Map-get.js - mozsearch

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// Map.prototype.get and .has basically work

var m = new Map;

function rope() {

    var s = "s";

    for (var i = 0; i < 16; i++)

        s += s;

    return s;

var keys = [undefined, null, true, false,

            0, 1, 65535, 65536, 2147483647, 2147483648, 4294967295, 4294967296,

            -1, -65536, -2147483648,

            0.5, Math.sqrt(81), Math.PI,

            Number.MAX_VALUE, -Number.MAX_VALUE, Number.MIN_VALUE, -Number.MIN_VALUE,

            NaN, Infinity, -Infinity,

            "", "\0", "a", "ab", "abcdefg", rope(),

            {}, [], /a*b/, Object.prototype, Object];

for (var i = 0; i < keys.length; i++) {

    // without being set

    var key = keys[i];

    assertEq(m.has(key), false);

    assertEq(m.get(key), undefined);

    // after being set

    var v = {};

    assertEq(m.set(key, v), m);

    assertEq(m.has(key), true);

    assertEq(m.get(key), v);

    // after being deleted

    assertEq(m.delete(key), true);

    assertEq(m.has(key), false);

    assertEq(m.get(key), undefined);

    m.set(key, v);

for (var i = 0; i < keys.length; i++)

    assertEq(m.has(keys[i]), true);