Test.AnotherWay: assertions example

This example demonstrates the usage of each assertion method. Scroll below if you want to run it and see its result.

<html><head><script type="text/javascript">
<!--
// this test page has four test functions, each makes two assertions.
// in each test function, the first assertion is ok, the second fails.

function test_ok( t )
{
	t.plan( 2 );
	var items=[1,2];
	t.ok( items.length>1, "more than one item" );
	t.fail( "no good" );
}

function test_eq( t )
{
	t.plan( 2 );
	t.eq( 2+2, 4, "addition test" );
	t.eq(  [1,"got z"],[1,2], "arrays differ" );
}

function test_like( t )
{
	t.plan( 2 );
	t.like( "15", /^[\d]+/, "numbers match" );
	t.like( "z15", /^[\d]+/, "numbers do not match" );
}

function test_html_eq( t )
{
	t.plan( 2 );
	t.html_eq(  document.getElementById( "sample_id" ),
			"<div id=\"sample_id\" class=\"sample\">some text</div>",
			"compare sample_id div" );
	t.html_eq( document.getElementById( "sample_id2" ),
			"<div id=\"sample_id2\" class=\"sample\">some text</div>",
			"html differs: extra node" );
}

// -->
</script></head><body>
<div id="sample_id" class="sample">some text</div>
<div id="sample_id2" class="sample">some <em>text</em></div>
</body></html>

You can see how the results look for all these assertions by running the test here:

Show it all