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// Test that WeakMap.get() doesn't return a gray GC thing.
function checkNotGray(value) {
// Assigning a gray GC thing to an object propery will assert.
let test = {};
test.property = value;
}
// 1. Make a black WeakMap with a gray key and gray value.
gczeal(0);
let key = {};
let value = {};
let map = new WeakMap();
map.set(key, value);
let gray = grayRoot();
gray.key = key;
addMarkObservers([map, key, value]);
gray = null;
key = null;
value = null;
gc();
let marks = getMarks();
assertEq(marks[0], "black");
assertEq(marks[1], "gray");
assertEq(marks[2], "gray");
// 2. Get our key back, which will expose it and mark it black.
key = nondeterministicGetWeakMapKeys(map)[0];
checkNotGray(key);
// 3. Look up the value in the map and check it's not gray.
value = map.get(key);
checkNotGray(value);
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