Add race condition tests.

Author: gskinner

tests/spec/TweenSpec.js

@@ -96,8 +96,47 @@ describe("TweenJS", function () {
 		});
 	});
 
-	
-	
+	describe("Race Conditions", function () {
+		it("don't run newly added tweens", function (done) {
+			var counter = 10;
+			function addAnother() {
+				if (counter < 0) { return; }
+				counter--;
+				createjs.Tween.get().wait(10).call(addAnother);
+			}
+			for (var i=0; i<counter; i++) {
+				createjs.Tween.get().wait(10).call(addAnother);
+			}
+			createjs.Tween.tick(1000, false);
+			expect(counter).toBe(0);
+			done();
+			
+		});
+
+		it("don't run removed tweens", function (done) {
+			var counter = 1;
+			function ended() { counter--; }
+			var tween = createjs.Tween.get().wait(10).call(ended);
+			var tween2 = createjs.Tween.get().wait(10).call(ended);
+			tween.call(function() { tween2.paused = true; });
+			createjs.Tween.tick(1000, false)
+			expect(counter).toBe(0);
+			done();
+		});
+		
+		it("do run tweens after a removed tween", function (done) {
+			var counter = 2;
+			function ended() { counter--; }
+			var tween = createjs.Tween.get().wait(10).call(ended);
+			var tween2 = createjs.Tween.get().wait(10).call(ended);
+			var tween3 = createjs.Tween.get().wait(10).call(ended);
+			tween.call(function() { tween2.paused = true; });
+			createjs.Tween.tick(1000, false)
+			expect(counter).toBe(0);
+			done();
+		});
+	});
+
 	describe("Events", function () {
 		it("change", function (done) {
 			var obj = {x: 0};