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joedotjs/gist:695acb0a6ec5db9206df

Created February 4, 2015 02:43
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  1. joedotjs created this gist Feb 4, 2015.
    78 changes: 78 additions & 0 deletions gistfile1.js
    View file
    Original file line number Diff line number Diff line change
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    var spyOn = require('./spy');
    var assert = require('assert');

    describe('spyOn', function () {

    it('should be a function', function () {
    assert(typeof spyOn === 'function', 'spyOn is not a function.');
    });

    describe('functionality', function () {

    var add = function (x, y) { return x + y; };
    var spyFn;

    beforeEach(function () {
    spyFn = spyOn(add);
    });

    it('should return a function', function () {
    assert(typeof spyFn === 'function', 'Return is not a function.');
    });

    describe('callCount', function () {

    it('should expose getCallCount function', function () {
    assert(typeof spyFn.getCallCount === 'function', 'getCallCount is not a function.')
    });

    it('should accurately record the callCount', function () {
    assert(spyFn.getCallCount() === 0, 'getCallCount() should be equal to 0');
    spyFn(2,2);
    spyFn(2,2);
    assert(spyFn.getCallCount() === 2, 'getCallCount() should be equal to 2');
    spyFn(2,2);
    spyFn(2,2);
    spyFn(2,2);
    assert(spyFn.getCallCount() === 5, 'getCallCount() should be equal to 5');
    });

    });

    describe('wasCalledWith', function () {

    it('should expose wasCalledWith function', function () {
    assert(typeof spyFn.wasCalledWith === 'function', 'wasCalledWith is not a function.')
    });

    it('should return accurate results for called with arguments', function () {
    var o = {};
    spyFn(2, 3);
    assert(spyFn.wasCalledWith(2), 'spyFn was called with 2');
    assert(!spyFn.wasCalledWith(4), 'spyFn was not called with 4');
    spyFn(o);
    assert(spyFn.wasCalledWith(o), 'spyFn was called with referenced object');
    });

    });

    describe('returned', function () {

    it('should expose returned function', function () {
    assert(typeof spyFn.returned === 'function', 'returned is not a function.')
    });

    it('should return accurate results for return values', function () {
    spyFn(2, 3);
    spyFn(5, 5);
    assert(spyFn.returned(5), 'spyFn returned with 5');
    assert(!spyFn.returned(4), 'spyFn did not return 4');
    assert(spyFn.returned(10), 'spyFn did not return 4');
    assert(!spyFn.returned({}), 'spyFn did not return this object');
    });

    });

    });

    });