// Return a new set, possibly filling some dummy entries to enforce creating // multiple hash buckets. function createSet(values, n) { var xs = [...values]; for (var i = 0; i < n; ++i) {
xs.push({});
} returnnew Set(xs);
}
function runTest(fn) {
fn(0);
fn(100);
}
function testInt32(n) { var xs = [1, 2]; var ys = [3, 4]; var zs = [...xs, ...ys]; var set = createSet(xs, n);
var N = 100; var c = 0; for (var i = 0; i < N; ++i) { var z = zs[i & 3]; if (set.has(z)) c++;
}
assertEq(c, N / 2);
}
runTest(testInt32);
function testDouble(n) { var xs = [Math.PI, Infinity]; var ys = [Math.E, -Infinity]; var zs = [...xs, ...ys]; var set = createSet(xs, n);
var N = 100; var c = 0; for (var i = 0; i < N; ++i) { var z = zs[i & 3]; if (set.has(z)) c++;
}
assertEq(c, N / 2);
}
runTest(testDouble);
function testZero(n) { var xs = [0, -0]; var ys = [1, -1]; var zs = [...xs, ...ys]; var set = createSet([0], n);
var N = 100; var c = 0; for (var i = 0; i < N; ++i) { var z = zs[i & 3]; if (set.has(z)) c++;
}
assertEq(c, N / 2);
}
runTest(testZero);
function testNaN(n) { var xs = [NaN, -NaN]; var ys = [1, -1]; var zs = [...xs, ...ys]; var set = createSet([NaN], n);
var N = 100; var c = 0; for (var i = 0; i < N; ++i) { var z = zs[i & 3]; if (set.has(z)) c++;
}
assertEq(c, N / 2);
}
runTest(testNaN);
function testUndefinedAndNull(n) { var xs = [undefined, null]; var ys = [1, -1]; var zs = [...xs, ...ys]; var set = createSet(xs, n);
var N = 100; var c = 0; for (var i = 0; i < N; ++i) { var z = zs[i & 3]; if (set.has(z)) c++;
}
assertEq(c, N / 2);
}
runTest(testUndefinedAndNull);
function testBoolean(n) { var xs = [true, false]; var ys = [1, -1]; var zs = [...xs, ...ys]; var set = createSet(xs, n);
var N = 100; var c = 0; for (var i = 0; i < N; ++i) { var z = zs[i & 3]; if (set.has(z)) c++;
}
assertEq(c, N / 2);
}
runTest(testBoolean);
Messung V0.5
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