Brittle Test

Definition:

UI tests containing procedural test code, duplicated steps and magic values

Also Known As:

Fragile Test

Code Example:

class BrittleTest
{
    [Test]
    public void Can_buy_an_Album_when_registered()
    {
        var driver = Host.Instance.Application.Browser;
        driver.Navigate().GoToUrl(driver.Url);
        driver.FindElement(By.LinkText("Admin")).Click();
        driver.FindElement(By.LinkText("Register")).Click();
        driver.FindElement(By.Id("UserName")).Clear();
        driver.FindElement(By.Id("UserName")).SendKeys("HJSimpson");
        driver.FindElement(By.Id("Password")).Clear();
        driver.FindElement(By.Id("Password")).SendKeys("!2345Qwert");
        driver.FindElement(By.Id("ConfirmPassword")).Clear();
        driver.FindElement(By.Id("ConfirmPassword")).SendKeys("!2345Qwert");
        driver.FindElement(By.CssSelector("input[type=\"submit\"]")).Click();
        driver.FindElement(By.LinkText("Disco")).Click();
        driver.FindElement(By.CssSelector("img[alt=\"Le Freak\"]")).Click();
        driver.FindElement(By.LinkText("Add to cart")).Click();
        driver.FindElement(By.LinkText("Checkout >>")).Click();
        driver.FindElement(By.Id("FirstName")).Clear();
        driver.FindElement(By.Id("FirstName")).SendKeys("Homer");
        driver.FindElement(By.Id("LastName")).Clear();
        driver.FindElement(By.Id("LastName")).SendKeys("Simpson");
        driver.FindElement(By.Id("Address")).Clear();
        driver.FindElement(By.Id("Address")).SendKeys("742 Evergreen Terrace");
        driver.FindElement(By.Id("City")).Clear();
        driver.FindElement(By.Id("City")).SendKeys("Springfield");
        driver.FindElement(By.Id("State")).Clear();
        driver.FindElement(By.Id("State")).SendKeys("Kentucky");
        driver.FindElement(By.Id("PostalCode")).Clear();
        driver.FindElement(By.Id("PostalCode")).SendKeys("123456");
        driver.FindElement(By.Id("Country")).Clear();
        driver.FindElement(By.Id("Country")).SendKeys("United States");
        driver.FindElement(By.Id("Phone")).Clear();
        driver.FindElement(By.Id("Phone")).SendKeys("2341231241");
        driver.FindElement(By.Id("Email")).Clear();
        driver.FindElement(By.Id("Email")).SendKeys("chunkylover53@aol.com");
        driver.FindElement(By.Id("PromoCode")).Clear();
        driver.FindElement(By.Id("PromoCode")).SendKeys("FREE");
        driver.FindElement(By.CssSelector("input[type=\"submit\"]")).Click();
        Assert.IsTrue(driver.PageSource.Contains("Checkout Complete"));
    }
}

References:

Quality attributes

- Code Example
- Cause and Effect
- Frequency
- Refactoring