109 lines
2.7 KiB
C
109 lines
2.7 KiB
C
#include "tests_str.h"
|
|
#include "tests.h"
|
|
|
|
int test_str_to()
|
|
{
|
|
char buf[13];
|
|
fix16_to_str(fix16_from_dbl(1234.5678), buf, 4);
|
|
ASSERT_EQ_STR(buf, "1234.5678");
|
|
|
|
fix16_to_str(fix16_from_dbl(-1234.5678), buf, 4);
|
|
ASSERT_EQ_STR(buf, "-1234.5678");
|
|
|
|
fix16_to_str(0, buf, 0);
|
|
ASSERT_EQ_STR(buf, "0");
|
|
|
|
fix16_to_str(fix16_from_dbl(0.9), buf, 0);
|
|
ASSERT_EQ_STR(buf, "1");
|
|
|
|
fix16_to_str(1, buf, 5);
|
|
ASSERT_EQ_STR(buf, "0.00002");
|
|
|
|
fix16_to_str(-1, buf, 5);
|
|
ASSERT_EQ_STR(buf, "-0.00002");
|
|
|
|
fix16_to_str(65535, buf, 5);
|
|
ASSERT_EQ_STR(buf, "0.99998");
|
|
|
|
fix16_to_str(65535, buf, 4);
|
|
ASSERT_EQ_STR(buf, "1.0000");
|
|
|
|
fix16_to_str(fix16_maximum, buf, 5);
|
|
ASSERT_EQ_STR(buf, "32767.99998");
|
|
|
|
fix16_to_str(fix16_minimum, buf, 5);
|
|
ASSERT_EQ_STR(buf, "-32768.00000");
|
|
|
|
return 0;
|
|
}
|
|
|
|
int test_str_from()
|
|
{
|
|
ASSERT_EQ_INT(fix16_from_str("1234.5678"), fix16_from_dbl(1234.5678));
|
|
ASSERT_EQ_INT(fix16_from_str("-1234.5678"), fix16_from_dbl(-1234.5678));
|
|
ASSERT_EQ_INT(fix16_from_str(" +1234,56780 "),
|
|
fix16_from_dbl(1234.5678));
|
|
|
|
ASSERT_EQ_INT(fix16_from_str("0"), 0);
|
|
ASSERT_EQ_INT(fix16_from_str("1"), fix16_one);
|
|
ASSERT_EQ_INT(fix16_from_str("1.0"), fix16_one);
|
|
ASSERT_EQ_INT(fix16_from_str("1.0000000000"), fix16_one);
|
|
|
|
ASSERT_EQ_INT(fix16_from_str("0.00002"), 1);
|
|
ASSERT_EQ_INT(fix16_from_str("0.99998"), 65535);
|
|
|
|
ASSERT_EQ_INT(fix16_from_str("32767.99998"), fix16_maximum);
|
|
ASSERT_EQ_INT(fix16_from_str("-32768.00000"), fix16_minimum);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int test_str_extended()
|
|
{
|
|
|
|
fix16_t value = fix16_minimum;
|
|
char testbuf[13];
|
|
char goodbuf[13];
|
|
|
|
while (value < fix16_maximum)
|
|
{
|
|
double fvalue = fix16_to_dbl(value);
|
|
|
|
/* Turns out we have to jump through some hoops to round
|
|
doubles perfectly for printing:
|
|
http://stackoverflow.com/questions/994764/rounding-doubles-5-sprintf
|
|
*/
|
|
fvalue = round(fvalue * 100000.) / 100000.;
|
|
|
|
snprintf(goodbuf, 13, "%0.5f", fvalue);
|
|
fix16_to_str(value, testbuf, 5);
|
|
|
|
if (strcmp(goodbuf, testbuf) != 0)
|
|
{
|
|
printf("Value (fix16_t)%d gave %s, should be %s\n", value, testbuf,
|
|
goodbuf);
|
|
return 1;
|
|
}
|
|
|
|
fix16_t roundtrip = fix16_from_str(testbuf);
|
|
if (roundtrip != value)
|
|
{
|
|
printf("Roundtrip failed: (fix16_t)%d -> %s -> (fix16_t)%d\n",
|
|
value, testbuf, roundtrip);
|
|
return 1;
|
|
}
|
|
|
|
value += 0x10001;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int test_str()
|
|
{
|
|
TEST(test_str_to());
|
|
TEST(test_str_from());
|
|
TEST(test_str_extended());
|
|
return 0;
|
|
}
|