tests/test_core.c

   1 #include <obd2/obd2.h>
   2 #include <check.h>
   3 #include <stdint.h>
   4 #include <stdio.h>
   5 #include <stdbool.h>
   6
   7 extern void setup();
   8 extern bool last_response_was_received;
   9 extern DiagnosticResponse last_response_received;
  10 extern DiagnosticShims SHIMS;
  11 extern DiagnosticResponseReceived response_received_handler;
  12
  13 START_TEST (test_receive_wrong_arb_id)
  14 {
  15     DiagnosticRequest request = {
  16         arbitration_id: 0x7df,
  17         mode: OBD2_MODE_POWERTRAIN_DIAGNOSTIC_REQUEST
  18     };
  19     DiagnosticRequestHandle handle = diagnostic_request(&SHIMS, &request,
  20             response_received_handler);
  21
  22     fail_if(last_response_was_received);
  23     const uint8_t can_data[] = {0x2, request.mode + 0x40, 0x23};
  24     diagnostic_receive_can_frame(&handle, request.arbitration_id, can_data,
  25             sizeof(can_data));
  26     fail_if(last_response_was_received);
  27 }
  28 END_TEST
  29
  30 START_TEST (test_send_diag_request)
  31 {
  32     DiagnosticRequest request = {
  33         arbitration_id: 0x7df,
  34         mode: OBD2_MODE_POWERTRAIN_DIAGNOSTIC_REQUEST
  35     };
  36     DiagnosticRequestHandle handle = diagnostic_request(&SHIMS, &request,
  37             response_received_handler);
  38
  39     fail_if(last_response_was_received);
  40     const uint8_t can_data[] = {0x2, request.mode + 0x40, 0x23};
  41     diagnostic_receive_can_frame(&handle, request.arbitration_id + 0x8,
  42             can_data, sizeof(can_data));
  43     fail_unless(last_response_was_received);
  44     ck_assert(last_response_received.success);
  45     ck_assert_int_eq(last_response_received.arbitration_id,
  46             request.arbitration_id + 0x8);
  47     // TODO should we set it back to the original mode, or leave as mode + 0x40?
  48     ck_assert_int_eq(last_response_received.mode, request.mode);
  49     ck_assert_int_eq(last_response_received.pid, 0);
  50     ck_assert_int_eq(last_response_received.payload_length, 1);
  51     ck_assert_int_eq(last_response_received.payload[0], can_data[2]);
  52 }
  53 END_TEST
  54
  55 START_TEST (test_request_pid_standard)
  56 {
  57     DiagnosticRequestHandle handle = diagnostic_request_pid(&SHIMS,
  58             DIAGNOSTIC_STANDARD_PID, 0x2, response_received_handler);
  59
  60     fail_if(last_response_was_received);
  61     const uint8_t can_data[] = {0x3, 0x1 + 0x40, 0x2, 0x45};
  62     // TODO need a constant for the 7df broadcast functional request
  63     diagnostic_receive_can_frame(&handle, 0x7df + 0x8,
  64             can_data, sizeof(can_data));
  65     fail_unless(last_response_was_received);
  66     ck_assert(last_response_received.success);
  67     ck_assert_int_eq(last_response_received.arbitration_id,
  68             0x7df + 0x8);
  69     // TODO should we set it back to the original mode, or leave as mode + 0x40?
  70     ck_assert_int_eq(last_response_received.mode, 0x1);
  71     ck_assert_int_eq(last_response_received.pid, 0x2);
  72     ck_assert_int_eq(last_response_received.payload_length, 1);
  73     ck_assert_int_eq(last_response_received.payload[0], can_data[3]);
  74 }
  75 END_TEST
  76
  77 START_TEST (test_request_pid_enhanced)
  78 {
  79     DiagnosticRequestHandle handle = diagnostic_request_pid(&SHIMS,
  80             DIAGNOSTIC_ENHANCED_PID, 0x2, response_received_handler);
  81
  82     fail_if(last_response_was_received);
  83     const uint8_t can_data[] = {0x4, 0x1 + 0x40, 0x0, 0x2, 0x45};
  84     // TODO need a constant for the 7df broadcast functional request
  85     diagnostic_receive_can_frame(&handle, 0x7df + 0x8, can_data,
  86             sizeof(can_data));
  87     fail_unless(last_response_was_received);
  88     ck_assert(last_response_received.success);
  89     ck_assert_int_eq(last_response_received.arbitration_id,
  90             0x7df + 0x8);
  91     // TODO should we set it back to the original mode, or leave as mode + 0x40?
  92     ck_assert_int_eq(last_response_received.mode, 0x22);
  93     ck_assert_int_eq(last_response_received.pid, 0x2);
  94     ck_assert_int_eq(last_response_received.payload_length, 1);
  95     ck_assert_int_eq(last_response_received.payload[0], can_data[4]);
  96 }
  97 END_TEST
  98
  99 Suite* testSuite(void) {
 100     Suite* s = suite_create("obd2");
 101     TCase *tc_core = tcase_create("core");
 102     tcase_add_checked_fixture(tc_core, setup, NULL);
 103     tcase_add_test(tc_core, test_send_diag_request);
 104     tcase_add_test(tc_core, test_receive_wrong_arb_id);
 105     tcase_add_test(tc_core, test_request_pid_standard);
 106     tcase_add_test(tc_core, test_request_pid_enhanced);
 107
 108     // TODO these are future work:
 109     // TODO test request MIL
 110     // TODO test request VIN
 111     // TODO test request DTC
 112     // TODO test clear DTC
 113     // TODO test enumerate PIDs
 114     suite_add_tcase(s, tc_core);
 115
 116     return s;
 117 }
 118
 119 int main(void) {
 120     int numberFailed;
 121     Suite* s = testSuite();
 122     SRunner *sr = srunner_create(s);
 123     // Don't fork so we can actually use gdb
 124     srunner_set_fork_status(sr, CK_NOFORK);
 125     srunner_run_all(sr, CK_NORMAL);
 126     numberFailed = srunner_ntests_failed(sr);
 127     srunner_free(sr);
 128     return (numberFailed == 0) ? 0 : 1;
 129 }