Tests for module 'unicase/u8-casecmp'.

[gnulib.git] / tests / unicase / test-casecmp.h

diff --git a/tests/unicase/test-casecmp.h b/tests/unicase/test-casecmp.h
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+++ b/tests/unicase/test-casecmp.h
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+/* Test of case and normalization insensitive comparison of Unicode strings.
+   Copyright (C) 2009 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program 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 General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2009.  */
+
+static void
+test_ascii (int (*my_casecmp) (const UNIT *, size_t, const UNIT *, size_t, const char *, uninorm_t, int *),
+           uninorm_t nf)
+{
+  /* Empty string.  */
+  {
+    int cmp;
+
+    ASSERT (my_casecmp (NULL, 0, NULL, 0, NULL, nf, &cmp) == 0);
+    ASSERT (cmp == 0);
+  }
+  {
+    static const UNIT input[] = { 'x', 'y' };
+    int cmp;
+
+    ASSERT (my_casecmp (input, SIZEOF (input), NULL, 0, NULL, nf, &cmp) == 0);
+    ASSERT (cmp == 1);
+
+    ASSERT (my_casecmp (NULL, 0, input, SIZEOF (input), NULL, nf, &cmp) == 0);
+    ASSERT (cmp == -1);
+
+    ASSERT (my_casecmp (input, SIZEOF (input), input, SIZEOF (input), NULL, nf, &cmp) == 0);
+    ASSERT (cmp == 0);
+  }
+
+  /* Normal lexicographic order.  */
+  {
+    static const UNIT input1[] = { 'A', 'm', 'e', 'r', 'i', 'c', 'a' };
+    static const UNIT input2[] = { 'A', 'm', 'i', 'g', 'o' };
+    int cmp;
+
+    ASSERT (my_casecmp (input1, SIZEOF (input1), input2, SIZEOF (input2), NULL, nf, &cmp) == 0);
+    ASSERT (cmp == -1);
+
+    ASSERT (my_casecmp (input2, SIZEOF (input2), input1, SIZEOF (input1), NULL, nf, &cmp) == 0);
+    ASSERT (cmp == 1);
+  }
+
+  /* Shorter and longer strings.  */
+  {
+    static const UNIT input1[] = { 'R', 'e', 'a', 'g', 'a', 'n' };
+    static const UNIT input2[] = { 'R', 'e', 'a', 'g', 'a', 'n', 'o', 'm', 'i', 'c', 's' };
+    int cmp;
+
+    ASSERT (my_casecmp (input1, SIZEOF (input1), input2, SIZEOF (input2), NULL, nf, &cmp) == 0);
+    ASSERT (cmp == -1);
+
+    ASSERT (my_casecmp (input2, SIZEOF (input2), input1, SIZEOF (input1), NULL, nf, &cmp) == 0);
+    ASSERT (cmp == 1);
+  }
+}