Add DescriptionEditHelper Unit Tests (#4798)

app/src/test/kotlin/fr/free/nrw/commons/description/DescriptionEditHelperUnitTest.kt

@@ -0,0 +1,113 @@
+package fr.free.nrw.commons.description
+
+import android.content.Context
+import fr.free.nrw.commons.Media
+import fr.free.nrw.commons.actions.PageEditClient
+import fr.free.nrw.commons.notification.NotificationHelper
+import io.reactivex.Observable
+import org.junit.Before
+import org.junit.Test
+import org.junit.jupiter.api.Assertions.assertEquals
+import org.mockito.ArgumentMatchers.anyString
+import org.mockito.Mock
+import org.mockito.Mockito.*
+import org.mockito.MockitoAnnotations
+import java.lang.reflect.Method
+
+class DescriptionEditHelperUnitTest {
+
+    private lateinit var helper: DescriptionEditHelper
+
+    @Mock
+    private lateinit var context: Context
+
+    @Mock
+    private lateinit var notificationHelper: NotificationHelper
+
+    @Mock
+    private lateinit var pageEditClient: PageEditClient
+
+    @Mock
+    private lateinit var media: Media
+
+    @Before
+    fun setUp() {
+        MockitoAnnotations.initMocks(this)
+        helper = DescriptionEditHelper(notificationHelper, pageEditClient)
+    }
+
+    @Test
+    fun testAddDescription() {
+        `when`(media.filename).thenReturn("")
+        `when`(
+            pageEditClient.edit(
+                anyString(),
+                anyString(),
+                anyString()
+            )
+        ).thenReturn(Observable.just(true))
+        helper.addDescription(context, media, "test")
+        verify(pageEditClient, times(1)).edit(anyString(), anyString(), anyString())
+    }
+
+    @Test
+    fun testAddCaption() {
+        `when`(media.filename).thenReturn("")
+        `when`(
+            pageEditClient.setCaptions(
+                anyString(),
+                anyString(),
+                anyString(),
+                anyString()
+            )
+        ).thenReturn(Observable.just(0))
+        helper.addCaption(context, media, "test", "test")
+        verify(pageEditClient, times(1)).setCaptions(
+            anyString(),
+            anyString(),
+            anyString(),
+            anyString()
+        )
+    }
+
+    @Test
+    fun testShowCaptionEditNotificationCaseFalse() {
+        val method: Method = DescriptionEditHelper::class.java.getDeclaredMethod(
+            "showCaptionEditNotification", Context::class.java, Media::class.java,
+            Int::class.java
+        )
+        method.isAccessible = true
+        assertEquals(method.invoke(helper, context, media, 0), false)
+    }
+
+    @Test
+    fun testShowCaptionEditNotificationCaseTrue() {
+        val method: Method = DescriptionEditHelper::class.java.getDeclaredMethod(
+            "showCaptionEditNotification", Context::class.java, Media::class.java,
+            Int::class.java
+        )
+        method.isAccessible = true
+        assertEquals(method.invoke(helper, context, media, 1), true)
+    }
+
+    @Test
+    fun testShowDescriptionEditNotificationCaseFalse() {
+        val method: Method = DescriptionEditHelper::class.java.getDeclaredMethod(
+            "showDescriptionEditNotification", Context::class.java, Media::class.java,
+            Boolean::class.java
+        )
+        method.isAccessible = true
+        assertEquals(method.invoke(helper, context, media, false), false)
+    }
+
+    @Test
+    fun testShowDescriptionEditNotificationCaseTrue() {
+        val method: Method = DescriptionEditHelper::class.java.getDeclaredMethod(
+            "showDescriptionEditNotification", Context::class.java, Media::class.java,
+            Boolean::class.java
+        )
+        method.isAccessible = true
+        assertEquals(method.invoke(helper, context, media, true), true)
+    }
+
+}