Mock doAsync() method

Signed-off-by: Stefan Niedermann <info@niedermann.it>

3 files changed, 21 insertions, 4 deletions

diff --git a/README.md b/README.md
index c1a58602c..027ba11d9 100644
--- a/README.md
+++ b/README.md
@@ -41,7 +41,7 @@ An Android client for [Nextcloud Deck App](https://github.com/nextcloud/deck/).
 * Dark mode 🌙
 * Translated in many languages 🌎
 
-## 🏁 Planned features
+## 🏁 Planned feates
 * [Upcoming cards widget](https://github.com/stefan-niedermann/nextcloud-deck/issues/597)
 * Enhanced support for projects
 * Further stabilization of the UI and bugfixes
diff --git a/app/build.gradle b/app/build.gradle
index bdee1c0ef..54a3a1b61 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -128,7 +128,10 @@ dependencies {
 
     // Tests
     testImplementation 'junit:junit:4.13.1'
-    testImplementation 'org.mockito:mockito-core:2.19.0'
+    testImplementation 'org.mockito:mockito-core:3.3.3'
+    testImplementation "org.powermock:powermock-core:2.0.0"
+    testImplementation "org.powermock:powermock-module-junit4:2.0.0"
+    testImplementation "org.powermock:powermock-api-mockito2:2.0.0"
     testImplementation "androidx.arch.core:core-testing:2.1.0"
     androidTestImplementation 'androidx.test:runner:1.3.0'
     androidTestImplementation 'androidx.test.ext:junit:1.1.2'
diff --git a/app/src/test/java/it/niedermann/nextcloud/deck/SyncManagerTest.java b/app/src/test/java/it/niedermann/nextcloud/deck/SyncManagerTest.java
index c0ac2a96b..975053989 100644
--- a/app/src/test/java/it/niedermann/nextcloud/deck/SyncManagerTest.java
+++ b/app/src/test/java/it/niedermann/nextcloud/deck/SyncManagerTest.java
@@ -6,12 +6,15 @@ import androidx.arch.core.executor.testing.InstantTaskExecutorRule;
 import androidx.lifecycle.LiveData;
 import androidx.lifecycle.MutableLiveData;
 
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.mockito.InjectMocks;
 import org.mockito.Mock;
-import org.mockito.junit.MockitoJUnitRunner;
+import org.powermock.api.mockito.PowerMockito;
+import org.powermock.core.classloader.annotations.PrepareForTest;
+import org.powermock.modules.junit4.PowerMockRunner;
 
 import it.niedermann.nextcloud.deck.model.Account;
 import it.niedermann.nextcloud.deck.persistence.sync.SyncManager;
@@ -25,7 +28,8 @@ import static org.mockito.Mockito.times;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
 
-@RunWith(MockitoJUnitRunner.class)
+@RunWith(PowerMockRunner.class)
+@PrepareForTest({SyncManager.class})
 public class SyncManagerTest {
 
     @Rule
@@ -41,6 +45,16 @@ public class SyncManagerTest {
     @InjectMocks
     private SyncManager syncManager;
 
+    @Before
+    public void prepareDoAsync() {
+        PowerMockito
+                .replace(PowerMockito.method(SyncManager.class, "doAsync", Runnable.class))
+                .with((obj, method, arguments) -> {
+                    ((Runnable) arguments[0]).run();
+                    return null;
+                });
+    }
+
     @Test
     public void testHasAccounts() throws InterruptedException {
         when(dataBaseAdapter.hasAccounts()).thenReturn(new MutableLiveData<>(true));