Adding upstream version 4.5.0+dfsg.

Signed-off-by: Daniel Baumann <daniel@debian.org>

tests/check_symlinks_test.py

@@ -0,0 +1,25 @@
+from __future__ import annotations
+
+import os
+
+import pytest
+
+from pre_commit_hooks.check_symlinks import main
+
+
+xfail_symlink = pytest.mark.xfail(os.name == 'nt', reason='No symlink support')
+
+
+@xfail_symlink
+@pytest.mark.parametrize(
+    ('dest', 'expected'), (('exists', 0), ('does-not-exist', 1)),
+)
+def test_main(tmpdir, dest, expected):  # pragma: no cover (symlinks)
+    tmpdir.join('exists').ensure()
+    symlink = tmpdir.join('symlink')
+    symlink.mksymlinkto(tmpdir.join(dest))
+    assert main((str(symlink),)) == expected
+
+
+def test_main_normal_file(tmpdir):
+    assert main((str(tmpdir.join('f').ensure()),)) == 0