Add configuration option ``exclude-too-few-public-methods`` (#5191)

Allow excluding classes based on their ancestors from the ``too-few-public-methods`` checker.

Closes #3370

Signed-off-by: Mike Fiedler <miketheman@gmail.com>

Co-authored-by: Daniël van Noord <13665637+DanielNoord@users.noreply.github.com>

1 files changed, 18 insertions, 0 deletions

diff --git a/tests/checkers/unittest_design.py b/tests/checkers/unittest_design.py
index 5c6f38816..441793a2e 100644
--- a/tests/checkers/unittest_design.py
+++ b/tests/checkers/unittest_design.py
@@ -11,6 +11,7 @@ import astroid
 
 from pylint.checkers import design_analysis
 from pylint.testutils import CheckerTestCase, set_config
+from pylint.utils.utils import get_global_option
 
 
 class TestDesignChecker(CheckerTestCase):
@@ -42,3 +43,20 @@ class TestDesignChecker(CheckerTestCase):
         )
         with self.assertNoMessages():
             self.checker.visit_classdef(node)
+
+    @set_config(exclude_too_few_public_methods="toml.*")
+    def test_exclude_too_few_methods_with_value(self) -> None:
+        """Test exclude-too-few-public-methods option with value"""
+        options = get_global_option(self.checker, "exclude-too-few-public-methods")
+
+        assert any(i.match("toml") for i in options)
+        assert any(i.match("toml.*") for i in options)
+        assert any(i.match("toml.TomlEncoder") for i in options)
+
+    def test_ignore_paths_with_no_value(self) -> None:
+        """Test exclude-too-few-public-methods option with no value.
+        Compare against actual list to see if validator works."""
+        options = get_global_option(self.checker, "exclude-too-few-public-methods")
+
+        # pylint: disable-next=use-implicit-booleaness-not-comparison
+        assert options == []