2025-04-29 Bruno Haible <bruno@clisp.org>
+ next-prime: Add tests.
+ * tests/test-next-prime.c: New file.
+ * modules/next-prime-tests: New file.
+
New module next-prime.
* lib/next-prime.h: New file, based on lib/hash.c.
* lib/next-prime.c: New file, based on lib/hash.c.
--- /dev/null
+/* Test of next_prime() function.
+ Copyright (C) 2025 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 <https://www.gnu.org/licenses/>. */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2025. */
+
+#include <config.h>
+
+/* Specification. */
+#include "next-prime.h"
+
+#include "macros.h"
+
+int
+main ()
+{
+ ASSERT (next_prime (1) == 11);
+ ASSERT (next_prime (3) == 11);
+ ASSERT (next_prime (7) == 11);
+ ASSERT (next_prime (10) == 11);
+ ASSERT (next_prime (11) == 11);
+ ASSERT (next_prime (12) == 13);
+ ASSERT (next_prime (640) == 641);
+
+ ASSERT (next_prime (9551) == 9551);
+ ASSERT (next_prime (9552) == 9587);
+
+ ASSERT (next_prime (43331) == 43331);
+ ASSERT (next_prime (43332) == 43391);
+
+ ASSERT (next_prime (1000000) == 1000003);
+
+ return test_exit_status;
+}