openmct/platform/features/table/test/TelemetryCollectionSpec.js

213 lines
9.0 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/TelemetryCollection"
],
function (TelemetryCollection) {
describe("A telemetry collection", function () {
var collection;
var telemetryObjects;
var ms;
var integerTextMap = ["ZERO", "ONE", "TWO", "THREE", "FOUR", "FIVE",
"SIX", "SEVEN", "EIGHT", "NINE", "TEN", "ELEVEN"];
beforeEach(function () {
telemetryObjects = [0,9,2,4,7,8,5,1,3,6].map(function (number) {
ms = number * 1000;
return {
timestamp: ms,
value: {
integer: number,
text: integerTextMap[number]
}
};
});
collection = new TelemetryCollection();
});
it("Sorts inserted telemetry by specified field",
function () {
collection.sort('value.integer');
collection.add(telemetryObjects);
expect(collection.telemetry[0].value.integer).toBe(0);
expect(collection.telemetry[1].value.integer).toBe(1);
expect(collection.telemetry[2].value.integer).toBe(2);
expect(collection.telemetry[3].value.integer).toBe(3);
collection.sort('value.text');
expect(collection.telemetry[0].value.text).toBe("EIGHT");
expect(collection.telemetry[1].value.text).toBe("FIVE");
expect(collection.telemetry[2].value.text).toBe("FOUR");
expect(collection.telemetry[3].value.text).toBe("NINE");
}
);
describe("on bounds change", function () {
var discardedCallback;
beforeEach(function () {
discardedCallback = jasmine.createSpy("discarded");
collection.on("discarded", discardedCallback);
collection.sort("timestamp");
collection.add(telemetryObjects);
collection.bounds({start: 5000, end: 8000});
});
it("emits an event indicating that telemetry has " +
"been discarded", function () {
expect(discardedCallback).toHaveBeenCalled();
});
it("discards telemetry data with a time stamp " +
"before specified start bound", function () {
var discarded = discardedCallback.mostRecentCall.args[0];
// Expect 5 because as an optimization, the TelemetryCollection
// will not consider telemetry values that exceed the upper
// bounds. Arbitrary bounds changes in which the end bound is
// decreased is assumed to require a new historical query, and
// hence re-population of the collection anyway
expect(discarded.length).toBe(5);
expect(discarded[0].value.integer).toBe(0);
expect(discarded[1].value.integer).toBe(1);
expect(discarded[4].value.integer).toBe(4);
});
});
describe("when adding telemetry to a collection", function () {
var addedCallback;
beforeEach(function () {
collection.sort("timestamp");
collection.add(telemetryObjects);
addedCallback = jasmine.createSpy("added");
collection.on("added", addedCallback);
});
it("emits an event",
function () {
var addedObject = {
timestamp: 10000,
value: {
integer: 10,
text: integerTextMap[10]
}
};
collection.add([addedObject]);
expect(addedCallback).toHaveBeenCalledWith([addedObject]);
}
);
it("inserts in the correct order",
function () {
var addedObjectA = {
timestamp: 10000,
value: {
integer: 10,
text: integerTextMap[10]
}
};
var addedObjectB = {
timestamp: 11000,
value: {
integer: 11,
text: integerTextMap[11]
}
};
collection.add([addedObjectB, addedObjectA]);
expect(collection.telemetry[11]).toBe(addedObjectB);
}
);
it("maintains insertion order in the case of duplicate time stamps",
function () {
var addedObjectA = {
timestamp: 10000,
value: {
integer: 10,
text: integerTextMap[10]
}
};
var addedObjectB = {
timestamp: 10000,
value: {
integer: 11,
text: integerTextMap[11]
}
};
collection.add([addedObjectA, addedObjectB]);
expect(collection.telemetry[11]).toBe(addedObjectB);
}
);
});
describe("buffers telemetry", function () {
var addedObjectA;
var addedObjectB;
beforeEach(function () {
collection.sort("timestamp");
collection.add(telemetryObjects);
addedObjectA = {
timestamp: 10000,
value: {
integer: 10,
text: integerTextMap[10]
}
};
addedObjectB = {
timestamp: 11000,
value: {
integer: 11,
text: integerTextMap[11]
}
};
collection.bounds({start: 0, end: 10000});
collection.add([addedObjectA, addedObjectB]);
});
it("when it falls outside of bounds", function () {
expect(collection.highBuffer).toBeDefined();
expect(collection.highBuffer.length).toBe(1);
expect(collection.highBuffer[0]).toBe(addedObjectB);
});
it("and adds it to collection when it falls within bounds", function () {
expect(collection.telemetry.length).toBe(11);
collection.bounds({start: 0, end: 11000});
expect(collection.telemetry.length).toBe(12);
expect(collection.telemetry[11]).toBe(addedObjectB);
});
it("and removes it from the buffer when it falls within bounds", function () {
expect(collection.highBuffer.length).toBe(1);
collection.bounds({start: 0, end: 11000});
expect(collection.highBuffer.length).toBe(0);
});
});
});
}
);