96 lines
3.0 KiB
JavaScript
96 lines
3.0 KiB
JavaScript
defineSuite([
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'Widgets/createCommand',
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'Specs/getArguments',
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'ThirdParty/knockout'
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], function(
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createCommand,
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getArguments,
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knockout) {
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'use strict';
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var spyFunction;
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var spyFunctionReturnValue = 5;
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beforeEach(function() {
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spyFunction = jasmine.createSpy('spyFunction').and.returnValue(spyFunctionReturnValue);
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});
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it('works with default value of canExecute', function() {
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var command = createCommand(spyFunction);
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expect(command.canExecute).toBe(true);
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expect(command()).toBe(spyFunctionReturnValue);
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expect(spyFunction).toHaveBeenCalled();
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});
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it('throws when canExecute value is false', function() {
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var command = createCommand(spyFunction, false);
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expect(function() {
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command();
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}).toThrowDeveloperError();
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expect(spyFunction).not.toHaveBeenCalled();
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});
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it('throws without a func parameter', function() {
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expect(function() {
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return createCommand(undefined);
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}).toThrowDeveloperError();
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});
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it('works with custom canExecute observable', function() {
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var canExecute = knockout.observable(false);
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var command = createCommand(spyFunction, canExecute);
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expect(command.canExecute).toBe(false);
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expect(function() {
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command();
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}).toThrowDeveloperError();
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expect(spyFunction).not.toHaveBeenCalled();
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canExecute(true);
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expect(command.canExecute).toBe(true);
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expect(command()).toBe(spyFunctionReturnValue);
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expect(spyFunction).toHaveBeenCalled();
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});
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it('calls pre/post events', function() {
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var command = createCommand(spyFunction);
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var myArg = {};
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var beforeExecuteSpy = jasmine.createSpy('beforeExecute');
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command.beforeExecute.addEventListener(beforeExecuteSpy);
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var afterExecuteSpy = jasmine.createSpy('afterExecute');
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command.afterExecute.addEventListener(afterExecuteSpy);
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expect(command(myArg)).toBe(spyFunctionReturnValue);
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expect(beforeExecuteSpy.calls.count()).toEqual(1);
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expect(beforeExecuteSpy).toHaveBeenCalledWith({
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cancel : false,
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args : getArguments(myArg)
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});
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expect(afterExecuteSpy.calls.count()).toEqual(1);
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expect(afterExecuteSpy).toHaveBeenCalledWith(spyFunctionReturnValue);
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});
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it('cancels a command if beforeExecute sets cancel to true', function() {
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var command = createCommand(spyFunction);
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var myArg = {};
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var beforeExecuteSpy = jasmine.createSpy('beforeExecute').and.callFake(function(info) {
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info.cancel = true;
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});
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command.beforeExecute.addEventListener(beforeExecuteSpy);
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var afterExecuteSpy = jasmine.createSpy('afterExecute');
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command.afterExecute.addEventListener(afterExecuteSpy);
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expect(command(myArg)).toBeUndefined();
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expect(beforeExecuteSpy.calls.count()).toEqual(1);
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expect(afterExecuteSpy).not.toHaveBeenCalled();
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});
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});
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