public void ExecutionTest()
        {
            IScriptExecution execution = new ScriptExecution(Execution());

            Assert.IsTrue(execution.IsAlive);
            Assert.AreEqual(0, execution.ExecuteNext());
            Assert.IsTrue(execution.IsAlive);
            Assert.IsNull(execution.ExecuteNext());
            Assert.IsTrue(execution.IsAlive);
            Assert.AreEqual("test", execution.ExecuteNext());
            Assert.IsTrue(execution.IsAlive);
            Assert.AreEqual(12.5f, execution.ExecuteNext());
        }