Fix roboelectric unit tests

app/build.gradle

@@ -9,7 +9,7 @@ android {
     buildToolsVersion '30.0.2'  // adapt in .travis.yaml if changed here
 
     defaultConfig {
-        minSdkVersion 30
+        minSdkVersion 29 // leave at 29 for robolectric tests
         targetSdkVersion 30
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
         testInstrumentationRunnerArguments disableAnalytics: 'true'
@@ -138,8 +138,8 @@ dependencies {
     def junit_version = "5.5.2"  // careful, upgrading this can change a Cipher's IV size in tests!?
     def mockk_version = "1.10.0"
     testImplementation aospDeps  // anything less fails tests run with gradlew
-    testImplementation 'androidx.test.ext:junit:1.1.1'
-    testImplementation('org.robolectric:robolectric:4.3.1') {
+    testImplementation 'androidx.test.ext:junit:1.1.2'
+    testImplementation('org.robolectric:robolectric:4.3.1') { // 4.4 has issue with non-idle Looper
         // https://github.com/robolectric/robolectric/issues/5245
         exclude group: "com.google.auto.service", module: "auto-service"
     }
@@ -148,8 +148,8 @@ dependencies {
     testRuntimeOnly "org.junit.jupiter:junit-jupiter-engine:$junit_version"
     testRuntimeOnly "org.junit.vintage:junit-vintage-engine:$junit_version"
 
-    androidTestImplementation 'androidx.test:runner:1.2.0'
-    androidTestImplementation 'androidx.test:rules:1.2.0'
-    androidTestImplementation 'androidx.test.ext:junit:1.1.1'
+    androidTestImplementation 'androidx.test:runner:1.3.0'
+    androidTestImplementation 'androidx.test:rules:1.3.0'
+    androidTestImplementation 'androidx.test.ext:junit:1.1.2'
     androidTestImplementation "io.mockk:mockk-android:$mockk_version"
 }

app/src/test/java/com/stevesoltys/seedvault/metadata/MetadataManagerTest.kt

@@ -26,6 +26,7 @@ import org.junit.Assert.fail
 import org.junit.Test
 import org.junit.runner.RunWith
 import org.koin.core.context.stopKoin
+import org.robolectric.annotation.Config
 import java.io.ByteArrayOutputStream
 import java.io.FileInputStream
 import java.io.FileNotFoundException
@@ -34,6 +35,7 @@ import java.io.IOException
 import kotlin.random.Random
 
 @RunWith(AndroidJUnit4::class)
+@Config(sdk = [29]) // robolectric does not support 30, yet
 class MetadataManagerTest {
 
     private val context: Context = mockk()

app/src/test/java/com/stevesoltys/seedvault/plugins/saf/DocumentFileTest.kt

@@ -12,8 +12,10 @@ import org.junit.Assert.assertTrue
 import org.junit.Test
 import org.junit.runner.RunWith
 import org.koin.core.context.stopKoin
+import org.robolectric.annotation.Config
 
 @RunWith(AndroidJUnit4::class)
+@Config(sdk = [29]) // robolectric does not support 30, yet
 internal class DocumentFileTest {
 
     private val context: Context = mockk()