describe('toBeNull', function() {
  it('passes for null', function() {
    var matcher = jasmineUnderTest.matchers.toBeNull(),
      result;

    result = matcher.compare(null);
    expect(result.pass).toBe(true);
  });

  it('fails for non-null', function() {
    var matcher = jasmineUnderTest.matchers.toBeNull(),
      result;

    result = matcher.compare('foo');
    expect(result.pass).toBe(false);
  });
});