-import re
from dataclasses import replace
from typing import Any, Iterator
from unittest.mock import patch
import pytest
import black
+from black.mode import TargetVersion
from tests.util import (
- DEFAULT_MODE,
- PY36_VERSIONS,
all_data_cases,
assert_format,
dump_to_stderr,
read_data,
+ read_data_with_mode,
)
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)
+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
+ )
@pytest.mark.filterwarnings("ignore:invalid escape sequence.*:DeprecationWarning")
-@pytest.mark.parametrize("filename", all_data_cases("simple_cases"))
+@pytest.mark.parametrize("filename", all_data_cases("cases"))
def test_simple_format(filename: str) -> None:
- magic_trailing_comma = filename != "skip_magic_trailing_comma"
- check_file(
- "simple_cases", filename, black.Mode(magic_trailing_comma=magic_trailing_comma)
- )
-
-
-@pytest.mark.parametrize("filename", all_data_cases("preview"))
-def test_preview_format(filename: str) -> None:
- check_file("preview", filename, black.Mode(preview=True))
-
-
-def test_preview_context_managers_targeting_py38() -> None:
- source, expected = read_data("preview_context_managers", "targeting_py38.py")
- mode = black.Mode(preview=True, target_versions={black.TargetVersion.PY38})
- assert_format(source, expected, mode, minimum_version=(3, 8))
-
-
-def test_preview_context_managers_targeting_py39() -> None:
- source, expected = read_data("preview_context_managers", "targeting_py39.py")
- mode = black.Mode(preview=True, target_versions={black.TargetVersion.PY39})
- assert_format(source, expected, mode, minimum_version=(3, 9))
-
-
-@pytest.mark.parametrize(
- "filename", all_data_cases("preview_context_managers/auto_detect")
-)
-def test_preview_context_managers_auto_detect(filename: str) -> None:
- match = re.match(r"features_3_(\d+)", filename)
- assert match is not None, "Unexpected filename format: %s" % filename
- source, expected = read_data("preview_context_managers/auto_detect", filename)
- mode = black.Mode(preview=True)
- assert_format(source, expected, mode, minimum_version=(3, int(match.group(1))))
+ check_file("cases", filename)
# =============== #
-# Complex cases
-# ============= #
+# Unusual cases
+# =============== #
def test_empty() -> None:
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})
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("py_312"))
-def test_python_312(filename: str) -> None:
- source, expected = read_data("py_312", filename)
- mode = black.Mode(target_versions={black.TargetVersion.PY312})
- assert_format(source, expected, mode, minimum_version=(3, 12))
-
-
-@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_docstring_line_length_6() -> None:
- """Like test_docstring but with line length set to 6."""
- source, expected = read_data("miscellaneous", "linelength6")
- mode = black.Mode(line_length=6)
- 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_nested_class_stub() -> None:
- mode = replace(DEFAULT_MODE, is_pyi=True, preview=True)
- source, expected = read_data("miscellaneous", "nested_class_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))
-
-
-def test_type_comment_syntax_error() -> None:
- """Test that black is able to format python code with type comment syntax errors."""
- source, expected = read_data("type_comments", "type_comment_syntax_error")
- assert_format(source, expected)
- black.assert_equivalent(source, expected)
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