general: add memmem and strstr tests

diff --git a/src/general/string_memmem.c b/src/general/string_memmem.c
new file mode 100644 (file)
index 0000000..d21164a
--- /dev/null
+++ b/src/general/string_memmem.c
@@ -0,0 +1,58 @@
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE 1
+#endif
+#include <string.h>
+#include "test.h"
+
+#define N(s, sub) { \
+       char *p = s; \
+       char *q = memmem(p, strlen(p), sub, strlen(sub)); \
+       if (q) \
+               error("memmem(%s,%s) returned str+%d, wanted 0\n", #s, #sub, q-p); \
+}
+
+#define T(s, sub, n) { \
+       char *p = s; \
+       char *q = memmem(p, strlen(p), sub, strlen(sub)); \
+       if (q == 0) \
+               error("memmem(%s,%s) returned 0, wanted str+%d\n", #s, #sub, n); \
+       else if (q - p != n) \
+               error("memmem(%s,%s) returned str+%d, wanted str+%d\n", #s, #sub, q-p, n); \
+}
+
+int main(void)
+{
+       N("", "a")
+       N("a", "aa")
+       N("a", "b")
+       N("aa", "ab")
+       N("aa", "aaa")
+       N("abba", "aba")
+       N("abc abc", "abcd")
+       N("0-1-2-3-4-5-6-7-8-9", "-3-4-56-7-8-")
+       N("0-1-2-3-4-5-6-7-8-9", "-3-4-5+6-7-8-")
+       N("_ _ _\xff_ _ _", "_\x7f_")
+       N("_ _ _\x7f_ _ _", "_\xff_")
+
+       T("", "", 0)
+       T("abcd", "", 0)
+       T("abcd", "a", 0)
+       T("abcd", "b", 1)
+       T("abcd", "c", 2)
+       T("abcd", "d", 3)
+       T("abcd", "ab", 0)
+       T("abcd", "bc", 1)
+       T("abcd", "cd", 2)
+       T("ababa", "baba", 1)
+       T("ababab", "babab", 1)
+       T("abababa", "bababa", 1)
+       T("abababab", "bababab", 1)
+       T("ababababa", "babababa", 1)
+       T("nanabanabanana", "aba", 3)
+       T("nanabanabanana", "ban", 4)
+       T("nanabanabanana", "anab", 1)
+       T("nanabanabanana", "banana", 8)
+       T("_ _\xff_ _", "_\xff_", 2)
+
+       return test_status;
+}

diff --git a/src/general/string_strstr.c b/src/general/string_strstr.c
new file mode 100644 (file)
index 0000000..2e3b352
--- /dev/null
+++ b/src/general/string_strstr.c
@@ -0,0 +1,55 @@
+#include <string.h>
+#include "test.h"
+
+#define N(s, sub) { \
+       char *p = s; \
+       char *q = strstr(p, sub); \
+       if (q) \
+               error("strstr(%s,%s) returned str+%d, wanted 0\n", #s, #sub, q-p); \
+}
+
+#define T(s, sub, n) { \
+       char *p = s; \
+       char *q = strstr(p, sub); \
+       if (q == 0) \
+               error("strstr(%s,%s) returned 0, wanted str+%d\n", #s, #sub, n); \
+       else if (q - p != n) \
+               error("strstr(%s,%s) returned str+%d, wanted str+%d\n", #s, #sub, q-p, n); \
+}
+
+int main(void)
+{
+       N("", "a")
+       N("a", "aa")
+       N("a", "b")
+       N("aa", "ab")
+       N("aa", "aaa")
+       N("abba", "aba")
+       N("abc abc", "abcd")
+       N("0-1-2-3-4-5-6-7-8-9", "-3-4-56-7-8-")
+       N("0-1-2-3-4-5-6-7-8-9", "-3-4-5+6-7-8-")
+       N("_ _ _\xff_ _ _", "_\x7f_")
+       N("_ _ _\x7f_ _ _", "_\xff_")
+
+       T("", "", 0)
+       T("abcd", "", 0)
+       T("abcd", "a", 0)
+       T("abcd", "b", 1)
+       T("abcd", "c", 2)
+       T("abcd", "d", 3)
+       T("abcd", "ab", 0)
+       T("abcd", "bc", 1)
+       T("abcd", "cd", 2)
+       T("ababa", "baba", 1)
+       T("ababab", "babab", 1)
+       T("abababa", "bababa", 1)
+       T("abababab", "bababab", 1)
+       T("ababababa", "babababa", 1)
+       T("nanabanabanana", "aba", 3)
+       T("nanabanabanana", "ban", 4)
+       T("nanabanabanana", "anab", 1)
+       T("nanabanabanana", "banana", 8)
+       T("_ _\xff_ _", "_\xff_", 2)
+
+       return test_status;
+}