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Use a Maven Java project in Eclipse, add TestNG and Selenium as dependencies, then run a TestNG-annotated test from Eclipse or Maven. For modern Selenium releases, you can usually start without downloading a browser driver manually: Selenium Manager can discover and obtain a suitable driver when one is not supplied.
What you need, and what each part does
- Java: the runtime and development kit for your project. Use a version supported by the Selenium and TestNG releases you select.
- Eclipse: the IDE in which you will create and launch the project.
- Maven: dependency management, so library versions and test scope are declared in the project rather than assembled manually. See TestNG’s Maven guidance and Selenium’s Java library installation guide.
- TestNG: the test framework, providing annotations, test execution, and results.
- Selenium WebDriver: the browser automation library that opens and controls a browser.
- A browser: for the example below, Google Chrome. Install it before running the test.
The TestNG Eclipse plugin is separate from the TestNG project dependency: the plugin adds IDE features, while the dependency makes TestNG available to your test code.
Install the TestNG plugin in Eclipse
- In Eclipse, open Help → Eclipse Marketplace…, search for TestNG, and install the TestNG for Eclipse plugin; or use Help → Install New Software… with the official update site https://testng.org/testng-eclipse-update-site.
- Complete the installation and restart Eclipse when prompted.
TestNG’s installation guidance lists Eclipse 4.2 or newer and, for plugin version 7.8.0 and newer, Java 11 or newer as plugin requirements. Those are plugin-specific minimums, not a compatibility guarantee for every combination of Selenium, TestNG, Java, and browser. Check the requirements for the releases you choose. See TestNG’s Eclipse plugin documentation.
Create a Maven project and add dependencies
- In Eclipse, choose File → New → Maven Project. If the Maven project wizard is not available, install or enable Eclipse’s Maven integration.
- Choose a workspace location and select a suitable archetype, or create a simple project without an archetype. Give the project a group ID and artifact ID.
- Open the project’s
pom.xmland add TestNG with test scope and Selenium’s Java library. The following is a dependency template; replace the version values with releases compatible with your Java runtime and with each other.
<properties>
<maven.compiler.release>17</maven.compiler.release>
<testng.version>REPLACE_WITH_COMPATIBLE_TESTNG_VERSION</testng.version>
<selenium.version>REPLACE_WITH_COMPATIBLE_SELENIUM_VERSION</selenium.version>
</properties>
<dependencies>
<dependency>
<groupId>org.testng</groupId>
<artifactId>testng</artifactId>
<version>${testng.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.seleniumhq.selenium</groupId>
<artifactId>selenium-java</artifactId>
<version>${selenium.version}</version>
</dependency>
</dependencies>The compiler release value must match a JDK installed and configured for the project; it is an example, not a universal minimum. TestNG’s Maven page and Selenium’s installation page show how to declare the respective libraries. Avoid copying version numbers from old tutorials: choose current releases from the projects’ official guidance and verify their Java requirements.
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- Save the POM. In Eclipse, right-click the project and choose Maven → Update Project… if Eclipse has not resolved the dependencies automatically. Wait for Maven to finish downloading libraries.
- Confirm that the project has a test source folder, commonly
src/test/java. In a basic Maven layout, create the package and test class there.
The Eclipse plugin can also create a class from File → New → Other… → TestNG → TestNG Class (the exact wizard listing can vary by Eclipse installation). It can optionally create a testng.xml suite file.
Write a runnable Selenium TestNG test
Create src/test/java/example/GoogleTitleTest.java, adjusting the package declaration to match your project. This test starts Chrome, opens a page, checks its title, and closes the WebDriver session even if the assertion fails.
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package example;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;
import org.testng.Assert;
import org.testng.annotations.AfterMethod;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.Test;
public class GoogleTitleTest {
private WebDriver driver;
@BeforeMethod
public void startBrowser() {
driver = new ChromeDriver();
}
@Test
public void pageHasExpectedTitle() {
driver.get("https://www.google.com/");
Assert.assertTrue(
driver.getTitle().toLowerCase().contains("google"),
"The page title should contain Google"
);
}
@AfterMethod(alwaysRun = true)
public void closeBrowser() {
if (driver != null) {
driver.quit();
}
}
}@Test marks the test method; the setup and cleanup annotations run around it. driver.get navigates to the URL, and the TestNG assertion reports a failure if the expected condition is not met. Replace the example URL and assertion with the behavior your application needs to verify. Always call quit() after a test session so browser and driver processes are not left running.
Run the test in Eclipse
Launch one test class
- In Package Explorer, right-click
GoogleTitleTest.java. - Choose Run As → TestNG Test.
- Watch the TestNG results view and Console for the result, assertion details, or startup errors.
Launch a method, group, or suite
The TestNG plugin supports launching an individual method, a class, groups, or a testng.xml suite. Right-click the relevant target and use the available TestNG run command. For repeatable settings, open Run → Run Configurations…, select a TestNG configuration, and set its target and any required options. The plugin’s wizard, launch configurations, and results view are described in the official Eclipse plugin documentation.
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Run the same project through Maven
From a terminal in the directory containing pom.xml, run:
mvn testTestNG recommends integrating Maven execution with Surefire; see its Maven instructions for configuration details. A plain mvn test works when the project and test execution configuration are set up for discovery. If the test runs in Eclipse but not Maven, or vice versa, check the Surefire configuration, suite XML, selected JDK, system properties, and environment variables. IDE launch settings do not automatically mean Maven uses identical settings.
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| Run method | Useful when | What to verify |
|---|---|---|
| Eclipse TestNG launch | You are iterating on one class, method, group, or suite and want IDE results. | Confirm the chosen TestNG launch target and any IDE-specific JVM or environment settings. |
| Maven/Surefire | You want execution driven by the project build configuration, such as a local build or automated build. | Confirm Surefire and TestNG suite configuration, Maven’s selected JDK, and passed properties or environment. |
Do you need to download ChromeDriver yourself?
Usually not when using a modern Selenium release. Selenium Manager is included with Selenium and is invoked by the bindings as a fallback when no driver has been supplied. It can discover, download, and cache a suitable driver. You still need the browser installed, and Selenium Manager must be able to reach the metadata and download endpoints it needs. Network restrictions or a controlled environment that pins browser and driver versions may require explicit driver configuration. See Selenium Manager documentation.
If your environment requires a manually managed driver, place the correct executable on the system PATH or configure the appropriate Selenium Service with its executable path. Use this as a deliberate environment choice or troubleshooting step, rather than assuming every new project needs a manual driver download.
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Troubleshooting common setup failures
“TestNG” is missing from Run As
- Check that the Eclipse TestNG plugin installed successfully and restart Eclipse.
- Check that the project also declares the TestNG Maven dependency; installing the IDE plugin alone does not add TestNG to the project classpath.
- Run Maven → Update Project… and confirm the class is under the test source tree.
No tests are discovered
- Make sure the method has the TestNG
@Testannotation and uses TestNG imports, not annotations from another test framework. - Ensure the class is in the project’s test source folder, such as
src/test/java. - If running a suite, inspect
testng.xmlfor the correct package, class, method, or group selection.
Maven cannot resolve dependencies
- Check the POM for misspelled group IDs, artifact IDs, or version properties.
- Ensure Maven can access its repositories through your network or proxy, then update the project and retry.
- Confirm that your selected versions support the configured Java release; the plugin’s Java minimum does not establish the runtime requirements of every library version.
Chrome starts incorrectly or Selenium reports a driver error
- Confirm Chrome is installed and can start in the same user environment as Eclipse or Maven.
- Check that your Selenium version includes Selenium Manager behavior and that network policy permits its driver discovery and download.
- In restricted environments, configure a compatible driver explicitly and ensure the executable path and permissions are correct.
The test passes in Eclipse but fails with Maven
- Check the JDK Maven uses with
mvn -version; Eclipse’s project JRE and the terminal’s Java can differ. - Compare the Eclipse launch target with Surefire configuration, including suite XML, groups, system properties, and environment variables.
- Run Maven from the project root and review its test report and Console output for the underlying assertion or setup error.
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Frequently Asked Questions
Can I use TestNG without the Eclipse plugin?
Yes. The plugin provides Eclipse authoring and launch features; Maven can run TestNG tests independently when the project dependencies and test-runner configuration are set up.
Does this test require a live Google account?
No account is used by the example, but the browser must be able to reach the public page. For stable automated tests, prefer a page and assertion under your control.
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