tests/util/utf8.c

   1 #include "clar_libgit2.h"
   2 #include "utf8.h"
   3
   4 void test_utf8__char_length(void)
   5 {
   6         cl_assert_equal_i(0, git_utf8_char_length("", 0));
   7         cl_assert_equal_i(1, git_utf8_char_length("$", 1));
   8         cl_assert_equal_i(5, git_utf8_char_length("abcde", 5));
   9         cl_assert_equal_i(1, git_utf8_char_length("\xc2\xa2", 2));
  10         cl_assert_equal_i(2, git_utf8_char_length("\x24\xc2\xa2", 3));
  11         cl_assert_equal_i(1, git_utf8_char_length("\xf0\x90\x8d\x88", 4));
  12
  13         /* uncontinued character counted as single characters */
  14         cl_assert_equal_i(2, git_utf8_char_length("\x24\xc2", 2));
  15         cl_assert_equal_i(3, git_utf8_char_length("\x24\xc2\xc2\xa2", 4));
  16
  17         /* invalid characters are counted as single characters */
  18         cl_assert_equal_i(4, git_utf8_char_length("\x24\xc0\xc0\x34", 4));
  19         cl_assert_equal_i(4, git_utf8_char_length("\x24\xf5\xfd\xc2", 4));
  20 }