renamed test class

core-java/src/main/java/com/baeldung/string/TitleCaseConverter.java

@@ -54,7 +54,7 @@ public class TitleCaseConverter {
             return text;
         }
 
-        return UCharacter.toTitleCase(text, null);
+        return UCharacter.toTitleCase(text, BreakIterator.getTitleInstance());
     }
 
     public static String convertToTileCaseWordUtilsFull(String text) {

core-java/src/test/java/com/baeldung/string/TitleCaseConverterUnitTest.java

@@ -5,7 +5,7 @@ import org.junit.Test;
 
 import static org.junit.Assert.*;
 
-public class TitleCaseConverterTest {
+public class TitleCaseConverterUnitTest {
 
     private static final String TEXT = "tHis IS a tiTLe";
     private static final String TEXT_EXPECTED = "This Is A Title";