import { ManagedArray } from "../../Source/Cesium.js";
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describe("Core/ManagedArray", function () {
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function expectTrailingReferenceToBeRemoved(managedArray) {
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var array = managedArray._array;
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var length = managedArray._length;
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var reservedLength = array.length;
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for (var i = length; i < reservedLength; ++i) {
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expect(array[i]).toBeUndefined();
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}
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}
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it("constructor has expected default values", function () {
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var array = new ManagedArray();
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expect(array.length).toEqual(0);
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});
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it("constructor initializes length", function () {
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var array = new ManagedArray(10);
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expect(array.length).toEqual(10);
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expect(array.values.length).toEqual(10);
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});
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it("can get and set values", function () {
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var length = 10;
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var array = new ManagedArray(length);
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var i;
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for (i = 0; i < length; ++i) {
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array.set(i, i * i);
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}
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for (i = 0; i < length; ++i) {
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expect(array.get(i)).toEqual(i * i);
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expect(array.values[i]).toEqual(i * i);
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}
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});
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it("get throws if index does not exist", function () {
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var array = new ManagedArray();
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array.reserve(5);
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expect(array.values.length).toEqual(5);
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expect(function () {
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array.get(5);
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}).toThrowDeveloperError();
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});
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it("set throws if index invalid", function () {
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var array = new ManagedArray();
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array.resize(10);
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expect(function () {
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array.set(undefined, 5);
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}).toThrowDeveloperError();
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});
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it("length setter throws if length is less than 0", function () {
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var array = new ManagedArray();
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expect(function () {
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array.length = -1;
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}).toThrowDeveloperError();
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});
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it("set resizes array", function () {
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var array = new ManagedArray();
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array.set(0, "a");
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expect(array.length).toEqual(1);
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array.set(5, "b");
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expect(array.length).toEqual(6);
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array.set(2, "c");
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expect(array.length).toEqual(6);
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});
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it("peeks at the last element of the array", function () {
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var array = new ManagedArray();
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expect(array.peek()).toBeUndefined();
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array.push(0);
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expect(array.peek()).toBe(0);
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array.push(1);
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array.push(2);
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expect(array.peek()).toBe(2);
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});
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it("can push values", function () {
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var array = new ManagedArray();
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var length = 10;
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for (var i = 0; i < length; ++i) {
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var val = Math.random();
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array.push(val);
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expect(array.length).toEqual(i + 1);
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expect(array.values.length).toEqual(i + 1);
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expect(array.get(i)).toEqual(val);
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expect(array.values[i]).toEqual(val);
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}
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});
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it("can pop values", function () {
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var length = 10;
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var array = new ManagedArray(length);
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var i;
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for (i = 0; i < length; ++i) {
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array.set(i, Math.random());
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}
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for (i = length - 1; i >= 0; --i) {
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var val = array.get(i);
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expect(array.pop()).toEqual(val);
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expect(array.length).toEqual(i);
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expect(array.values.length).toEqual(length);
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}
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});
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it("pop removes trailing references", function () {
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var length = 10;
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var array = new ManagedArray(length);
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array.set(0, Math.random());
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array.set(1, Math.random());
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array.set(2, Math.random());
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array.pop();
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array.pop();
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expectTrailingReferenceToBeRemoved(array);
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});
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it("pop returns undefined if array is empty", function () {
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var array = new ManagedArray();
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array.push(1);
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expect(array.pop()).toBe(1);
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expect(array.pop()).toBeUndefined();
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});
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it("reserve throws if length is less than 0", function () {
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var array = new ManagedArray();
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expect(function () {
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array.reserve(-1);
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}).toThrowDeveloperError();
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});
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it("reserve", function () {
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var array = new ManagedArray(2);
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array.reserve(10);
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expect(array.values.length).toEqual(10);
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expect(array.length).toEqual(2);
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array.reserve(20);
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expect(array.values.length).toEqual(20);
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expect(array.length).toEqual(2);
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array.reserve(5);
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expect(array.values.length).toEqual(20);
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expect(array.length).toEqual(2);
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});
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it("resize throws if length is less than 0", function () {
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var array = new ManagedArray();
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expect(function () {
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array.resize(-1);
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}).toThrowDeveloperError();
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});
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it("resize", function () {
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var array = new ManagedArray(2);
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array.resize(10);
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expect(array.values.length).toEqual(10);
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expect(array.length).toEqual(10);
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array.resize(20);
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expect(array.values.length).toEqual(20);
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expect(array.length).toEqual(20);
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array.resize(5);
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expect(array.values.length).toEqual(20);
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expect(array.length).toEqual(5);
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});
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it("resize removes trailing references", function () {
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var length = 10;
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var array = new ManagedArray(length);
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array.set(0, Math.random());
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array.set(1, Math.random());
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array.set(2, Math.random());
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array.resize(1);
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expectTrailingReferenceToBeRemoved(array);
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});
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it("trim", function () {
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var array = new ManagedArray(2);
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array.reserve(10);
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expect(array.length).toEqual(2);
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expect(array.values.length).toEqual(10);
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array.trim();
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expect(array.values.length).toEqual(2);
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array.trim(5);
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expect(array.length).toEqual(2);
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expect(array.values.length).toEqual(5);
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array.trim(3);
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expect(array.length).toEqual(2);
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expect(array.values.length).toEqual(3);
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});
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});
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