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#include <glib.h>
#include <gio/gio.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include "../src/ctpl.h"
#include "ctpl-test-lib.h"
/*
* FIXME: support exponents in input/output values
*/
/*#define LOGFILE stdout*/
/* creates a string representing a "float" from two longs: m.n */
static gchar *
float_string (glong m,
glong d)
{
gchar *f;
gchar *p;
g_return_val_if_fail (d >= 0 || m == 0, NULL);
if (m == 0) {
if (d >= 0) {
f = g_strdup_printf ("0.%ld", d);
} else {
f = g_strdup_printf ("-0.%ld", -d);
}
} else {
f = g_strdup_printf ("%ld.%ld", m, d);
}
/* now strip extra 0's */
for (p = strchr (f, 0) - 1; p[0] == '0' && p[-1] != '.'; p--) {
p[0] = 0;
}
return f;
}
/* strips @sfx from the end of @s */
static void
rstripstr (gchar *s,
const gchar *sfx)
{
gsize s_len = strlen (s);
gsize sfx_len = strlen (sfx);
if (s_len > sfx_len) {
if (strcmp (&s[s_len - sfx_len], sfx) == 0) {
s[s_len - sfx_len] = 0;
}
}
}
/* actual test that check if the float represented by float_string(m, d) is
* output as the same string by CTPL */
static gboolean
test_float (glong m,
glong d)
{
gchar *ctpl_f;
gchar *real_f;
gboolean ret = FALSE;
gchar *env;
GError *err = NULL;
real_f = float_string (m, d);
env = g_strconcat ("float = ", real_f, ";", NULL);
ctpl_f = ctpltest_parse_string ("{float}", env, &err);
if (! ctpl_f) {
g_warning ("Failed to parse test template: %s", err->message);
g_error_free (err);
} else {
/* strip extra .0 if present */
rstripstr (real_f, ".0");
ret = strcmp (real_f, ctpl_f) == 0;
if (! ret) {
fprintf (stderr, "** %s expected, got %s\n", real_f, ctpl_f);
}
#ifdef LOGFILE
{
static glong n = 0;
if (n == 100000) {
fprintf (LOGFILE, "%s =\n%s\n", real_f, ctpl_f);
n = 0;
} else {
n++;
}
}
#endif
}
g_free (env);
g_free (ctpl_f);
g_free (real_f);
return ret;
}
/* test cases.
* try not to make checks take too much time if they get activated by default,
* so anyone can run this safely. */
#define PERCENT(max, n) \
(((max) == 0) ? (0.0) : (100.0 * (n) / (max)))
/* test many really small (-1.0, +1.0) values */
static int
test_1 (void)
{
glong m;
glong d;
int ret = 0;
#define M_MIN -1
#define M_MAX +1
#define M_STEP 1
#define D_MIN 0
#define D_MAX +10000000
#define D_STEP 1111
for (m = M_MIN; m < M_MAX; m += M_STEP) {
for (d = D_MIN; d < D_MAX; d += D_STEP) {
if (! test_float (m, d)) {
ret = 1;
}
}
}
return ret;
}
/* test on random values (but relatively small) */
static int
test_2 (void)
{
guint i;
guint n_success = 0;
for (i = 0; i < 100000; i++) {
if (test_float (g_random_int_range (-100000, 100000),
g_random_int_range (0, 999999999))) {
n_success ++;
}
}
g_debug ("%d/%d tests suceeded (%.2f%%)",
n_success, i, PERCENT (i, n_success));
return n_success == i ? 0 : 1;
}
int
main (void)
{
g_type_init ();
return (test_1 () +
test_2 ());
}
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