LiXiaoqi/minmea
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fix gga char alignment problem in test.c

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In c compiler, a char takes 4 bytes in a structure though its size is 1 bytes. The initialization for `struct minmea_sentence_gga`:
```
    struct minmea_sentence_gga expected = {
        .time = { 12, 35, 19, 0 },
        .latitude = { 4807038, 1000 },
        .longitude = { 1131000, 1000 },
        .fix_quality = 1,
        .satellites_tracked = 8,
        .hdop = { 9, 10 },
        .altitude = { 5454, 10 },
        .altitude_units = 'M',
        .height = { 469, 10 },
        .height_units = 'M',
        .dgps_age = { 0, 0 },
    };
```
has the binary sequence like these:
```
0c 00 00 00 23 00 00 00 13 00 00 00 00 00 00 00 7e 59 49 00 e8 03 00 00 f8 41 11 00 e8 03 00 00 01 00 00 00 08  
00 00 00 09 00 00 00 0a 00 00 00 4e 15 00 00 0a 00 00 00 4d cc cc cc d5 01 00 00 0a 00 00 00 4d cc cc cc 00 00 
00 00 00 00 00 00
```
which the `4d cc cc cc` is the `'M'`, and cause memcmp return none zero. Therefore I add some code to remove `cc cc cc`:
```
memset(&expected.altitude_units + 1, 0, 3);
memset(&expected.height_units + 1, 0, 3);
```
This commit is contained in:
gdpinchina 2018-09-08 14:12:10 +08:00 committed by GitHub
parent 79b964a5b2
commit 59c3e0a813
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1 changed files with 4 additions and 2 deletions
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tests.c
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@ -508,7 +508,7 @@ START_TEST(test_minmea_parse_gga1)
{
const char *sentence = "$GPGGA,123519,4807.038,N,01131.000,E,1,08,0.9,545.4,M,46.9,M,,*47";
struct minmea_sentence_gga frame = {};
static const struct minmea_sentence_gga expected = {
struct minmea_sentence_gga expected = {
.time = { 12, 35, 19, 0 },
.latitude = { 4807038, 1000 },
.longitude = { 1131000, 1000 },
@ -519,11 +519,13 @@ START_TEST(test_minmea_parse_gga1)
.altitude_units = 'M',
.height = { 469, 10 },
.height_units = 'M',
.dgps_age = { 0, 10 },
.dgps_age = { 0, 0 },
};
ck_assert(minmea_check(sentence, false) == true);
ck_assert(minmea_check(sentence, true) == true);
ck_assert(minmea_parse_gga(&frame, sentence) == true);
memset(&expected.altitude_units + 1, 0, 3);
memset(&expected.height_units + 1, 0, 3);
ck_assert(!memcmp(&frame, &expected, sizeof(frame)));
}
END_TEST