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Significantly speedup ESP on large expressions that contain many strings (#3467)
[etc/vim.git] / tests / test_format.py
diff --git a/tests/test_format.py b/tests/test_format.py
index aef22545f5b4bd128469ed4ddbb51d47832036c3..01cd61eef63dee3272e156d5e5700ad9f4152eda 100644 (file)
--- a/tests/test_format.py
+++ b/tests/test_format.py
@@ -1,5 +1,5 @@
 from dataclasses import replace
 from dataclasses import replace
-from typing import Any, Iterator, List
+from typing import Any, Iterator
 from unittest.mock import patch
 
 import pytest
 from unittest.mock import patch
 
 import pytest
@@ -8,121 +8,12 @@ import black
 from tests.util import (
     DEFAULT_MODE,
     PY36_VERSIONS,
 from tests.util import (
     DEFAULT_MODE,
     PY36_VERSIONS,
-    THIS_DIR,
+    all_data_cases,
     assert_format,
     dump_to_stderr,
     read_data,
 )
 
     assert_format,
     dump_to_stderr,
     read_data,
 )
 
-SIMPLE_CASES: List[str] = [
-    "attribute_access_on_number_literals",
-    "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",
-    "fmtskip6",
-    "fstring",
-    "function",
-    "function2",
-    "function_trailing_comma",
-    "import_spacing",
-    "power_op_spacing",
-    "remove_parens",
-    "slices",
-    "string_prefixes",
-    "trailing_comma_optional_parens1",
-    "trailing_comma_optional_parens2",
-    "trailing_comma_optional_parens3",
-    "tricky_unicode_symbols",
-    "tupleassign",
-]
-
-PY310_CASES: List[str] = [
-    "pattern_matching_simple",
-    "pattern_matching_complex",
-    "pattern_matching_extras",
-    "pattern_matching_style",
-    "pattern_matching_generic",
-    "parenthesized_context_managers",
-]
-
-PREVIEW_CASES: List[str] = [
-    # string processing
-    "cantfit",
-    "comments7",
-    "long_strings",
-    "long_strings__edge_case",
-    "long_strings__regression",
-    "percent_precedence",
-]
-
-SOURCES: List[str] = [
-    "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/black_primer/cli.py",
-    "src/black_primer/lib.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",
-]
-
 
 @pytest.fixture(autouse=True)
 def patch_dump_to_file(request: Any) -> Iterator[None]:
 
 @pytest.fixture(autouse=True)
 def patch_dump_to_file(request: Any) -> Iterator[None]:
@@ -130,25 +21,41 @@ def patch_dump_to_file(request: Any) -> Iterator[None]:
         yield
 
 
         yield
 
 
-def check_file(filename: str, mode: black.Mode, *, data: bool = True) -> None:
-    source, expected = read_data(filename, data=data)
+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)
 
 
     assert_format(source, expected, mode, fast=False)
 
 
-@pytest.mark.parametrize("filename", SIMPLE_CASES)
+@pytest.mark.filterwarnings("ignore:invalid escape sequence.*:DeprecationWarning")
+@pytest.mark.parametrize("filename", all_data_cases("simple_cases"))
 def test_simple_format(filename: str) -> None:
 def test_simple_format(filename: str) -> None:
-    check_file(filename, DEFAULT_MODE)
+    check_file("simple_cases", filename, DEFAULT_MODE)
 
 
 
 
-@pytest.mark.parametrize("filename", PREVIEW_CASES)
+@pytest.mark.parametrize("filename", all_data_cases("preview"))
 def test_preview_format(filename: str) -> None:
 def test_preview_format(filename: str) -> None:
-    check_file(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"))
+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", SOURCES)
-def test_source_is_formatted(filename: str) -> None:
-    path = THIS_DIR.parent / filename
-    check_file(str(path), DEFAULT_MODE, data=False)
+
+@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))
 
 
 # =============== #
 
 
 # =============== #
@@ -161,49 +68,50 @@ def test_empty() -> None:
     assert_format(source, expected)
 
 
     assert_format(source, expected)
 
 
-def test_pep_572() -> None:
-    source, expected = read_data("pep_572")
-    assert_format(source, expected, minimum_version=(3, 8))
+@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))
 
 
 
 
-def test_pep_572_remove_parens() -> None:
-    source, expected = read_data("pep_572_remove_parens")
-    assert_format(source, expected, minimum_version=(3, 8))
-
-
-def test_pep_572_do_not_remove_parens() -> None:
-    source, expected = read_data("pep_572_do_not_remove_parens")
-    # the AST safety checks will fail, but that's expected, just make sure no
-    # parentheses are touched
-    assert_format(source, expected, fast=True)
+@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("major, minor", [(3, 9), (3, 10)])
-def test_pep_572_newer_syntax(major: int, minor: int) -> None:
-    source, expected = read_data(f"pep_572_py{major}{minor}")
-    assert_format(source, expected, minimum_version=(major, minor))
+@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))
 
 
 
 
-def test_pep_570() -> None:
-    source, expected = read_data("pep_570")
-    assert_format(source, expected, 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", PY310_CASES)
+@pytest.mark.parametrize("filename", all_data_cases("py_310"))
 def test_python_310(filename: str) -> None:
 def test_python_310(filename: str) -> None:
-    source, expected = read_data(filename)
+    source, expected = read_data("py_310", filename)
     mode = black.Mode(target_versions={black.TargetVersion.PY310})
     assert_format(source, expected, mode, minimum_version=(3, 10))
 
 
     mode = black.Mode(target_versions={black.TargetVersion.PY310})
     assert_format(source, expected, mode, minimum_version=(3, 10))
 
 
-def test_python_310_without_target_version() -> None:
-    source, expected = read_data("pattern_matching_simple")
+@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:
     mode = black.Mode()
     assert_format(source, expected, mode, minimum_version=(3, 10))
 
 
 def test_patma_invalid() -> None:
-    source, expected = read_data("pattern_matching_invalid")
+    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))
     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))
@@ -211,55 +119,59 @@ def test_patma_invalid() -> None:
     exc_info.match("Cannot parse: 10:11")
 
 
     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)
 
 
 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."""
 def test_docstring_no_string_normalization() -> None:
     """Like test_docstring but with string normalization off."""
-    source, expected = read_data("docstring_no_string_normalization")
+    source, expected = read_data("miscellaneous", "docstring_no_string_normalization")
     mode = replace(DEFAULT_MODE, string_normalization=False)
     assert_format(source, expected, mode)
 
 
     mode = replace(DEFAULT_MODE, string_normalization=False)
     assert_format(source, expected, mode)
 
 
-def test_long_strings_flag_disabled() -> None:
-    """Tests for turning off the string processing logic."""
-    source, expected = read_data("long_strings_flag_disabled")
-    mode = replace(DEFAULT_MODE, experimental_string_processing=False)
-    assert_format(source, expected, mode)
-
-
-def test_numeric_literals() -> None:
-    source, expected = read_data("numeric_literals")
-    mode = replace(DEFAULT_MODE, target_versions=PY36_VERSIONS)
+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)
 
 
     assert_format(source, expected, mode)
 
 
-def test_numeric_literals_ignoring_underscores() -> None:
-    source, expected = read_data("numeric_literals_skip_underscores")
-    mode = replace(DEFAULT_MODE, target_versions=PY36_VERSIONS)
+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)
     assert_format(source, expected, mode)
 
 
 def test_stub() -> None:
     mode = replace(DEFAULT_MODE, is_pyi=True)
-    source, expected = read_data("stub.pyi")
+    source, expected = read_data("miscellaneous", "stub.pyi")
     assert_format(source, expected, mode)
 
 
     assert_format(source, expected, mode)
 
 
-def test_python38() -> None:
-    source, expected = read_data("python38")
-    assert_format(source, expected, minimum_version=(3, 8))
-
-
-def test_python39() -> None:
-    source, expected = read_data("python39")
-    assert_format(source, expected, minimum_version=(3, 9))
-
-
 def test_power_op_newline() -> None:
     # requires line_length=0
 def test_power_op_newline() -> None:
     # requires line_length=0
-    source, expected = read_data("power_op_newline")
+    source, expected = read_data("miscellaneous", "power_op_newline")
     assert_format(source, expected, mode=black.Mode(line_length=0))
     assert_format(source, expected, mode=black.Mode(line_length=0))
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