BugFix to InTextNumberAppender: toString() should work better now

The `toString()` method of `InTextNumberAppender` would more likely
return the raw number (like "2") instead of the textual representation
(like "two") for small numbers (for larger ones, this is the right
behavior). This has been fixed now.

src/main/java/org/optimizationBenchmarking/utils/text/numbers/InTextNumberAppender.java

@@ -50,9 +50,14 @@ public final ETextCase appendTo(final long v, final ETextCase textCase,
   /** {@inheritDoc} */
   @Override
   public final String toString(final long v, final ETextCase textCase) {
-    if ((v < 0) || (v >= InTextNumberAppender.SMALL_NUMBERS.length)
-        || ((textCase != null) && (textCase != ETextCase.IN_SENTENCE))) {
-      return super.toString(v, textCase);
+    final String str;
+    if ((v >= 0) && (v < InTextNumberAppender.SMALL_NUMBERS.length)) {
+      str = InTextNumberAppender.SMALL_NUMBERS[(int) v];
+      if (textCase == ETextCase.IN_SENTENCE) {
+        return str;
+      }
+      return (textCase.adjustCaseOfFirstCharInWord(str.charAt(0))//
+      + str.substring(1));
     }
     return Long.toString(v);
   }
@@ -72,9 +77,14 @@ public final ETextCase appendTo(final int v, final ETextCase textCase,
   /** {@inheritDoc} */
   @Override
   public final String toString(final int v, final ETextCase textCase) {
-    if ((v < 0) || (v >= InTextNumberAppender.SMALL_NUMBERS.length)
-        || ((textCase != null) && (textCase != ETextCase.IN_SENTENCE))) {
-      return super.toString(v, textCase);
+    final String str;
+    if ((v >= 0) && (v < InTextNumberAppender.SMALL_NUMBERS.length)) {
+      str = InTextNumberAppender.SMALL_NUMBERS[v];
+      if (textCase == ETextCase.IN_SENTENCE) {
+        return str;
+      }
+      return (textCase.adjustCaseOfFirstCharInWord(str.charAt(0))//
+      + str.substring(1));
     }
     return Integer.toString(v);
   }