values-entries-indexed.js

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function assertSameEntries(actual, expected) {

    assertEq(actual.length, expected.length);

    for (let i = 0; i < expected.length; ++i)

        assertEqArray(actual[i], expected[i]);

// Test Object.keys/values/entries on objects with indexed properties.

// Empty dense elements, test with array and plain object.

    let array = [];

    assertEqArray(Object.keys(array), []);

    assertEqArray(Object.values(array), []);

    assertSameEntries(Object.entries(array), []);

    let object = {};

    assertEqArray(Object.keys(object), []);

    assertEqArray(Object.values(object), []);

    assertSameEntries(Object.entries(object), []);

// Dense elements only, test with array and plain object.

    let array = [1, 2, 3];

    assertEqArray(Object.keys(array), ["0", "1", "2"]);

    assertEqArray(Object.values(array), [1, 2, 3]);

    assertSameEntries(Object.entries(array), [["0", 1], ["1", 2], ["2", 3]]);

    let object = {0: 4, 1: 5, 2: 6};

    assertEqArray(Object.keys(object), ["0", "1", "2"]);

    assertEqArray(Object.values(object), [4, 5, 6]);

    assertSameEntries(Object.entries(object), [["0", 4], ["1", 5], ["2", 6]]);

// Extra indexed properties only, test with array and plain object.

    let array = [];

    Object.defineProperty(array, 0, {configurable: true, enumerable: true, value: 123});

    assertEqArray(Object.keys(array), ["0"]);

    assertEqArray(Object.values(array), [123]);

    assertSameEntries(Object.entries(array), [["0", 123]]);

    let object = [];

    Object.defineProperty(object, 0, {configurable: true, enumerable: true, value: 123});

    assertEqArray(Object.keys(object), ["0"]);

    assertEqArray(Object.values(object), [123]);

    assertSameEntries(Object.entries(object), [["0", 123]]);

// Dense and extra indexed properties, test with array and plain object.

    let array = [1, 2, 3];

    Object.defineProperty(array, 0, {writable: false});

    assertEqArray(Object.keys(array), ["0", "1", "2"]);

    assertEqArray(Object.values(array), [1, 2, 3]);

    assertSameEntries(Object.entries(array), [["0", 1], ["1", 2], ["2", 3]]);

    let object = {0: 4, 1: 5, 2: 6};

    Object.defineProperty(object, 0, {writable: false});

    assertEqArray(Object.keys(object), ["0", "1", "2"]);

    assertEqArray(Object.values(object), [4, 5, 6]);

    assertSameEntries(Object.entries(object), [["0", 4], ["1", 5], ["2", 6]]);

if (typeof reportCompare === "function")

    reportCompare(true, true);