Add openpilot tests

panda/tests/gmbitbang/test_packer.c

@@ -0,0 +1,28 @@
+#include <stdio.h>
+#include <stdint.h>
+
+#define CANPACKET_DATA_SIZE_MAX 8
+#include "../../board/can_definitions.h"
+
+#include "../../board/drivers/canbitbang.h"
+
+int main() {
+  char out[300];
+  CANPacket_t to_bang = {0};
+  to_bang.addr = 20 << 18;
+  to_bang.data_len_code = 1;
+  to_bang.data[0] = 1;
+
+  int len = get_bit_message(out, &to_bang);
+  printf("T:");
+  for (int i = 0; i < len; i++) {
+    printf("%d", out[i]);
+  }
+  printf("\n");
+  printf("R:0000010010100000100010000010011110111010100111111111111111");
+  printf("\n");
+  return 0;
+}
+
+
+