/* Copyright JS Foundation and other contributors, http://js.foundation
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

var m = new Map();
assert(m.size == 0);
assert(m.set(1, 1) === m);
assert(m.has(1));
assert(m.size == 1);

assert(m.set(undefined, 123) === m);
assert(m.size == 2);
assert(m.has(undefined));
assert(m.get(undefined) === 123);

assert(m.set(null, 456) === m);
assert(m.size == 3);
assert(m.has(null));
assert(m.get(null) === 456);

assert(m.set("strItem", { x:789 }) === m);
assert(m.size == 4);
assert(m.has("str" + "Item"));
assert(m.get("st" + "rItem").x === 789);

assert(m.set(12.25, 12.25) === m);
assert(m.size == 5);
assert(m.has(12 + (function() { return 0.25 })()));
assert(m.get(13 - (function() { return 0.75 })()) === 12.25);

assert(m.delete(1))
assert(m.size == 4);
assert(!m.has(1));
assert(m.get(1) === undefined);

assert(!m.delete(2));

assert(m.delete(12 + (function() { return 0.25 })()));
assert(m.size == 3);
assert(!m.has(12.25));
assert(m.get(12.25) === undefined);

assert(m.delete("strI" + "tem"))
assert(m.delete(undefined))
assert(m.size == 1);

assert(m.delete(null))
assert(m.size == 0);

m.set(1,1)
m.set(2,2)
m.set(3,3)
m.set(1,7)
m.set(1,8)
m.set(2,7)
m.set(2,8)
m.set(3,7)
m.set(3,8)

assert(m.size == 3);
assert(m.get(1) === 8);
assert(m.get(2) === 8);
assert(m.get(3) === 8);