1 files changed, 79 insertions, 0 deletions
diff --git a/bootloader/midi/test/sysex_test.c b/bootloader/midi/test/sysex_test.c
new file mode 100644
index 0000000..73a1915
--- /dev/null
+++ b/bootloader/midi/test/sysex_test.c
@@ -0,0 +1,79 @@
+//midi for embedded chips,
+//Copyright 2010 Alex Norman
+//
+//This file is part of avr-midi.
+//
+//avr-midi is free software: you can redistribute it and/or modify
+//it under the terms of the GNU General Public License as published by
+//the Free Software Foundation, either version 3 of the License, or
+//(at your option) any later version.
+//
+//avr-midi is distributed in the hope that it will be useful,
+//but WITHOUT ANY WARRANTY; without even the implied warranty of
+//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//GNU General Public License for more details.
+//
+//You should have received a copy of the GNU General Public License
+//along with avr-midi.  If not, see <http://www.gnu.org/licenses/>.
+
+#include "sysex_tools.h"
+#include <stdlib.h>
+#include <math.h>
+#include <assert.h>
+#include <string.h>
+#include <stdio.h>
+
+#define SIZE 1028
+
+int main(int argc, char * argv[]) {
+   unsigned int i, j;
+   uint8_t orig[SIZE];
+   uint8_t unpacked[SIZE];
+   uint8_t * packed = malloc(sizeof(uint8_t) * sysex_bit_packed_length(SIZE));
+   uint8_t * packed2 = malloc(sizeof(uint8_t) * sysex_bit_packed_length(SIZE));
+
+   for(i = 0; i < SIZE; i++)
+      orig[i] = rand() & 0xFF;
+
+   for (i = 1; i < 512; i++) {
+      assert(i == sysex_bit_unpacked_length(sysex_bit_packed_length(i)));
+   }
+
+   //test byte packing
+   for (i = 1; i < SIZE; i++) {
+      uint16_t res_size0 = sysex_bit_pack(packed, orig, i);
+      uint16_t res_size1 = sysex_bit_packed_length(i);
+      //printf("packed %d == %d\n", res_size0, res_size1);
+      assert(res_size0 == res_size1);
+      //make sure that the top bit isn't set
+      for (j = 0; j < res_size0; j++)
+         assert( (packed[i] & 0x80) == 0);
+      //just in case, zero out unpacked..
+      memset(unpacked, SIZE, 0);
+      res_size1 = sysex_bit_unpack(unpacked, packed, res_size0);
+      assert(i == sysex_bit_unpacked_length(res_size0));
+      //printf("unpacked %d == %d\n", res_size1, i);
+      assert(res_size1 == i);
+      res_size0 = memcmp(orig, unpacked, i);
+      assert(0 == res_size0);
+   }
+
+   for (i = 0, j = 0; i < (SIZE - 7); i += 7, j +=8) {
+      //pack in segments
+      assert(8 == sysex_bit_pack(packed2 + j, orig + i, 7));
+   }
+
+   for (i = 0, j = 0; i < (SIZE - 7); i += 7, j +=8) {
+      //pack in segments
+      assert(7 == sysex_bit_unpack(unpacked + i, packed2 + j, 8));
+   }
+   //make sure the unpacked contents are the same length
+   assert(0 == memcmp(unpacked, orig, SIZE - 7));
+   //make sure that packing in 7 byte segments is the same as packing all at once
+   assert(0 == memcmp(packed2, packed, sysex_bit_packed_length(SIZE - 7)));
+
+   free(packed);
+
+   printf("\n%s passed!\n\n", argv[0]);
+   return 0;
+}