REST API Automation testing. REST Assured java.

• Setting up REST ASSURED environment for automation
• REST Assured methods
• REST Assured validations
• Methods to validate Json and xpath responses
• Optimizing scripts to Framwork standards
• Logging feature to log responses
• Migrating project to TESTNG framework
• Building Maven setup as build management tool
• Creating BAT file to run whole project on single click

What is Rest Assured?

REST Assured is a Java DSL for simplifying testing of REST based services built on top of HTTP Builder. It supports POST, GET, PUT, DELETE, OPTIONS, PATCH and HEAD requests and can be used to validate and verify the response of these requests.

Creating a Project

You will need somewhere for your project to reside, create a directory somewhere and start a shell in that directory.

On your command line, execute the following Maven goal:

mvn archetype:generate \
    -DgroupId=com.mycompany.app \
    -DartifactId=my-app \
    -DarchetypeArtifactId=maven-archetype-quickstart \
    -DarchetypeVersion=1.4 \
    -DinteractiveMode=false

Under this directory you will notice the following standard project structure.

my-app
|-- pom.xml
`-- src
    |-- main
    |   `-- java
    |       `-- com
    |           `-- mycompany
    |               `-- app
    |                   `-- App.java
    `-- test
        `-- java
            `-- com
                `-- mycompany
                    `-- app
                        `-- AppTest.java

The src/main/java directory contains the project source code, the src/test/java directory contains the test source, and the pom.xml file is the project's Project Object Model, or POM.

The POM

The pom.xml file is the core of a project's configuration in Maven. It is a single configuration file that contains the majority of information required to build a project in just the way you want. The POM is huge and can be daunting in its complexity, but it is not necessary to understand all of the intricacies just yet to use it effectively.

This project's POM is:

    <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
      <modelVersion>4.0.0</modelVersion>
      <groupId>com.mycompany.app</groupId>
      <artifactId>my-app</artifactId>
      <version>1.0-SNAPSHOT</version> 
      <properties>
        <maven.compiler.source>1.7</maven.compiler.source>
        <maven.compiler.target>1.7</maven.compiler.target>
      </properties>
      <dependencies>
        <dependency>
          <groupId>junit</groupId>
          <artifactId>junit</artifactId>
          <version>4.12</version>
          <scope>test</scope>
        </dependency>
      </dependencies>
    </project>

Running a Single Test

During development, you may run a single test class repeatedly. To run this through Maven, set the test property to a specific test case.

mvn -Dtest=TestCircle test

Running a Set of Methods in a Single Test Class

Run only a subset of the tests in a test class.

mvn -Dtest=TestCircle#mytest test

You can use patterns too

mvn -Dtest=TestCircle#test* test

Since of Surefire Plugin 2.19 you can select multiple methods (JUnit 4, JUnit 4.7+ and TestNG):

mvn -Dtest=TestCircle#testOne+testTwo test

Run profile mvn test -P<id_rpofile>, example: mvn test -PRegression