1) Use appropriate Android gradle plugin version , gradle version.
If our project is a new project then we can use the latest Android gradle plugin , latest gradle version. The Android gradle plugin is specified in the project's build.gradle file. The gradle version is specified in the <a href="http://gradle-wrapper.properties" class="autolinkedURL autolinkedURL-url" target="_blank">gradle-wrapper.properties</a> file 
However if we are on an existing project, then we do not need to change the Android gradle plugin version, gradle version.
2) Add Junit as a dependency in app build.gradle file
<pre><code class="lang-plaintext">dependencies{
testImplementation 'junit:junit:4.13.2'
}
</code></pre>
3) Add a test class in src/test/java in your project as below
<pre><code class="lang-java">public class TrialTest{
 @Test
 public void testHomeActivityStaticVariables() {
 assertEquals(HomeActivity.AppVersion, "1.47");
 }
}
</code></pre>
4) Now right click on src/test/java and click on Run Tests

**1) Use appropriate Android gradle plugin version , gradle version.**

  
If our project is a new project then we can use the latest Android gradle plugin , latest gradle version.  
The Android gradle plugin is specified in the project's build.gradle file.  
The gradle version is specified in the gradle-wrapper.properties file  
  
However if we are on an existing project, then we do not need to change the Android gradle plugin version, gradle version.

**2) Add Junit as a dependency in app build.gradle file**

```plaintext
dependencies{
testImplementation 'junit:junit:4.13.2'
}
```

**3) Add a test class in src/test/java in your project as below**

```java
public class TrialTest{
    @Test
    public void testHomeActivityStaticVariables() {
        assertEquals(HomeActivity.AppVersion, "1.47");
    }
}
```

**4) Now right click on src/test/java and click on**  
Run Tests

How to setup JUnit in android java project.