test/java/lang/String/ToLowerCase.java

*** 21,31 ****
   * questions.
   */
  
  /*
      @test
!     @bug 4217441 4533872 4900935 8020037
      @summary toLowerCase should lower-case Greek Sigma correctly depending
               on the context (final/non-final).  Also it should handle
               Locale specific (lt, tr, and az) lowercasings and supplementary
               characters correctly.
  */
--- 21,31 ----
   * questions.
   */
  
  /*
      @test
!     @bug 4217441 4533872 4900935 8020037 8032012
      @summary toLowerCase should lower-case Greek Sigma correctly depending
               on the context (final/non-final).  Also it should handle
               Locale specific (lt, tr, and az) lowercasings and supplementary
               characters correctly.
  */
*** 102,111 ****
--- 102,127 ----
          test("\uD801\uDC00\uD801\uDC01\uD801\uDC02", Locale.US, "\uD801\uDC28\uD801\uDC29\uD801\uDC2A");
          test("\uD801\uDC00A\uD801\uDC01B\uD801\uDC02C", Locale.US, "\uD801\uDC28a\uD801\uDC29b\uD801\uDC2Ac");
          // invalid code point tests:
          test("\uD800\uD800\uD801A\uDC00\uDC00\uDC00B", Locale.US, "\uD800\uD800\uD801a\uDC00\uDC00\uDC00b");
  
+         // test bmp + supp1
+         StringBuilder src = new StringBuilder(0x20000);
+         StringBuilder exp = new StringBuilder(0x20000);
+         for (int cp = 0; cp < 0x20000; cp++) {
+             if (cp >= Character.MIN_HIGH_SURROGATE && cp <= Character.MAX_HIGH_SURROGATE) {
+                 continue;
+             }
+             int lowerCase = Character.toLowerCase(cp);
+             if (lowerCase == -1) {    //Character.ERROR
+                 continue;
+             }
+             src.appendCodePoint(cp);
+             exp.appendCodePoint(lowerCase);
+         }
+         test(src.toString(), Locale.US, exp.toString());
+ 
      }
  
      static void test(String in, Locale locale, String expected) {
          String result = in.toLowerCase(locale);
          if (!result.equals(expected)) {