tests/core/memmem.c

   1 #include "clar_libgit2.h"
   2
   3 static void assert_found(const char *haystack, const char *needle, size_t expected_pos)
   4 {
   5         cl_assert_equal_p(git__memmem(haystack, haystack ? strlen(haystack) : 0,
   6                                       needle, needle ? strlen(needle) : 0),
   7                           haystack + expected_pos);
   8 }
   9
  10 static void assert_absent(const char *haystack, const char *needle)
  11 {
  12         cl_assert_equal_p(git__memmem(haystack, haystack ? strlen(haystack) : 0,
  13                                       needle, needle ? strlen(needle) : 0),
  14                           NULL);
  15 }
  16
  17 void test_core_memmem__found(void)
  18 {
  19         assert_found("a", "a", 0);
  20         assert_found("ab", "a", 0);
  21         assert_found("ba", "a", 1);
  22         assert_found("aa", "a", 0);
  23         assert_found("aab", "aa", 0);
  24         assert_found("baa", "aa", 1);
  25         assert_found("dabc", "abc", 1);
  26         assert_found("abababc", "abc", 4);
  27 }
  28
  29 void test_core_memmem__absent(void)
  30 {
  31         assert_absent("a", "b");
  32         assert_absent("a", "aa");
  33         assert_absent("ba", "ab");
  34         assert_absent("ba", "ab");
  35         assert_absent("abc", "abcd");
  36         assert_absent("abcabcabc", "bcac");
  37 }
  38
  39 void test_core_memmem__edgecases(void)
  40 {
  41         assert_absent(NULL, NULL);
  42         assert_absent("a", NULL);
  43         assert_absent(NULL, "a");
  44         assert_absent("", "a");
  45         assert_absent("a", "");
  46 }