Move utils.expand_module in its own file in lint

We never used it anywhere else than lint so it belong in lint.

2 files changed, 19 insertions, 13 deletions

diff --git a/tests/lint/unittest_expand_modules.py b/tests/lint/unittest_expand_modules.py
new file mode 100644
index 000000000..2a6b072ff
--- /dev/null
+++ b/tests/lint/unittest_expand_modules.py
@@ -0,0 +1,19 @@
+# Licensed under the GPL: https://www.gnu.org/licenses/old-licenses/gpl-2.0.html
+# For details: https://github.com/PyCQA/pylint/blob/master/COPYING
+
+
+import re
+
+from pylint.lint.expand_modules import _basename_in_ignore_list_re
+
+
+def test__basename_in_ignore_list_re_match():
+    patterns = [re.compile(".*enchilada.*"), re.compile("unittest_.*")]
+    assert _basename_in_ignore_list_re("unittest_utils.py", patterns)
+    assert _basename_in_ignore_list_re("cheese_enchiladas.xml", patterns)
+
+
+def test__basename_in_ignore_list_re_nomatch():
+    patterns = [re.compile(".*enchilada.*"), re.compile("unittest_.*")]
+    assert not _basename_in_ignore_list_re("test_utils.py", patterns)
+    assert not _basename_in_ignore_list_re("enchilad.py", patterns)
diff --git a/tests/utils/unittest_utils.py b/tests/utils/unittest_utils.py
index ff851c31c..ae53a6129 100644
--- a/tests/utils/unittest_utils.py
+++ b/tests/utils/unittest_utils.py
@@ -18,23 +18,10 @@
 # For details: https://github.com/PyCQA/pylint/blob/master/COPYING
 
 import io
-import re
 
 from pylint.utils import utils
 
 
-def test__basename_in_ignore_list_re_match():
-    patterns = [re.compile(".*enchilada.*"), re.compile("unittest_.*")]
-    assert utils._basename_in_ignore_list_re("unittest_utils.py", patterns)
-    assert utils._basename_in_ignore_list_re("cheese_enchiladas.xml", patterns)
-
-
-def test__basename_in_ignore_list_re_nomatch():
-    patterns = [re.compile(".*enchilada.*"), re.compile("unittest_.*")]
-    assert not utils._basename_in_ignore_list_re("test_utils.py", patterns)
-    assert not utils._basename_in_ignore_list_re("enchilad.py", patterns)
-
-
 def test_decoding_stream_unknown_encoding():
     """decoding_stream should fall back to *some* decoding when given an
     unknown encoding.