battle: bdd vs notbdd
TRANSCRIPT
1CONFIDENTIAL
BDD to Do or not to Do
Roman Iovlev Anton Shapin
2CONFIDENTIAL
ROMAN IOVLEV
Chief QA Automation
In Testing more than 12 years
In Testing Automation 10 years
3CONFIDENTIAL
Let’s bdd it
4CONFIDENTIAL
EXPERT
5CONFIDENTIAL
EXPERT
6CONFIDENTIAL
• Layer, Regex steps
• Scripted poor language
• DDT, step to step
• No classes
• Debug
• Navigation…
PAIN
7CONFIDENTIAL
• Time:• BDD layer support
• Workarounds with before and in data flow
• Tests support (debug, navigation…)
• …
• Stability
• Complexity
• …
• No profit (((
LOOSES
8CONFIDENTIAL
WHY?
9CONFIDENTIAL
WHAT IS BDD?
10CONFIDENTIAL
Scenario: Sum two numbers
• Given I Have Calculator
• When I calculate sum of ‘2’ and ‘3’
• Then I get result ‘5’
TESTS IN GHERKIN
11CONFIDENTIAL
public void sumTwoNumbers() {
Calculator calc = new Calculator();
int sum = calc.sum(2,3);
areEquals(sum, 5);
}
TESTS IN GHERKIN
Scenario: Sum two numbers
• Given I Have Calculator
• When I calculate sum of ‘2’ and ‘3’
• Then I get result ‘5’
public void sumTwoNumbers() {
I.HaveCalculator();
I.CalculateSum(2,3);
I.GetResult(5);
}
STEPS
PATTERN
13CONFIDENTIAL
We write 200 tests per year…
We write 300 tests per year!
Really? And what about thousands of tests?
PROFIT?
14CONFIDENTIAL
In 90% or even 95%
cases we don’t need
BDD on projects
NO REASONS TO USE BDD
15CONFIDENTIAL
• homePage.open();
• loginForm.loginAs(admin)
• mainMenu.select(Search);
• products.filterBy(“MacBook”)
• Assert.eachOf(SearchResults)
.contains(“MacBook”);
CODE LIKE BDD
16CONFIDENTIAL
• Write tests faster
• More stable
• More obvious, clear and simple...
WRITE NO BDD
17CONFIDENTIAL
WHEN IT IS GOOD TO USE BDD?
18CONFIDENTIAL
HOW IT IS GOOD TO USE BDD?
