Update UserAvatarHelperTest.kt

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.."))
     }
 }
\ No newline at end of file