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add test_minmea_parse_vtg3 (fixes #57)

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This commit is contained in:
Kosma Moczek 2022-06-03 01:40:30 +02:00
parent c0d2f58128
commit a0da280f64
2 changed files with 32 additions and 7 deletions
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17
minmea.c
View File

@ -594,7 +594,7 @@ bool minmea_parse_vtg(struct minmea_sentence_vtg *frame, const char *sentence)
char type[6];
char c_true, c_magnetic, c_knots, c_kph, c_faa_mode;
if (!minmea_scan(sentence, "tfcfcfcfc;c",
if (!minmea_scan(sentence, "t;fcfcfcfcc",
type,
&frame->true_track_degrees,
&c_true,
@ -608,12 +608,15 @@ bool minmea_parse_vtg(struct minmea_sentence_vtg *frame, const char *sentence)
return false;
if (strcmp(type+2, "VTG"))
return false;
// check chars
if (c_true != 'T' ||
c_magnetic != 'M' ||
c_knots != 'N' ||
c_kph != 'K')
return false;
// values are only valid with the accompanying characters
if (c_true != 'T')
frame->true_track_degrees.scale = 0;
if (c_magnetic != 'M')
frame->magnetic_track_degrees.scale = 0;
if (c_knots != 'N')
frame->speed_knots.scale = 0;
if (c_kph != 'K')
frame->speed_kph.scale = 0;
frame->faa_mode = (enum minmea_faa_mode)c_faa_mode;
return true;

22
tests.c
View File

@ -895,6 +895,27 @@ START_TEST(test_minmea_parse_vtg2)
}
END_TEST
START_TEST(test_minmea_parse_vtg3)
{
// https://github.com/kosma/minmea/issues/57
const char *sentence = "$GNVTG,,,,,,,,,N*2E";
// clear structs before initialization to enable use of memcmp()
struct minmea_sentence_vtg frame = {};
struct minmea_sentence_vtg expected = {};
expected = (struct minmea_sentence_vtg){
.true_track_degrees = { 0, 0 },
.magnetic_track_degrees = { 0, 0 },
.speed_knots = { 0, 0 },
.speed_kph = { 0, 0 },
.faa_mode = MINMEA_FAA_MODE_NOT_VALID,
};
ck_assert(minmea_check(sentence, false) == true);
ck_assert(minmea_check(sentence, true) == true);
ck_assert(minmea_parse_vtg(&frame, sentence) == true);
ck_assert(!memcmp(&frame, &expected, sizeof(frame)));
}
END_TEST
START_TEST(test_minmea_parse_zda1)
{
const char *sentence = "$GPZDA,160012.71,11,03,2004,-1,00*7D";
@ -1133,6 +1154,7 @@ static Suite *minmea_suite(void)
tcase_add_test(tc_parse, test_minmea_parse_gsv5);
tcase_add_test(tc_parse, test_minmea_parse_vtg1);
tcase_add_test(tc_parse, test_minmea_parse_vtg2);
tcase_add_test(tc_parse, test_minmea_parse_vtg3);
tcase_add_test(tc_parse, test_minmea_parse_zda1);
suite_add_tcase(s, tc_parse);