diff --git a/dachlatten-google/build.gradle.kts b/dachlatten-google/build.gradle.kts
index 40dac43..69a60d6 100644
--- a/dachlatten-google/build.gradle.kts
+++ b/dachlatten-google/build.gradle.kts
@@ -8,5 +8,4 @@ dependencies {
     compileOnly(libs.coroutines.playServices)
 
     testImplementation(libs.coroutines.playServices)
-    testImplementation(libs.bundles.mockk)
 }
diff --git a/dachlatten-google/src/test/kotlin/de/sipgate/dachlatten/google/TaskAwaitResultTest.kt b/dachlatten-google/src/test/kotlin/de/sipgate/dachlatten/google/TaskAwaitResultTest.kt
index b3167e1..89d6b66 100644
--- a/dachlatten-google/src/test/kotlin/de/sipgate/dachlatten/google/TaskAwaitResultTest.kt
+++ b/dachlatten-google/src/test/kotlin/de/sipgate/dachlatten/google/TaskAwaitResultTest.kt
@@ -1,25 +1,22 @@
 package de.sipgate.dachlatten.google
 
+import android.app.Activity
+import com.google.android.gms.tasks.OnFailureListener
+import com.google.android.gms.tasks.OnSuccessListener
 import com.google.android.gms.tasks.Task
-import io.mockk.coEvery
-import io.mockk.mockk
-import kotlinx.coroutines.tasks.await
 import kotlinx.coroutines.test.runTest
 import org.junit.jupiter.api.Assertions.assertEquals
 import org.junit.jupiter.api.Assertions.assertFalse
 import org.junit.jupiter.api.Assertions.assertInstanceOf
 import org.junit.jupiter.api.Assertions.assertNull
 import org.junit.jupiter.api.Assertions.assertTrue
-import org.junit.jupiter.api.Disabled
 import org.junit.jupiter.api.Test
+import java.util.concurrent.Executor
 
 class TaskAwaitResultTest {
     @Test
-    @Disabled
     fun resultHandlesSuccessCorrectly() = runTest {
-        val successfulTask = mockk<Task<String>> {
-            coEvery { await() } returns "success"
-        }
+        val successfulTask = DummyResult(success = "success")
 
         val result = successfulTask.awaitResult()
         assertTrue(result.isSuccess)
@@ -29,11 +26,8 @@ class TaskAwaitResultTest {
     }
 
     @Test
-    @Disabled
     fun resultHandlesErrorCorrectly() = runTest {
-        val failingTask = mockk<Task<String>> {
-            coEvery { await() } throws Exception("you shall not pass!")
-        }
+        val failingTask = DummyResult<String>(error = Exception("you shall not pass!"))
 
         val result = failingTask.awaitResult()
         assertFalse(result.isSuccess)
@@ -41,4 +35,46 @@ class TaskAwaitResultTest {
         assertTrue(result.isFailure)
         assertInstanceOf(Exception::class.java, result.exceptionOrNull())
     }
+
+    private class DummyResult<T>(
+        private val success: T? = null,
+        private val error: Throwable? = null
+    ) : Task<T>() {
+        override fun isComplete(): Boolean = true
+
+        override fun isSuccessful(): Boolean = success != null
+
+        override fun isCanceled(): Boolean = false
+
+        override fun getResult(): T? = success
+
+        override fun getException(): java.lang.Exception? = error as? java.lang.Exception
+        override fun addOnSuccessListener(p0: Activity, p1: OnSuccessListener<in T>): Task<T> {
+            TODO("Not yet implemented")
+        }
+
+        override fun addOnSuccessListener(p0: Executor, p1: OnSuccessListener<in T>): Task<T> {
+            TODO("Not yet implemented")
+        }
+
+        override fun addOnSuccessListener(p0: OnSuccessListener<in T>): Task<T> {
+            TODO("Not yet implemented")
+        }
+
+        override fun <X : Throwable?> getResult(p0: Class<X>): T? {
+            TODO("Not yet implemented")
+        }
+
+        override fun addOnFailureListener(p0: OnFailureListener): Task<T> {
+            TODO("Not yet implemented")
+        }
+
+        override fun addOnFailureListener(p0: Executor, p1: OnFailureListener): Task<T> {
+            TODO("Not yet implemented")
+        }
+
+        override fun addOnFailureListener(p0: Activity, p1: OnFailureListener): Task<T> {
+            TODO("Not yet implemented")
+        }
+    }
 }