test(_filedir): add tests for . and .. exclusion

test/t/unit/test_unit_compgen_filedir.py

@@ -235,3 +235,27 @@ def test_26(self, bash, functions, funcname):
     def test_27(self, bash, functions, funcname, utf8_ctype):
         completion = assert_complete(bash, "%s aé/" % funcname, cwd="_filedir")
         assert completion == "g"
+
+    @pytest.mark.parametrize("funcname", "f f2".split())
+    def test_28_dot_1(self, bash, functions, funcname):
+        """Exclude . and .. when the completion is attempted for '.[TAB]'"""
+        completion = assert_complete(bash, r"%s ." % funcname, cwd="_filedir")
+        assert completion == [".dotfile1", ".dotfile2"]
+
+    @pytest.mark.parametrize("funcname", "f f2".split())
+    def test_28_dot_2(self, bash, functions, funcname):
+        """Exclude . and .. when the completion is attempted for 'dir/.[TAB]'"""
+        completion = assert_complete(bash, r"%s _filedir/." % funcname)
+        assert completion == [".dotfile1", ".dotfile2"]
+
+    @pytest.mark.parametrize("funcname", "f f2".split())
+    def test_28_dot_3(self, bash, functions, funcname):
+        """Include . when the completion is attempted for '..[TAB]'"""
+        completion = assert_complete(bash, r"%s .." % funcname, cwd="_filedir")
+        assert completion == "/"
+
+    @pytest.mark.parametrize("funcname", "f f2".split())
+    def test_28_dot_4(self, bash, functions, funcname):
+        """Include . when the completion is attempted for '..[TAB]'"""
+        completion = assert_complete(bash, r"%s _filedir/.." % funcname)
+        assert completion == "/"