black.Mode, *, data: bool = True
+) -> None:
+    source, expected = read_data(subdir, filename, data=data)
+    assert_format(source, expected, mode, fast=False)
+
+
+@pytest.mark.filterwarnings("ignore:invalid escape sequence.*:DeprecationWarning")
+@pytest.mark.parametrize("filename", all_data_cases("simple_cases"))
+def test_simple_format(filename: str) -> None:
+    check_file("simple_cases", filename, DEFAULT_MODE)
+
+
+@pytest.mark.parametrize("filename", all_data_cases("preview"))
+def test_preview_format(filename: str) -> None:
+    check_file("preview", filename, black.Mode(preview=True))
+
+
+@pytest.mark.parametrize("filename", all_data_cases("preview_39"))
+def test_preview_minimum_python_39_format(filename: str) -> None:
+    source, expected = read_data("preview_39", filename)
+    mode = black.Mode(preview=True)
+    assert_format(source, expected, mode, minimum_version=(3, 9))
+
+
+@pytest.mark.parametrize("filename", all_data_cases("preview_310"))
+def test_preview_minimum_python_310_format(filename: str) -> None:
+    source, expected = read_data("preview_310", filename)
+    mode = black.Mode(preview=True)
+    assert_format(source, expected, mode, minimum_version=(3, 10))
+
+
+# =============== #
+# Complex cases
+# ============= #
+
+
+def test_empty() -> None:
+    source = expected = ""
+    assert_format(source, expected)
+
+
+@pytest.mark.parametrize("filename", all_data_cases("py_36"))
+def test_python_36(filename: str) -> None:
+    source, expected = read_data("py_36", filename)
+    mode = black.Mode(target_versions=PY36_VERSIONS)
+    assert_format(source, expected, mode, minimum_version=(3, 6))
+
+
+@pytest.mark.parametrize("filename", all_data_cases("py_37"))
+def test_python_37(filename: str) -> None:
+    source, expected = read_data("py_37", filename)
+    mode = black.Mode(target_versions={black.TargetVersion.PY37})
+    assert_format(source, expected, mode, minimum_version=(3, 7))
+
+
+@pytest.mark.parametrize("filename", all_data_cases("py_38"))
+def test_python_38(filename: str) -> None:
+    source, expected = read_data("py_38", filename)
+    mode = black.Mode(target_versions={black.TargetVersion.PY38})
+    assert_format(source, expected, mode, minimum_version=(3, 8))
+
+
+@pytest.mark.parametrize("filename", all_data_cases("py_39"))
+def test_python_39(filename: str) -> None:
+    source, expected = read_data("py_39", filename)
+    mode = black.Mode(target_versions={black.TargetVersion.PY39})
+    assert_format(source, expected, mode, minimum_version=(3, 9))
+
+
+@pytest.mark.parametrize("filename", all_data_cases("py_310"))
+def test_python_310(filename: str) -> None:
+    source, expected = read_data("py_310", filename)
+    mode = black.Mode(target_versions={black.TargetVersion.PY310})
+    assert_format(source, expected, mode, minimum_version=(3, 10))
+
+
+@pytest.mark.parametrize("filename", all_data_cases("py_310"))
+def test_python_310_without_target_version(filename: str) -> None:
+    source, expected = read_data("py_310", filename)
+    mode = black.Mode()
+    assert_format(source, expected, mode, minimum_version=(3, 10))
+
+
+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))
+
+    exc_info.match("Cannot parse: 10:11")
+
+
+@pytest.mark.parametrize("filename", all_data_cases("py_311"))
+def test_python_311(filename: str) -> None:
+    source, expected = read_data("py_311", filename)
+    mode = black.Mode(target_versions={black.TargetVersion.PY311})
+    assert_format(source, expected, mode, minimum_version=(3, 11))
+
+
+@pytest.mark.parametrize("filename", all_data_cases("fast"))
+def test_fast_cases(filename: str) -> None:
+    source, expected = read_data("fast", filename)
+    assert_format(source, expected, fast=True)
+
+
+def test_python_2_hint() -> None:
+    with pytest.raises(black.parsing.InvalidInput) as exc_info:
+        assert_format("print 'daylily'", "print 'daylily'")
+    exc_info.match(black.parsing.PY2_HINT)
+
+
+@pytest.mark.filterwarnings("ignore:invalid escape sequence.*:DeprecationWarning")
+def test_docstring_no_string_normalization() -> None:
+    """Like test_docstring but with string normalization off."""
+    source, expected = read_data("miscellaneous", "docstring_no_string_normalization")
+    mode = replace(DEFAULT_MODE, string_normalization=False)
+    assert_format(source, expected, mode)
+
+
+def test_preview_docstring_no_string_normalization() -> None:
+    """
+    Like test_docstring but with string normalization off *and* the preview style
+    enabled.
+    """
+    source, expected = read_data(
+        "miscellaneous", "docstring_preview_no_string_normalization"
+    )
+    mode = replace(DEFAULT_MODE, string_normalization=False, preview=True)
+    assert_format(source, expected, mode)
+
+
+def test_long_strings_flag_disabled() -> None:
+    """Tests for turning off the string processing logic."""
+    source, expected = read_data("miscellaneous", "long_strings_flag_disabled")
+    mode = replace(DEFAULT_MODE, experimental_string_processing=False)
+    assert_format(source, expected, mode)
+
+
+def test_stub() -> None:
+    mode = replace(DEFAULT_MODE, is_pyi=True)
+    source, expected = read_data("miscellaneous", "stub.pyi")
+    assert_format(source, expected, mode)
+
+
+def test_power_op_newline() -> None:
+    # requires line_length=0
+    source, expected = read_data("miscellaneous", "power_op_newline")
+    assert_format(source, expected, mode=black.Mode(line_length=0))