1 files changed, 101 insertions, 0 deletions
diff --git a/tests/config/unittest_config.py b/tests/config/unittest_config.py
new file mode 100644
index 000000000..9979aa41b
--- /dev/null
+++ b/tests/config/unittest_config.py
@@ -0,0 +1,101 @@
+# Copyright (c) 2015 Aru Sahni <arusahni@gmail.com>
+# Copyright (c) 2016-2018, 2020 Claudiu Popa <pcmanticore@gmail.com>
+# Copyright (c) 2016 Derek Gustafson <degustaf@gmail.com>
+# Copyright (c) 2017 Ville Skyttä <ville.skytta@iki.fi>
+# Copyright (c) 2019-2021 Pierre Sassoulas <pierre.sassoulas@gmail.com>
+# Copyright (c) 2019 Ashley Whetter <ashley@awhetter.co.uk>
+# Copyright (c) 2020 hippo91 <guillaume.peillex@gmail.com>
+# Copyright (c) 2020 Anthony Sottile <asottile@umich.edu>
+# Copyright (c) 2021 Daniël van Noord <13665637+DanielNoord@users.noreply.github.com>
+# Copyright (c) 2021 Marc Mueller <30130371+cdce8p@users.noreply.github.com>
+
+# Licensed under the GPL: https://www.gnu.org/licenses/old-licenses/gpl-2.0.html
+# For details: https://github.com/PyCQA/pylint/blob/main/LICENSE
+
+"""Unit tests for the config module."""
+
+import re
+import sre_constants
+from typing import Dict, Tuple, Type
+
+import pytest
+
+from pylint import config
+from pylint.checkers import BaseChecker
+from pylint.testutils import CheckerTestCase, set_config
+from pylint.utils.utils import get_global_option
+
+RE_PATTERN_TYPE = getattr(re, "Pattern", getattr(re, "_pattern_type", None))
+
+
+def test__regexp_validator_valid() -> None:
+    result = config.option._regexp_validator(None, None, "test_.*")
+    assert isinstance(result, RE_PATTERN_TYPE)
+    assert result.pattern == "test_.*"
+
+
+def test__regexp_validator_invalid() -> None:
+    with pytest.raises(sre_constants.error):
+        config.option._regexp_validator(None, None, "test_)")
+
+
+def test__csv_validator_no_spaces() -> None:
+    values = ["One", "Two", "Three"]
+    result = config.option._csv_validator(None, None, ",".join(values))
+    assert isinstance(result, list)
+    assert len(result) == 3
+    for i, value in enumerate(values):
+        assert result[i] == value
+
+
+def test__csv_validator_spaces() -> None:
+    values = ["One", "Two", "Three"]
+    result = config.option._csv_validator(None, None, ", ".join(values))
+    assert isinstance(result, list)
+    assert len(result) == 3
+    for i, value in enumerate(values):
+        assert result[i] == value
+
+
+def test__regexp_csv_validator_valid() -> None:
+    pattern_strings = ["test_.*", "foo\\.bar", "^baz$"]
+    result = config.option._regexp_csv_validator(None, None, ",".join(pattern_strings))
+    for i, regex in enumerate(result):
+        assert isinstance(regex, RE_PATTERN_TYPE)
+        assert regex.pattern == pattern_strings[i]
+
+
+def test__regexp_csv_validator_invalid() -> None:
+    pattern_strings = ["test_.*", "foo\\.bar", "^baz)$"]
+    with pytest.raises(sre_constants.error):
+        config.option._regexp_csv_validator(None, None, ",".join(pattern_strings))
+
+
+class TestPyLinterOptionSetters(CheckerTestCase):
+    """Class to check the set_config decorator and get_global_option util
+    for options declared in PyLinter."""
+
+    class Checker(BaseChecker):
+        name = "checker"
+        msgs: Dict[str, Tuple[str, ...]] = {}
+        options = (("An option", {"An option": "dict"}),)
+
+    CHECKER_CLASS: Type = Checker
+
+    @set_config(ignore_paths=".*/tests/.*,.*\\ignore\\.*")
+    def test_ignore_paths_with_value(self) -> None:
+        """Test ignore-paths option with value"""
+        options = get_global_option(self.checker, "ignore-paths")
+
+        assert any(i.match("dir/tests/file.py") for i in options)
+        assert any(i.match("dir\\tests\\file.py") for i in options)
+        assert any(i.match("dir/ignore/file.py") for i in options)
+        assert any(i.match("dir\\ignore\\file.py") for i in options)
+
+    def test_ignore_paths_with_no_value(self) -> None:
+        """Test ignore-paths option with no value.
+        Compare against actual list to see if validator works."""
+        options = get_global_option(self.checker, "ignore-paths")
+
+        # pylint: disable-next=use-implicit-booleaness-not-comparison
+        assert options == []