84 lines
3.0 KiB
JavaScript
84 lines
3.0 KiB
JavaScript
/*global define,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/ScrollingListPopulator"],
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function (ScrollingListPopulator) {
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"use strict";
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describe("The scrolling list populator", function () {
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var mockColumns,
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mockDatas,
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mockDomainObjects,
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populator;
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function makeMockColumn(name, index) {
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var mockColumn = jasmine.createSpyObj(
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"column" + index,
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[ "getTitle", "getValue" ]
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);
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mockColumn.getTitle.andReturn(name);
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mockColumn.getValue.andCallFake(function (obj, data, i) {
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return data.getDomainValue(i);
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});
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return mockColumn;
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}
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function makeMockData(bias, index) {
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var mockData = jasmine.createSpyObj(
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"data" + index,
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[ "getDomainValue", "getPointCount" ]
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);
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mockData.getPointCount.andReturn(1000);
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mockData.getDomainValue.andCallFake(function (i) {
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return i + bias;
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});
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return mockData;
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}
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function makeMockDomainObject(name, index) {
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var mockDomainObject = jasmine.createSpyObj(
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"domainObject" + index,
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[ "getId", "getModel" ]
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);
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return mockDomainObject;
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}
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beforeEach(function () {
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mockColumns = ["A", "B", "C", "D"].map(makeMockColumn);
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mockDatas = [ 10, 0, 3 ].map(makeMockData);
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mockDomainObjects = ["A", "B", "C"].map(makeMockDomainObject);
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populator = new ScrollingListPopulator(mockColumns);
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});
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it("returns column headers", function () {
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expect(populator.getHeaders()).toEqual(["A", "B", "C", "D"]);
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});
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it("provides rows on request, with all columns in each row", function () {
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var rows = populator.getRows(mockDatas, mockDomainObjects, 84);
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expect(rows.length).toEqual(84);
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rows.forEach(function (row) {
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expect(row.length).toEqual(4); // number of columns
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});
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});
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it("returns rows in reverse domain order", function () {
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var rows = populator.getRows(mockDatas, mockDomainObjects, 84),
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previous = Number.POSITIVE_INFINITY;
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// Should always be most-recent-first; since the mockColumn
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// returns the domain value, column contents should be
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// non-increasing.
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rows.forEach(function (row) {
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expect(row[0]).not.toBeGreaterThan(previous);
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previous = row[0];
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});
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});
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});
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}
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); |