1. jBehave
A Java library for Behavior Driven Development
By
Ajit Skanda Kumaraswamy
(ajit@backbase.com)
Backbase BV Amsterdam
29th May 2012
Tuesday, May 29, 12
2. In today’s presentation...
n What is Acceptance Testing?
n What is Behavior Driven Development?
n jBehave and its features
n An example jBehave test
n Salient features of jBehave
Tuesday, May 29, 12
3. Acceptance Testing
n What is Acceptance testing?
n Why is it important?
n Who writes Acceptance tests? When?
Tuesday, May 29, 12
4. Behavior Driven Development
n What is BDD?
n How is it different from TDD?
n How do we benefit from it?
n Acceptance testing and BDD
n BDD using jBehave
Tuesday, May 29, 12
5. Introduction to jBehave
n Basic Concepts
n Story
n Steps Class
n Configuration
n Advanced topics
n jBehave with Spring and Maven
n Example in jBehave
Tuesday, May 29, 12
6. jBehave basics 1 - story
n A textual representation of the Example Story
business feature to be
developed Scenario: trader is not alerted below
threshold
n A collection of scenarios for the Given a stock of symbol STK1 and a
given feature threshold of 10.0
When the stock is traded at 5.0
Then the alert status should be OFF
n Can be located on the classpath
or on a url Scenario: trader is alerted above
threshold
n Can be written in plain-text, Given a stock of symbol STK1 and a
threshold of 10.0
ODT format and other formats When the stock is traded at 11.0
like html Then the alert status should be ON
Tuesday, May 29, 12
7. jBehave basics 2 - Steps Class
n Mapping textual scenario steps Example Steps POJO class
to Java methods
public class TraderSteps {
private Stock stock;
n Each annotation corresponds to
@Given("a stock of symbol $symbol and a threshold of
one step of a given scenario $threshold")
public void aStock(String symbol, double threshold) {
stock = new Stock(symbol, threshold);
}
n A simple regex pattern holds @When("the stock is traded at $price")
@Alias("the stock is sold at $price")
the value public void theStockIsTradedAt(double price) {
stock.tradeAt(price);
}
n After/Before - Scenario, Story @Then("the alert status should be $status")
public void theAlertStatusShouldBe(String status) {
and Stories ensureThat(stock.getStatus().name(), equalTo(status));
}
}
n Spring, Configuration based
Tuesday, May 29, 12
8. jBehave basics 3 - Configuration
n Different ways of running:
n Embedded vs storyPaths
n Local vs Remote
n Embeddable - Combining Configuration and CandidateSteps
n Configuration:
n Story parsing and loading
n StoryReporterBuilder and ViewGenerator
n Multiple stories using JUnitStories
n WebRunner Configuration (Ex. Selenium)
Tuesday, May 29, 12
9. jBehave advanced - Spring and Maven
n Excellent support for Spring framework
n SpringAnnotatedEmbedderRunner
n @UsingSpring
n InjectableStepsFactory for Steps beans
n jBehave Maven plugin and its configuration
n unpack, mapping, running, reporting
n A concurrent Jenkins plugin
Tuesday, May 29, 12
10. jBehave - Example
n An example from jBehave tutorials - Selenium
tests to run stories on etsy.com
Tuesday, May 29, 12
11. Salient Features of jBehave
n Very powerful and flexible
n Separation of text stories from code and config
n Extensive support for different frameworks and
environments
n Good documentation/example and online forums
n Comprehensive reporting options
n Steep learning curve!
Tuesday, May 29, 12
