unit-testingjasmine

Jasmine: Matcher to be different from undefined and diferent from null (!= undefined and != null)

I noticed that if I write the expect expect(null).toBeDefined();, the test will be pass because Jasmine considers that null is an object defined but without any value.

My question is if there is a matcher that evaluates whether the object is different from both undefined and null.

Solution

  • Just use .toEqual():

    expect(context).not.toEqual(null);

    In Javascript undefined == null is true, so this test will exclude both undefined and null.