tool/mbed/mbed-sdk/libraries/tests/utest/semihost_fs/semihost_fs.cpp

   1 #include "TestHarness.h"
   2 #include "mbed.h"
   3 #include "semihost_api.h"
   4 #include <stdio.h>
   5
   6 #define FILENAME      "/local/out.txt"
   7 #define TEST_STRING   "Hello World!"
   8
   9 TEST_GROUP(FirstTestGroup)
  10 {
  11
  12     FILE *test_open(const char *mode) {
  13         FILE *f = fopen(FILENAME, mode);
  14         return f;
  15     }
  16
  17     bool test_write(FILE *f, char *str, int str_len) {
  18         int n = fprintf(f, str);
  19         return (n == str_len) ? true : false;
  20     }
  21
  22     bool test_read(FILE *f, char *str, int str_len) {
  23         int n = fread(str, sizeof(unsigned char), str_len, f);
  24         return (n == str_len) ? true : false;
  25     }
  26
  27     bool test_close(FILE *f) {
  28         int rc = fclose(f);
  29         return rc ? true : false;
  30     }
  31
  32 };
  33
  34 TEST(FirstTestGroup, FirstTest)
  35 {
  36     CHECK_TEXT(semihost_connected(), "Semihost not connected")
  37
  38     LocalFileSystem local("local");
  39
  40     char *str = TEST_STRING;
  41     char *buffer = (char *)malloc(sizeof(unsigned char) * strlen(TEST_STRING));
  42     int str_len = strlen(TEST_STRING);
  43
  44     CHECK_TEXT(buffer != NULL, "Buffer allocation failed");
  45     CHECK_TEXT(str_len > 0, "Test string is empty (len <= 0)");
  46
  47     {
  48         // Perform write / read tests
  49         FILE *f = NULL;
  50         // Write
  51         f = test_open("w");
  52         CHECK_TEXT(f != NULL, "Error opening file for writing")
  53         CHECK_TEXT(test_write(f, str, str_len), "Error writing file");
  54         CHECK_TEXT(test_close(f) != EOF, "Error closing file after write");
  55
  56         // Read
  57         f = test_open("r");
  58         CHECK_TEXT(f != NULL, "Error opening file for reading")
  59         CHECK_TEXT(test_read(f, buffer, str_len), "Error reading file");
  60         CHECK_TEXT(test_close(f) != EOF, "Error closing file after read");
  61     }
  62     CHECK(strncmp(buffer, str, str_len) == 0);
  63 }