angular-scroll-animate/bower_components/jasmine/spec/core/SpySpec.js

An Angular.js directive which allows you to perform any javascript actions (in the controller, or on the element) when an element is scrolled into, or out of, the users viewport, without any other dependencies.

describe('Spies', function () {
  it('should replace the specified function with a spy object', function() {
    var originalFunctionWasCalled = false;
    var TestClass = {
      someFunction: function() {
        originalFunctionWasCalled = true;
      }
    };
    this.spyOn(TestClass, 'someFunction');

    expect(TestClass.someFunction.wasCalled).toEqual(false);
    expect(TestClass.someFunction.callCount).toEqual(0);
    TestClass.someFunction('foo');
    expect(TestClass.someFunction.wasCalled).toEqual(true);
    expect(TestClass.someFunction.callCount).toEqual(1);
    expect(TestClass.someFunction.mostRecentCall.args).toEqual(['foo']);
    expect(TestClass.someFunction.mostRecentCall.object).toEqual(TestClass);
    expect(originalFunctionWasCalled).toEqual(false);

    TestClass.someFunction('bar');
    expect(TestClass.someFunction.callCount).toEqual(2);
    expect(TestClass.someFunction.mostRecentCall.args).toEqual(['bar']);
  });

  it('should allow you to view args for a particular call', function() {
    var originalFunctionWasCalled = false;
    var TestClass = {
      someFunction: function() {
        originalFunctionWasCalled = true;
      }
    };
    this.spyOn(TestClass, 'someFunction');

    TestClass.someFunction('foo');
    TestClass.someFunction('bar');
    expect(TestClass.someFunction.calls[0].args).toEqual(['foo']);
    expect(TestClass.someFunction.calls[1].args).toEqual(['bar']);
    expect(TestClass.someFunction.mostRecentCall.args).toEqual(['bar']);
  });

  it('should be possible to call through to the original method, or return a specific result', function() {
    var originalFunctionWasCalled = false;
    var passedArgs;
    var passedObj;
    var TestClass = {
      someFunction: function() {
        originalFunctionWasCalled = true;
        passedArgs = arguments;
        passedObj = this;
        return "return value from original function";
      }
    };

    this.spyOn(TestClass, 'someFunction').andCallThrough();
    var result = TestClass.someFunction('arg1', 'arg2');
    expect(result).toEqual("return value from original function");
    expect(originalFunctionWasCalled).toEqual(true);
    expect(passedArgs).toEqual(['arg1', 'arg2']);
    expect(passedObj).toEqual(TestClass);
    expect(TestClass.someFunction.wasCalled).toEqual(true);
  });

  it('should be possible to return a specific value', function() {
    var originalFunctionWasCalled = false;
    var TestClass = {
      someFunction: function() {
        originalFunctionWasCalled = true;
        return "return value from original function";
      }
    };

    this.spyOn(TestClass, 'someFunction').andReturn("some value");
    originalFunctionWasCalled = false;
    var result = TestClass.someFunction('arg1', 'arg2');
    expect(result).toEqual("some value");
    expect(originalFunctionWasCalled).toEqual(false);
  });

  it('should be possible to throw a specific error', function() {
    var originalFunctionWasCalled = false;
    var TestClass = {
      someFunction: function() {
        originalFunctionWasCalled = true;
        return "return value from original function";
      }
    };

    this.spyOn(TestClass, 'someFunction').andThrow(new Error('fake error'));
    var exception;
    try {
      TestClass.someFunction('arg1', 'arg2');
    } catch (e) {
      exception = e;
    }
    expect(exception.message).toEqual('fake error');
    expect(originalFunctionWasCalled).toEqual(false);
  });

  it('should be possible to call a specified function', function() {
    var originalFunctionWasCalled = false;
    var fakeFunctionWasCalled = false;
    var passedArgs;
    var passedObj;
    var TestClass = {
      someFunction: function() {
        originalFunctionWasCalled = true;
        return "return value from original function";
      }
    };

    this.spyOn(TestClass, 'someFunction').andCallFake(function() {
      fakeFunctionWasCalled = true;
      passedArgs = arguments;
      passedObj = this;
      return "return value from fake function";
    });

    var result = TestClass.someFunction('arg1', 'arg2');
    expect(result).toEqual("return value from fake function");
    expect(originalFunctionWasCalled).toEqual(false);
    expect(fakeFunctionWasCalled).toEqual(true);
    expect(passedArgs).toEqual(['arg1', 'arg2']);
    expect(passedObj).toEqual(TestClass);
    expect(TestClass.someFunction.wasCalled).toEqual(true);
  });

  it('is torn down when this.removeAllSpies is called', function() {
    var originalFunctionWasCalled = false;
    var TestClass = {
      someFunction: function() {
        originalFunctionWasCalled = true;
      }
    };
    this.spyOn(TestClass, 'someFunction');

    TestClass.someFunction('foo');
    expect(originalFunctionWasCalled).toEqual(false);

    this.removeAllSpies();

    TestClass.someFunction('foo');
    expect(originalFunctionWasCalled).toEqual(true);
  });

  it('calls removeAllSpies during spec finish', function() {
    var test = new jasmine.Spec(new jasmine.Env(), {}, 'sample test');

    this.spyOn(test, 'removeAllSpies');

    test.finish();

    expect(test.removeAllSpies).wasCalled();
  });

  it('throws an exception when some method is spied on twice', function() {
    var TestClass = { someFunction: function() {
    } };
    this.spyOn(TestClass, 'someFunction');
    var exception;
    try {
      this.spyOn(TestClass, 'someFunction');
    } catch (e) {
      exception = e;
    }
    expect(exception).toBeDefined();
  });

	
	it('to spy on an undefined method throws exception', function() {
		var TestClass = {
			someFunction : function() {
			}
		};
		function efunc() {
			this.spyOn(TestClass, 'someOtherFunction');
		};
		expect(function() {
			efunc();
		}).toThrow('someOtherFunction() method does not exist');
	
	}); 

  it('should be able to reset a spy', function() {
    var TestClass = { someFunction: function() {} };
    this.spyOn(TestClass, 'someFunction');

    expect(TestClass.someFunction).not.toHaveBeenCalled();
    TestClass.someFunction();
    expect(TestClass.someFunction).toHaveBeenCalled();
    TestClass.someFunction.reset();
    expect(TestClass.someFunction).not.toHaveBeenCalled();
    expect(TestClass.someFunction.callCount).toEqual(0);
  });

  describe("createSpyObj", function() {
    it("should create an object with a bunch of spy methods when you call jasmine.createSpyObj()", function() {
      var spyObj = jasmine.createSpyObj('BaseName', ['method1', 'method2']);
      expect(spyObj).toEqual({ method1: jasmine.any(Function), method2: jasmine.any(Function)});
      expect(spyObj.method1.identity).toEqual('BaseName.method1');
      expect(spyObj.method2.identity).toEqual('BaseName.method2');
    });

    it("should throw if you do not pass an array argument", function() {
      expect(function() {
        jasmine.createSpyObj('BaseName');
      }).toThrow('createSpyObj requires a non-empty array of method names to create spies for');
    });

    it("should throw if you pass an empty array argument", function() {
      expect(function() {
        jasmine.createSpyObj('BaseName');
      }).toThrow('createSpyObj requires a non-empty array of method names to create spies for');
    });
  });

});