openmct/platform/telemetry/test/TelemetryQueueSpec.js

75 lines
2.9 KiB
JavaScript

/*****************************************************************************
* Open MCT, Copyright (c) 2014-2016, 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/TelemetryQueue"],
function (TelemetryQueue) {
describe("The telemetry queue", function () {
var queue;
beforeEach(function () {
// put, isEmpty, dequeue
queue = new TelemetryQueue();
});
it("stores elements by key", function () {
queue.put("a", { someKey: "some value" });
expect(queue.poll())
.toEqual({ a: { someKey: "some value" }});
});
it("merges non-overlapping keys", function () {
queue.put("a", { someKey: "some value" });
queue.put("b", 42);
expect(queue.poll())
.toEqual({ a: { someKey: "some value" }, b: 42 });
});
it("adds new objects for repeated keys", function () {
queue.put("a", { someKey: "some value" });
queue.put("a", { someKey: "some other value" });
queue.put("b", 42);
expect(queue.poll())
.toEqual({ a: { someKey: "some value" }, b: 42 });
expect(queue.poll())
.toEqual({ a: { someKey: "some other value" } });
});
it("reports emptiness", function () {
expect(queue.isEmpty()).toBeTruthy();
queue.put("a", { someKey: "some value" });
queue.put("a", { someKey: "some other value" });
queue.put("b", 42);
expect(queue.isEmpty()).toBeFalsy();
queue.poll();
expect(queue.isEmpty()).toBeFalsy();
queue.poll();
expect(queue.isEmpty()).toBeTruthy();
});
});
}
);