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authorRasmus Villemoes <linux@rasmusvillemoes.dk>2022-04-29 23:38:00 +0200
committerakpm <akpm@linux-foundation.org>2022-04-29 23:38:00 +0200
commite0fa2ab3fcff42b8c2ed906f5619aae896e1e5e1 (patch)
tree1e224f827ec406321979111217db7e5faafd0b92 /lib
parentlib/Kconfig.debug: remove more CONFIG_..._VALUE indirections (diff)
downloadlinux-e0fa2ab3fcff42b8c2ed906f5619aae896e1e5e1.tar.xz
linux-e0fa2ab3fcff42b8c2ed906f5619aae896e1e5e1.zip
lib/test_string.c: add strspn and strcspn tests
Before refactoring strspn() and strcspn(), add some simple test cases. Link: https://lkml.kernel.org/r/20220328224119.3003834-1-linux@rasmusvillemoes.dk Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Andy Shevchenko <andy@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'lib')
-rw-r--r--lib/test_string.c33
1 files changed, 33 insertions, 0 deletions
diff --git a/lib/test_string.c b/lib/test_string.c
index 9dfd6f52de92..c5cb92fb710e 100644
--- a/lib/test_string.c
+++ b/lib/test_string.c
@@ -179,6 +179,34 @@ static __init int strnchr_selftest(void)
return 0;
}
+static __init int strspn_selftest(void)
+{
+ static const struct strspn_test {
+ const char str[16];
+ const char accept[16];
+ const char reject[16];
+ unsigned a;
+ unsigned r;
+ } tests[] __initconst = {
+ { "foobar", "", "", 0, 6 },
+ { "abba", "abc", "ABBA", 4, 4 },
+ { "abba", "a", "b", 1, 1 },
+ { "", "abc", "abc", 0, 0},
+ };
+ const struct strspn_test *s = tests;
+ size_t i, res;
+
+ for (i = 0; i < ARRAY_SIZE(tests); ++i, ++s) {
+ res = strspn(s->str, s->accept);
+ if (res != s->a)
+ return 0x100 + 2*i;
+ res = strcspn(s->str, s->reject);
+ if (res != s->r)
+ return 0x100 + 2*i + 1;
+ }
+ return 0;
+}
+
static __exit void string_selftest_remove(void)
{
}
@@ -212,6 +240,11 @@ static __init int string_selftest_init(void)
if (subtest)
goto fail;
+ test = 6;
+ subtest = strspn_selftest();
+ if (subtest)
+ goto fail;
+
pr_info("String selftests succeeded\n");
return 0;
fail: