]> git.saurik.com Git - apple/icu.git/blobdiff - icuSources/test/cintltst/cstrcase.c
ICU-64252.0.1.tar.gz
[apple/icu.git] / icuSources / test / cintltst / cstrcase.c
index cdbb85350f1dee82e242239431c9cf87be5cb8b1..e526b54f4ab31f0094ec8568beb2ed6677a0ec1d 100644 (file)
@@ -1,12 +1,14 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
 /*
 *******************************************************************************
 *
-*   Copyright (C) 2002-2006, International Business Machines
+*   Copyright (C) 2002-2016, International Business Machines
 *   Corporation and others.  All Rights Reserved.
 *
 *******************************************************************************
 *   file name:  cstrcase.c
-*   encoding:   US-ASCII
+*   encoding:   UTF-8
 *   tab size:   8 (not used)
 *   indentation:4
 *
@@ -25,6 +27,8 @@
 #include "unicode/ucasemap.h"
 #include "cmemory.h"
 #include "cintltst.h"
+#include "ucasemap_imp.h"
+#include "ustr_imp.h"
 
 /* test string case mapping functions --------------------------------------- */
 
@@ -43,12 +47,12 @@ TestCaseLower(void) {
     /* lowercase with root locale and separate buffers */
     buffer[0]=0xabcd;
     errorCode=U_ZERO_ERROR;
-    length=u_strToLower(buffer, sizeof(buffer)/U_SIZEOF_UCHAR,
-                        beforeLower, sizeof(beforeLower)/U_SIZEOF_UCHAR,
+    length=u_strToLower(buffer, UPRV_LENGTHOF(buffer),
+                        beforeLower, UPRV_LENGTHOF(beforeLower),
                         "",
                         &errorCode);
     if( U_FAILURE(errorCode) ||
-        length!=(sizeof(lowerRoot)/U_SIZEOF_UCHAR) ||
+        length!=(UPRV_LENGTHOF(lowerRoot)) ||
         uprv_memcmp(lowerRoot, buffer, length*U_SIZEOF_UCHAR)!=0 ||
         buffer[length]!=0
     ) {
@@ -63,14 +67,14 @@ buffer[length]==0 ? "yes" : "no",
 
     /* lowercase with turkish locale and in the same buffer */
     uprv_memcpy(buffer, beforeLower, sizeof(beforeLower));
-    buffer[sizeof(beforeLower)/U_SIZEOF_UCHAR]=0;
+    buffer[UPRV_LENGTHOF(beforeLower)]=0;
     errorCode=U_ZERO_ERROR;
-    length=u_strToLower(buffer, sizeof(buffer)/U_SIZEOF_UCHAR,
+    length=u_strToLower(buffer, UPRV_LENGTHOF(buffer),
                         buffer, -1, /* implicit srcLength */
                         "tr",
                         &errorCode);
     if( U_FAILURE(errorCode) ||
-        length!=(sizeof(lowerTurkish)/U_SIZEOF_UCHAR) ||
+        length!=(UPRV_LENGTHOF(lowerTurkish)) ||
         uprv_memcmp(lowerTurkish, buffer, length*U_SIZEOF_UCHAR)!=0 ||
         buffer[length]!=0
     ) {
@@ -84,11 +88,11 @@ buffer[length]==0 ? "yes" : "no",
     buffer[0]=buffer[2]=0xabcd;
     errorCode=U_ZERO_ERROR;
     length=u_strToLower(buffer, 2, /* set destCapacity=2 */
-                        beforeLower, sizeof(beforeLower)/U_SIZEOF_UCHAR,
+                        beforeLower, UPRV_LENGTHOF(beforeLower),
                         "",
                         &errorCode);
     if( errorCode!=U_BUFFER_OVERFLOW_ERROR ||
-        length!=(sizeof(lowerRoot)/U_SIZEOF_UCHAR) ||
+        length!=(UPRV_LENGTHOF(lowerRoot)) ||
         uprv_memcmp(lowerRoot, buffer, 2*U_SIZEOF_UCHAR)!=0 ||
         buffer[2]!=0xabcd
     ) {
@@ -100,8 +104,8 @@ buffer[length]==0 ? "yes" : "no",
 
     /* test error handling */
     errorCode=U_ZERO_ERROR;
-    length=u_strToLower(NULL, sizeof(buffer)/U_SIZEOF_UCHAR,
-                        beforeLower, sizeof(beforeLower)/U_SIZEOF_UCHAR,
+    length=u_strToLower(NULL, UPRV_LENGTHOF(buffer),
+                        beforeLower, UPRV_LENGTHOF(beforeLower),
                         "",
                         &errorCode);
     if(errorCode!=U_ILLEGAL_ARGUMENT_ERROR) {
@@ -113,7 +117,7 @@ buffer[length]==0 ? "yes" : "no",
     buffer[0]=0xabcd;
     errorCode=U_ZERO_ERROR;
     length=u_strToLower(buffer, -1,
-                        beforeLower, sizeof(beforeLower)/U_SIZEOF_UCHAR,
+                        beforeLower, UPRV_LENGTHOF(beforeLower),
                         "",
                         &errorCode);
     if( errorCode!=U_ILLEGAL_ARGUMENT_ERROR ||
@@ -141,12 +145,12 @@ TestCaseUpper(void) {
     /* uppercase with root locale and in the same buffer */
     uprv_memcpy(buffer, beforeUpper, sizeof(beforeUpper));
     errorCode=U_ZERO_ERROR;
-    length=u_strToUpper(buffer, sizeof(buffer)/U_SIZEOF_UCHAR,
-                        buffer, sizeof(beforeUpper)/U_SIZEOF_UCHAR,
+    length=u_strToUpper(buffer, UPRV_LENGTHOF(buffer),
+                        buffer, UPRV_LENGTHOF(beforeUpper),
                         "",
                         &errorCode);
     if( U_FAILURE(errorCode) ||
-        length!=(sizeof(upperRoot)/U_SIZEOF_UCHAR) ||
+        length!=(UPRV_LENGTHOF(upperRoot)) ||
         uprv_memcmp(upperRoot, buffer, length*U_SIZEOF_UCHAR)!=0 ||
         buffer[length]!=0
     ) {
@@ -159,12 +163,12 @@ TestCaseUpper(void) {
     /* uppercase with turkish locale and separate buffers */
     buffer[0]=0xabcd;
     errorCode=U_ZERO_ERROR;
-    length=u_strToUpper(buffer, sizeof(buffer)/U_SIZEOF_UCHAR,
-                        beforeUpper, sizeof(beforeUpper)/U_SIZEOF_UCHAR,
+    length=u_strToUpper(buffer, UPRV_LENGTHOF(buffer),
+                        beforeUpper, UPRV_LENGTHOF(beforeUpper),
                         "tr",
                         &errorCode);
     if( U_FAILURE(errorCode) ||
-        length!=(sizeof(upperTurkish)/U_SIZEOF_UCHAR) ||
+        length!=(UPRV_LENGTHOF(upperTurkish)) ||
         uprv_memcmp(upperTurkish, buffer, length*U_SIZEOF_UCHAR)!=0 ||
         buffer[length]!=0
     ) {
@@ -177,11 +181,11 @@ TestCaseUpper(void) {
     /* test preflighting */
     errorCode=U_ZERO_ERROR;
     length=u_strToUpper(NULL, 0,
-                        beforeUpper, sizeof(beforeUpper)/U_SIZEOF_UCHAR,
+                        beforeUpper, UPRV_LENGTHOF(beforeUpper),
                         "tr",
                         &errorCode);
     if( errorCode!=U_BUFFER_OVERFLOW_ERROR ||
-        length!=(sizeof(upperTurkish)/U_SIZEOF_UCHAR)
+        length!=(UPRV_LENGTHOF(upperTurkish))
     ) {
         log_err("error in u_strToUpper(turkish locale pure preflighting)=%ld error=%s\n",
             length,
@@ -191,8 +195,8 @@ TestCaseUpper(void) {
     /* test error handling */
     buffer[0]=0xabcd;
     errorCode=U_ZERO_ERROR;
-    length=u_strToUpper(buffer, sizeof(buffer)/U_SIZEOF_UCHAR,
-                        NULL, sizeof(beforeUpper)/U_SIZEOF_UCHAR,
+    length=u_strToUpper(buffer, UPRV_LENGTHOF(buffer),
+                        NULL, UPRV_LENGTHOF(beforeUpper),
                         "tr",
                         &errorCode);
     if( errorCode!=U_ILLEGAL_ARGUMENT_ERROR ||
@@ -206,7 +210,7 @@ TestCaseUpper(void) {
 
     buffer[0]=0xabcd;
     errorCode=U_ZERO_ERROR;
-    length=u_strToUpper(buffer, sizeof(buffer)/U_SIZEOF_UCHAR,
+    length=u_strToUpper(buffer, UPRV_LENGTHOF(buffer),
                         beforeUpper, -2,
                         "tr",
                         &errorCode);
@@ -236,21 +240,21 @@ TestCaseTitle(void) {
     UErrorCode errorCode;
 
     errorCode=U_ZERO_ERROR;
-    titleIterChars=ubrk_open(UBRK_CHARACTER, "", beforeTitle, sizeof(beforeTitle)/U_SIZEOF_UCHAR, &errorCode);
+    titleIterChars=ubrk_open(UBRK_CHARACTER, "", beforeTitle, UPRV_LENGTHOF(beforeTitle), &errorCode);
     if(U_FAILURE(errorCode)) {
-        log_err("error: ubrk_open(UBRK_CHARACTER)->%s\n", u_errorName(errorCode));
+        log_err_status(errorCode, "error: ubrk_open(UBRK_CHARACTER)->%s\n", u_errorName(errorCode));
         return;
     }
 
     /* titlecase with standard break iterator and in the same buffer */
     uprv_memcpy(buffer, beforeTitle, sizeof(beforeTitle));
     errorCode=U_ZERO_ERROR;
-    length=u_strToTitle(buffer, sizeof(buffer)/U_SIZEOF_UCHAR,
-                        buffer, sizeof(beforeTitle)/U_SIZEOF_UCHAR,
+    length=u_strToTitle(buffer, UPRV_LENGTHOF(buffer),
+                        buffer, UPRV_LENGTHOF(beforeTitle),
                         NULL, "",
                         &errorCode);
     if( U_FAILURE(errorCode) ||
-        length!=(sizeof(titleWord)/U_SIZEOF_UCHAR) ||
+        length!=(UPRV_LENGTHOF(titleWord)) ||
         uprv_memcmp(titleWord, buffer, length*U_SIZEOF_UCHAR)!=0 ||
         buffer[length]!=0
     ) {
@@ -263,12 +267,12 @@ TestCaseTitle(void) {
     /* titlecase with UBRK_CHARACTERS and separate buffers */
     buffer[0]=0xabcd;
     errorCode=U_ZERO_ERROR;
-    length=u_strToTitle(buffer, sizeof(buffer)/U_SIZEOF_UCHAR,
-                        beforeTitle, sizeof(beforeTitle)/U_SIZEOF_UCHAR,
+    length=u_strToTitle(buffer, UPRV_LENGTHOF(buffer),
+                        beforeTitle, UPRV_LENGTHOF(beforeTitle),
                         titleIterChars, "",
                         &errorCode);
     if( U_FAILURE(errorCode) ||
-        length!=(sizeof(titleChar)/U_SIZEOF_UCHAR) ||
+        length!=(UPRV_LENGTHOF(titleChar)) ||
         uprv_memcmp(titleChar, buffer, length*U_SIZEOF_UCHAR)!=0 ||
         buffer[length]!=0
     ) {
@@ -281,11 +285,11 @@ TestCaseTitle(void) {
     /* test preflighting */
     errorCode=U_ZERO_ERROR;
     length=u_strToTitle(NULL, 0,
-                        beforeTitle, sizeof(beforeTitle)/U_SIZEOF_UCHAR,
+                        beforeTitle, UPRV_LENGTHOF(beforeTitle),
                         titleIterChars, "",
                         &errorCode);
     if( errorCode!=U_BUFFER_OVERFLOW_ERROR ||
-        length!=(sizeof(titleChar)/U_SIZEOF_UCHAR)
+        length!=(UPRV_LENGTHOF(titleChar))
     ) {
         log_err("error in u_strToTitle(UBRK_CHARACTERS pure preflighting)=%ld error=%s\n",
             length,
@@ -295,8 +299,8 @@ TestCaseTitle(void) {
     /* test error handling */
     buffer[0]=0xabcd;
     errorCode=U_ZERO_ERROR;
-    length=u_strToTitle(buffer, sizeof(buffer)/U_SIZEOF_UCHAR,
-                        NULL, sizeof(beforeTitle)/U_SIZEOF_UCHAR,
+    length=u_strToTitle(buffer, UPRV_LENGTHOF(buffer),
+                        NULL, UPRV_LENGTHOF(beforeTitle),
                         titleIterChars, "",
                         &errorCode);
     if( errorCode!=U_ILLEGAL_ARGUMENT_ERROR ||
@@ -310,7 +314,7 @@ TestCaseTitle(void) {
 
     buffer[0]=0xabcd;
     errorCode=U_ZERO_ERROR;
-    length=u_strToTitle(buffer, sizeof(buffer)/U_SIZEOF_UCHAR,
+    length=u_strToTitle(buffer, UPRV_LENGTHOF(buffer),
                         beforeTitle, -2,
                         titleIterChars, "",
                         &errorCode);
@@ -326,6 +330,68 @@ TestCaseTitle(void) {
     ubrk_close(titleIterChars);
 }
 
+static void
+TestCaseDutchTitle(void) {
+    static const UChar
+
+    beforeTitle[]= { 0x69, 0x6A, 0x73, 0x73,  0x45, 0x6c, 0x20, 0x69, 0x67, 0x6c, 0x4f, 0x6f , 0x20 , 0x49, 0x4A, 0x53, 0x53, 0x45, 0x4C },
+    titleRoot[]=   { 0x49, 0x6A, 0x73, 0x73,  0x65, 0x6c, 0x20, 0x49, 0x67, 0x6c, 0x6f, 0x6f , 0x20 , 0x49, 0x6A, 0x73, 0x73, 0x65, 0x6C },
+    titleDutch[]=  { 0x49, 0x4A, 0x73, 0x73,  0x65, 0x6c, 0x20, 0x49, 0x67, 0x6c, 0x6f, 0x6f , 0x20 , 0x49, 0x4A, 0x73, 0x73, 0x65, 0x6C };
+
+    UChar buffer[32];
+    UBreakIterator *titleIterWord;
+    int32_t length;
+    UErrorCode errorCode;
+
+    errorCode=U_ZERO_ERROR;
+    titleIterWord=ubrk_open(UBRK_WORD, "", beforeTitle, UPRV_LENGTHOF(beforeTitle), &errorCode);
+    if(U_FAILURE(errorCode)) {
+        log_err_status(errorCode, "error: ubrk_open(UBRK_WORD)->%s\n", u_errorName(errorCode));
+        return;
+    }
+
+    /* titlecase with default locale */
+    buffer[0]=0xabcd;
+    errorCode=U_ZERO_ERROR;
+    length=u_strToTitle(buffer, UPRV_LENGTHOF(buffer),
+                        beforeTitle, UPRV_LENGTHOF(beforeTitle),
+                        titleIterWord, "",
+                        &errorCode);
+    if( U_FAILURE(errorCode) ||
+        length!=(UPRV_LENGTHOF(titleRoot)) ||
+        uprv_memcmp(titleRoot, buffer, length*U_SIZEOF_UCHAR)!=0 ||
+        buffer[length]!=0
+    ) {
+        char charsOut[21];
+        u_UCharsToChars(buffer,charsOut,sizeof(charsOut));
+        log_err("error in u_strToTitle(UBRK_CHARACTERS)=%ld error=%s root locale string matches: %s\noutput buffer is {%s}\n",
+            length,
+            u_errorName(errorCode),
+            uprv_memcmp(titleRoot, buffer, length*U_SIZEOF_UCHAR)==0 && buffer[length]==0 ? "yes" : "no", charsOut);
+    }
+    /* titlecase with Dutch locale */
+    buffer[0]=0xabcd;
+    errorCode=U_ZERO_ERROR;
+    length=u_strToTitle(buffer, UPRV_LENGTHOF(buffer),
+                        beforeTitle, UPRV_LENGTHOF(beforeTitle),
+                        titleIterWord, "nl",
+                        &errorCode);
+    if( U_FAILURE(errorCode) ||
+        length!=(UPRV_LENGTHOF(titleDutch)) ||
+        uprv_memcmp(titleDutch, buffer, length*U_SIZEOF_UCHAR)!=0 ||
+        buffer[length]!=0
+    ) {
+        char charsOut[21];
+        u_UCharsToChars(buffer,charsOut,sizeof(charsOut));
+        log_err("error in u_strToTitle(UBRK_CHARACTERS)=%ld error=%s dutch locale string matches: %s\noutput buffer is {%s}\n",
+            length,
+            u_errorName(errorCode),
+            uprv_memcmp(titleDutch, buffer, length*U_SIZEOF_UCHAR)==0 && buffer[length]==0 ? "yes" : "no", charsOut);
+    }
+
+    ubrk_close(titleIterWord);
+}
+
 #endif
 
 /* test case folding and case-insensitive string compare -------------------- */
@@ -393,12 +459,12 @@ TestCaseFolding(void) {
     /* test full string case folding with default option and separate buffers */
     buffer[0]=0xabcd;
     errorCode=U_ZERO_ERROR;
-    length=u_strFoldCase(buffer, sizeof(buffer)/U_SIZEOF_UCHAR,
-                        mixed, sizeof(mixed)/U_SIZEOF_UCHAR,
+    length=u_strFoldCase(buffer, UPRV_LENGTHOF(buffer),
+                        mixed, UPRV_LENGTHOF(mixed),
                         U_FOLD_CASE_DEFAULT,
                         &errorCode);
     if( U_FAILURE(errorCode) ||
-        length!=(sizeof(foldedDefault)/U_SIZEOF_UCHAR) ||
+        length!=(UPRV_LENGTHOF(foldedDefault)) ||
         uprv_memcmp(foldedDefault, buffer, length*U_SIZEOF_UCHAR)!=0 ||
         buffer[length]!=0
     ) {
@@ -412,12 +478,12 @@ TestCaseFolding(void) {
     if(isUnicode_3_1) {
         buffer[0]=0xabcd;
         errorCode=U_ZERO_ERROR;
-        length=u_strFoldCase(buffer, sizeof(buffer)/U_SIZEOF_UCHAR,
-                            mixed, sizeof(mixed)/U_SIZEOF_UCHAR,
+        length=u_strFoldCase(buffer, UPRV_LENGTHOF(buffer),
+                            mixed, UPRV_LENGTHOF(mixed),
                             U_FOLD_CASE_EXCLUDE_SPECIAL_I,
                             &errorCode);
         if( U_FAILURE(errorCode) ||
-            length!=(sizeof(foldedExcludeSpecialI)/U_SIZEOF_UCHAR) ||
+            length!=(UPRV_LENGTHOF(foldedExcludeSpecialI)) ||
             uprv_memcmp(foldedExcludeSpecialI, buffer, length*U_SIZEOF_UCHAR)!=0 ||
             buffer[length]!=0
         ) {
@@ -430,14 +496,14 @@ TestCaseFolding(void) {
 
     /* test full string case folding with default option and in the same buffer */
     uprv_memcpy(buffer, mixed, sizeof(mixed));
-    buffer[sizeof(mixed)/U_SIZEOF_UCHAR]=0;
+    buffer[UPRV_LENGTHOF(mixed)]=0;
     errorCode=U_ZERO_ERROR;
-    length=u_strFoldCase(buffer, sizeof(buffer)/U_SIZEOF_UCHAR,
+    length=u_strFoldCase(buffer, UPRV_LENGTHOF(buffer),
                         buffer, -1, /* implicit srcLength */
                         U_FOLD_CASE_DEFAULT,
                         &errorCode);
     if( U_FAILURE(errorCode) ||
-        length!=(sizeof(foldedDefault)/U_SIZEOF_UCHAR) ||
+        length!=(UPRV_LENGTHOF(foldedDefault)) ||
         uprv_memcmp(foldedDefault, buffer, length*U_SIZEOF_UCHAR)!=0 ||
         buffer[length]!=0
     ) {
@@ -451,12 +517,12 @@ TestCaseFolding(void) {
     if(isUnicode_3_1) {
         uprv_memcpy(buffer, mixed, sizeof(mixed));
         errorCode=U_ZERO_ERROR;
-        length=u_strFoldCase(buffer, sizeof(buffer)/U_SIZEOF_UCHAR,
-                            buffer, sizeof(mixed)/U_SIZEOF_UCHAR,
+        length=u_strFoldCase(buffer, UPRV_LENGTHOF(buffer),
+                            buffer, UPRV_LENGTHOF(mixed),
                             U_FOLD_CASE_EXCLUDE_SPECIAL_I,
                             &errorCode);
         if( U_FAILURE(errorCode) ||
-            length!=(sizeof(foldedExcludeSpecialI)/U_SIZEOF_UCHAR) ||
+            length!=UPRV_LENGTHOF(foldedExcludeSpecialI) ||
             uprv_memcmp(foldedExcludeSpecialI, buffer, length*U_SIZEOF_UCHAR)!=0 ||
             buffer[length]!=0
         ) {
@@ -471,11 +537,11 @@ TestCaseFolding(void) {
     buffer[0]=buffer[2]=0xabcd;
     errorCode=U_ZERO_ERROR;
     length=u_strFoldCase(buffer, 2, /* set destCapacity=2 */
-                        mixed, sizeof(mixed)/U_SIZEOF_UCHAR,
+                        mixed, UPRV_LENGTHOF(mixed),
                         U_FOLD_CASE_DEFAULT,
                         &errorCode);
     if( errorCode!=U_BUFFER_OVERFLOW_ERROR ||
-        length!=(sizeof(foldedDefault)/U_SIZEOF_UCHAR) ||
+        length!=UPRV_LENGTHOF(foldedDefault) ||
         uprv_memcmp(foldedDefault, buffer, 2*U_SIZEOF_UCHAR)!=0 ||
         buffer[2]!=0xabcd
     ) {
@@ -487,11 +553,11 @@ TestCaseFolding(void) {
 
     errorCode=U_ZERO_ERROR;
     length=u_strFoldCase(NULL, 0,
-                        mixed, sizeof(mixed)/U_SIZEOF_UCHAR,
+                        mixed, UPRV_LENGTHOF(mixed),
                         U_FOLD_CASE_DEFAULT,
                         &errorCode);
     if( errorCode!=U_BUFFER_OVERFLOW_ERROR ||
-        length!=(sizeof(foldedDefault)/U_SIZEOF_UCHAR)
+        length!=UPRV_LENGTHOF(foldedDefault)
     ) {
         log_err("error in u_strFoldCase(default pure preflighting)=%ld error=%s\n",
             length,
@@ -500,8 +566,8 @@ TestCaseFolding(void) {
 
     /* test error handling */
     errorCode=U_ZERO_ERROR;
-    length=u_strFoldCase(NULL, sizeof(buffer)/U_SIZEOF_UCHAR,
-                        mixed, sizeof(mixed)/U_SIZEOF_UCHAR,
+    length=u_strFoldCase(NULL, UPRV_LENGTHOF(buffer),
+                        mixed, UPRV_LENGTHOF(mixed),
                         U_FOLD_CASE_DEFAULT,
                         &errorCode);
     if(errorCode!=U_ILLEGAL_ARGUMENT_ERROR) {
@@ -513,7 +579,7 @@ TestCaseFolding(void) {
     buffer[0]=0xabcd;
     errorCode=U_ZERO_ERROR;
     length=u_strFoldCase(buffer, -1,
-                        mixed, sizeof(mixed)/U_SIZEOF_UCHAR,
+                        mixed, UPRV_LENGTHOF(mixed),
                         U_FOLD_CASE_DEFAULT,
                         &errorCode);
     if( errorCode!=U_ILLEGAL_ARGUMENT_ERROR ||
@@ -527,8 +593,8 @@ TestCaseFolding(void) {
 
     buffer[0]=0xabcd;
     errorCode=U_ZERO_ERROR;
-    length=u_strFoldCase(buffer, sizeof(buffer)/U_SIZEOF_UCHAR,
-                        NULL, sizeof(mixed)/U_SIZEOF_UCHAR,
+    length=u_strFoldCase(buffer, UPRV_LENGTHOF(buffer),
+                        NULL, UPRV_LENGTHOF(mixed),
                         U_FOLD_CASE_EXCLUDE_SPECIAL_I,
                         &errorCode);
     if( errorCode!=U_ILLEGAL_ARGUMENT_ERROR ||
@@ -542,7 +608,7 @@ TestCaseFolding(void) {
 
     buffer[0]=0xabcd;
     errorCode=U_ZERO_ERROR;
-    length=u_strFoldCase(buffer, sizeof(buffer)/U_SIZEOF_UCHAR,
+    length=u_strFoldCase(buffer, UPRV_LENGTHOF(buffer),
                         mixed, -2,
                         U_FOLD_CASE_EXCLUDE_SPECIAL_I,
                         &errorCode);
@@ -575,12 +641,14 @@ TestCaseCompare(void) {
 
     lenMixed=u_strlen(mixed);
     lenOtherDefault=u_strlen(otherDefault);
+    (void)lenOtherDefault;    /* Suppress set but not used warning. */
     lenOtherExcludeSpecialI=u_strlen(otherExcludeSpecialI);
     lenDifferent=u_strlen(different);
 
     /* if unicodeVersion()>=3.1 then test exclude-special-i cases as well */
     u_getUnicodeVersion(unicodeVersion);
     isUnicode_3_1= uprv_memcmp(unicodeVersion, unicode_3_1, 4)>=0;
+    (void)isUnicode_3_1;    /* Suppress set but not used warning. */
 
     /* test u_strcasecmp() */
     result=u_strcasecmp(mixed, otherDefault, U_FOLD_CASE_DEFAULT);
@@ -677,11 +745,15 @@ TestUCaseMap(void) {
     if(0!=strcmp(locale, "tr")) {
         log_err("ucasemap_getLocale(ucasemap_open(\"tur\"))==%s!=\"tr\"\n", locale);
     }
-    /* overly long locale IDs get truncated to their language code to avoid unnecessary allocation */
+    /* overly long locale IDs may get truncated to their language code to avoid unnecessary allocation */
     ucasemap_setLocale(csm, "I-kLInGOn-the-quick-brown-fox-jumps-over-the-lazy-dog", &errorCode);
     locale=ucasemap_getLocale(csm);
-    if(0!=strcmp(locale, "i-klingon")) {
-        log_err("ucasemap_getLocale(ucasemap_setLocale(\"I-kLInGOn-the-quick-br...\"))==%s!=\"i-klingon\"\n", locale);
+    // "I-kLInGOn-the-quick-brown-fox-jumps-over-the-lazy-dog" is canonicalized
+    // into "tlh-the-quick-brown-fox-jumps-over-the-lazy-dog"
+    // and "the" will be treated as an extlang which replaces "tlh".
+    if(0!=strncmp(locale, "the", 3)) {
+        log_err("ucasemap_getLocale(ucasemap_setLocale(\"I-kLInGOn-the-quick-br...\"))==%s\n"
+                "    does not start with \"the\"\n", locale);
     }
 
     errorCode=U_ZERO_ERROR;
@@ -776,19 +848,213 @@ TestUCaseMap(void) {
         log_err("ucasemap_utf8ToUpper(overflow) failed\n");
     }
 
+    /* C API coverage for case folding. More thorough test via C++ intltest's StringCaseTest::TestCasing(). */
+    errorCode=U_ZERO_ERROR;
+    utf8Out[0]=0;
+    length=ucasemap_utf8FoldCase(csm, utf8Out, (int32_t)sizeof(utf8Out), aBc, 3, &errorCode);
+    if(U_FAILURE(errorCode) || length!=3 || 0!=strcmp(abc, utf8Out)) {
+        log_err("ucasemap_utf8FoldCase(aBc) failed\n");
+    }
+
+    ucasemap_close(csm);
+}
+
+#if !UCONFIG_NO_BREAK_ITERATION
+
+/* Try titlecasing with options. */
+static void
+TestUCaseMapToTitle(void) {
+    /* "a 'CaT. A 'dOg! 'eTc." where '=U+02BB */
+    /*
+     * Note: The sentence BreakIterator does not recognize a '.'
+     * as a sentence terminator if it is followed by lowercase.
+     * That is why the example has the '!'.
+     */
+    static const UChar
+
+    beforeTitle[]=      { 0x61, 0x20, 0x2bb, 0x43, 0x61, 0x54, 0x2e, 0x20, 0x41, 0x20, 0x2bb, 0x64, 0x4f, 0x67, 0x21, 0x20, 0x2bb, 0x65, 0x54, 0x63, 0x2e },
+    titleWord[]=        { 0x41, 0x20, 0x2bb, 0x43, 0x61, 0x74, 0x2e, 0x20, 0x41, 0x20, 0x2bb, 0x44, 0x6f, 0x67, 0x21, 0x20, 0x2bb, 0x45, 0x74, 0x63, 0x2e },
+    titleWordNoAdjust[]={ 0x41, 0x20, 0x2bb, 0x63, 0x61, 0x74, 0x2e, 0x20, 0x41, 0x20, 0x2bb, 0x64, 0x6f, 0x67, 0x21, 0x20, 0x2bb, 0x65, 0x74, 0x63, 0x2e },
+    titleSentNoLower[]= { 0x41, 0x20, 0x2bb, 0x43, 0x61, 0x54, 0x2e, 0x20, 0x41, 0x20, 0x2bb, 0x64, 0x4f, 0x67, 0x21, 0x20, 0x2bb, 0x45, 0x54, 0x63, 0x2e };
+
+    UChar buffer[32];
+    UCaseMap *csm;
+    UBreakIterator *sentenceIter;
+    const UBreakIterator *iter;
+    int32_t length;
+    UErrorCode errorCode;
+
+    errorCode=U_ZERO_ERROR;
+    csm=ucasemap_open("", 0, &errorCode);
+    if(U_FAILURE(errorCode)) {
+        log_err("ucasemap_open(\"\") failed - %s\n", u_errorName(errorCode));
+        return;
+    }
+
+    iter=ucasemap_getBreakIterator(csm);
+    if(iter!=NULL) {
+        log_err("ucasemap_getBreakIterator() returns %p!=NULL before setting any iterator or titlecasing\n", iter);
+    }
+
+    /* Use default UBreakIterator: Word breaks. */
+    length=ucasemap_toTitle(csm, buffer, UPRV_LENGTHOF(buffer), beforeTitle, UPRV_LENGTHOF(beforeTitle), &errorCode);
+    if( U_FAILURE(errorCode) ||
+        length!=UPRV_LENGTHOF(titleWord) ||
+        0!=u_memcmp(buffer, titleWord, length) ||
+        buffer[length]!=0
+    ) {
+        log_err_status(errorCode, "ucasemap_toTitle(default iterator)=%ld failed - %s\n", (long)length, u_errorName(errorCode));
+    }
+    if (U_SUCCESS(errorCode)) {
+        iter=ucasemap_getBreakIterator(csm);
+        if(iter==NULL) {
+            log_err("ucasemap_getBreakIterator() returns NULL after titlecasing\n");
+        }
+    }
+
+    /* Try U_TITLECASE_NO_BREAK_ADJUSTMENT. */
+    ucasemap_setOptions(csm, U_TITLECASE_NO_BREAK_ADJUSTMENT, &errorCode);
+    if(U_FAILURE(errorCode)) {
+        log_err_status(errorCode, "error: ucasemap_setOptions(U_TITLECASE_NO_BREAK_ADJUSTMENT) failed - %s\n", u_errorName(errorCode));
+        return;
+    }
+
+    length=ucasemap_toTitle(csm, buffer, UPRV_LENGTHOF(buffer), beforeTitle, UPRV_LENGTHOF(beforeTitle), &errorCode);
+    if( U_FAILURE(errorCode) ||
+        length!=UPRV_LENGTHOF(titleWordNoAdjust) ||
+        0!=u_memcmp(buffer, titleWordNoAdjust, length) ||
+        buffer[length]!=0
+    ) {
+        log_err("ucasemap_toTitle(default iterator, no break adjustment)=%ld failed - %s\n", (long)length, u_errorName(errorCode));
+    }
+
+    /* Set a sentence break iterator. */
+    errorCode=U_ZERO_ERROR;
+    sentenceIter=ubrk_open(UBRK_SENTENCE, "", NULL, 0, &errorCode);
+    if(U_FAILURE(errorCode)) {
+        log_err("error: ubrk_open(UBRK_SENTENCE) failed - %s\n", u_errorName(errorCode));
+        ucasemap_close(csm);
+        return;
+    }
+    ucasemap_setBreakIterator(csm, sentenceIter, &errorCode);
+    if(U_FAILURE(errorCode)) {
+        log_err("error: ucasemap_setBreakIterator(sentence iterator) failed - %s\n", u_errorName(errorCode));
+        ubrk_close(sentenceIter);
+        ucasemap_close(csm);
+        return;
+    }
+    iter=ucasemap_getBreakIterator(csm);
+    if(iter!=sentenceIter) {
+        log_err("ucasemap_getBreakIterator() returns %p!=%p after setting the iterator\n", iter, sentenceIter);
+    }
+
+    ucasemap_setOptions(csm, U_TITLECASE_NO_LOWERCASE, &errorCode);
+    if(U_FAILURE(errorCode)) {
+        log_err("error: ucasemap_setOptions(U_TITLECASE_NO_LOWERCASE) failed - %s\n", u_errorName(errorCode));
+        return;
+    }
+
+    /* Use the sentence break iterator with the option. Preflight first. */
+    length=ucasemap_toTitle(csm, NULL, 0, beforeTitle, UPRV_LENGTHOF(beforeTitle), &errorCode);
+    if( errorCode!=U_BUFFER_OVERFLOW_ERROR ||
+        length!=UPRV_LENGTHOF(titleSentNoLower)
+    ) {
+        log_err("ucasemap_toTitle(preflight sentence break iterator, no lowercasing)=%ld failed - %s\n", (long)length, u_errorName(errorCode));
+    }
+
+    errorCode=U_ZERO_ERROR;
+    buffer[0]=0;
+    length=ucasemap_toTitle(csm, buffer, UPRV_LENGTHOF(buffer), beforeTitle, UPRV_LENGTHOF(beforeTitle), &errorCode);
+    if( U_FAILURE(errorCode) ||
+        length!=UPRV_LENGTHOF(titleSentNoLower) ||
+        0!=u_memcmp(buffer, titleSentNoLower, length) ||
+        buffer[length]!=0
+    ) {
+        log_err("ucasemap_toTitle(sentence break iterator, no lowercasing)=%ld failed - %s\n", (long)length, u_errorName(errorCode));
+    }
+
+    /* UTF-8 C API coverage. More thorough test via C++ intltest's StringCaseTest::TestCasing(). */
+    {
+        char utf8BeforeTitle[64], utf8TitleSentNoLower[64], utf8[64];
+        int32_t utf8BeforeTitleLength, utf8TitleSentNoLowerLength;
+
+        errorCode=U_ZERO_ERROR;
+        u_strToUTF8(utf8BeforeTitle, (int32_t)sizeof(utf8BeforeTitle), &utf8BeforeTitleLength, beforeTitle, UPRV_LENGTHOF(beforeTitle), &errorCode);
+        u_strToUTF8(utf8TitleSentNoLower, (int32_t)sizeof(utf8TitleSentNoLower), &utf8TitleSentNoLowerLength, titleSentNoLower, UPRV_LENGTHOF(titleSentNoLower), &errorCode);
+
+        length=ucasemap_utf8ToTitle(csm, utf8, (int32_t)sizeof(utf8), utf8BeforeTitle, utf8BeforeTitleLength, &errorCode);
+        if( U_FAILURE(errorCode) ||
+            length!=utf8TitleSentNoLowerLength ||
+            0!=uprv_memcmp(utf8, utf8TitleSentNoLower, length) ||
+            utf8[length]!=0
+        ) {
+            log_err("ucasemap_utf8ToTitle(sentence break iterator, no lowercasing)=%ld failed - %s\n", (long)length, u_errorName(errorCode));
+        }
+    }
+
     ucasemap_close(csm);
 }
 
+#endif
+
+/* Test case for internal API u_caseInsensitivePrefixMatch */
+static void
+TestUCaseInsensitivePrefixMatch(void) {
+    struct {
+        const char     *s1;
+        const char     *s2;
+        int32_t         r1;
+        int32_t         r2;
+    } testCases[] = {
+        {"ABC", "ab", 2, 2},
+        {"ABCD", "abcx", 3, 3},
+        {"ABC", "xyz", 0, 0},
+        /* U+00DF LATIN SMALL LETTER SHARP S */
+        {"A\\u00dfBC", "Ass", 2, 3},
+        {"Fust", "Fu\\u00dfball", 2, 2},
+        {"\\u00dfsA", "s\\u00dfB", 2, 2},
+        {"\\u00dfs", "s\\u00df", 2, 2},
+        /* U+0130 LATIN CAPITAL LETTER I WITH DOT ABOVE */
+        {"XYZ\\u0130i\\u0307xxx", "xyzi\\u0307\\u0130yyy", 6, 6},
+        {0, 0, 0, 0}
+    };
+    int32_t i;
+
+    for (i = 0; testCases[i].s1 != 0; i++) {
+        UErrorCode sts = U_ZERO_ERROR;
+        UChar u1[64], u2[64];
+        int32_t matchLen1, matchLen2;
+
+        u_unescape(testCases[i].s1, u1, 64);
+        u_unescape(testCases[i].s2, u2, 64);
+
+        u_caseInsensitivePrefixMatch(u1, -1, u2, -1, 0, &matchLen1, &matchLen2, &sts);
+        if (U_FAILURE(sts)) {
+            log_err("error: %s, s1=%s, s2=%s", u_errorName(sts), testCases[i].s1, testCases[i].s2);
+        } else if (matchLen1 != testCases[i].r1 || matchLen2 != testCases[i].r2) {
+            log_err("s1=%s, s2=%2 / match len1=%d, len2=%d / expected len1=%d, len2=%d",
+                testCases[i].s1, testCases[i].s2,
+                matchLen1, matchLen2,
+                testCases[i].r1, testCases[i].r2);
+        }
+    }
+}
+
 void addCaseTest(TestNode** root);
 
 void addCaseTest(TestNode** root) {
     /* cstrcase.c functions, declared in cucdtst.h */
     addTest(root, &TestCaseLower, "tsutil/cstrcase/TestCaseLower");
     addTest(root, &TestCaseUpper, "tsutil/cstrcase/TestCaseUpper");
-#if !UCONFIG_NO_BREAK_ITERATION
+#if !UCONFIG_NO_BREAK_ITERATION && !UCONFIG_NO_FILE_IO
     addTest(root, &TestCaseTitle, "tsutil/cstrcase/TestCaseTitle");
+    addTest(root, &TestCaseDutchTitle, "tsutil/cstrcase/TestCaseDutchTitle");
 #endif
     addTest(root, &TestCaseFolding, "tsutil/cstrcase/TestCaseFolding");
     addTest(root, &TestCaseCompare, "tsutil/cstrcase/TestCaseCompare");
     addTest(root, &TestUCaseMap, "tsutil/cstrcase/TestUCaseMap");
+#if !UCONFIG_NO_BREAK_ITERATION && !UCONFIG_NO_FILE_IO
+    addTest(root, &TestUCaseMapToTitle, "tsutil/cstrcase/TestUCaseMapToTitle");
+#endif
+    addTest(root, &TestUCaseInsensitivePrefixMatch, "tsutil/cstrcase/TestUCaseInsensitivePrefixMatch");
 }