While writing a simple test which uses launchFragmentInContainer
, I get the following error message:
java.lang.RuntimeException: Unable to resolve activity for: Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] cmp=com.myapp.appname.debug/androidx.fragment.app.testing.FragmentScenario$EmptyFragmentActivity (has extras) }
The basic test class is:
class OneFragmentTest {
@Test
fun testOneFragmentState_checkTitleText() {
val args = Bundle().apply {
putString("dummyKey", "dummyValue")
}
launchFragmentInContainer<OneFragment>(args)
onView(withId(R.id.tv_title)).check(matches(withText("title here")))
}
}
I have tried to update AndroidManifest.xml
with the following:
<instrumentation
android:name="android.test.InstrumentationTestRunner"
android:targetPackage="com.myapp.appname" />
but it seems that the tag instrumentation
is valid but the values are written in red, so I assume something is wrong with the targetPackage
and name
.
How can I get rid of this error and run a simple test on OneFragment using launchFragmentInContainer
?
Try to configure this way
debugImplementation('androidx.fragment:fragment-testing:1.1.0') {
// exclude androidx.test:core while fragment_testing depends on 1.1.0
exclude group: 'androidx.test', module: 'core'
}
The error was related to the way I did import the dependencies on Gradle.
Before:
androidTestImplementation("androidx.fragment:fragment-testing:1.1.0-beta01")
implementation("androidx.fragment:fragment-ktx:1.1.0-beta01")
androidTestImplementation("androidx.test:core:1.2.0")
androidTestImplementation("androidx.test:rules:1.2.0")
androidTestImplementation("androidx.test:runner:1.2.0")
After:
debugImplementation("androidx.fragment:fragment-testing:1.1.0-beta01")
debugImplementation("androidx.fragment:fragment-ktx:1.1.0-beta01")
debugImplementation("androidx.test:core:1.2.0")
debugImplementation("androidx.test:rules:1.2.0")
debugImplementation("androidx.test:runner:1.2.0")
Changed from androidTestImplementation
to debugImplementation
and it solved the issue. Compiling and running, and green test as result.
it works for me
def fragmentx_version = "1.1.0"
implementation "androidx.fragment:fragment:$fragmentx_version"
debugImplementation ("androidx.fragment:fragment-testing:$fragmentx_version"){
exclude group: 'androidx.test', module: 'core'
}
debugImplementation 'androidx.test:core-ktx:1.2.0'
@Test
fun verifyMap() {
FragmentScenario.launchInContainer(HomeFragment::class.java)
onView(withId(R.id.map)).check(matches(isDisplayed()))
}
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