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Getting started with REST API testing with Serenity and Cucumber 4

This tutorial show you how to get started with REST-API testing using Serenity and Cucumber 4.

Get the code

Git:

git clone https://calcantarav@bitbucket.org/ibkteam/api-test-auto.git
cd api-test-auto

The starter project

The best place to start with Serenity and Cucumber is to clone or download the starter project on Github (https://github.com/serenity-bdd/serenity-rest-starter). This project gives you a basic project setup, along with some sample tests and supporting classes. The starter project comes bundled with a sample SpringBoot web service, and some RestAssured-based tests. The project also illustrates how you might use Freemarker to prepare test data for your scenarios.

The project directory structure

The project has build scripts for both Maven and Gradle, and follows the standard directory structure used in most Serenity projects:

src
  + main
  + test
    + java                                Test runners and supporting code
    + resources
      + features                          Feature files


Adding the Cucumber 4 dependency

Serenity seamlessly supports both Cucumber 2.x and Cucumber 4. However, this flexibility requires a little tweaking in the build dependencies.

If you are using Maven, you need to do the following:

  • exclude the default cucumber-core dependency from your serenity-core dependency
  • Replace your serenity-cucumber dependency with the serenity-cucumber4 dependency
  • Add dependencies on the Cucumber 4.x version of cucumber-java and cucumber-junit into your project

An example of the correctly configured dependencies is shown below:

<dependency>
    <groupId>net.serenity-bdd</groupId>
    <artifactId>serenity-core</artifactId>
    <version>2.0.38</version>
    <scope>test</scope>
    <exclusions>
        <exclusion>
            <groupId>io.cucumber</groupId>
            <artifactId>cucumber-core</artifactId>
        </exclusion>
    </exclusions>
</dependency>
<dependency>
    <groupId>net.serenity-bdd</groupId>
    <artifactId>serenity-cucumber4</artifactId>
    <version>1.0.4</version>
    <scope>test</scope>
</dependency>
<dependency>
    <groupId>io.cucumber</groupId>
    <artifactId>cucumber-java</artifactId>
    <version>4.2.0</version>
</dependency>
<dependency>
    <groupId>io.cucumber</groupId>
    <artifactId>cucumber-junit</artifactId>
    <version>4.2.0</version>
</dependency>

If you are using Gradle, you need to ensure that the 4.x version of cucumber-core is used using the resolutionStrategy element, and also add the Cucumber 4.x version of cucumber-java and cucumber-junit dependencies as mentioned above:

configurations.all {
    resolutionStrategy {
        force "io.cucumber:cucumber-core:4.2.0"
    }
}

dependencies {
    testCompile "net.serenity-bdd:serenity-core:2.0.38",
                "net.serenity-bdd:serenity-cucumber4:1.0.4",
                "io.cucumber:cucumber-core:4.2.0",
                "io.cucumber:cucumber-junit:4.2.0"
}

In the rest of this article, we will walk through some of the highlights of both versions. Let’s start off with the version on the master branch, which uses lightweight page objects and actions.

Run project

Execute mvn clean install mvn clean verify