t.Errorf("should not filter")
	}
	if len(list.Filter(NewErrorTypeMatcher(ErrorTypeInvalid))) != 1 {
		t.Errorf("should filter")
	}
}

func TestNotSupported(t *testing.T) {
	notSupported := NotSupported(NewPath("f"), "v", []string{"a", "b", "c"})
	expected := `Unsupported value: "v": supported values: "a", "b", "c"`
	if notSupported.ErrorBody() != expected {