thodg/libgit2/tests/core/utf8.c

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• Hash : cb136cdd
  Author :
  Date : 2021-04-14T22:22:11
  

  utf8: introduce git_utf8_char_length Introduce a function to determine the number of Unicode characters in a given UTF-8 string.

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• tests/core/utf8.c

• #include "clar_libgit2.h"
  
  void test_core_utf8__char_length(void)
  {
  	cl_assert_equal_i(0, git_utf8_char_length("", 0));
  	cl_assert_equal_i(1, git_utf8_char_length("$", 1));
  	cl_assert_equal_i(5, git_utf8_char_length("abcde", 5));
  	cl_assert_equal_i(1, git_utf8_char_length("\xc2\xa2", 2));
  	cl_assert_equal_i(2, git_utf8_char_length("\x24\xc2\xa2", 3));
  	cl_assert_equal_i(1, git_utf8_char_length("\xf0\x90\x8d\x88", 4));
  
  	/* uncontinued character counted as single characters */
  	cl_assert_equal_i(2, git_utf8_char_length("\x24\xc2", 2));
  	cl_assert_equal_i(3, git_utf8_char_length("\x24\xc2\xc2\xa2", 4));
  
  	/* invalid characters are counted as single characters */
  	cl_assert_equal_i(4, git_utf8_char_length("\x24\xc0\xc0\x34", 4));
  	cl_assert_equal_i(4, git_utf8_char_length("\x24\xf5\xfd\xc2", 4));
  }
  

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