semihost_fs.cpp

00001 #include "TestHarness.h"
00002 #include "mbed.h"
00003 #include "mbed_semihost_api.h"
00004 #include <stdio.h>
00005 
00006 #define FILENAME      "/local/out.txt"
00007 #define TEST_STRING   "Hello World!"
00008 
00009 TEST_GROUP(FirstTestGroup)
00010 {
00011 
00012     FILE *test_open(const char *mode) {
00013         FILE *f = fopen(FILENAME, mode);
00014         return f;
00015     }
00016 
00017     bool test_write(FILE *f, char *str, int str_len) {
00018         int n = fprintf(f, str);
00019         return (n == str_len) ? true : false;
00020     }
00021 
00022     bool test_read(FILE *f, char *str, int str_len) {
00023         int n = fread(str, sizeof(unsigned char), str_len, f);
00024         return (n == str_len) ? true : false;
00025     }
00026 
00027     bool test_close(FILE *f) {
00028         int rc = fclose(f);
00029         return rc ? true : false;
00030     }
00031 
00032 };
00033 
00034 TEST(FirstTestGroup, FirstTest)
00035 {
00036     CHECK_TEXT(semihost_connected(), "Semihost not connected")
00037 
00038     LocalFileSystem local("local");
00039 
00040     char *str = TEST_STRING;
00041     char *buffer = (char *)malloc(sizeof(unsigned char) * strlen(TEST_STRING));
00042     int str_len = strlen(TEST_STRING);
00043 
00044     CHECK_TEXT(buffer != NULL, "Buffer allocation failed");
00045     CHECK_TEXT(str_len > 0, "Test string is empty (len <= 0)");
00046 
00047     {
00048         // Perform write / read tests
00049         FILE *f = NULL;
00050         // Write
00051         f = test_open("w");
00052         CHECK_TEXT(f != NULL, "Error opening file for writing")
00053         CHECK_TEXT(test_write(f, str, str_len), "Error writing file");
00054         CHECK_TEXT(test_close(f) != EOF, "Error closing file after write");
00055 
00056         // Read
00057         f = test_open("r");
00058         CHECK_TEXT(f != NULL, "Error opening file for reading")
00059         CHECK_TEXT(test_read(f, buffer, str_len), "Error reading file");
00060         CHECK_TEXT(test_close(f) != EOF, "Error closing file after read");
00061     }
00062     CHECK(strncmp(buffer, str, str_len) == 0);
00063 }