Merge pull request #393 from filipedelimabrito/fix/crash_on_building_default_avatar

Fix on building the default avatar

rocket-chat-android-widgets/src/main/java/chat/rocket/android/widget/helper/UserAvatarHelper.kt

@@ -70,9 +70,9 @@ object UserAvatarHelper {
 
         val splitUsername = username.split(".")
         val splitCount = splitUsername.size
-        if (splitCount > 1 && splitUsername[0].isNotEmpty() && splitUsername[1].isNotEmpty()) {
+        if (splitCount > 1 && splitUsername[0].isNotEmpty() && splitUsername[splitCount-1].isNotEmpty()) {
             val firstInitial = splitUsername[0].substring(0, 1)
-            val secondInitial = splitUsername[1].substring(0, 1)
+            val secondInitial = splitUsername[splitCount-1].substring(0, 1)
             return (firstInitial + secondInitial).toUpperCase()
         } else {
             if (username.length > 1) {

rocket-chat-android-widgets/src/test/kotlin/chat/rocket/android/widget/helper/UserAvatarHelperTest.kt

 import chat.rocket.android.widget.helper.UserAvatarHelper
 import org.junit.Test
+import kotlin.test.assertEquals
 
 class UserAvatarHelperTest {
 
     @Test
     fun getUsernameInitialsTest() {
-        assert(UserAvatarHelper.getUsernameInitials("") == "?")
-        assert(UserAvatarHelper.getUsernameInitials("?") == "?")
-        assert(UserAvatarHelper.getUsernameInitials("f") == "F")
-        assert(UserAvatarHelper.getUsernameInitials("B") == "B")
-        assert(UserAvatarHelper.getUsernameInitials("fo") == "FO")
-        assert(UserAvatarHelper.getUsernameInitials("FO") == "FO")
-        assert(UserAvatarHelper.getUsernameInitials("fOo") == "FO")
-        assert(UserAvatarHelper.getUsernameInitials("FOO") == "FO")
-        assert(UserAvatarHelper.getUsernameInitials("F.O") == "FO")
-        assert(UserAvatarHelper.getUsernameInitials("F.o") == "FO")
-        assert(UserAvatarHelper.getUsernameInitials("Foo.bar") == "FB")
-        assert(UserAvatarHelper.getUsernameInitials("Foobar.bar") == "FB")
-        assert(UserAvatarHelper.getUsernameInitials("Foobar.bar.zab") == "FZ")
-        assert(UserAvatarHelper.getUsernameInitials("..") == "..")
-        assert(UserAvatarHelper.getUsernameInitials("...") == "..")
-        assert(UserAvatarHelper.getUsernameInitials(".Foo.") == ".F")
-        assert(UserAvatarHelper.getUsernameInitials("Foo..") == "FO")
+        assertEquals("?", UserAvatarHelper.getUsernameInitials(""))
+        assertEquals("?", UserAvatarHelper.getUsernameInitials("?"))
+        assertEquals("F", UserAvatarHelper.getUsernameInitials("f"))
+        assertEquals("B", UserAvatarHelper.getUsernameInitials("B"))
+        assertEquals("FO", UserAvatarHelper.getUsernameInitials("Fo"))
+        assertEquals("FO", UserAvatarHelper.getUsernameInitials("FO"))
+        assertEquals("FO", UserAvatarHelper.getUsernameInitials("fOo"))
+        assertEquals("FO", UserAvatarHelper.getUsernameInitials("FOO"))
+        assertEquals("FO", UserAvatarHelper.getUsernameInitials("F.O"))
+        assertEquals("FO", UserAvatarHelper.getUsernameInitials("F.o"))
+        assertEquals("FB", UserAvatarHelper.getUsernameInitials("Foo.bar"))
+        assertEquals("FB", UserAvatarHelper.getUsernameInitials("Foobar.bar"))
+        assertEquals("FZ", UserAvatarHelper.getUsernameInitials("Foobar.bar.zab"))
+        assertEquals("..", UserAvatarHelper.getUsernameInitials(".."))
+        assertEquals("..", UserAvatarHelper.getUsernameInitials("..."))
+        assertEquals(".F", UserAvatarHelper.getUsernameInitials(".Foo."))
+        assertEquals("FO", UserAvatarHelper.getUsernameInitials("Foo.."))
     }
 }
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