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// Copyright 2012 The Closure Library Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS-IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
/**
* @fileoverview Provides the built-in logic matchers: anyOf, allOf, and isNot.
*
*/
goog.provide('goog.labs.testing.AllOfMatcher');
goog.provide('goog.labs.testing.AnyOfMatcher');
goog.provide('goog.labs.testing.IsNotMatcher');
goog.require('goog.array');
goog.require('goog.labs.testing.Matcher');
/**
* The AllOf matcher.
*
* @param {!Array<!goog.labs.testing.Matcher>} matchers Input matchers.
*
* @constructor
* @struct
* @implements {goog.labs.testing.Matcher}
* @final
*/
goog.labs.testing.AllOfMatcher = function(matchers) {
/**
* @type {!Array<!goog.labs.testing.Matcher>}
* @private
*/
this.matchers_ = matchers;
};
/**
* Determines if all of the matchers match the input value.
*
* @override
*/
goog.labs.testing.AllOfMatcher.prototype.matches = function(actualValue) {
return goog.array.every(this.matchers_, function(matcher) {
return matcher.matches(actualValue);
});
};
/**
* Describes why the matcher failed. The returned string is a concatenation of
* all the failed matchers' error strings.
*
* @override
*/
goog.labs.testing.AllOfMatcher.prototype.describe = function(actualValue) {
// TODO(user) : Optimize this to remove duplication with matches ?
var errorString = '';
goog.array.forEach(this.matchers_, function(matcher) {
if (!matcher.matches(actualValue)) {
errorString += matcher.describe(actualValue) + '\n';
}
});
return errorString;
};
/**
* The AnyOf matcher.
*
* @param {!Array<!goog.labs.testing.Matcher>} matchers Input matchers.
*
* @constructor
* @struct
* @implements {goog.labs.testing.Matcher}
* @final
*/
goog.labs.testing.AnyOfMatcher = function(matchers) {
/**
* @type {!Array<!goog.labs.testing.Matcher>}
* @private
*/
this.matchers_ = matchers;
};
/**
* Determines if any of the matchers matches the input value.
*
* @override
*/
goog.labs.testing.AnyOfMatcher.prototype.matches = function(actualValue) {
return goog.array.some(this.matchers_, function(matcher) {
return matcher.matches(actualValue);
});
};
/**
* Describes why the matcher failed.
*
* @override
*/
goog.labs.testing.AnyOfMatcher.prototype.describe = function(actualValue) {
// TODO(user) : Optimize this to remove duplication with matches ?
var errorString = '';
goog.array.forEach(this.matchers_, function(matcher) {
if (!matcher.matches(actualValue)) {
errorString += matcher.describe(actualValue) + '\n';
}
});
return errorString;
};
/**
* The IsNot matcher.
*
* @param {!goog.labs.testing.Matcher} matcher The matcher to negate.
*
* @constructor
* @struct
* @implements {goog.labs.testing.Matcher}
* @final
*/
goog.labs.testing.IsNotMatcher = function(matcher) {
/**
* @type {!goog.labs.testing.Matcher}
* @private
*/
this.matcher_ = matcher;
};
/**
* Determines if the input value doesn't satisfy a matcher.
*
* @override
*/
goog.labs.testing.IsNotMatcher.prototype.matches = function(actualValue) {
return !this.matcher_.matches(actualValue);
};
/**
* Describes why the matcher failed.
*
* @override
*/
goog.labs.testing.IsNotMatcher.prototype.describe = function(actualValue) {
return 'The following is false: ' + this.matcher_.describe(actualValue);
};
/**
* Creates a matcher that will succeed only if all of the given matchers
* succeed.
*
* @param {...goog.labs.testing.Matcher} var_args The matchers to test
* against.
*
* @return {!goog.labs.testing.AllOfMatcher} The AllOf matcher.
*/
function allOf(var_args) {
var matchers = goog.array.toArray(arguments);
return new goog.labs.testing.AllOfMatcher(matchers);
}
/**
* Accepts a set of matchers and returns a matcher which matches
* values which satisfy the constraints of any of the given matchers.
*
* @param {...goog.labs.testing.Matcher} var_args The matchers to test
* against.
*
* @return {!goog.labs.testing.AnyOfMatcher} The AnyOf matcher.
*/
function anyOf(var_args) {
var matchers = goog.array.toArray(arguments);
return new goog.labs.testing.AnyOfMatcher(matchers);
}
/**
* Returns a matcher that negates the input matcher. The returned
* matcher matches the values not matched by the input matcher and vice-versa.
*
* @param {!goog.labs.testing.Matcher} matcher The matcher to test against.
*
* @return {!goog.labs.testing.IsNotMatcher} The IsNot matcher.
*/
function isNot(matcher) {
return new goog.labs.testing.IsNotMatcher(matcher);
}
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