Unit tests for navigator

vector/src/main/java/im/vector/app/features/settings/devices/v2/VectorSettingsDevicesViewNavigator.kt

@@ -20,7 +20,6 @@ import android.content.Context
 import im.vector.app.features.settings.devices.v2.overview.SessionOverviewActivity
 import javax.inject.Inject
 
-// TODO add unit tests
 class VectorSettingsDevicesViewNavigator @Inject constructor() {
 
     fun navigateToSessionOverview(context: Context, sessionId: String) {

vector/src/test/java/im/vector/app/features/settings/devices/v2/VectorSettingsDevicesViewNavigatorTest.kt

@@ -0,0 +1,65 @@
+/*
+ * Copyright (c) 2022 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 im.vector.app.features.settings.devices.v2
+
+import android.content.Intent
+import im.vector.app.features.settings.devices.v2.overview.SessionOverviewActivity
+import im.vector.app.test.fakes.FakeContext
+import io.mockk.every
+import io.mockk.mockk
+import io.mockk.mockkObject
+import io.mockk.unmockkAll
+import io.mockk.verify
+import org.junit.After
+import org.junit.Before
+import org.junit.Test
+
+private const val A_SESSION_ID = "session_id"
+
+class VectorSettingsDevicesViewNavigatorTest {
+
+    private val context = FakeContext()
+    private val vectorSettingsDevicesViewNavigator = VectorSettingsDevicesViewNavigator()
+
+    @Before
+    fun setUp() {
+        mockkObject(SessionOverviewActivity.Companion)
+    }
+
+    @After
+    fun tearDown() {
+        unmockkAll()
+    }
+
+    @Test
+    fun `given a session id when navigating to overview then it starts the correct activity`() {
+        val intent = givenIntentForSessionOverview(A_SESSION_ID)
+        context.givenStartActivity(intent)
+
+        vectorSettingsDevicesViewNavigator.navigateToSessionOverview(context.instance, A_SESSION_ID)
+
+        verify {
+            context.instance.startActivity(intent)
+        }
+    }
+
+    private fun givenIntentForSessionOverview(sessionId: String): Intent {
+        val intent = mockk<Intent>()
+        every { SessionOverviewActivity.newIntent(context.instance, sessionId) } returns intent
+        return intent
+    }
+}

vector/src/test/java/im/vector/app/test/fakes/FakeContext.kt

@@ -18,11 +18,14 @@ package im.vector.app.test.fakes
 
 import android.content.ContentResolver
 import android.content.Context
+import android.content.Intent
 import android.net.ConnectivityManager
 import android.net.Uri
 import android.os.ParcelFileDescriptor
 import io.mockk.every
+import io.mockk.just
 import io.mockk.mockk
+import io.mockk.runs
 import java.io.OutputStream
 
 class FakeContext(
@@ -67,4 +70,8 @@ class FakeContext(
         connectivityManager.givenHasActiveConnection()
         givenService(Context.CONNECTIVITY_SERVICE, ConnectivityManager::class.java, connectivityManager.instance)
     }
+
+    fun givenStartActivity(intent: Intent) {
+        every { instance.startActivity(intent) } just runs
+    }
 }