Tests basic correctness of ES WeakMap object

On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".


PASS WeakMap instanceof WeakMap is false
PASS WeakMap.prototype instanceof WeakMap is false
PASS new WeakMap() instanceof WeakMap is true
PASS WeakMap() threw exception TypeError: calling WeakMap constructor without new is invalid.
PASS map.set(0, 1) threw exception TypeError: Attempted to set a non-object key in a WeakMap.
PASS map.set(0.5, 1) threw exception TypeError: Attempted to set a non-object key in a WeakMap.
PASS map.set('foo', 1) threw exception TypeError: Attempted to set a non-object key in a WeakMap.
PASS map.set(true, 1) threw exception TypeError: Attempted to set a non-object key in a WeakMap.
PASS map.set(false, 1) threw exception TypeError: Attempted to set a non-object key in a WeakMap.
PASS map.set(null, 1) threw exception TypeError: Attempted to set a non-object key in a WeakMap.
PASS map.set(undefined, 1) threw exception TypeError: Attempted to set a non-object key in a WeakMap.
PASS map.get(0) is undefined.
PASS map.get(0.5) is undefined.
PASS map.get('foo') is undefined.
PASS map.get(true) is undefined.
PASS map.get(false) is undefined.
PASS map.get(null) is undefined.
PASS map.get(undefined) is undefined.
PASS map.has(0) is false
PASS map.has(0.5) is false
PASS map.has('foo') is false
PASS map.has(true) is false
PASS map.has(false) is false
PASS map.has(null) is false
PASS map.has(undefined) is false
PASS map.delete(0) is false
PASS map.delete(0.5) is false
PASS map.delete('foo') is false
PASS map.delete(true) is false
PASS map.delete(false) is false
PASS map.delete(null) is false
PASS map.delete(undefined) is false
PASS map.set(new String('foo'), 'foo') is map
PASS map.get(new String('foo')) is undefined.
PASS map.has(new String('foo')) is false
PASS map.set(object, 'foo') is map
PASS map.has(object) is true
PASS map.get(object) is 'foo'
PASS map.delete(object) is true
PASS map.has(object) is false
PASS map.delete(object) is false
PASS map.get(object) is undefined.
PASS successfullyParsed is true

TEST COMPLETE