openmct/platform/commonUI/edit/test/services/TransactionSpec.js

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/*****************************************************************************
* Open MCT, Copyright (c) 2014-2018, United States Government
* as represented by the Administrator of the National Aeronautics and Space
* Administration. All rights reserved.
*
* Open MCT is licensed under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0.
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
* Open MCT includes source code licensed under additional open source
* licenses. See the Open Source Licenses file (LICENSES.md) included with
* this source code distribution or the Licensing information page available
* at runtime from the About dialog for additional information.
*****************************************************************************/
define(
["../../src/services/Transaction"],
function (Transaction) {
describe("A Transaction", function () {
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var mockLog,
transaction;
beforeEach(function () {
mockLog = jasmine.createSpyObj(
'$log',
['warn', 'info', 'error', 'debug']
);
transaction = new Transaction(mockLog);
});
it("initially has a size of zero", function () {
expect(transaction.size()).toEqual(0);
});
describe("when callbacks are added", function () {
var mockCommit,
mockCancel,
remove;
beforeEach(function () {
mockCommit = jasmine.createSpy('commit');
mockCancel = jasmine.createSpy('cancel');
remove = transaction.add(mockCommit, mockCancel);
});
it("reports a new size", function () {
expect(transaction.size()).toEqual(1);
});
it("returns a function to remove those callbacks", function () {
expect(remove).toEqual(jasmine.any(Function));
remove();
expect(transaction.size()).toEqual(0);
});
describe("and the transaction is committed", function () {
beforeEach(function () {
transaction.commit();
});
it("triggers the commit callback", function () {
expect(mockCommit).toHaveBeenCalled();
});
it("does not trigger the cancel callback", function () {
expect(mockCancel).not.toHaveBeenCalled();
});
});
describe("and the transaction is cancelled", function () {
beforeEach(function () {
transaction.cancel();
});
it("triggers the cancel callback", function () {
expect(mockCancel).toHaveBeenCalled();
});
it("does not trigger the commit callback", function () {
expect(mockCommit).not.toHaveBeenCalled();
});
});
describe("and an exception is encountered during commit", function () {
beforeEach(function () {
mockCommit.and.callFake(function () {
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throw new Error("test error");
});
transaction.commit();
});
it("logs an error", function () {
expect(mockLog.error).toHaveBeenCalled();
});
});
});
});
}
);