blob: 537679c8830b4396374db841d25888ff477a5372 [file] [log] [blame]
// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
import 'package:matcher/matcher.dart';
import 'package:test/test.dart' show test;
import 'test_utils.dart';
class _BadCustomMatcher extends CustomMatcher {
_BadCustomMatcher() : super("feature", "description", {1: "a"});
Object featureValueOf(actual) => throw new Exception("bang");
class _HasPrice extends CustomMatcher {
_HasPrice(matcher) : super("Widget with a price that is", "price", matcher);
Object featureValueOf(actual) => (actual as Widget).price;
void main() {
test("Feature Matcher", () {
var w = new Widget();
w.price = 10;
shouldPass(w, new _HasPrice(10));
shouldPass(w, new _HasPrice(greaterThan(0)));
new _HasPrice(greaterThan(10)),
"Expected: Widget with a price that is a value greater than <10> "
"Actual: <Instance of 'Widget'> "
"Which: has price with value <10> which is not "
"a value greater than <10>");
test("Custom Matcher Exception", () {
new _BadCustomMatcher(),
contains("Expected: feature {1: 'a'} "),
contains("Actual: 'a' "),
contains("Which: threw 'Exception: bang' "),