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-rw-r--r--stdio-common/tst-grouping_iterator.c262
1 files changed, 262 insertions, 0 deletions
diff --git a/stdio-common/tst-grouping_iterator.c b/stdio-common/tst-grouping_iterator.c
new file mode 100644
index 0000000000..97d8f40628
--- /dev/null
+++ b/stdio-common/tst-grouping_iterator.c
@@ -0,0 +1,262 @@
+/* Test for struct grouping_iterator.
+   Copyright (C) 2022 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <https://www.gnu.org/licenses/>.  */
+
+/* Rebuild the fail to access internal-only functions.  */
+#include <grouping_iterator.c>
+
+#include <stdio.h>
+#include <support/check.h>
+#include <support/support.h>
+#include <support/test-driver.h>
+
+static void
+check (int lineno, const char *groupings,
+       const char *input, const char *expected)
+{
+  if (test_verbose)
+    {
+      printf ("info: %s:%d: \"%s\" via \"", __FILE__, lineno, input);
+      for (const char *p = groupings; *p != 0; ++p)
+        printf ("\\%o", *p & 0xff);
+      printf ("\" to \"%s\"\n", expected);
+    }
+
+  size_t initial_group = strchrnul (expected, '\'') - expected;
+  size_t separators = 0;
+  for (const char *p = expected; *p != '\0'; ++p)
+    separators += *p == '\'';
+
+  size_t digits = strlen (input);
+  char *out = xmalloc (2 * digits + 1);
+
+  struct grouping_iterator it;
+  TEST_COMPARE (grouping_iterator_setup (&it, digits, groupings),
+                strchr (expected, '\'') != NULL);
+  TEST_COMPARE (it.remaining, digits);
+  TEST_COMPARE (it.remaining_in_current_group, initial_group);
+  TEST_COMPARE (it.separators, separators);
+
+  char *p = out;
+  while (*input != '\0')
+    {
+      if (__grouping_iterator_next (&it))
+        *p++ = '\'';
+      TEST_COMPARE (it.separators, separators);
+      *p++ = *input++;
+    }
+  *p++ = '\0';
+
+  TEST_COMPARE (it.remaining, 0);
+  TEST_COMPARE (it.remaining_in_current_group, 0);
+
+  TEST_COMPARE_STRING (out, expected);
+
+  free (out);
+}
+
+static int
+do_test (void)
+{
+  check (__LINE__, "", "1", "1");
+  check (__LINE__, "", "12", "12");
+  check (__LINE__, "", "123", "123");
+  check (__LINE__, "", "1234", "1234");
+
+  check (__LINE__, "\3", "1", "1");
+  check (__LINE__, "\3", "12", "12");
+  check (__LINE__, "\3", "123", "123");
+  check (__LINE__, "\3", "1234", "1'234");
+  check (__LINE__, "\3", "12345", "12'345");
+  check (__LINE__, "\3", "123456", "123'456");
+  check (__LINE__, "\3", "1234567", "1'234'567");
+  check (__LINE__, "\3", "12345678", "12'345'678");
+  check (__LINE__, "\3", "123456789", "123'456'789");
+  check (__LINE__, "\3", "1234567890", "1'234'567'890");
+
+  check (__LINE__, "\2\3", "1", "1");
+  check (__LINE__, "\2\3", "12", "12");
+  check (__LINE__, "\2\3", "123", "1'23");
+  check (__LINE__, "\2\3", "1234", "12'34");
+  check (__LINE__, "\2\3", "12345", "123'45");
+  check (__LINE__, "\2\3", "123456", "1'234'56");
+  check (__LINE__, "\2\3", "1234567", "12'345'67");
+  check (__LINE__, "\2\3", "12345678", "123'456'78");
+  check (__LINE__, "\2\3", "123456789", "1'234'567'89");
+  check (__LINE__, "\2\3", "1234567890", "12'345'678'90");
+
+  check (__LINE__, "\3\2", "1", "1");
+  check (__LINE__, "\3\2", "12", "12");
+  check (__LINE__, "\3\2", "123", "123");
+  check (__LINE__, "\3\2", "1234", "1'234");
+  check (__LINE__, "\3\2", "12345", "12'345");
+  check (__LINE__, "\3\2", "123456", "1'23'456");
+  check (__LINE__, "\3\2", "1234567", "12'34'567");
+  check (__LINE__, "\3\2", "12345678", "1'23'45'678");
+  check (__LINE__, "\3\2", "123456789", "12'34'56'789");
+  check (__LINE__, "\3\2", "1234567890", "1'23'45'67'890");
+
+  check (__LINE__, "\3\2\1", "1", "1");
+  check (__LINE__, "\3\2\1", "12", "12");
+  check (__LINE__, "\3\2\1", "123", "123");
+  check (__LINE__, "\3\2\1", "1234", "1'234");
+  check (__LINE__, "\3\2\1", "12345", "12'345");
+  check (__LINE__, "\3\2\1", "123456", "1'23'456");
+  check (__LINE__, "\3\2\1", "1234567", "1'2'34'567");
+  check (__LINE__, "\3\2\1", "12345678", "1'2'3'45'678");
+  check (__LINE__, "\3\2\1", "123456789", "1'2'3'4'56'789");
+  check (__LINE__, "\3\2\1", "1234567890", "1'2'3'4'5'67'890");
+
+  check (__LINE__, "\2\3\1", "1", "1");
+  check (__LINE__, "\2\3\1", "12", "12");
+  check (__LINE__, "\2\3\1", "123", "1'23");
+  check (__LINE__, "\2\3\1", "1234", "12'34");
+  check (__LINE__, "\2\3\1", "12345", "123'45");
+  check (__LINE__, "\2\3\1", "123456", "1'234'56");
+  check (__LINE__, "\2\3\1", "1234567", "1'2'345'67");
+  check (__LINE__, "\2\3\1", "12345678", "1'2'3'456'78");
+  check (__LINE__, "\2\3\1", "123456789", "1'2'3'4'567'89");
+  check (__LINE__, "\2\3\1", "1234567890", "1'2'3'4'5'678'90");
+
+  /* No repeats.  */
+  check (__LINE__, "\3\377", "1", "1");
+  check (__LINE__, "\3\377", "12", "12");
+  check (__LINE__, "\3\377", "123", "123");
+  check (__LINE__, "\3\377", "1234", "1'234");
+  check (__LINE__, "\3\377", "12345", "12'345");
+  check (__LINE__, "\3\377", "123456", "123'456");
+  check (__LINE__, "\3\377", "1234567", "1234'567");
+  check (__LINE__, "\3\377", "12345678", "12345'678");
+
+  check (__LINE__, "\2\3\377", "1", "1");
+  check (__LINE__, "\2\3\377", "12", "12");
+  check (__LINE__, "\2\3\377", "123", "1'23");
+  check (__LINE__, "\2\3\377", "1234", "12'34");
+  check (__LINE__, "\2\3\377", "12345", "123'45");
+  check (__LINE__, "\2\3\377", "123456", "1'234'56");
+  check (__LINE__, "\2\3\377", "1234567", "12'345'67");
+  check (__LINE__, "\2\3\377", "12345678", "123'456'78");
+  check (__LINE__, "\2\3\377", "123456789", "1234'567'89");
+  check (__LINE__, "\2\3\377", "1234567890", "12345'678'90");
+
+  check (__LINE__, "\3\2\377", "1", "1");
+  check (__LINE__, "\3\2\377", "12", "12");
+  check (__LINE__, "\3\2\377", "123", "123");
+  check (__LINE__, "\3\2\377", "1234", "1'234");
+  check (__LINE__, "\3\2\377", "12345", "12'345");
+  check (__LINE__, "\3\2\377", "123456", "1'23'456");
+  check (__LINE__, "\3\2\377", "1234567", "12'34'567");
+  check (__LINE__, "\3\2\377", "12345678", "123'45'678");
+  check (__LINE__, "\3\2\377", "123456789", "1234'56'789");
+  check (__LINE__, "\3\2\377", "1234567890", "12345'67'890");
+
+  /* Locale-based tests.  */
+
+  locale_t loc;
+  struct lc_ctype_data *ctype;
+  struct grouping_iterator it;
+
+  loc = newlocale (LC_ALL_MASK, "de_DE.UTF-8", 0);
+  TEST_VERIFY_EXIT (loc != 0);
+  ctype = loc->__locales[LC_CTYPE]->private;
+  TEST_VERIFY (!ctype->outdigit_translation_needed);
+  for (int i = 0; i <= 9; ++i)
+    TEST_COMPARE (ctype->outdigit_bytes[i], 1);
+  TEST_COMPARE (ctype->outdigit_bytes_all_equal, 1);
+  TEST_COMPARE (__grouping_iterator_init (&it, LC_NUMERIC, loc, 8), true);
+  TEST_COMPARE (it.remaining_in_current_group, 2);
+  TEST_COMPARE (it.remaining, 8);
+  TEST_COMPARE (*it.groupings, 3);
+  TEST_COMPARE (it.non_repeating_groups, 3); /* Locale duplicates 3.  */
+  TEST_COMPARE (it.separators, 2);
+  TEST_COMPARE (__grouping_iterator_init (&it, LC_MONETARY, loc, 8), true);
+  TEST_COMPARE (it.remaining_in_current_group, 2);
+  TEST_COMPARE (it.remaining, 8);
+  TEST_COMPARE (*it.groupings, 3);
+  TEST_COMPARE (it.non_repeating_groups, 3); /* Locale duplicates 3.  */
+  TEST_COMPARE (it.separators, 2);
+  freelocale (loc);
+
+  loc = newlocale (LC_ALL_MASK, "tg_TJ.UTF-8", 0);
+  TEST_VERIFY_EXIT (loc != 0);
+  ctype = loc->__locales[LC_CTYPE]->private;
+  TEST_VERIFY (!ctype->outdigit_translation_needed);
+  for (int i = 0; i <= 9; ++i)
+    TEST_COMPARE (ctype->outdigit_bytes[i], 1);
+  TEST_COMPARE (ctype->outdigit_bytes_all_equal, 1);
+  TEST_COMPARE (__grouping_iterator_init (&it, LC_NUMERIC, loc, 8), true);
+  TEST_COMPARE (it.remaining_in_current_group, 2);
+  TEST_COMPARE (it.remaining, 8);
+  TEST_COMPARE (*it.groupings, 3);
+  TEST_COMPARE (it.non_repeating_groups, 3); /* Locale duplicates 3.  */
+  TEST_COMPARE (it.separators, 2);
+  TEST_COMPARE (__grouping_iterator_init (&it, LC_MONETARY, loc, 8), true);
+  TEST_COMPARE (it.remaining_in_current_group, 2);
+  TEST_COMPARE (it.remaining, 8);
+  TEST_COMPARE (*it.groupings, 3);
+  TEST_COMPARE (it.non_repeating_groups, 3); /* Locale duplicates 3.  */
+  TEST_COMPARE (it.separators, 2);
+  freelocale (loc);
+
+  loc = newlocale (LC_ALL_MASK, "hi_IN.UTF-8", 0);
+  TEST_VERIFY_EXIT (loc != 0);
+  ctype = loc->__locales[LC_CTYPE]->private;
+  TEST_VERIFY (ctype->outdigit_translation_needed);
+  for (int i = 0; i <= 9; ++i)
+    /* Locale uses Devanagari digits.  */
+    TEST_COMPARE (ctype->outdigit_bytes[i], 3);
+  TEST_COMPARE (ctype->outdigit_bytes_all_equal, 3);
+  TEST_COMPARE (__grouping_iterator_init (&it, LC_NUMERIC, loc, 8), true);
+  TEST_COMPARE (it.remaining_in_current_group, 2);
+  TEST_COMPARE (it.remaining, 8);
+  TEST_COMPARE (*it.groupings, 3);
+  TEST_COMPARE (it.non_repeating_groups, 0);
+  TEST_COMPARE (it.separators, 2);
+  TEST_COMPARE (__grouping_iterator_init (&it, LC_MONETARY, loc, 8), true);
+  TEST_COMPARE (it.remaining_in_current_group, 1);
+  TEST_COMPARE (it.remaining, 8);
+  TEST_COMPARE (*it.groupings, 2);
+  TEST_COMPARE (it.non_repeating_groups, 3);
+  TEST_COMPARE (it.separators, 3);
+  freelocale (loc);
+
+  loc = newlocale (LC_ALL_MASK, "ps_AF.UTF-8", 0);
+  TEST_VERIFY_EXIT (loc != 0);
+  ctype = loc->__locales[LC_CTYPE]->private;
+  TEST_VERIFY (ctype->outdigit_translation_needed);
+  for (int i = 0; i <= 9; ++i)
+    /* Locale uses non-ASCII digits.  */
+    TEST_COMPARE (ctype->outdigit_bytes[i], 2);
+  TEST_COMPARE (ctype->outdigit_bytes_all_equal, 2);
+  TEST_COMPARE (__grouping_iterator_init (&it, LC_NUMERIC, loc, 8), true);
+  TEST_COMPARE (it.remaining_in_current_group, 2);
+  TEST_COMPARE (it.remaining, 8);
+  TEST_COMPARE (*it.groupings, 3);
+  TEST_COMPARE (it.non_repeating_groups, 0);
+  TEST_COMPARE (it.separators, 2);
+  TEST_COMPARE (__grouping_iterator_init (&it, LC_MONETARY, loc, 8), true);
+  TEST_COMPARE (it.remaining_in_current_group, 2);
+  TEST_COMPARE (it.remaining, 8);
+  TEST_COMPARE (*it.groupings, 3);
+  TEST_COMPARE (it.non_repeating_groups, 0);
+  TEST_COMPARE (it.separators, 2);
+  freelocale (loc);
+
+  return 0;
+}
+
+#include <support/test-driver.c>
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