Testing

app/src/
├── test/                              # Unit tests (JVM)
│   └── java/com/teamtech/techsales/
│       └── ExampleUnitTest.java
└── androidTest/                        # Instrumented tests (Android)
    └── java/com/teamtech/techsales/
        └── ExampleInstrumentedTest.java

./gradlew test

./gradlew testDebug

./gradlew testRelease

# Run all instrumented tests
./gradlew connectedAndroidTest

# Run debug variant instrumented tests
./gradlew connectedDebugAndroidTest

./gradlew test connectedAndroidTest

package com.teamtech.techsales;

import org.junit.Test;

import static org.junit.Assert.*;

/**
 * Example local unit test, which will execute on the development machine (host).
 *
 * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
 */
public class ExampleUnitTest {
    @Test
    public void addition_isCorrect() {
        assertEquals(4, 2 + 2);
    }
}

./gradlew test

package com.teamtech.techsales;

import android.content.Context;

import androidx.test.platform.app.InstrumentationRegistry;
import androidx.test.ext.junit.runners.AndroidJUnit4;

import org.junit.Test;
import org.junit.runner.RunWith;

import static org.junit.Assert.*;

/**
 * Instrumented test, which will execute on an Android device.
 *
 * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
 */
@RunWith(AndroidJUnit4.class)
public class ExampleInstrumentedTest {
    @Test
    public void useAppContext() {
        // Context of the app under test.
        Context appContext = InstrumentationRegistry.getInstrumentation().getTargetContext();
        assertEquals("com.teamtech.techsales", appContext.getPackageName());
    }
}

# Ensure device/emulator is connected
adb devices

# Run instrumented tests
./gradlew connectedAndroidTest

dependencies {
    // App dependencies
    implementation(libs.appcompat)
    implementation(libs.material)
    implementation(libs.activity)
    implementation(libs.constraintlayout)
    
    // Unit testing dependencies
    testImplementation(libs.junit)
    
    // Instrumented testing dependencies
    androidTestImplementation(libs.ext.junit)
    androidTestImplementation(libs.espresso.core)
}

defaultConfig {
    applicationId = "com.teamtech.techsales"
    minSdk = 29
    targetSdk = 36
    versionCode = 1
    versionName = "1.0"

    testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
}

app/build/reports/tests/testDebugUnitTest/index.html

app/build/reports/androidTests/connected/index.html

# Run tests and open report
./gradlew test
open app/build/reports/tests/testDebugUnitTest/index.html

# Unit test
./gradlew test --tests ExampleUnitTest

# Instrumented test
./gradlew connectedAndroidTest --tests ExampleInstrumentedTest

./gradlew test --tests ExampleUnitTest.addition_isCorrect

./gradlew test --tests '*Unit*'

# Run tests whenever files change
./gradlew test --continuous

# Run tests with coverage
./gradlew testDebugUnitTest jacocoTestReport

app/build/reports/jacoco/jacocoTestReport/html/index.html

# Clean and rebuild
./gradlew clean test

# Verify device is connected
adb devices

# Restart ADB if needed
adb kill-server
adb start-server

# Refresh dependencies
./gradlew build --refresh-dependencies