javascript - How to have different return values for multiple calls on a Jasmine spy -

javascript - How to have different return values for multiple calls on a Jasmine spy -

say i'm spying on method this:

spyon(util, "foo").andreturn(true);

the function under test calls util.foo multiple times.

is possible have spy homecoming true first time it's called, homecoming false sec time? or there different way go this?

you can utilize spy.and.returnvalues (as jasmine 2.4).

for example

class="snippet-code-js lang-js prettyprint-override">describe("a spy, when configured false series of homecoming values", function() { beforeeach(function() { spyon(util, "foo").and.returnvalues(true, false); }); it("when called multiple times returns requested values in order", function() { expect(util.foo()).tobetruthy(); expect(util.foo()).tobefalsy(); expect(util.foo()).tobeundefined(); }); });

javascript unit-testing jasmine