Jasmine: Test that an object is an instance of a given class

Posted Over 4 years ago. Visible to the public.

To test that an object was constructed by a given constructor function, use jasmine.any(Klass):

describe('plus()', function() {
  it ('returns a number', function() {
    let result = plus(1, 2)
    expect(result).toEqual(jasmine.any(Number))
  })
})

Also see Expecting objects as method invocation arguments.

Henning Koch
Last edit
Over 4 years ago
Henning Koch
Keywords
javascript, instanceof
License
Source code in this card is licensed under the MIT License.
Posted by Henning Koch to makandra dev (2020-01-29 09:19)