134 lines
3.9 KiB
JavaScript
134 lines
3.9 KiB
JavaScript
getJasmineRequireObj().Clock = function() {
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function Clock(global, delayedFunctionSchedulerFactory, mockDate) {
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var self = this,
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realTimingFunctions = {
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setTimeout: global.setTimeout,
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clearTimeout: global.clearTimeout,
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setInterval: global.setInterval,
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clearInterval: global.clearInterval
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},
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fakeTimingFunctions = {
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setTimeout: setTimeout,
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clearTimeout: clearTimeout,
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setInterval: setInterval,
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clearInterval: clearInterval
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},
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installed = false,
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delayedFunctionScheduler,
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timer;
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self.install = function() {
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if(!originalTimingFunctionsIntact()) {
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throw new Error('Jasmine Clock was unable to install over custom global timer functions. Is the clock already installed?');
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}
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replace(global, fakeTimingFunctions);
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timer = fakeTimingFunctions;
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delayedFunctionScheduler = delayedFunctionSchedulerFactory();
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installed = true;
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return self;
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};
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self.uninstall = function() {
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delayedFunctionScheduler = null;
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mockDate.uninstall();
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replace(global, realTimingFunctions);
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timer = realTimingFunctions;
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installed = false;
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};
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self.withMock = function(closure) {
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this.install();
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try {
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closure();
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} finally {
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this.uninstall();
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}
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};
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self.mockDate = function(initialDate) {
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mockDate.install(initialDate);
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};
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self.setTimeout = function(fn, delay, params) {
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if (legacyIE()) {
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if (arguments.length > 2) {
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throw new Error('IE < 9 cannot support extra params to setTimeout without a polyfill');
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}
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return timer.setTimeout(fn, delay);
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}
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return Function.prototype.apply.apply(timer.setTimeout, [global, arguments]);
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};
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self.setInterval = function(fn, delay, params) {
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if (legacyIE()) {
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if (arguments.length > 2) {
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throw new Error('IE < 9 cannot support extra params to setInterval without a polyfill');
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}
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return timer.setInterval(fn, delay);
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}
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return Function.prototype.apply.apply(timer.setInterval, [global, arguments]);
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};
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self.clearTimeout = function(id) {
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return Function.prototype.call.apply(timer.clearTimeout, [global, id]);
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};
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self.clearInterval = function(id) {
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return Function.prototype.call.apply(timer.clearInterval, [global, id]);
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};
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self.tick = function(millis) {
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if (installed) {
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delayedFunctionScheduler.tick(millis, function(millis) { mockDate.tick(millis); });
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} else {
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throw new Error('Mock clock is not installed, use jasmine.clock().install()');
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}
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};
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return self;
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function originalTimingFunctionsIntact() {
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return global.setTimeout === realTimingFunctions.setTimeout &&
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global.clearTimeout === realTimingFunctions.clearTimeout &&
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global.setInterval === realTimingFunctions.setInterval &&
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global.clearInterval === realTimingFunctions.clearInterval;
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}
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function legacyIE() {
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//if these methods are polyfilled, apply will be present
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return !(realTimingFunctions.setTimeout || realTimingFunctions.setInterval).apply;
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}
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function replace(dest, source) {
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for (var prop in source) {
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dest[prop] = source[prop];
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}
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}
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function setTimeout(fn, delay) {
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return delayedFunctionScheduler.scheduleFunction(fn, delay, argSlice(arguments, 2));
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}
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function clearTimeout(id) {
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return delayedFunctionScheduler.removeFunctionWithId(id);
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}
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function setInterval(fn, interval) {
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return delayedFunctionScheduler.scheduleFunction(fn, interval, argSlice(arguments, 2), true);
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}
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function clearInterval(id) {
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return delayedFunctionScheduler.removeFunctionWithId(id);
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}
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function argSlice(argsObj, n) {
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return Array.prototype.slice.call(argsObj, n);
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}
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}
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return Clock;
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};
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