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72 lines
2.5 KiB
JavaScript
72 lines
2.5 KiB
JavaScript
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/*global define,Promise,describe,it,expect,beforeEach,waitsFor,jasmine*/
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/**
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* MergeModelsSpec. Created by vwoeltje on 11/6/14.
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*/
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define(
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["../../src/elements/PlotLineBuffer"],
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function (PlotLineBuffer) {
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"use strict";
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var TEST_INITIAL_SIZE = 10,
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TEST_MAX_SIZE = 40,
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TEST_DOMAIN_OFFSET = 42;
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describe("A plot line buffer", function () {
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var mockSeries,
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testDomainValues,
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testRangeValues,
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buffer;
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beforeEach(function () {
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testDomainValues = [ 1, 3, 7, 9, 14, 15 ];
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testRangeValues = [ 8, 0, 3, 9, 8, 11 ];
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mockSeries = jasmine.createSpyObj(
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"series",
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['getPointCount', 'getDomainValue', 'getRangeValue']
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);
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mockSeries.getPointCount.andCallFake(function () {
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return testDomainValues.length;
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});
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mockSeries.getDomainValue.andCallFake(function (i) {
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return testDomainValues[i];
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});
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mockSeries.getRangeValue.andCallFake(function (i) {
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return testRangeValues[i];
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});
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buffer = new PlotLineBuffer(
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TEST_DOMAIN_OFFSET,
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TEST_INITIAL_SIZE,
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TEST_MAX_SIZE
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);
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// Start with some data in there
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buffer.insert(mockSeries, 0);
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});
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it("allows insertion of series data", function () {
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// Convert to a regular array for checking.
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// Verify that domain/ranges were interleaved and
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// that domain offset was adjusted for.
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expect(
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Array.prototype.slice.call(buffer.getBuffer()).slice(0, 12)
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).toEqual([ -41, 8, -39, 0, -35, 3, -33, 9, -28, 8, -27, 11]);
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});
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it("finds insertion indexes", function () {
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expect(buffer.findInsertionIndex(0)).toEqual(0);
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expect(buffer.findInsertionIndex(2)).toEqual(1);
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expect(buffer.findInsertionIndex(5)).toEqual(2);
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expect(buffer.findInsertionIndex(10)).toEqual(4);
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expect(buffer.findInsertionIndex(14.5)).toEqual(5);
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expect(buffer.findInsertionIndex(20)).toEqual(6);
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// 9 is already in there, disallow insertion
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expect(buffer.findInsertionIndex(9)).toEqual(-1);
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});
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});
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}
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);
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