Files
polymer/test/unit/async.html
Kevin Schaaf d07e5cf7b9 More test.
2015-06-24 15:14:19 -07:00

326 lines
7.9 KiB
HTML

<!doctype html>
<!--
@license
Copyright (c) 2014 The Polymer Project Authors. All rights reserved.
This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
Code distributed by Google as part of the polymer project is also
subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
-->
<html>
<head>
<meta charset="utf-8">
<script src="../../../webcomponentsjs/webcomponents-lite.js"></script>
<script src="../../../web-component-tester/browser.js"></script>
<link rel="import" href="../../src/polymer-lib.html">
<link rel="import" href="../../src/lib/async.html">
</head>
<body>
<script>
setup(function() {
window.Async = Polymer.Async;
});
teardown(function() {
delete window.Async;
});
suite('no-wait async', function() {
test('async runs', function(done) {
var called = 0;
var callback = function() {
called++;
};
Async.run(callback);
setTimeout(function() {
assert.equal(called, 1);
done();
});
});
test('multiple asyncs of same fn run', function(done) {
var called = 0;
var callback = function() {
called++;
};
Async.run(callback);
Async.run(callback);
Async.run(callback);
setTimeout(function() {
assert.equal(called, 3);
done();
});
});
test('multiple asyncs of different fns run', function(done) {
var called1 = 0;
var called2 = 0;
var called3 = 0;
var callback1 = function() {
called1++;
};
var callback2 = function() {
called2++;
};
var callback3 = function() {
called3++;
};
Async.run(callback1);
Async.run(callback2);
Async.run(callback3);
setTimeout(function() {
assert.equal(called1, 1);
assert.equal(called2, 1);
assert.equal(called3, 1);
done();
});
});
test('error handling', function(done) {
var called1 = 0;
var called2 = 0;
var called3 = 0;
var called4 = 0;
var called5 = 0;
var callback1 = function() {
called1++;
};
var callback2 = function() {
called2++;
throw new Error('intentional error 1');
};
var callback3 = function() {
called3++;
Async.run(callback5);
throw new Error('intentional error 2');
};
var callback4 = function() {
called4++;
};
var callback5 = function() {
called5++;
};
Async.run(callback1);
Async.run(callback2);
Async.run(callback3);
Async.run(callback4);
// Force synchronous microtask, since we can't catch the error otherwise
assert.throws(function() {
Async._atEndOfMicrotask();
});
// Have been called
assert.equal(called1, 1);
assert.equal(called2, 1);
// Not yet called, due to exception
assert.equal(called3, 0);
assert.equal(called4, 0);
assert.equal(called5, 0);
// Force next synchronous microtask
assert.throws(function() {
Async._atEndOfMicrotask();
});
// Have been called
assert.equal(called1, 1);
assert.equal(called2, 1);
assert.equal(called3, 1);
// Not yet called, due to exception
assert.equal(called4, 0);
assert.equal(called5, 0);
// Wait for actual microtask, and verify remaining queue was flushed
setTimeout(function() {
// Have been called
assert.equal(called1, 1);
assert.equal(called2, 1);
assert.equal(called3, 1);
assert.equal(called4, 1);
assert.equal(called5, 1);
done();
});
});
});
suite('cancel no-wait async', function() {
test('async cancels', function(done) {
var called = 0;
var callback = function() {
called++;
};
var h = Async.run(callback);
Async.cancel(h);
setTimeout(function() {
assert.equal(called, 0);
done();
});
});
test('multiple asyncs of same fn cancel', function(done) {
var called = 0;
var callback = function() {
called++;
};
var h = [];
h.push(Async.run(callback));
h.push(Async.run(callback));
h.push(Async.run(callback));
Async.cancel(h.pop());
Async.cancel(h.pop());
Async.cancel(h.pop());
setTimeout(function() {
assert.equal(called, 0);
done();
});
});
test('multiple asyncs of different fns cancel', function(done) {
var called1 = 0;
var called2 = 0;
var called3 = 0;
var callback1 = function() {
called1++;
};
var callback2 = function() {
called2++;
};
var callback3 = function() {
called3++;
};
var h1 = Async.run(callback1);
var h2 = Async.run(callback2);
var h3 = Async.run(callback3);
Async.cancel(h1);
Async.cancel(h3);
setTimeout(function() {
assert.equal(called1, 0);
assert.equal(called2, 1);
assert.equal(called3, 0);
done();
});
});
});
suite('wait async', function() {
test('async runs', function(done) {
var called = 0;
var callback = function() {
called++;
};
Async.run(callback, 50);
setTimeout(function() {
assert.equal(called, 1);
done();
}, 51);
});
test('multiple asyncs of same fn run', function(done) {
var called = 0;
var callback = function() {
called++;
};
Async.run(callback, 50);
Async.run(callback, 50);
Async.run(callback, 200);
setTimeout(function() {
assert.equal(called, 2);
done();
}, 51);
});
test('multiple asyncs of different fns run', function(done) {
var called1 = 0;
var called2 = 0;
var called3 = 0;
var callback1 = function() {
called1++;
};
var callback2 = function() {
called2++;
};
var callback3 = function() {
called3++;
};
Async.run(callback1, 50);
Async.run(callback2, 50);
Async.run(callback3, 200);
setTimeout(function() {
assert.equal(called1, 1);
assert.equal(called2, 1);
assert.equal(called3, 0);
done();
}, 51);
});
});
suite('cancel wait async', function() {
test('async cancels', function(done) {
var called = 0;
var callback = function() {
called++;
};
var h = Async.run(callback, 50);
Async.cancel(h);
setTimeout(function() {
assert.equal(called, 0);
done();
}, 51);
});
test('multiple asyncs of same fn cancel', function(done) {
var called = 0;
var callback = function() {
called++;
};
var h = [];
h.push(Async.run(callback, 50));
h.push(Async.run(callback, 50));
h.push(Async.run(callback, 200));
Async.cancel(h.pop());
Async.cancel(h.pop());
Async.cancel(h.pop());
setTimeout(function() {
assert.equal(called, 0);
done();
}, 51);
});
test('multiple asyncs of different fns cancel', function(done) {
var called1 = 0;
var called2 = 0;
var called3 = 0;
var callback1 = function() {
called1++;
};
var callback2 = function() {
called2++;
};
var callback3 = function() {
called3++;
};
var h1 = Async.run(callback1, 50);
var h2 = Async.run(callback2, 50);
var h3 = Async.run(callback3, 200);
Async.cancel(h1);
Async.cancel(h3);
setTimeout(function() {
assert.equal(called1, 0);
assert.equal(called2, 1);
assert.equal(called3, 0);
done();
}, 51);
});
});
</script>
</body>
</html>