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<!DOCTYPE html>
<html>
<!--
Copyright 2007 The Closure Library Authors. All Rights Reserved.
Use of this source code is governed by the Apache License, Version 2.0.
See the COPYING file for details.
-->
<head>
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>Closure Unit Tests - goog.testing.MockClock</title>
<script src="../base.js"></script>
<script>
goog.require('goog.events');
goog.require('goog.functions');
goog.require('goog.testing.MockClock');
goog.require('goog.testing.PropertyReplacer');
goog.require('goog.testing.jsunit');
goog.require('goog.testing.recordFunction');
</script>
</head>
<body>
<script>
var stubs = new goog.testing.PropertyReplacer();
function tearDown() {
stubs.reset();
}
function testMockClockWasInstalled() {
var clock = new goog.testing.MockClock();
var originalTimeout = window.setTimeout;
clock.install();
assertNotEquals(window.setTimeout, originalTimeout);
setTimeout(function() {}, 100);
assertEquals(1, clock.getTimeoutsMade());
setInterval(function() {}, 200);
assertEquals(2, clock.getTimeoutsMade());
clock.uninstall();
assertEquals(window.setTimeout, originalTimeout);
assertNull(clock.replacer_);
}
function testSetTimeoutAndTick() {
var clock = new goog.testing.MockClock(true);
var m5 = false, m10 = false, m15 = false, m20 = false;
setTimeout(function() { m5 = true; }, 5);
setTimeout(function() { m10 = true; }, 10);
setTimeout(function() { m15 = true; }, 15);
setTimeout(function() { m20 = true; }, 20);
assertEquals(4, clock.getTimeoutsMade());
assertEquals(4, clock.tick(4));
assertEquals(4, clock.getCurrentTime());
assertFalse(m5);
assertFalse(m10);
assertFalse(m15);
assertFalse(m20);
assertEquals(5, clock.tick(1));
assertEquals(5, clock.getCurrentTime());
assertTrue('m5 should now be true', m5);
assertFalse(m10);
assertFalse(m15);
assertFalse(m20);
assertEquals(10, clock.tick(5));
assertEquals(10, clock.getCurrentTime());
assertTrue('m5 should be true', m5);
assertTrue('m10 should now be true', m10);
assertFalse(m15);
assertFalse(m20);
assertEquals(15, clock.tick(5));
assertEquals(15, clock.getCurrentTime());
assertTrue('m5 should be true', m5);
assertTrue('m10 should be true', m10);
assertTrue('m15 should now be true', m15);
assertFalse(m20);
assertEquals(20, clock.tick(5));
assertEquals(20, clock.getCurrentTime());
assertTrue('m5 should be true', m5);
assertTrue('m10 should be true', m10);
assertTrue('m15 should be true', m15);
assertTrue('m20 should now be true', m20);
clock.uninstall();
}
function testSetInterval() {
var clock = new goog.testing.MockClock(true);
var times = 0
setInterval(function() { times++; }, 100);
clock.tick(500);
assertEquals(5, times);
clock.tick(100);
assertEquals(6, times);
clock.tick(100);
assertEquals(7, times);
clock.tick(50);
assertEquals(7, times);
clock.tick(50);
assertEquals(8, times);
clock.uninstall();
}
function testRequestAnimationFrame() {
goog.global.requestAnimationFrame = function () {
};
var clock = new goog.testing.MockClock(true);
var times = [];
var recFunc = goog.testing.recordFunction(function(now) {
times.push(now);
});
goog.global.requestAnimationFrame(recFunc);
clock.tick(50);
assertEquals(1, recFunc.getCallCount());
assertEquals(20, times[0]);
goog.global.requestAnimationFrame(recFunc);
clock.tick(100);
assertEquals(2, recFunc.getCallCount());
assertEquals(70, times[1]);
clock.uninstall();
}
function testClearTimeout() {
var clock = new goog.testing.MockClock(true);
var ran = false;
var c = setTimeout(function() { ran = true; }, 100);
clock.tick(50);
assertFalse(ran);
clearTimeout(c);
clock.tick(100);
assertFalse(ran);
clock.uninstall();
}
function testClearInterval() {
var clock = new goog.testing.MockClock(true);
var times = 0
var c = setInterval(function() { times++; }, 100);
clock.tick(500);
assertEquals(5, times);
clock.tick(100);
assertEquals(6, times);
clock.tick(100);
clearInterval(c);
assertEquals(7, times);
clock.tick(50);
assertEquals(7, times);
clock.tick(50);
assertEquals(7, times);
clock.uninstall();
}
function testClearInterval2() {
// Tests that we can clear the interval from inside the function
var clock = new goog.testing.MockClock(true);
var times = 0
var c = setInterval(function() {
times++;
if (times == 6) {
clearInterval(c);
}
}, 100);
clock.tick(500);
assertEquals(5, times);
clock.tick(100);
assertEquals(6, times);
clock.tick(100);
assertEquals(6, times);
clock.tick(50);
assertEquals(6, times);
clock.tick(50);
assertEquals(6, times);
clock.uninstall();
}
function testCancelRequestAnimationFrame() {
goog.global.requestAnimationFrame = function () {
};
goog.global.cancelRequestAnimationFrame = function () {
};
var clock = new goog.testing.MockClock(true);
var ran = false;
var c = goog.global.requestAnimationFrame(function() { ran = true; });
clock.tick(10);
assertFalse(ran);
goog.global.cancelRequestAnimationFrame(c);
clock.tick(20);
assertFalse(ran);
clock.uninstall();
}
function testMockGoogNow() {
assertNotEquals(0, goog.now());
var clock = new goog.testing.MockClock(true);
assertEquals(0, goog.now());
clock.tick(50);
assertEquals(50, goog.now());
clock.uninstall();
assertNotEquals(50, goog.now());
}
function testTimeoutDelay() {
var clock = new goog.testing.MockClock(true);
var m5 = false, m10 = false, m20 = false;
setTimeout(function() { m5 = true; }, 5);
setTimeout(function() { m10 = true; }, 10);
setTimeout(function() { m20 = true; }, 20);
// Fire 3ms early, so m5 fires at t=2
clock.setTimeoutDelay(-3);
clock.tick(1);
assertFalse(m5);
assertFalse(m10);
clock.tick(1);
assertTrue(m5);
assertFalse(m10);
// Fire 3ms late, so m10 fires at t=13
clock.setTimeoutDelay(3);
assertEquals(12, clock.tick(10));
assertEquals(12, clock.getCurrentTime());
assertFalse(m10);
clock.tick(1);
assertTrue(m10);
assertFalse(m20);
// Fire 10ms early, so m20 fires now, since it's after t=10
clock.setTimeoutDelay(-10);
assertFalse(m20);
assertEquals(14, clock.tick(1));
assertEquals(14, clock.getCurrentTime());
assertTrue(m20);
clock.uninstall();
}
function testTimerCallbackCanCreateIntermediateTimer() {
var clock = new goog.testing.MockClock(true);
var sequence = [];
// Create 3 timers: 1, 2, and 3. Timer 1 should fire at T=1, timer 2 at
// T=2, and timer 3 at T=3. The catch: Timer 2 is created by the
// callback within timer 0.
// Testing method: Create a simple string sequencing each timer and at
// what time it fired.
setTimeout(function() {
sequence.push('timer1 at T=' + goog.now());
setTimeout(function() {
sequence.push('timer2 at T=' + goog.now());
}, 1);
}, 1);
setTimeout(function() {
sequence.push('timer3 at T=' + goog.now());
}, 3);
clock.tick(4);
assertEquals(
'Each timer should fire in sequence at the correct time.',
'timer1 at T=1, timer2 at T=2, timer3 at T=3',
sequence.join(', '));
clock.uninstall();
}
function testCorrectArgumentsPassedToCallback() {
var clock = new goog.testing.MockClock(true);
var timeoutId;
var timeoutExecuted = false;
timeoutId = setTimeout(function(arg) {
assertEquals('"this" must be goog.global',
goog.global, this);
assertEquals('The timeout ID must be the first parameter',
timeoutId, arg);
assertEquals('Exactly one argument must be passed',
1, arguments.length);
timeoutExecuted = true;
}, 1);
clock.tick(4);
assertTrue('The timeout was not executed', timeoutExecuted);
clock.uninstall();
}
function testTickZero() {
var clock = new goog.testing.MockClock(true);
var calls = 0;
setTimeout(function() {
assertEquals('I need to be first', 0, calls);
calls++;
}, 0);
setTimeout(function() {
assertEquals('I need to be second', 1, calls);
calls++;
}, 0);
clock.tick(0);
assertEquals(2, calls);
setTimeout(function() {
assertEquals('I need to be third', 2, calls);
calls++;
}, 0);
clock.tick(0);
assertEquals(3, calls);
assertEquals('Time should still be zero', 0, goog.now());
clock.uninstall();
}
function testReset() {
var clock = new goog.testing.MockClock(true);
setTimeout(function() {
fail('Timeouts should be cleared after a reset');
}, 0);
clock.reset();
clock.tick(999999);
clock.uninstall();
}
function testQueueInsertionHelper() {
var queue = [];
function queueToString() {
var buffer = [];
for (var i = 0; i < queue.length; i++) {
buffer.push(queue[i].runAtMillis);
}
return buffer.join(',');
}
goog.testing.MockClock.insert_({runAtMillis: 2}, queue);
assertEquals('Only item',
'2', queueToString());
goog.testing.MockClock.insert_({runAtMillis: 4}, queue);
assertEquals('Biggest item',
'4,2', queueToString());
goog.testing.MockClock.insert_({runAtMillis: 5}, queue);
assertEquals('An even bigger item',
'5,4,2', queueToString());
goog.testing.MockClock.insert_({runAtMillis: 1}, queue);
assertEquals('Smallest item',
'5,4,2,1', queueToString());
goog.testing.MockClock.insert_({runAtMillis: 1, dup: true}, queue);
assertEquals('Duplicate smallest item',
'5,4,2,1,1', queueToString());
assertTrue('Duplicate item comes at a smaller index', queue[3].dup);
goog.testing.MockClock.insert_({runAtMillis: 3}, queue);
goog.testing.MockClock.insert_({runAtMillis: 3, dup:true}, queue);
assertEquals('Duplicate a middle item',
'5,4,3,3,2,1,1', queueToString());
assertTrue('Duplicate item comes at a smaller index', queue[2].dup);
}
function testIsTimeoutSet() {
var clock = new goog.testing.MockClock(true);
var timeoutKey = setTimeout(function(){}, 1);
assertTrue('Timeout ' + timeoutKey + ' should be set',
clock.isTimeoutSet(timeoutKey));
var nextTimeoutKey = timeoutKey + 1;
assertFalse('Timeout ' + nextTimeoutKey + ' should not be set',
clock.isTimeoutSet(nextTimeoutKey));
clearTimeout(timeoutKey);
assertFalse('Timeout ' + timeoutKey + ' should no longer be set',
clock.isTimeoutSet(timeoutKey));
var newTimeoutKey = setTimeout(function(){}, 1);
clock.tick(5);
assertFalse('Timeout ' + timeoutKey + ' should not be set',
clock.isTimeoutSet(timeoutKey));
assertTrue('Timeout ' + newTimeoutKey + ' should be set',
clock.isTimeoutSet(newTimeoutKey));
clock.uninstall();
}
function testBalksOnTimeoutsGreaterThanMaxInt() {
// Browsers have trouble with timeout greater than max int, so we
// want Mock Clock to fail if this happens.
var clock = new goog.testing.MockClock(true);
// Functions on window don't seem to be able to throw exceptions in
// IE6. Explicitly reading the property makes it work.
var setTimeout = window.setTimeout;
assertThrows('Timeouts > MAX_INT should fail',
function() {
setTimeout(goog.nullFunction, 2147483648);
});
assertThrows('Timeouts much greater than MAX_INT should fail',
function() {
setTimeout(goog.nullFunction, 2147483648 * 10);
});
clock.uninstall();
}
function testCorrectSetTimeoutIsRestored() {
var safe = goog.functions.error('should not have been called');
stubs.set(window, 'setTimeout', safe);
var clock = new goog.testing.MockClock(true);
assertNotEquals('setTimeout is replaced', safe, window.setTimeout);
clock.uninstall();
// NOTE: If this assertion proves to be flaky in IE, the string value of
// the two functions have to be compared as described in
// goog.testing.TestCase#finalize.
assertEquals('setTimeout is restored', safe, window.setTimeout);
}
function testMozRequestAnimationFrame() {
// Setting this function will indirectly tell the mock clock to mock it out.
stubs.set(window, 'mozRequestAnimationFrame', goog.nullFunction);
var clock = new goog.testing.MockClock(true);
var mozBeforePaint = goog.testing.recordFunction();
goog.events.listen(window, 'MozBeforePaint', mozBeforePaint);
window.mozRequestAnimationFrame(null);
assertEquals(0, mozBeforePaint.getCallCount());
clock.tick(goog.testing.MockClock.REQUEST_ANIMATION_FRAME_TIMEOUT);
assertEquals(1, mozBeforePaint.getCallCount());
clock.dispose();
}
function testClearBeforeSet() {
var clock = new goog.testing.MockClock(true);
var expectedId = 1;
window.clearTimeout(expectedId);
var fn = goog.testing.recordFunction();
var actualId = window.setTimeout(fn, 0);
assertEquals(
'In order for this test to work, we have to guess the ids in advance',
expectedId, actualId);
clock.tick(1);
assertEquals(1, fn.getCallCount());
clock.dispose();
}
</script>
</body>
</html>
|
