Fix `black --help` output for `--python-cell-magics` option to be reproducible (...

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

diff --git a/tests/test_format.py b/tests/test_format.py
index 3645934721f0248278d08e14c6386cbd2bcde86d..adcbc02468d166f5803a694d78897f2f9ff1cc5f 100644 (file)
--- a/tests/test_format.py
+++ b/tests/test_format.py
@@ -1,3 +1,4 @@
+import re

 from dataclasses import replace
 from typing import Any, Iterator
 from unittest.mock import patch
 from dataclasses import replace
 from typing import Any, Iterator
 from unittest.mock import patch


@@ -36,7 +37,12 @@ def test_simple_format(filename: str) -> None:
 
 @pytest.mark.parametrize("filename", all_data_cases("preview"))
 def test_preview_format(filename: str) -> None:
 
 @pytest.mark.parametrize("filename", all_data_cases("preview"))
 def test_preview_format(filename: str) -> None:

-    check_file("preview", filename, black.Mode(preview=True))
+    magic_trailing_comma = filename != "skip_magic_trailing_comma"
+    check_file(
+        "preview",
+        filename,
+        black.Mode(preview=True, magic_trailing_comma=magic_trailing_comma),
+    )

 
 
 @pytest.mark.parametrize("filename", all_data_cases("preview_39"))
 
 
 @pytest.mark.parametrize("filename", all_data_cases("preview_39"))


@@ -53,6 +59,29 @@ def test_preview_minimum_python_310_format(filename: str) -> None:
     assert_format(source, expected, mode, minimum_version=(3, 10))
 
 
     assert_format(source, expected, mode, minimum_version=(3, 10))
 
 

+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))))
+
+

 # =============== #
 # Complex cases
 # ============= #
 # =============== #
 # Complex cases
 # ============= #


@@ -141,6 +170,13 @@ def test_docstring_no_string_normalization() -> None:
     assert_format(source, expected, mode)
 
 
     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
 def test_preview_docstring_no_string_normalization() -> None:
     """
     Like test_docstring but with string normalization off *and* the preview style