52 lines
1.8 KiB
JavaScript
52 lines
1.8 KiB
JavaScript
/**
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* A block which waits for some condition to become true, with timeout.
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*
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* @constructor
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* @extends jasmine.Block
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* @param {jasmine.Env} env The Jasmine environment.
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* @param {Number} timeout The maximum time in milliseconds to wait for the condition to become true.
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* @param {Function} latchFunction A function which returns true when the desired condition has been met.
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* @param {String} message The message to display if the desired condition hasn't been met within the given time period.
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* @param {jasmine.Spec} spec The Jasmine spec.
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*/
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jasmine.WaitsForBlock = function(env, timeout, latchFunction, message, spec) {
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this.timeout = timeout || env.defaultTimeoutInterval;
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this.latchFunction = latchFunction;
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this.message = message;
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this.totalTimeSpentWaitingForLatch = 0;
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jasmine.Block.call(this, env, null, spec);
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};
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jasmine.util.inherit(jasmine.WaitsForBlock, jasmine.Block);
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jasmine.WaitsForBlock.TIMEOUT_INCREMENT = 10;
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jasmine.WaitsForBlock.prototype.execute = function(onComplete) {
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this.env.reporter.log('>> Jasmine waiting for ' + (this.message || 'something to happen'));
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var latchFunctionResult;
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try {
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latchFunctionResult = this.latchFunction.apply(this.spec);
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} catch (e) {
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this.spec.fail(e);
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onComplete();
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return;
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}
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if (latchFunctionResult) {
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onComplete();
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} else if (this.totalTimeSpentWaitingForLatch >= this.timeout) {
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var message = 'timed out after ' + this.timeout + ' msec waiting for ' + (this.message || 'something to happen');
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this.spec.fail({
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name: 'timeout',
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message: message
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});
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this.abort = true;
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onComplete();
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} else {
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this.totalTimeSpentWaitingForLatch += jasmine.WaitsForBlock.TIMEOUT_INCREMENT;
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var self = this;
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this.env.setTimeout(function() {
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self.execute(onComplete);
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}, jasmine.WaitsForBlock.TIMEOUT_INCREMENT);
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}
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}; |