public void TestMethod1()
{
// setup
driver.Navigate().GoToUrl(exmampleUrl);
Manager manager = new Manager(driver);
string a = "3";
string b = "7";
// execute
Sniff sniff = manager.Sniffify("window", "multiply", "window_multiply", "function() { console.log('log from custom function');}");
driver.FindElement(By.Id("a")).Clear();
driver.FindElement(By.Id("a")).SendKeys(a);
driver.FindElement(By.Id("b")).Clear();
driver.FindElement(By.Id("b")).SendKeys(b);
driver.FindElement(By.Id("execute")).Click();
driver.FindElement(By.Id("execute")).Click();
var invocations = sniff.GetInvocations("window_multiply");
var lastInvocation = sniff.GetLastInvocation("window_multiply");
var parameters = manager.GetLastInvocationParams("window_multiply");
// expect
Assert.AreEqual(invocations.Length, 2);
Assert.AreEqual(lastInvocation.ExecutionParameters["a"], a, "last invocation a value is incorrect");
Assert.AreEqual(lastInvocation.ExecutionParameters["b"], b, "last invocation b value is incorrect");
Assert.AreEqual(parameters["a"], a,"parameters a value is incorrect");
Assert.AreEqual(parameters["b"], b,"parameters b value is incorrect");
Assert.IsTrue(lastInvocation.Duration > 0);
}