Add test for CrashDetectionPresenter

features/rageshake/src/test/kotlin/io/element/android/features/rageshake/crash/ui/CrashDetectionPresenterTest.kt

@@ -0,0 +1,89 @@
+/*
+ * 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.
+ */
+
+@file:OptIn(ExperimentalCoroutinesApi::class)
+
+package io.element.android.features.rageshake.crash.ui
+
+import app.cash.molecule.RecompositionClock
+import app.cash.molecule.moleculeFlow
+import app.cash.turbine.test
+import com.google.common.truth.Truth.assertThat
+import kotlinx.coroutines.ExperimentalCoroutinesApi
+import kotlinx.coroutines.test.runTest
+import org.junit.Test
+
+class CrashDetectionPresenterTest {
+    @Test
+    fun `present - initial state no crash`() = runTest {
+        val presenter = CrashDetectionPresenter(
+            FakeCrashDataStore()
+        )
+        moleculeFlow(RecompositionClock.Immediate) {
+            presenter.present()
+        }.test {
+            val initialState = awaitItem()
+            assertThat(initialState.crashDetected).isFalse()
+        }
+    }
+
+    @Test
+    fun `present - initial state crash`() = runTest {
+        val presenter = CrashDetectionPresenter(
+            FakeCrashDataStore(appHasCrashed = true)
+        )
+        moleculeFlow(RecompositionClock.Immediate) {
+            presenter.present()
+        }.test {
+            skipItems(1)
+            val initialState = awaitItem()
+            assertThat(initialState.crashDetected).isTrue()
+
+        }
+    }
+
+    @Test
+    fun `present - reset app has crashed`() = runTest {
+        val presenter = CrashDetectionPresenter(
+            FakeCrashDataStore(appHasCrashed = true)
+        )
+        moleculeFlow(RecompositionClock.Immediate) {
+            presenter.present()
+        }.test {
+            skipItems(1)
+            val initialState = awaitItem()
+            assertThat(initialState.crashDetected).isTrue()
+            initialState.eventSink.invoke(CrashDetectionEvents.ResetAppHasCrashed)
+            assertThat(awaitItem().crashDetected).isFalse()
+        }
+    }
+
+    @Test
+    fun `present - reset all crash data`() = runTest {
+        val presenter = CrashDetectionPresenter(
+            FakeCrashDataStore(appHasCrashed = true, crashData = A_CRASH_DATA)
+        )
+        moleculeFlow(RecompositionClock.Immediate) {
+            presenter.present()
+        }.test {
+            skipItems(1)
+            val initialState = awaitItem()
+            assertThat(initialState.crashDetected).isTrue()
+            initialState.eventSink.invoke(CrashDetectionEvents.ResetAllCrashData)
+            assertThat(awaitItem().crashDetected).isFalse()
+        }
+    }
+}

features/rageshake/src/test/kotlin/io/element/android/features/rageshake/crash/ui/FakeCrashDataStore.kt

@@ -0,0 +1,48 @@
+/*
+ * 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.crash.ui
+
+import io.element.android.features.rageshake.crash.CrashDataStore
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.MutableStateFlow
+
+const val A_CRASH_DATA = "Some crash data"
+
+class FakeCrashDataStore(
+    crashData: String = "",
+    appHasCrashed: Boolean = false,
+) : CrashDataStore {
+    private val appHasCrashedFlow = MutableStateFlow(appHasCrashed)
+    private val crashDataFlow = MutableStateFlow(crashData)
+
+    override fun setCrashData(crashData: String) {
+        crashDataFlow.value = crashData
+    }
+
+    override suspend fun resetAppHasCrashed() {
+        appHasCrashedFlow.value = false
+    }
+
+    override fun appHasCrashed(): Flow<Boolean> = appHasCrashedFlow
+
+    override fun crashInfo(): Flow<String> = crashDataFlow
+
+    override suspend fun reset() {
+        appHasCrashedFlow.value = false
+        crashDataFlow.value = ""
+    }
+}