How to run dependent API test first in restAssured with TestNg xml file

To run dependent API tests first in RestAssured using a TestNG XML file, you can configure the dependencies between test methods in the XML file. Here's an example of how you can achieve this:

1. Create a TestNG XML File:

Create a TestNG XML file and define the test suite, test classes, and their dependencies. Here's an example:

<!DOCTYPE suite SYSTEM "https://testng.org/testng-1.0.dtd">
<suite name="API Test Suite">
    <test name="API Tests">
        <classes>
            <class name="com.example.RestAssuredTest">
                <methods>
                    <include name="testCreateUser" />
                    <include name="testUpdateUser" dependsOnMethods="testCreateUser" />
                    <include name="testDeleteUser" dependsOnMethods="testUpdateUser" />
                </methods>
            </class>
        </classes>
    </test>
</suite>

In this example, we define a TestNG suite named "API Test Suite" and a test named "API Tests". Inside the test, we include the test class `com.example.RestAssuredTest` and specify the dependencies between the test methods using the `dependsOnMethods` attribute.

2. Run Tests with TestNG XML:

Use TestNG to execute the tests based on the TestNG XML configuration. You can run the tests from the command line using the TestNG executable JAR or by configuring your build tool (e.g., Maven or Gradle) to run the TestNG XML file.

For the command line approach, execute the following command:

java -cp "path/to/testng.jar:path/to/your-tests.jar" org.testng.TestNG path/to/testng.xml

Replace "path/to/testng.jar" with the actual path to the TestNG JAR file, "path/to/your-tests.jar" with the path to your compiled test classes or JAR file, and "path/to/testng.xml" with the path to your TestNG XML file.

If you're using Maven, you can configure the TestNG plugin in your project's `pom.xml` to execute the tests:

<plugins>
    <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-surefire-plugin</artifactId>
        <version>3.0.0-M5</version>
        <configuration>
            <suiteXmlFiles>
                <suiteXmlFile>path/to/testng.xml</suiteXmlFile>
            </suiteXmlFiles>
        </configuration>
    </plugin>
</plugins>

Replace "path/to/testng.xml" with the actual path to your TestNG XML file. Then, execute the following command:

mvn clean test

If you're using Gradle, you can configure the TestNG plugin in your project's `build.gradle` file:

plugins {
    id 'java'
    id 'org.testng.testng'
}

test {
    useTestNG() {
        suites 'path/to/testng.xml'
    }
}

Replace "path/to/testng.xml" with the actual path to your TestNG XML file. Then, execute the following command:

gradle test

TestNG will execute the tests in the specified order based on the dependencies defined in the TestNG XML file.

By configuring the test dependencies in the TestNG XML file, you can control the execution order of your RestAssured API tests and ensure that dependent tests run first.