IssueTracker

I'm trying to write instrumented tests for a DocumentProvider using ProviderTestRule to replace ProviderTestCase2, but it keeps throwing a SecurityException.

Steps to reproduce:

• Create new app project
• Create a DocumentProvider with the following manifest entry:

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.tnibler.cryptomator_android">

    <application //... //>
        // ... //
        
        <provider
            android:authorities="com.example.example.documents"
            android:name="com.example.example.MyProvider"
            android:exported="true"
            android:enabled="true"
            android:grantUriPermissions="true"
            android:permission="android.permission.MANAGE_DOCUMENTS">
            <intent-filter>
                <action android:name="android.content.action.DOCUMENTS_PROVIDER"/>
            </intent-filter>
        </provider>
    </application>


</manifest>

• Create an Instrumented test using ProviderTestRule:

@RunWith(AndroidJUnit4::class)
class ExampleInstrumentedTest {

    @get:Rule
    public val permission = GrantPermissionRule.grant(Manifest.permission.MANAGE_DOCUMENTS)
    @get:Rule
    public val rule = ProviderTestRule.Builder(MyProvider::class.java, BuildConfig.DOCUMENTS_AUTHORITY).build()

    @Before
    fun setUp() {
    }

    @Test
    fun myTest() {
        Assert.assertEquals(1, 1)
    }
}

Module build.gradle:

android {
    //...//
    defaultConfig {
        //...//        
        minSdkVersion 26
        targetSdkVersion 29
        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
    }
    useLibrary 'android.test.runner'
    useLibrary 'android.test.base'
    useLibrary 'android.test.mock'

}

Expected behavior: the test passes normally.

Actual behavior:

java.lang.SecurityException: Provider must be exported
at android.provider.DocumentsProvider.attachInfo(DocumentsProvider.java:168)
at androidx.test.rule.provider.ProviderTestRule$Builder.createProvider(ProviderTestRule.java:529)
at androidx.test.rule.provider.ProviderTestRule$Builder.build(ProviderTestRule.java:482)
at com.example.example.ExampleInstrumentedTest.<init>(ExampleInstrumentedTest.kt:22)
at java.lang.reflect.Constructor.newInstance0(Native Method)
at java.lang.reflect.Constructor.newInstance(Constructor.java:334)
at org.junit.runners.BlockJUnit4ClassRunner.createTest(BlockJUnit4ClassRunner.java:217)
at org.junit.runners.BlockJUnit4ClassRunner$1.runReflectiveCall(BlockJUnit4ClassRunner.java:266)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.BlockJUnit4ClassRunner.methodBlock(BlockJUnit4ClassRunner.java:263)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at androidx.test.ext.junit.runners.AndroidJUnit4.run(AndroidJUnit4.java:104)
at org.junit.runners.Suite.runChild(Suite.java:128)
at org.junit.runners.Suite.runChild(Suite.java:27)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at org.junit.runner.JUnitCore.run(JUnitCore.java:115)
at androidx.test.internal.runner.TestExecutor.execute(TestExecutor.java:56)
at androidx.test.runner.AndroidJUnitRunner.onStart(AndroidJUnitRunner.java:392)
at android.app.Instrumentation$InstrumentationThread.run(Instrumentation.java:2074)