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<html>
<!--
This file is a fully-functioning example test case. Try opening this file in Firefox, Safari,
or Internet Explorer to see what a running test looks like.
This file demonstrates the the components involved in writing a simple test, such as:
* The necessary HTML to run a test (with the required <script> and <link rel="stylesheet"> tags),
* A "custom matcher" (i.e., a custom assertion) to make your tests more readable,
* And, a simple test with the necessary boiler-plate code to get you up and running.
Typically, these components are separated out into multiple files. To see what a more typical suite
of tests look like, look at the larger example in the examples/ directory.
-->
<head>
<!-- These are all of the necessary javascript and css files required to run your tests -->
<script src="lib/jquery-1.2.3.js"></script>
<script src="lib/jquery.fn.js"></script>
<script src="lib/jquery.print.js"></script>
<script src="lib/screw.builder.js"></script>
<script src="lib/screw.matchers.js"></script>
<script src="lib/screw.events.js"></script>
<script src="lib/screw.behaviors.js"></script>
<script src="lib/screw.mock.js"></script>
<link rel="stylesheet" href="lib/screw.css">
<script type="text/javascript">
// Here is the system under test (SUT)--that is, your application code that you would like
// to test.
foo = {
number: 2
}
</script>
<script type="text/javascript">
// Here is a Custom Matcher. A custom matcher is a custom assertion,
// tailored to your application; these help to make your tests more readable.
Screw.Matchers["be_even"] = {
match: function(expected, actual) {
return actual % 2 == 0;
},
failure_message: function(expected, actual, not) {
return 'expected ' + $.print(actual) + (not ? ' not' : '') + ' to be even';
}
}
</script>
<script type="text/javascript">
// Here is a sample test. Note that all tests are wrapped in
// "Screw.Unit(function() { ... })".
Screw.Unit(function() {
// Tests are organized into 'describes' and 'its', following the style of RSpec.
describe("foo.number", function() {
// this [before] function is run before every test
before(function() {
// restore all objects that were mocked to their original states;
TH.Mock.reset();
});
it("returns 2", function() {
// 'equal' is one among many matchers provided with the Screw.Unit distribution. It
// is smart enough to compare arrays, objects, and primitives.
expect(foo.number).to(equal, 2);
});
it("is even", function() {
// Here is a use of the custom matcher defined above.
expect(foo.number).to(be_even);
});
it("is not even when it returns 3", function() {
// And here is both a mock and the to_not version of the custom matcher
TH.Mock.obj("foo", { number: 3 });
expect(foo.number).to_not(be_even);
});
it("is even in the next test because the mock was restored", function() {
// since the before function restored the mocked objects, foo has returned to normal
expect(foo.number).to(be_even);
});
});
});
</script>
</head>
<body></body>
</html>
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