openmct/platform/entanglement/test/services/MockLinkService.js
Pete Richards 4a755e259f [Entanglement] Link service returns object in new context
The link service return the object in the new context.
2015-08-06 14:55:50 -07:00

89 lines
3.2 KiB
JavaScript

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/*global define,jasmine */
define(
[
'../ControlledPromise'
],
function (ControlledPromise) {
"use strict";
/**
* MockLinkService provides the same interface as the linkService,
* returning promises where it would normally do so. At it's core,
* it is a jasmine spy object, but it also tracks the promises it
* returns and provides shortcut methods for resolving those promises
* synchronously.
*
* Usage:
*
* ```javascript
* var linkService = new MockLinkService();
*
* // validate is a standard jasmine spy.
* linkService.validate.andReturn(true);
* var isValid = linkService.validate(object, parentObject);
* expect(isValid).toBe(true);
*
* // perform returns promises and tracks them.
* var whenLinked = jasmine.createSpy('whenLinked');
* linkService.perform(object, parentObject).then(whenLinked);
* expect(whenLinked).not.toHaveBeenCalled();
* linkService.perform.mostRecentCall.resolve('someArg');
* expect(whenLinked).toHaveBeenCalledWith('someArg');
* ```
*/
function MockLinkService() {
// track most recent call of a function,
// perform automatically returns
var mockLinkService = jasmine.createSpyObj(
'MockLinkService',
[
'validate',
'perform'
]
);
mockLinkService.perform.andCallFake(function () {
var performPromise,
callExtensions,
spy;
performPromise = new ControlledPromise();
this.perform.mostRecentCall.promise = performPromise;
this.perform.calls[this.perform.calls.length - 1].promise =
performPromise;
return performPromise;
});
return mockLinkService;
}
return MockLinkService;
}
);