test(nuke): improve test coverage of error handling

pkg/nuke/nuke_filter_test.go

@@ -157,6 +157,45 @@ func Test_NukeFiltersMatchGroups_NoMatch(t *testing.T) {
 	assert.Equal(t, 1, n.Queue.Count(queue.ItemStateFiltered))
 }
 
+func Test_NukeFiltersMatchGroups_NoMatch_WithError(t *testing.T) {
+	registry.ClearRegistry()
+	registry.Register(TestResourceRegistration2)
+
+	filters := filter.Filters{
+		TestResourceType2: []filter.Filter{
+			{
+				Type:     filter.Exact,
+				Property: "test",
+				Value:    "testing",
+				Group:    "group1",
+			},
+			{
+				Type:     filter.Regex,
+				Property: "test2",
+				Value:    "^(testing$",
+				Group:    "group2",
+			},
+		},
+	}
+
+	n := New(testParametersGroups, filters, nil)
+	n.SetLogger(logrus.WithField("test", true))
+	n.SetRunSleep(time.Millisecond * 5)
+
+	opts := TestOpts{
+		SessionOne:     "testing",
+		SecondResource: true,
+	}
+	newScanner := scanner.New("Owner", []string{TestResourceType2}, opts)
+
+	sErr := n.RegisterScanner(testScope, newScanner)
+	assert.NoError(t, sErr)
+
+	err := n.Scan(context.TODO())
+	assert.Error(t, err)
+	assert.Equal(t, "error parsing regexp: missing closing ): `^(testing$`", err.Error())
+}
+
 func Test_NukeFiltersMatchInverted(t *testing.T) {
 	registry.ClearRegistry()
 	registry.Register(TestResourceRegistration2)