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QUnit.test('Reflect.deleteMetadata', assert => {
const { defineMetadata, hasOwnMetadata, deleteMetadata } = Reflect;
const { create } = Object;
assert.isFunction(deleteMetadata);
assert.arity(deleteMetadata, 2);
assert.name(deleteMetadata, 'deleteMetadata');
assert.looksNative(deleteMetadata);
assert.nonEnumerable(Reflect, 'deleteMetadata');
assert.throws(() => deleteMetadata('key', undefined, undefined), TypeError);
assert.false(deleteMetadata('key', {}, undefined));
let object = {};
defineMetadata('key', 'value', object, undefined);
assert.true(deleteMetadata('key', object, undefined));
const prototype = {};
defineMetadata('key', 'value', prototype, undefined);
assert.false(deleteMetadata('key', create(prototype), undefined));
object = {};
defineMetadata('key', 'value', object, undefined);
deleteMetadata('key', object, undefined);
assert.false(hasOwnMetadata('key', object, undefined));
});
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