michael@0: // A Map iterator does not iterate over new entries added after it throws StopIteration.
michael@0: 
michael@0: load(libdir + "iteration.js");
michael@0: 
michael@0: var map = Map();
michael@0: var iter0 = map[std_iterator](), iter1 = map[std_iterator]();
michael@0: assertIteratorDone(iter0, undefined);  // closes iter0
michael@0: map.set(1, 2);
michael@0: assertIteratorDone(iter0, undefined);  // already closed
michael@0: assertIteratorNext(iter1, [1, 2]);     // was not yet closed