Using Default Parameter Values in Automated E2E Test Scripts with Ruby

Using Ruby default parameter in your E2E test scripts can make your scripts more readable.

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Below is an example of a typical user login test implemented using Selenium WebDriver in Ruby.

it "User Login OK" do
   driver.find_element(:id, "username").sendkeys("whenwise")
   driver.find_element(:id, "password").sendkeys("test01")
   driver.find_element(:input, "//input[@value='Sign in']").click
   #...
end

Obviously, we are going to use these three test steps often in other tests. Following the Maintainable Automated Test Design, make it a reusable function (by invoking a “Extract Function” refactoring, which TestWise can do).

def login(username, password)
  driver.find_element(:id, "username").sendkeys(username)
  driver.find_element(:id, "password").sendkeys(password)
  driver.find_element(:input, "//input[@value='Sign in']").click
end


it "User Login OK" do
  login("whenwise", "test01")
  #...
end

it "User Login OK failed with a wrong password" do
  login("whenwise", "tryluck")
  #...
end

it "Other User Login OK" do
  login("buildwise", "test01")
  #...
end

it "Another User Login OK" do
  login("testwise"…