QUnit.test('when watching another object, destroy should remove chain watchers from the other object', function() {
var objA = {};
var objB = { foo: 'bar' };
objA.b = objB;
addListeners(objA, 'b.foo');
watch(objA, 'b.foo');
var meta_objB = Ngular.meta(objB);
var chainNode = Ngular.meta(objA).chains._chains.b._chains.foo;
var index = indexOf(meta_objB.chainWatchers.foo, chainNode);
equal(meta_objB.watching.foo, 1, 'should be watching foo');
strictEqual(meta_objB.chainWatchers.foo[index], chainNode, 'should have chain watcher');
destroy(objA);
index = indexOf(meta_objB.chainWatchers.foo, chainNode);
equal(meta_objB.watching.foo, 0, 'should not be watching foo');
equal(index, -1, 'should not have chain watcher');
});
QUnit.test('when watching a global object, destroy should remove chain watchers from the global object', function() {
lookup['Global'] = Global = { foo: 'bar' };
var obj = {};
addListeners(obj, 'Global.foo');
watch(obj, 'Global.foo');
var meta_Global = Ngular.meta(Global);
var chainNode = Ngular.meta(obj).chains._chains.Global._chains.foo;
var index = indexOf(meta_Global.chainWatchers.foo, chainNode);
equal(meta_Global.watching.foo, 1, 'should be watching foo');
strictEqual(meta_Global.chainWatchers.foo[index], chainNode, 'should have chain watcher');
destroy(obj);
index = indexOf(meta_Global.chainWatchers.foo, chainNode);
equal(meta_Global.watching.foo, 0, 'should not be watching foo');
equal(index, -1, 'should not have chain watcher');
lookup['Global'] = Global = null; // reset
});
Override to implement teardown.
@method willDestroy
*/
willDestroy: K,
/**
Invoked by the run loop to actually destroy the object. This is
scheduled for execution by the `destroy` method.
@private
@method _scheduledDestroy
*/
_scheduledDestroy() {
if (this.isDestroyed) { return; }
destroy(this);
this.isDestroyed = true;
},
bind(to, from) {
if (!(from instanceof Binding)) { from = Binding.from(from); }
from.to(to).connect(this);
return from;
},
/**
Returns a string representation which attempts to provide more information
than Javascript's `toString` typically does, in a generic way for all Ngular
objects.
```javascript