Jasmine cheat sheet

by knunery

HTML

<link href="http://blog.bandzarewicz.com/stylesheets/jasmine/jasmine.css" media="screen, projection" rel="stylesheet" type="text/css">
<script>
    // Jasmine spec runner, used in jsfiddles
window.execJasmine = function() {
  var jasmineEnv = jasmine.getEnv();
  jasmineEnv.updateInterval = 1000;

  var trivialReporter = new jasmine.TrivialReporter();

  jasmineEnv.addReporter(trivialReporter);

  jasmineEnv.specFilter = function(spec) {
    return trivialReporter.specFilter(spec);
  };

  var currentWindowOnload = window.onload;

  window.onload = function() {
    if (currentWindowOnload) {
      currentWindowOnload();
    }
    execJasmine();
  };

  function execJasmine() {
    jasmineEnv.execute();
    trivialReporter.outerDiv.className += ' show-passed';
  }

}
</script>
<script src="https://raw.github.com/pivotal/jasmine/v1.1.0/lib/jasmine-core/jasmine.js"></script>
<script src="https://raw.github.com/pivotal/jasmine/v1.1.0/lib/jasmine-core/jasmine-html.js"></script>

JavaScript

describe('toBeNull', function() {
    it('passes if subject is null', function() {
        expect(null).toBeNull();
    });

    it('fails if subject is undefined', function() {
        expect(undefined).not.toBeNull();
    });

    it('fails if subject is no null', function() {
        expect({}).not.toBeNull();
    });
});

execJasmine();