Say I'm spying on a method like this:
spyOn(util, foo).andReturn(true);
The function under test calls util.foo multiple times.
Is it possible to have the spy return true the first time it's called, but return false the second time? Or is there a different way to go about this?
You can use spy.and.returnValues (as Jasmine 2.4).
for example
describe("A spy, when configured to fake a series of return values", function() {
beforeEach(function() {
spyOn(util, "foo").and.returnValues(true, false);
});
it("when called multiple times returns the requested values in order", function() {
expect(util.foo()).toBeTruthy();
expect(util.foo()).toBeFalsy();
expect(util.foo()).toBeUndefined();
});
});
There is some thing you must be careful about, there is another function will similar spell returnValue without s, if you use that, jasmine will not warn you.
