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'use strict';
describe('$$rAF', function() {
it('should queue and block animation frames', inject(function($$rAF) {
if(!$$rAF.supported) return;
var message;
$$rAF(function() {
message = 'yes';
});
expect(message).toBeUndefined();
$$rAF.flush();
expect(message).toBe('yes');
}));
it('should provide a cancellation method', inject(function($$rAF) {
if(!$$rAF.supported) return;
var present = true;
var cancel = $$rAF(function() {
present = false;
});
expect(present).toBe(true);
cancel();
try {
$$rAF.flush();
} catch(e) {};
expect(present).toBe(true);
}));
describe('$timeout fallback', function() {
it("it should use a $timeout incase native rAF isn't suppored", function() {
var timeoutSpy = jasmine.createSpy('callback');
//we need to create our own injector to work around the ngMock overrides
var injector = createInjector(['ng', function($provide) {
$provide.value('$timeout', timeoutSpy);
$provide.decorator('$window', function($delegate) {
$delegate.requestAnimationFrame = false;
$delegate.webkitRequestAnimationFrame = false;
$delegate.mozRequestAnimationFrame = false;
return $delegate;
});
}]);
var $$rAF = injector.get('$$rAF');
expect($$rAF.supported).toBe(false);
var message;
$$rAF(function() {
message = 'on';
});
expect(message).toBeUndefined();
expect(timeoutSpy).toHaveBeenCalled();
timeoutSpy.mostRecentCall.args[0]();
expect(message).toBe('on');
});
});
describe('mocks', function() {
it('should throw an error if no frames are present', inject(function($$rAF) {
if($$rAF.supported) {
var failed = false;
try {
$$rAF.flush();
} catch(e) {
failed = true;
}
expect(failed).toBe(true);
}
}));
});
});
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