Add OCFileIconTests

Signed-off-by: Alper Ozturk <alperozturk@lions-macbook.local>
Signed-off-by: alperozturk <alper_ozturk@proton.me>

app/src/androidTest/java/com/owncloud/android/datamodel/OCFileIconTests.kt

@@ -1,4 +1,49 @@
 package com.owncloud.android.datamodel
 
+import android.content.Context
+import android.content.res.Resources
+import com.owncloud.android.MainApp
+import com.owncloud.android.R
+import org.junit.After
+import org.junit.Before
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.mockito.Mock
+import org.mockito.Mockito.`when`
+import org.mockito.MockitoAnnotations
+import org.mockito.junit.MockitoJUnitRunner
+
+@RunWith(MockitoJUnitRunner::class)
 class OCFileIconTests {
+
+    private val path = "/path/to/a/file.txt"
+    private var sut: OCFile? = null
+
+    @Mock
+    private lateinit var context: Context
+
+    @Mock
+    private lateinit var contextResources: Resources
+
+    @Before
+    fun setup() {
+        sut = OCFile(path)
+        MockitoAnnotations.openMocks(this)
+        `when`(context.applicationContext).thenReturn(context)
+        `when`(context.resources).thenReturn(contextResources)
+
+        MainApp.setAppContext(context)
+    }
+
+    @Test
+    fun testGetFileOverlayIconWhenFileIsAutoUploadFolderShouldReturnFolderOverlayUploadIcon() {
+        val fileOverlayIcon = sut?.getFileOverlayIcon(true)
+        val expectedDrawable = R.drawable.ic_folder_overlay_upload
+        assert(fileOverlayIcon == expectedDrawable)
+    }
+
+    @After
+    fun destroy() {
+        sut = null
+    }
 }