Add sample unit and connected test for shared items activity

Signed-off-by: Álvaro Brey <alvaro.brey@nextcloud.com>

app/build.gradle

@@ -152,6 +152,7 @@ ext {
     workVersion = "2.7.1"
     markwonVersion = "4.6.2"
     espressoVersion = "3.4.0"
+    mockkVersion = "1.13.2"
 }
 
 def webRtcVersion = "96.4664.0"
@@ -294,8 +295,12 @@ dependencies {
 
     testImplementation 'junit:junit:4.13.2'
     testImplementation 'org.mockito:mockito-core:4.8.1'
+    testImplementation "io.mockk:mockk:$mockkVersion"
+    testImplementation "io.mockk:mockk-android:$mockkVersion"
+
 
     androidTestImplementation "androidx.test:core:1.4.0"
+    androidTestImplementation "androidx.test:core-ktx:1.4.0"
 
     // Espresso core
     androidTestImplementation ("androidx.test.espresso:espresso-core:$espressoVersion", {

app/src/androidTest/java/com/nextcloud/talk/shareditems/activities/SharedItemsActivityTest.kt

@@ -0,0 +1,33 @@
+package com.nextcloud.talk.shareditems.activities
+
+import android.content.Intent
+import androidx.core.os.bundleOf
+import androidx.core.view.isVisible
+import androidx.test.core.app.ApplicationProvider
+import androidx.test.core.app.launchActivity
+import androidx.test.espresso.Espresso
+import androidx.test.espresso.matcher.ViewMatchers.withId
+import com.nextcloud.talk.data.user.model.User
+import com.nextcloud.talk.utils.bundle.BundleKeys
+import org.junit.Test
+
+import com.nextcloud.talk.R
+
+class SharedItemsActivityTest {
+
+    @Test
+    fun launch() {
+        val intent = Intent(ApplicationProvider.getApplicationContext(), SharedItemsActivity::class.java).apply {
+            putExtras(
+                bundleOf(
+                    BundleKeys.KEY_ROOM_TOKEN to "",
+                    BundleKeys.KEY_CONVERSATION_NAME to "",
+                    BundleKeys.KEY_USER_ENTITY to User(1L, ", ", ", ", "", token = "")
+                )
+            )
+        }
+        launchActivity<SharedItemsActivity>(intent).use { scenario ->
+            Espresso.onView(withId(R.id.emptyContainer)).check { view, _ -> view.isVisible }
+        }
+    }
+}

app/src/test/java/com/nextcloud/talk/shareditems/repositories/SharedItemsRepositoryImplTest.kt

@@ -0,0 +1,57 @@
+package com.nextcloud.talk.shareditems.repositories
+
+import android.text.TextUtils
+import com.nextcloud.talk.api.NcApi
+import com.nextcloud.talk.models.json.chat.ChatShareOCS
+import com.nextcloud.talk.models.json.chat.ChatShareOverall
+import com.nextcloud.talk.shareditems.model.SharedItemType
+import com.nextcloud.talk.shareditems.model.SharedItems
+import io.mockk.every
+import io.mockk.mockk
+import io.mockk.mockkStatic
+import io.mockk.unmockkStatic
+import io.reactivex.Observable
+import org.junit.After
+import org.junit.Assert
+import org.junit.Before
+import org.junit.Test
+import retrofit2.Response
+
+class SharedItemsRepositoryImplTest {
+
+    @Before
+    fun setup() {
+        mockkStatic(TextUtils::class)
+        every { TextUtils.isEmpty(any()) } returns false
+    }
+
+    @After
+    fun tearDown() {
+        unmockkStatic(TextUtils::class)
+    }
+
+    @Test
+    fun testMedia_empty() {
+        // arrange
+        val ncApi: NcApi = mockk()
+        val sut: SharedItemsRepository = SharedItemsRepositoryImpl(ncApi)
+
+        val result = ChatShareOverall(ChatShareOCS(HashMap()))
+
+        every { ncApi.getSharedItems(any(), any(), any(), any(), any()) } returns Observable.just(
+            Response.success(
+                result
+            )
+        )
+
+        // act
+        val observable: Observable<SharedItems>? =
+            sut.media(SharedItemsRepository.Parameters("", "", "", ""), SharedItemType.MEDIA)
+
+        // assert
+        Assert.assertNotNull("Shared items result is null", observable)
+
+        val sharedItems = observable!!.blockingFirst()
+        Assert.assertTrue("Shared items not empty", sharedItems.items.isEmpty())
+    }
+}