README

Usage:

assertThat("hello", matchesUsing(function($value) { return $value === "hello"; }));

Creating new custom matchers

Creating new custom matchers is made simpler with the callback matcher.

You can use describedAs() to provide a better description for the expectation.

function myCustomMatcher()
{
 return describedAs('a custom value', new CallbackMatcher(
 function($value) {
 return $value === 'my custom value';
 }
 )
}