js/src/jit-test/tests/collections/Map-iterator-pairs-1.js

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1 // mapiter.next() returns an actual array.
2
3 load(libdir + "iteration.js");
4
5 var key = {};
6 var map = Map([[key, 'value']]);
7 var entry = map[std_iterator]().next().value;
8 assertEq(Array.isArray(entry), true);
9 assertEq(Object.getPrototypeOf(entry), Array.prototype);
10 assertEq(Object.isExtensible(entry), true);
11
12 assertEq(entry.length, 2);
13 var names = Object.getOwnPropertyNames(entry).sort();
14 assertEq(names.length, 3);
15 assertEq(names.join(","), "0,1,length");
16 assertEq(entry[0], key);
17 assertEq(entry[1], 'value');

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