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/*
* Unit test for timespec's
*
*/
#include <stdlib.h>
#include <stdbool.h>
#include <stdlib.h>
#include <stdio.h>
#include <time.h> /* for time_t */
#include <math.h>
#include <unistd.h>
#include "compiler.h"
#include "revision.h"
#include "ppsthread.h"
#include "timespec.h"
#define TS_ZERO {0,0}
#define TS_ZERO_ONE {0,1}
#define TS_ZERO_TWO {0,2}
#define TS_ZERO_NINES {0,999999999}
#define TS_ONE {1,0}
#define TS_ONE_ONE {1,1}
#define TS_TWO {2,0}
#define TS_N_ZERO_ONE {0,-1}
#define TS_N_ZERO_TWO {0,-2}
#define TS_N_ZERO_NINES {0,-999999999}
#define TS_N_ONE {-1,0}
/* Dec 31, 23:59 2037 GMT */
#define TS_2037 {2145916799, 0}
#define TS_2037_ONE {2145916799, 1}
#define TS_2037_TWO {2145916799, 2}
#define TS_2037_X {2145916799, 123456789}
#define TS_2037_NINES {2145916799, 999999999}
struct subtract_test {
struct timespec a;
struct timespec b;
struct timespec c;
bool last;
};
struct subtract_test subtract_tests[] = {
{ TS_ZERO, TS_ZERO, TS_ZERO, 0},
{ TS_ONE, TS_ONE, TS_ZERO, 0},
{ TS_ZERO_ONE, TS_ZERO_ONE, TS_ZERO, 0},
{ TS_ONE_ONE, TS_ONE_ONE, TS_ZERO, 0},
{ TS_N_ONE, TS_N_ONE, TS_ZERO, 0},
{ TS_N_ZERO_ONE, TS_N_ZERO_ONE, TS_ZERO, 0},
{ TS_ZERO_NINES, TS_ZERO_NINES, TS_ZERO, 0},
{ TS_ZERO, TS_N_ONE, TS_ONE, 0},
{ TS_ONE, TS_ZERO, TS_ONE, 0},
{ TS_TWO, TS_ONE, TS_ONE, 0},
{ TS_ONE_ONE, TS_ONE, TS_ZERO_ONE, 0},
{ TS_ONE, TS_ZERO_NINES, TS_ZERO_ONE, 0},
{ TS_ZERO_TWO, TS_ZERO_ONE, TS_ZERO_ONE, 0},
{ TS_2037_ONE, TS_2037, TS_ZERO_ONE, 0},
{ TS_ONE_ONE, TS_ZERO_NINES, TS_ZERO_TWO, 0},
{ TS_2037_NINES, TS_2037, TS_ZERO_NINES, 0},
{ TS_ZERO, TS_ONE, TS_N_ONE, 0},
{ TS_ONE, TS_TWO, TS_N_ONE, 0},
{ TS_ZERO, TS_ZERO_ONE, TS_N_ZERO_ONE, 0},
{ TS_ONE, TS_ONE_ONE, TS_N_ZERO_ONE, 0},
{ TS_ZERO_ONE, TS_ZERO_TWO, TS_N_ZERO_ONE, 0},
{ TS_2037, TS_2037_ONE, TS_N_ZERO_ONE, 0},
{ TS_ZERO_NINES, TS_ONE_ONE, TS_N_ZERO_TWO, 0},
{ TS_2037, TS_2037_NINES, TS_N_ZERO_NINES, 1},
};
struct format_test {
struct timespec input;
char *expected;
bool last;
};
struct format_test format_tests[] = {
{ TS_ZERO, " 0.000000000", 0},
{ TS_ZERO_ONE, " 0.000000001", 0},
{ TS_ZERO_TWO, " 0.000000002", 0},
{ TS_ZERO_NINES, " 0.999999999", 0},
{ TS_ONE, " 1.000000000", 0},
{ TS_ONE_ONE, " 1.000000001", 0},
{ TS_TWO, " 2.000000000", 0},
{ TS_N_ZERO_ONE, "-0.000000001", 0},
{ TS_N_ZERO_TWO, "-0.000000002", 0},
{ TS_N_ZERO_NINES, "-0.999999999", 0},
{ TS_N_ONE, "-1.000000000", 0},
{ { -1, 1}, "-1.000000001", 0},
{ { -1, -1}, "-1.000000001", 0},
{ TS_2037, " 2145916799.000000000", 0},
{ TS_2037_ONE, " 2145916799.000000001", 0},
{ TS_2037_NINES, " 2145916799.999999999", 1},
};
static int test_subtract( int verbose )
{
struct subtract_test *p = subtract_tests;
int fail_count = 0;
while ( 1 ) {
char buf_a[TIMESPEC_LEN];
char buf_b[TIMESPEC_LEN];
char buf_c[TIMESPEC_LEN];
char buf_r[TIMESPEC_LEN];
struct timespec r;
TS_SUB(&r, &p->a, &p->b);
timespec_str( &p->a, buf_a, sizeof(buf_a) );
timespec_str( &p->b, buf_b, sizeof(buf_b) );
timespec_str( &p->c, buf_c, sizeof(buf_c) );
timespec_str( &r, buf_r, sizeof(buf_r) );
if ( (p->c.tv_sec != r.tv_sec) || (p->c.tv_nsec != r.tv_nsec) ) {
printf("%21s - %21s = %21s, FAIL s/b %21s\n",
buf_a, buf_b, buf_r, buf_c);
fail_count++;
} else if ( verbose ) {
printf("%21s - %21s = %21s\n", buf_a, buf_b, buf_r);
}
if ( p->last ) {
break;
}
p++;
};
if ( fail_count ) {
printf("subtract test failed %d tests\n", fail_count );
} else {
puts("subtract test succeeded\n");
}
return fail_count;
}
static int test_format(int verbose )
{
struct format_test *p = format_tests;
int fail_count = 0;
while ( 1 ) {
char buf[TIMESPEC_LEN];
int fail;
timespec_str( &p->input, buf, sizeof(buf) );
fail = strncmp( buf, p->expected, TIMESPEC_LEN);
if ( fail ) {
printf("%21s, FAIL s/b: %21s\n", buf, p->expected);
fail_count++;
} else if ( verbose ) {
printf("%21s\n", buf);
}
if ( p->last ) {
break;
}
p++;
};
if ( fail_count ) {
printf("timespec_str test failed %d tests\n", fail_count );
} else {
puts("timespec_str test succeeded\n");
}
return fail_count;
}
struct timespec exs[] = {
TS_ZERO_ONE,
TS_ZERO_TWO,
TS_ZERO_NINES,
TS_ONE,
TS_ONE_ONE,
TS_TWO,
TS_2037,
TS_2037_ONE,
TS_2037_TWO,
TS_2037_X,
TS_2037_NINES,
TS_ZERO,
};
static void ex_precision1( struct timespec a, struct timespec b)
{
char buf[TIMESPEC_LEN];
char buf1[TIMESPEC_LEN];
long l;
timespec_str( &a, buf, sizeof(buf) );
timespec_str( &b, buf1, sizeof(buf1) );
l = timespec_diff_ns( a, b);
printf( "%21s - %21s = %21ld\n", buf, buf1, l);
}
static void ex_precision(void)
{
int i;
float f;
double d;
char buf[TIMESPEC_LEN];
struct timespec *v = exs;
struct timespec v1 = TS_2037;
struct timespec v2 = TS_2037_X;
puts( "\nPrecision examples:\n\n Simple conversions\n");
printf( "\n%10stimespec%14sdouble%16sfloat\n\n", "", "", "");
while ( 1 ) {
d = TSTONS( v );
f = (float) d;
timespec_str( v, buf, sizeof(buf) );
printf( "%21s %21.9f %21.9f \n", buf, d, f);
if ( ( 0 == v->tv_sec ) && ( 0 == v->tv_nsec) ) {
/* done */
break;
}
v++;
}
printf( "\n\nSubtraction:\n");
printf( "\n\ntimespec_diff_ns( x, y) = z\n");
for ( i = 0 ; i < 6 ; i++ ) {
ex_precision1( v1, v2);
v1.tv_sec += 1000;
}
}
int main(int argc, char *argv[])
{
int fail_count = 0;
int verbose = 0;
int option;
while ((option = getopt(argc, argv, "h?vV")) != -1) {
switch (option) {
default:
fail_count = 1;
/* FALL THROUGH! */
case '?':
case 'h':
(void)fputs("usage: test_timespec [-v] [-V]\n", stderr);
exit(fail_count);
case 'V':
(void)fprintf( stderr, "test_timespec %s\n",
VERSION);
exit(EXIT_SUCCESS);
case 'v':
verbose = 1;
break;
}
}
fail_count = test_format( verbose );
fail_count += test_subtract( verbose );
if ( fail_count ) {
printf("timespec tests failed %d tests\n", fail_count );
exit(1);
}
printf("timespec tests succeeded\n");
if ( verbose ) {
ex_precision();
}
exit(0);
}
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