I have an Android application I am building and would like to use the fragment-testing libraries to test some fragments in isolation. However, I am struggling to get the tests to execute:
2019-12-09 13:57:03.255 22352-22352/net.redlightning.solo E/AndroidRuntime: FATAL EXCEPTION: main
Process: net.redlightning.solo, PID: 22352
java.lang.RuntimeException: Unable to instantiate instrumentation ComponentInfo{net.redlightning.solo.test/androidx.test.runner.AndroidJUnitRunner}: java.lang.ClassNotFoundException: Didn't find class "androidx.test.runner.AndroidJUnitRunner" on path: DexPathList[[zip file "/system/framework/android.test.runner.jar", zip file "/system/framework/android.test.mock.jar", zip file "/data/app/net.redlightning.solo.test-IhE3r3tw8UMYiQVbxTUcKw==/base.apk", zip file "/data/app/net.redlightning.solo-OBV060XuIVKmHuPoKbpynw==/base.apk"],nativeLibraryDirectories=[/system/lib64, /system/product/lib64]]
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:6395)
at android.app.ActivityThread.access$1300(ActivityThread.java:219)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1859)
at android.os.Handler.dispatchMessage(Handler.java:107)
at android.os.Looper.loop(Looper.java:214)
at android.app.ActivityThread.main(ActivityThread.java:7356)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:930)
Caused by: java.lang.ClassNotFoundException: Didn't find class "androidx.test.runner.AndroidJUnitRunner" on path: DexPathList[[zip file "/system/framework/android.test.runner.jar", zip file "/system/framework/android.test.mock.jar", zip file "/data/app/net.redlightning.solo.test-IhE3r3tw8UMYiQVbxTUcKw==/base.apk", zip file "/data/app/net.redlightning.solo-OBV060XuIVKmHuPoKbpynw==/base.apk"],nativeLibraryDirectories=[/system/lib64, /system/product/lib64]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:196)
at java.lang.ClassLoader.loadClass(ClassLoader.java:379)
at java.lang.ClassLoader.loadClass(ClassLoader.java:312)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:6391)
at android.app.ActivityThread.access$1300(ActivityThread.java:219)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1859)
at android.os.Handler.dispatchMessage(Handler.java:107)
at android.os.Looper.loop(Looper.java:214)
at android.app.ActivityThread.main(ActivityThread.java:7356)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:930)
Suppressed: java.lang.NoClassDefFoundError: Failed resolution of: Landroidx/test/runner/MonitoringInstrumentation;
at java.lang.VMClassLoader.findLoadedClass(Native Method)
at java.lang.ClassLoader.findLoadedClass(ClassLoader.java:738)
at java.lang.ClassLoader.loadClass(ClassLoader.java:363)
... 10 more
Caused by: java.lang.ClassNotFoundException: Didn't find class "androidx.test.runner.MonitoringInstrumentation" on path: DexPathList[[zip file "/system/framework/android.test.runner.jar", zip file "/system/framework/android.test.mock.jar", zip file "/data/app/net.redlightning.solo.test-IhE3r3tw8UMYiQVbxTUcKw==/base.apk", zip file "/data/app/net.redlightning.solo-OBV060XuIVKmHuPoKbpynw==/base.apk"],nativeLibraryDirectories=[/system/lib64, /system/product/lib64]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:196)
at java.lang.ClassLoader.loadClass(ClassLoader.java:379)
at java.lang.ClassLoader.loadClass(ClassLoader.java:312)
... 13 more
Here is my app's gradle.build file:
apply plugin: 'com.android.application'
apply plugin: 'kotlin-android'
apply plugin: 'kotlin-android-extensions'
apply plugin: 'kotlin-kapt'
apply plugin: 'realm-android'
android {
compileSdkVersion 29
buildToolsVersion "29.0.2"
defaultConfig {
applicationId "net.redlightning.solo"
minSdkVersion 26
targetSdkVersion 29
versionCode 1
versionName "1.0.0"
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
}
compileOptions {
sourceCompatibility = 1.8
targetCompatibility = 1.8
}
kotlinOptions {
jvmTarget = "1.8"
}
buildTypes {
release {
minifyEnabled true
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
}
}
}
kapt {
useBuildCache = false
}
dependencies {
implementation fileTree(dir: 'libs', include: ['*.aar', '*.jar'], exclude: [])
implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
implementation 'androidx.appcompat:appcompat:1.1.0'
implementation 'androidx.core:core:1.1.0'
implementation 'androidx.fragment:fragment:1.2.0-rc03'
implementation 'androidx.localbroadcastmanager:localbroadcastmanager:1.0.0'
implementation 'androidx.multidex:multidex:2.0.1'
implementation 'androidx.preference:preference:1.1.0'
implementation 'com.google.android.material:material:1.0.0'
implementation 'com.google.maps.android:android-maps-utils:0.6.2'
implementation 'com.google.android.gms:play-services-auth:17.0.0'
implementation 'com.google.android.gms:play-services-maps:17.0.0'
implementation 'com.google.android.gms:play-services-location:17.0.0'
implementation 'com.google.android.gms:play-services-places:17.0.0'
implementation 'com.google.android.gms:play-services-plus:17.0.0'
implementation 'com.github.deano2390:MaterialShowcaseView:1.3.4'
implementation 'com.github.zafarkhaja:java-semver:0.9.0'
implementation 'com.jcraft.jsch:com.springsource.com.jcraft.jsch:0.1.41'
implementation 'com.mixpanel.android:mixpanel-android:5.6.6'
implementation 'com.nostra13.universalimageloader:universal-image-loader:1.9.5'
implementation 'com.squareup.okio:okio:2.4.1'
implementation 'com.squareup.okhttp3:okhttp:4.2.2'
implementation 'com.squareup.okhttp3:okhttp-urlconnection:4.2.2'
implementation 'io.dronefleet.mavlink:mavlink:1.1.5'
implementation 'me.grantland:autofittextview:0.2.1'
implementation 'org.mp4parser:isoparser:1.9.41'
implementation 'pl.tajchert:waitingdots:0.2.0'
implementation 'com.jakewharton.timber:timber:4.7.1'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'androidx.test.ext:junit:1.1.1'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
androidTestImplementation 'androidx.test:core:1.2.0'
androidTestImplementation 'androidx.test:runner:1.2.0'
androidTestImplementation 'androidx.test:rules:1.2.0'
debugImplementation 'androidx.fragment:fragment-testing:1.2.0-rc03'
}
apply plugin: 'com.google.gms.google-services'
And here is the test class (simplified), located in androidTest:
package net.redlightning.solo.fragment
import android.content.Context
import android.location.Location
import androidx.fragment.app.testing.launchFragmentInContainer
import androidx.test.ext.junit.runners.AndroidJUnit4
import androidx.test.platform.app.InstrumentationRegistry
import junit.framework.Assert.assertNotNull
import org.junit.Before
import org.junit.Test
import org.junit.runner.RunWith
@RunWith(AndroidJUnit4::class)
class PlanningWidgetFragmentTest {
private var instrumentationContext: Context? = null
@Before
fun setUp() {
instrumentationContext = InstrumentationRegistry.getInstrumentation().targetContext
}
@Test
fun fetchWeatherInformationRequest() {
val location = Location("flp")
location.latitude = 43.073051
location.longitude = -89.401230
location.altitude = 266.0
location.bearing = 0.0f
val scenario = launchFragmentInContainer<PlanningWidgetFragment>()
scenario.onFragment {
val result = it.fetchWeatherInformationRequest(location)
assertNotNull(result)
}
}
I have tried with and without the @RunWith(AndroidJUnit4::class) annotation on the test class, I have tried with 1.2.0-rc03 and 1.1.0 versions of androidx.fragment:fragment-testing (and androidx.fragment:fragment so they match) in gradle, I've tried having the import be in debugImplmentation (as the docs and articles from a year ago describe), implementation, and androidTestImplementation. Nothing seems to work.
It is likely worth noting that if I remove fragment-testing from the project, and comment out the lines using it in the test (so it just builds a location it doesn't use) the test runs to completion just fine.
What is the correct setup to allow me to use androidx.fragment:fragment-testing?
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