openmct/platform/entanglement/test/services/MockLinkService.js
larkin 9123078293 [Entanglement] Add entanglement bundle
The entanglement bundle defines move, copy, and link actions, and
exposes them as context menu actions.

* The Move action moves an object from it's current parent to a new
parent object.
* The Copy action deep-copies an object to a new parent object.
* The Link action links an object to a new parent object.

These actions are implemented by three new services: moveService,
copyService, and linkService.

Mocks are provided for each service for easy testing of components
that depend on them.

Additionally, this bundle provides a DomainObjectFactory that simplifies
the construction of mockDomainObjects for tests.

These actions are exposed to the user as context menu options.
2015-06-11 13:09:01 -07:00

79 lines
2.6 KiB
JavaScript

/*global define,jasmine */
define(
function () {
"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;
// TODO: return a proper deferred to support composing.
performPromise = jasmine.createSpyObj(
'performPromise',
['then']
);
callExtensions = {
promise: performPromise,
resolve: function (resolveWith) {
performPromise.then.calls.forEach(function (call) {
call.args[0](resolveWith);
});
}
};
spy = this.perform;
Object.keys(callExtensions).forEach(function (key) {
spy.mostRecentCall[key] = callExtensions[key];
spy.calls[spy.calls.length - 1][key] = callExtensions[key];
});
return performPromise;
});
return mockLinkService;
}
return MockLinkService;
}
);