By Matt Wynne
Your buyers wish rock-solid, bug-free software program that does precisely what they anticipate it to do. but they can not constantly articulate their principles truly sufficient that you can flip them into code. The Cucumber Book dives directly into the center of the matter: verbal exchange among humans. Cucumber saves the day; it is a trying out, verbal exchange, and necessities device - all rolled into one.
We'll enable you exhibit your clients' wild rules as a collection of transparent, executable necessities that everybody at the staff can learn. you will the best way to feed these examples into Cucumber and enable it advisor your improvement. you are going to construct simply the appropriate code to maintain your shoppers satisfied, and never a line more.
The first a part of the ebook teaches you the way to exploit the middle gains of Cucumber. you are going to the right way to use Cucumber's Gherkin DSL to describe-- in simple language - the habit your clients wish from the method. you will how one can write Ruby code that translates these simple language necessities and tests them opposed to your program. partly 2, you are going to consolidate the data you simply won with a labored example.
Although it was once born within the Ruby group, you should use Cucumber to check virtually any procedure, from an easy shell script or a Perl script, to company personal home page or a Java internet software. partly three, you will discover a variety of recipes for essentially the most universal events you will stumble upon utilizing Cucumber within the wild. you will easy methods to try out Ajax-heavy net purposes with Capybara and Selenium, leisure net providers, Ruby on Rails purposes, command-line purposes, legacy purposes and plenty more!
Written by way of the writer of Cucumber and one in every of its such a lot skilled clients and participants, The Cucumber Book is an authoritative advisor that might provide you with and your workforce all of the wisdom you must begin utilizing Cucumber with confidence.
What You Need:
Windows, Mac OS X (with XCode) or Linux
Ruby 1.9.2 and upwards
Read or Download The Cucumber Book: Behaviour-Driven Development for Testers and Developers (Pragmatic Programmers) PDF
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Extra info for The Cucumber Book: Behaviour-Driven Development for Testers and Developers (Pragmatic Programmers)
Here’s what occurs: Feature: situation: purchase Bottles of Shampoo Given the cost of a bottle of shampoo is $1. 99 When I test 2 bottles of shampoo Then the cost can be $0 anticipated: 0 received: 1. ninety nine (using ==) (RSpec::Expectations::ExpectationNotMetError) . /features/step_definitions/steps. rb:8 features/bogof. feature:5 Failing Scenarios: cucumber features/bogof. feature:2 1 state of affairs (1 failed) 3 steps (1 failed, 2 passed) 0m0. 003s A-ha! Now we all know what fee the method is charging for 2 $1. ninety nine bottles of shampoo: $1. ninety nine. (Step three. ) Now we replace the Then step of our situation to mirror our new figuring out of what the method does (step 4): Scenario: purchase Bottles of Shampoo Given the cost of a bottle of shampoo is $1. ninety nine whilst I test 2 bottles of shampoo Then the cost will be $1. ninety nine We run the state of affairs back, and this time it passes. nice! We’ve extra our first characterization try. It’s now not a lot, yet it’s a commence, and we all know that no matter what we do to the code any more, we’ll constantly have this state of affairs to inform us even if we holiday this actual element of its habit. It feels like there’s a buy-one-get-one-free provide on shampoo, yet we can’t be certain from this unmarried instance. Following the recipe, we now have to repeat steps 1 to four and upload a few extra situations to provide us a few extra clues as to what the process is doing. we will refactor the situation right into a state of affairs define (see bankruptcy five, Expressive Scenarios) to permit us to attempt diversified quantities and costs: Feature: detailed bargains situation define: Shampoo Given the cost of a bottle of shampoo is $1. ninety nine while I experiment