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       1                 :             : #include "test_libmem_all.h"
       2                 :             : 
       3                 :             : /**
       4                 :             :  * @brief Truncate a string through direct buffer access using the cached length
       5                 :             :  *
       6                 :             :  * The descriptor is created as a string, modified via the writable pointer
       7                 :             :  * returned from m_data(...), and then finalized with a shorter length derived
       8                 :             :  * from the descriptor's own cached string_length. The terminator is written
       9                 :             :  * by the test before finalization, so the default flag is used
      10                 :             :  *
      11                 :             :  * @return Return describing success or failure
      12                 :             :  */
      13                 :           1 : Return test_libmem_0048(void)
      14                 :             : {
      15                 :           1 :         INITTEST;
      16                 :             : 
      17                 :             :         static const char drafting_text[] = "drafting";
      18                 :           1 :         m_create(char,title,MEMORY_STRING);
      19                 :             : 
      20                 :           1 :         ASSERT(SUCCESS == m_copy_fixed_string(title,sizeof(drafting_text),drafting_text));
      21                 :           1 :         ASSERT(title->string_length == 8);
      22                 :           1 :         ASSERT(title->is_string == true);
      23                 :             : 
      24                 :           1 :         char *title_view = m_data(char,title);
      25                 :           1 :         ASSERT(title_view != NULL);
      26                 :             : 
      27                 :           1 :         size_t title_length = 0U;
      28                 :           1 :         ASSERT(SUCCESS == m_string_length(title,&title_length));
      29                 :             : 
      30                 :           1 :         const size_t truncated_length = title_length - 3U;
      31                 :             : 
      32                 :           1 :         IF(title_view != NULL)
      33                 :             :         {
      34                 :           1 :                 title_view[truncated_length] = '\0';
      35                 :             :         }
      36                 :             : 
      37                 :           1 :         ASSERT(SUCCESS == m_finalize_string(title,truncated_length));
      38                 :           1 :         ASSERT(title->string_length == 5);
      39                 :           1 :         ASSERT(title->is_string == true);
      40                 :           1 :         ASSERT(0 == strcmp(m_text(title),"draft"));
      41                 :           1 :         call(m_del(title));
      42                 :             : 
      43                 :           1 :         RETURN_STATUS;
      44                 :             : }