Add test for VectorUncaughtExceptionHandler

features/rageshake/impl/build.gradle.kts

@@ -50,6 +50,7 @@ dependencies {
     ksp(libs.showkase.processor)
 
     testImplementation(libs.test.junit)
+    testImplementation(libs.test.robolectric)
     testImplementation(libs.coroutines.test)
     testImplementation(libs.molecule.runtime)
     testImplementation(libs.test.truth)

features/rageshake/impl/src/test/kotlin/io/element/android/features/rageshake/impl/crash/VectorUncaughtExceptionHandlerTest.kt

@@ -0,0 +1,51 @@
+/*
+ * Copyright (c) 2023 New Vector Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package io.element.android.features.rageshake.impl.crash
+
+import com.google.common.truth.Truth.assertThat
+import io.element.android.libraries.matrix.test.AN_EXCEPTION
+import kotlinx.coroutines.flow.first
+import kotlinx.coroutines.test.runTest
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.robolectric.RobolectricTestRunner
+import org.robolectric.RuntimeEnvironment
+
+@RunWith(RobolectricTestRunner::class)
+class VectorUncaughtExceptionHandlerTest {
+    @Test
+    fun `activate should change the default handler`() {
+        val sut = VectorUncaughtExceptionHandler(RuntimeEnvironment.getApplication())
+        sut.activate()
+        assertThat(Thread.getDefaultUncaughtExceptionHandler()).isInstanceOf(VectorUncaughtExceptionHandler::class.java)
+    }
+
+    @Test
+    fun `uncaught exception`() = runTest {
+        val crashDataStore = PreferencesCrashDataStore(RuntimeEnvironment.getApplication())
+        assertThat(crashDataStore.appHasCrashed().first()).isFalse()
+        assertThat(crashDataStore.crashInfo().first()).isEmpty()
+        val sut = VectorUncaughtExceptionHandler(RuntimeEnvironment.getApplication())
+        sut.uncaughtException(Thread(), AN_EXCEPTION)
+        assertThat(crashDataStore.appHasCrashed().first()).isTrue()
+        val crashInfo = crashDataStore.crashInfo().first()
+        assertThat(crashInfo).isNotEmpty()
+        assertThat(crashInfo).contains("Memory statuses")
+        crashDataStore.resetAppHasCrashed()
+        assertThat(crashDataStore.appHasCrashed().first()).isFalse()
+    }
+}