blob: 8facbf558b4a75520f34a14e064e7e4dcbde33a5 [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.
library matcher.map_matchers;
import 'interfaces.dart';
import 'util.dart';
/// Returns a matcher which matches maps containing the given [value].
Matcher containsValue(value) => new _ContainsValue(value);
class _ContainsValue extends Matcher {
final _value;
const _ContainsValue(this._value);
bool matches(item, Map matchState) => item.containsValue(_value);
Description describe(Description description) =>
description.add('contains value ').addDescriptionOf(_value);
/// Returns a matcher which matches maps containing the key-value pair
/// with [key] => [value].
Matcher containsPair(key, value) =>
new _ContainsMapping(key, wrapMatcher(value));
class _ContainsMapping extends Matcher {
final _key;
final Matcher _valueMatcher;
const _ContainsMapping(this._key, Matcher this._valueMatcher);
bool matches(item, Map matchState) =>
item.containsKey(_key) && _valueMatcher.matches(item[_key], matchState);
Description describe(Description description) {
return description
.add('contains pair ')
.add(' => ')
Description describeMismatch(
item, Description mismatchDescription, Map matchState, bool verbose) {
if (!item.containsKey(_key)) {
return mismatchDescription
.add(" doesn't contain key ")
} else {
.add(' contains key ')
.add(' but with value ');
item[_key], mismatchDescription, matchState, verbose);
return mismatchDescription;