/*
	file automatically generated by make_test_files.pl
	Fri Jul  3 11:37:50 2026
*/

/*****************************************************************************
 *                                                                           *
 *          UNU.RAN -- Universal Non-Uniform Random number generator         *
 *                                                                           *
 *****************************************************************************/
    
/**
 ** Tests for CEXT
 **/
    
/*---------------------------------------------------------------------------*/
#include "testunuran.h"

#ifdef UNUR_URNG_DEFAULT_RNGSTREAM
#include <RngStream.h>
#endif
/*---------------------------------------------------------------------------*/

/*---------------------------------------------------------------------------*/
/* global variables                                                          */

static FILE *TESTLOG;               /* test log file                         */
static FILE *UNURANLOG;             /* unuran log file                       */

static int test_ok = TRUE;          /* all tests ok (boolean)                */
static int fullcheck = FALSE;       /* whether all checks are performed      */ 

static TIMER watch;                 /* stop watch                            */

/*---------------------------------------------------------------------------*/

void run_verify_generator( FILE *LOG, int line, UNUR_PAR *par );

int unur_cext_set_verify( UNUR_PAR *par, int verify);


/*---------------------------------------------------------------------------*/

void test_new (void);
void test_set (void);
void test_get (void);
void test_chg (void);
void test_init (void);
void test_reinit (void);
void test_sample (void);
void test_validate (void);
void test_special(void);

/*---------------------------------------------------------------------------*/



/* prototypes */

int check_init(UNUR_GEN *gen);
double check_sample(UNUR_GEN *gen);

double exp1_sample(UNUR_GEN *gen);

double expa_sample(UNUR_GEN *gen);

int expb_init(UNUR_GEN *gen);
double expb_sample(UNUR_GEN *gen);

#define COMPARE_SAMPLE_SIZE  (500)
#define VIOLATE_SAMPLE_SIZE  (20)

/* #define SEED   (298346) */





/*---------------------------------------------------------------------------*/

#ifndef CHI2_FAILURES_TOLERATED
#  define CHI2_FAILURES_TOLERATED DEFAULT_CHI2_FAILURES_TOLERATED
#endif

/*---------------------------------------------------------------------------*/
/* [verbatim] */



int check_init(UNUR_GEN *gen ATTRIBUTE__UNUSED) { return UNUR_SUCCESS; }
double check_sample(UNUR_GEN *gen ATTRIBUTE__UNUSED) { return 0.; }

/* ............. */

double exp1_sample(UNUR_GEN *gen) { 
	double U = unur_sample_urng(gen);
	return (-log(1. - U));
}

/* ............. */

double expa_sample(UNUR_GEN *gen) { 
#	define sigma (params[0])     /* scale */
	double U = unur_sample_urng(gen);
	double X = -log(1. - U);
	double *params = unur_cext_get_distrparams(gen);
	if (params) 
		return sigma * X;
	else
		return X;
#	undef sigma
}

/* ............. */

int expb_init(UNUR_GEN *gen) { 
#	define sigma (params[0])     /* scale */
	double *params = unur_cext_get_distrparams(gen);
	double *genpar = unur_cext_get_params(gen, sizeof(double));
	genpar[0] = (params) ? sigma : 1.;
	return UNUR_SUCCESS;
#	undef sigma
}

double expb_sample(UNUR_GEN *gen) { 
#	define sigma (params[0])     /* scale */
	double U = unur_sample_urng(gen);
	double X = -log(1. - U);
	double *params = unur_cext_get_params(gen,(size_t)0);
	return sigma * X;
#	undef sigma
}

/*---------------------------------------------------------------------------*/
/* [new] */

void test_new (void)
{
        int n_tests_failed;          /* number of failed tests */

	/* start test */
	printf("[new "); fflush(stdout);
	fprintf(TESTLOG,"\n[new]\n");

	/* reset counter */
	n_tests_failed = 0;

	/* set stop watch */
	stopwatch_lap(&watch);
  
{ /* invalid distribution type */
UNUR_DISTR *distr = NULL;
   distr = unur_distr_discr_new(); 


unur_reset_errno();
n_tests_failed += (check_expected_NULL(TESTLOG,38,(unur_cext_new( distr )))==UNUR_SUCCESS)?0:1;
n_tests_failed += (check_errorcode(TESTLOG,38,UNUR_ERR_DISTR_INVALID)==UNUR_SUCCESS)?0:1;
unur_distr_free(distr);
}


	/* timing */
	stopwatch_print(TESTLOG,"\n<*>time = %.3f ms\n\n", stopwatch_lap(&watch));

	/* test finished */
	test_ok &= (n_tests_failed) ? 0 : 1;
	(n_tests_failed) ? printf(" ==> failed] ") : printf(" ==> ok] ");

} /* end of test_new() */

/*---------------------------------------------------------------------------*/
/* [set] */

void test_set (void)
{
        int n_tests_failed;          /* number of failed tests */

	/* start test */
	printf("[set "); fflush(stdout);
	fprintf(TESTLOG,"\n[set]\n");

	/* reset counter */
	n_tests_failed = 0;

	/* set stop watch */
	stopwatch_lap(&watch);
  
{ /* invalid NULL ptr */
UNUR_PAR   *par = NULL;
   par = NULL; 


unur_reset_errno();
n_tests_failed += (check_expected_setfailed(TESTLOG,49,(unur_cext_set_init(par,NULL)))==UNUR_SUCCESS)?0:1;
n_tests_failed += (check_errorcode(TESTLOG,49,UNUR_ERR_NULL)==UNUR_SUCCESS)?0:1;

unur_reset_errno();
n_tests_failed += (check_expected_setfailed(TESTLOG,52,(unur_cext_set_sample(par,NULL)))==UNUR_SUCCESS)?0:1;
n_tests_failed += (check_errorcode(TESTLOG,52,UNUR_ERR_NULL)==UNUR_SUCCESS)?0:1;
}

{ /* invalid parameter object */
UNUR_DISTR *distr = NULL;
UNUR_PAR   *par = NULL;
   distr = unur_distr_normal(NULL,0);
   par = unur_arou_new(distr); 


unur_reset_errno();
n_tests_failed += (check_expected_setfailed(TESTLOG,60,(unur_cext_set_init(par,NULL)))==UNUR_SUCCESS)?0:1;
n_tests_failed += (check_errorcode(TESTLOG,60,UNUR_ERR_PAR_INVALID)==UNUR_SUCCESS)?0:1;

unur_reset_errno();
n_tests_failed += (check_expected_setfailed(TESTLOG,63,(unur_cext_set_sample(par,NULL)))==UNUR_SUCCESS)?0:1;
n_tests_failed += (check_errorcode(TESTLOG,63,UNUR_ERR_NULL)==UNUR_SUCCESS)?0:1;

unur_reset_errno();
n_tests_failed += (check_expected_setfailed(TESTLOG,66,(unur_cext_set_sample(par,check_sample)))==UNUR_SUCCESS)?0:1;
n_tests_failed += (check_errorcode(TESTLOG,66,UNUR_ERR_PAR_INVALID)==UNUR_SUCCESS)?0:1;
unur_par_free(par);
unur_distr_free(distr);
}


	/* timing */
	stopwatch_print(TESTLOG,"\n<*>time = %.3f ms\n\n", stopwatch_lap(&watch));

	/* test finished */
	test_ok &= (n_tests_failed) ? 0 : 1;
	(n_tests_failed) ? printf(" ==> failed] ") : printf(" ==> ok] ");

} /* end of test_set() */

/*---------------------------------------------------------------------------*/
/* [get] */

void test_get (void)
{
        int n_tests_failed;          /* number of failed tests */

	/* start test */
	printf("[get "); fflush(stdout);
	fprintf(TESTLOG,"\n[get]\n");

	/* reset counter */
	n_tests_failed = 0;

	/* set stop watch */
	stopwatch_lap(&watch);
  
{ /* invalid NULL ptr */
UNUR_GEN   *gen = NULL;
   gen = NULL; 


unur_reset_errno();
n_tests_failed += (check_expected_NULL(TESTLOG,79,(unur_cext_get_params(gen,(size_t)0)))==UNUR_SUCCESS)?0:1;
n_tests_failed += (check_errorcode(TESTLOG,79,UNUR_ERR_NULL)==UNUR_SUCCESS)?0:1;
unur_free(gen);
}


	/* timing */
	stopwatch_print(TESTLOG,"\n<*>time = %.3f ms\n\n", stopwatch_lap(&watch));

	/* test finished */
	test_ok &= (n_tests_failed) ? 0 : 1;
	(n_tests_failed) ? printf(" ==> failed] ") : printf(" ==> ok] ");

} /* end of test_get() */

/*---------------------------------------------------------------------------*/
/* [init] */

void test_init (void)
{
        int n_tests_failed;          /* number of failed tests */

	/* start test */
	printf("[init "); fflush(stdout);
	fprintf(TESTLOG,"\n[init]\n");

	/* reset counter */
	n_tests_failed = 0;

	/* set stop watch */
	stopwatch_lap(&watch);
  
{ /* invalid NULL ptr */
UNUR_PAR   *par = NULL;
   par = NULL; 


unur_reset_errno();
n_tests_failed += (check_expected_NULL(TESTLOG,93,(unur_init( par )))==UNUR_SUCCESS)?0:1;
n_tests_failed += (check_errorcode(TESTLOG,93,UNUR_ERR_NULL)==UNUR_SUCCESS)?0:1;
}


	/* timing */
	stopwatch_print(TESTLOG,"\n<*>time = %.3f ms\n\n", stopwatch_lap(&watch));

	/* test finished */
	test_ok &= (n_tests_failed) ? 0 : 1;
	(n_tests_failed) ? printf(" ==> failed] ") : printf(" ==> ok] ");

} /* end of test_init() */

/*---------------------------------------------------------------------------*/
/* [reinit] */

void test_reinit (void)
{
        int n_tests_failed;          /* number of failed tests */

	/* start test */
	printf("[reinit "); fflush(stdout);
	fprintf(TESTLOG,"\n[reinit]\n");

	/* reset counter */
	n_tests_failed = 0;

	/* set stop watch */
	stopwatch_lap(&watch);
  
{ /* does not exist */
UNUR_DISTR *distr = NULL;
UNUR_PAR   *par = NULL;
UNUR_GEN   *gen = NULL;
   distr = unur_distr_exponential(NULL,0);
   par = unur_cext_new(distr);
   unur_cext_set_sample(par,exp1_sample);
   gen = unur_init(par); 
abort_if_NULL(TESTLOG, 103,    gen );


unur_reset_errno();
n_tests_failed += (check_expected_reinit(TESTLOG,107,(unur_reinit( gen )))==UNUR_SUCCESS)?0:1;
unur_distr_free(distr);
unur_free(gen);
}


	/* timing */
	stopwatch_print(TESTLOG,"\n<*>time = %.3f ms\n\n", stopwatch_lap(&watch));

	/* test finished */
	test_ok &= (n_tests_failed) ? 0 : 1;
	(n_tests_failed) ? printf(" ==> failed] ") : printf(" ==> ok] ");

} /* end of test_reinit() */

/*---------------------------------------------------------------------------*/
/* [sample] */

void test_sample (void)
{
        int n_tests_failed;          /* number of failed tests */

	/* start test */
	printf("[sample "); fflush(stdout);
	fprintf(TESTLOG,"\n[sample]\n");

	/* reset counter */
	n_tests_failed = 0;

	/* set stop watch */
	stopwatch_lap(&watch);
  
{ /* compare clone */
UNUR_DISTR *distr = NULL;
UNUR_PAR   *par = NULL;
UNUR_GEN   *gen = NULL;
   UNUR_GEN *clone;
   distr = unur_distr_exponential(NULL,0);
   par = NULL;
   gen = NULL; 


unur_reset_errno();
/* external generator 1 */
par = unur_cext_new(distr);
unur_cext_set_sample(par,exp1_sample);
gen = unur_init(par);
n_tests_failed += (compare_sequence_gen_start(TESTLOG,124,gen,COMPARE_SAMPLE_SIZE)==UNUR_SUCCESS)?0:1;

unur_reset_errno();
/* clone */
clone = unur_gen_clone(gen);
unur_free(gen);
gen = clone;
n_tests_failed += (compare_sequence_gen(TESTLOG,130,gen,COMPARE_SAMPLE_SIZE)==UNUR_SUCCESS)?0:1;

unur_reset_errno();
/* cstd */
unur_free(gen);
par = unur_cstd_new(distr);
gen = unur_init(par);
n_tests_failed += (compare_sequence_gen(TESTLOG,136,gen,COMPARE_SAMPLE_SIZE)==UNUR_SUCCESS)?0:1;

unur_reset_errno();
/* external generator A */
unur_free(gen);
par = unur_cext_new(distr);
unur_cext_set_sample(par,expa_sample);
gen = unur_init(par);
n_tests_failed += (compare_sequence_gen(TESTLOG,144,gen,COMPARE_SAMPLE_SIZE)==UNUR_SUCCESS)?0:1;

unur_reset_errno();
/* clone */
clone = unur_gen_clone(gen);
unur_free(gen);
gen = clone;
n_tests_failed += (compare_sequence_gen(TESTLOG,150,gen,COMPARE_SAMPLE_SIZE)==UNUR_SUCCESS)?0:1;

unur_reset_errno();
/* external generator B */
unur_free(gen);
par = unur_cext_new(distr);
unur_cext_set_init(par,expb_init);
unur_cext_set_sample(par,expb_sample);
gen = unur_init(par);
n_tests_failed += (compare_sequence_gen(TESTLOG,158,gen,COMPARE_SAMPLE_SIZE)==UNUR_SUCCESS)?0:1;

unur_reset_errno();
/* clone */
clone = unur_gen_clone(gen);
unur_free(gen);
gen = clone;
n_tests_failed += (compare_sequence_gen(TESTLOG,164,gen,COMPARE_SAMPLE_SIZE)==UNUR_SUCCESS)?0:1;
unur_distr_free(distr);
unur_free(gen);
}

{ /* compare clone */
UNUR_DISTR *distr = NULL;
UNUR_PAR   *par = NULL;
UNUR_GEN   *gen = NULL;
   UNUR_GEN *clone;
   double fpar[1] = { 1. };
   distr = unur_distr_exponential(fpar,1);
   par = NULL;
   gen = NULL; 


unur_reset_errno();
/* external generator 1 */
par = unur_cext_new(distr);
unur_cext_set_sample(par,exp1_sample);
gen = unur_init(par);
n_tests_failed += (compare_sequence_gen_start(TESTLOG,179,gen,COMPARE_SAMPLE_SIZE)==UNUR_SUCCESS)?0:1;

unur_reset_errno();
/* clone */
clone = unur_gen_clone(gen);
unur_free(gen);
gen = clone;
n_tests_failed += (compare_sequence_gen(TESTLOG,185,gen,COMPARE_SAMPLE_SIZE)==UNUR_SUCCESS)?0:1;

unur_reset_errno();
/* cstd */
unur_free(gen);
par = unur_cstd_new(distr);
gen = unur_init(par);
n_tests_failed += (compare_sequence_gen(TESTLOG,191,gen,COMPARE_SAMPLE_SIZE)==UNUR_SUCCESS)?0:1;

unur_reset_errno();
/* external generator A */
unur_free(gen);
par = unur_cext_new(distr);
unur_cext_set_sample(par,expa_sample);
gen = unur_init(par);
n_tests_failed += (compare_sequence_gen(TESTLOG,198,gen,COMPARE_SAMPLE_SIZE)==UNUR_SUCCESS)?0:1;

unur_reset_errno();
/* clone */
clone = unur_gen_clone(gen);
unur_free(gen);
gen = clone;
n_tests_failed += (compare_sequence_gen(TESTLOG,204,gen,COMPARE_SAMPLE_SIZE)==UNUR_SUCCESS)?0:1;

unur_reset_errno();
/* external generator B */
unur_free(gen);
par = unur_cext_new(distr);
unur_cext_set_init(par,expb_init);
unur_cext_set_sample(par,expb_sample);
gen = unur_init(par);
n_tests_failed += (compare_sequence_gen(TESTLOG,212,gen,COMPARE_SAMPLE_SIZE)==UNUR_SUCCESS)?0:1;

unur_reset_errno();
/* clone */
clone = unur_gen_clone(gen);
unur_free(gen);
gen = clone;
n_tests_failed += (compare_sequence_gen(TESTLOG,218,gen,COMPARE_SAMPLE_SIZE)==UNUR_SUCCESS)?0:1;
unur_distr_free(distr);
unur_free(gen);
}

{ /* compare clone */
UNUR_DISTR *distr = NULL;
UNUR_PAR   *par = NULL;
UNUR_GEN   *gen = NULL;
   UNUR_GEN *clone;
   double fpar[1] = { 5. };
   distr = unur_distr_exponential(fpar,1);
   par = NULL;
   gen = NULL; 


unur_reset_errno();
/* external generator A */
unur_free(gen);
par = unur_cext_new(distr);
unur_cext_set_sample(par,expa_sample);
gen = unur_init(par);
n_tests_failed += (compare_sequence_gen_start(TESTLOG,234,gen,COMPARE_SAMPLE_SIZE)==UNUR_SUCCESS)?0:1;

unur_reset_errno();
/* clone */
clone = unur_gen_clone(gen);
unur_free(gen);
gen = clone;
n_tests_failed += (compare_sequence_gen(TESTLOG,240,gen,COMPARE_SAMPLE_SIZE)==UNUR_SUCCESS)?0:1;

unur_reset_errno();
/* external generator B */
unur_free(gen);
par = unur_cext_new(distr);
unur_cext_set_init(par,expb_init);
unur_cext_set_sample(par,expb_sample);
gen = unur_init(par);
n_tests_failed += (compare_sequence_gen(TESTLOG,248,gen,COMPARE_SAMPLE_SIZE)==UNUR_SUCCESS)?0:1;

unur_reset_errno();
/* clone */
clone = unur_gen_clone(gen);
unur_free(gen);
gen = clone;
n_tests_failed += (compare_sequence_gen(TESTLOG,254,gen,COMPARE_SAMPLE_SIZE)==UNUR_SUCCESS)?0:1;

unur_reset_errno();
/* cstd */
unur_free(gen);
par = unur_cstd_new(distr);
gen = unur_init(par);
n_tests_failed += (compare_sequence_gen(TESTLOG,260,gen,COMPARE_SAMPLE_SIZE)==UNUR_SUCCESS)?0:1;
unur_distr_free(distr);
unur_free(gen);
}


	/* timing */
	stopwatch_print(TESTLOG,"\n<*>time = %.3f ms\n\n", stopwatch_lap(&watch));

	/* test finished */
	test_ok &= (n_tests_failed) ? 0 : 1;
	(n_tests_failed) ? printf(" ==> failed] ") : printf(" ==> ok] ");

} /* end of test_sample() */

/*---------------------------------------------------------------------------*/
/* [validate] */

/*---------------------------------------------------------------------------*/

/* [validate] */

void test_validate (void)
{
	/* suppress GCC compiler warning */
GCC_DIAG_OFF(unused-variable)

	UNUR_DISTR *distr[3];
	UNUR_PAR *par;
	UNUR_GEN *gen;
	double *darray;
	double fpm[10];
	int n_tests_failed;
	int rcode;

	/* start test */
	printf("[validate "); fflush(stdout);
	fprintf(TESTLOG,"\n[validate]\n");

	/* reset counter */
	n_tests_failed = 0;

	/* set stop watch */
	stopwatch_lap(&watch);


/* distributions: 3 */
{
distr[0] = unur_distr_exponential(NULL,0);
}

{
fpm[0] = 5.;
distr[1] = unur_distr_exponential(fpm,1);
}

{
fpm[0] = 1.;
distr[2] = unur_distr_exponential(fpm,1);
}

	/* timing */
	stopwatch_print(TESTLOG,"\n<*>setup time = %.3f ms\n", stopwatch_lap(&watch));

	printf("\n(chi^2) "); fflush(stdout);

/* chi^2 tests: 12 */

	unur_set_default_debug(~UNUR_DEBUG_SAMPLE);
	fprintf( TESTLOG,"\nChi^2 Test:\n");

/* distribution [0] */

	if(TRUE) {
	unur_reset_errno();
	do {
	UNUR_DISTR *distr_localcopy = unur_distr_clone(distr[0]);
par = unur_cext_new(distr_localcopy);
unur_cext_set_sample(par,exp1_sample);
	gen = unur_init(par);
	rcode = run_validate_chi2(TESTLOG,0,gen,distr[0],'+');
	n_tests_failed += (rcode==UNUR_SUCCESS)?0:1;
	n_tests_failed += (rcode==UNUR_FAILURE)?1000:0;
	unur_free(gen);
	unur_distr_free(distr_localcopy);
	} while (0);
	}

	if(TRUE) {
	unur_reset_errno();
	do {
	UNUR_DISTR *distr_localcopy = unur_distr_clone(distr[0]);
par = unur_cext_new(distr_localcopy);
unur_cext_set_sample(par,expa_sample);
	gen = unur_init(par);
	rcode = run_validate_chi2(TESTLOG,0,gen,distr[0],'+');
	n_tests_failed += (rcode==UNUR_SUCCESS)?0:1;
	n_tests_failed += (rcode==UNUR_FAILURE)?1000:0;
	unur_free(gen);
	unur_distr_free(distr_localcopy);
	} while (0);
	}

	if(TRUE) {
	unur_reset_errno();
	do {
	UNUR_DISTR *distr_localcopy = unur_distr_clone(distr[0]);
par = unur_cext_new(distr_localcopy);
unur_cext_set_init(par,expb_init);
unur_cext_set_sample(par,expb_sample);
	gen = unur_init(par);
	rcode = run_validate_chi2(TESTLOG,0,gen,distr[0],'+');
	n_tests_failed += (rcode==UNUR_SUCCESS)?0:1;
	n_tests_failed += (rcode==UNUR_FAILURE)?1000:0;
	unur_free(gen);
	unur_distr_free(distr_localcopy);
	} while (0);
	}

	if(TRUE) {
	unur_reset_errno();
	do {
	UNUR_DISTR *distr_localcopy = unur_distr_clone(distr[0]);
{ UNUR_DISTR *dg =NULL;
par = unur_cext_new(distr_localcopy);
unur_cext_set_init(par,expb_init);
unur_cext_set_sample(par,expb_sample);
fpm[0] = 2.;
	gen = unur_init(par);
	if (gen) {
dg = unur_get_distr(gen);
unur_distr_cont_set_pdfparams(dg,fpm,1);
unur_reinit(gen); }
	}
	rcode = run_validate_chi2(TESTLOG,0,gen,distr[0],'+');
	n_tests_failed += (rcode==UNUR_SUCCESS)?0:1;
	n_tests_failed += (rcode==UNUR_FAILURE)?1000:0;
	unur_free(gen);
	unur_distr_free(distr_localcopy);
	} while (0);
	}

/* distribution [1] */

	if(TRUE) {
	unur_reset_errno();
	do {
	UNUR_DISTR *distr_localcopy = unur_distr_clone(distr[1]);
par = unur_cext_new(distr_localcopy);
unur_cext_set_sample(par,exp1_sample);
	gen = unur_init(par);
	rcode = run_validate_chi2(TESTLOG,0,gen,distr[1],'-');
	n_tests_failed += (rcode==UNUR_SUCCESS)?0:1;
	n_tests_failed += (rcode==UNUR_FAILURE)?1000:0;
	unur_free(gen);
	unur_distr_free(distr_localcopy);
	} while (0);
	}

	if(TRUE) {
	unur_reset_errno();
	do {
	UNUR_DISTR *distr_localcopy = unur_distr_clone(distr[1]);
par = unur_cext_new(distr_localcopy);
unur_cext_set_sample(par,expa_sample);
	gen = unur_init(par);
	rcode = run_validate_chi2(TESTLOG,0,gen,distr[1],'+');
	n_tests_failed += (rcode==UNUR_SUCCESS)?0:1;
	n_tests_failed += (rcode==UNUR_FAILURE)?1000:0;
	unur_free(gen);
	unur_distr_free(distr_localcopy);
	} while (0);
	}

	if(TRUE) {
	unur_reset_errno();
	do {
	UNUR_DISTR *distr_localcopy = unur_distr_clone(distr[1]);
par = unur_cext_new(distr_localcopy);
unur_cext_set_init(par,expb_init);
unur_cext_set_sample(par,expb_sample);
	gen = unur_init(par);
	rcode = run_validate_chi2(TESTLOG,0,gen,distr[1],'+');
	n_tests_failed += (rcode==UNUR_SUCCESS)?0:1;
	n_tests_failed += (rcode==UNUR_FAILURE)?1000:0;
	unur_free(gen);
	unur_distr_free(distr_localcopy);
	} while (0);
	}

	if(TRUE) {
	unur_reset_errno();
	do {
	UNUR_DISTR *distr_localcopy = unur_distr_clone(distr[1]);
{ UNUR_DISTR *dg =NULL;
par = unur_cext_new(distr_localcopy);
unur_cext_set_init(par,expb_init);
unur_cext_set_sample(par,expb_sample);
fpm[0] = 2.;
	gen = unur_init(par);
	if (gen) {
dg = unur_get_distr(gen);
unur_distr_cont_set_pdfparams(dg,fpm,1);
unur_reinit(gen); }
	}
	rcode = run_validate_chi2(TESTLOG,0,gen,distr[1],'+');
	n_tests_failed += (rcode==UNUR_SUCCESS)?0:1;
	n_tests_failed += (rcode==UNUR_FAILURE)?1000:0;
	unur_free(gen);
	unur_distr_free(distr_localcopy);
	} while (0);
	}

/* distribution [2] */

	if(TRUE) {
	unur_reset_errno();
	do {
	UNUR_DISTR *distr_localcopy = unur_distr_clone(distr[2]);
par = unur_cext_new(distr_localcopy);
unur_cext_set_sample(par,exp1_sample);
	gen = unur_init(par);
	rcode = run_validate_chi2(TESTLOG,0,gen,distr[2],'+');
	n_tests_failed += (rcode==UNUR_SUCCESS)?0:1;
	n_tests_failed += (rcode==UNUR_FAILURE)?1000:0;
	unur_free(gen);
	unur_distr_free(distr_localcopy);
	} while (0);
	}

	if(TRUE) {
	unur_reset_errno();
	do {
	UNUR_DISTR *distr_localcopy = unur_distr_clone(distr[2]);
par = unur_cext_new(distr_localcopy);
unur_cext_set_sample(par,expa_sample);
	gen = unur_init(par);
	rcode = run_validate_chi2(TESTLOG,0,gen,distr[2],'+');
	n_tests_failed += (rcode==UNUR_SUCCESS)?0:1;
	n_tests_failed += (rcode==UNUR_FAILURE)?1000:0;
	unur_free(gen);
	unur_distr_free(distr_localcopy);
	} while (0);
	}

	if(TRUE) {
	unur_reset_errno();
	do {
	UNUR_DISTR *distr_localcopy = unur_distr_clone(distr[2]);
par = unur_cext_new(distr_localcopy);
unur_cext_set_init(par,expb_init);
unur_cext_set_sample(par,expb_sample);
	gen = unur_init(par);
	rcode = run_validate_chi2(TESTLOG,0,gen,distr[2],'+');
	n_tests_failed += (rcode==UNUR_SUCCESS)?0:1;
	n_tests_failed += (rcode==UNUR_FAILURE)?1000:0;
	unur_free(gen);
	unur_distr_free(distr_localcopy);
	} while (0);
	}

	if(TRUE) {
	unur_reset_errno();
	do {
	UNUR_DISTR *distr_localcopy = unur_distr_clone(distr[2]);
{ UNUR_DISTR *dg =NULL;
par = unur_cext_new(distr_localcopy);
unur_cext_set_init(par,expb_init);
unur_cext_set_sample(par,expb_sample);
fpm[0] = 2.;
	gen = unur_init(par);
	if (gen) {
dg = unur_get_distr(gen);
unur_distr_cont_set_pdfparams(dg,fpm,1);
unur_reinit(gen); }
	}
	rcode = run_validate_chi2(TESTLOG,0,gen,distr[2],'+');
	n_tests_failed += (rcode==UNUR_SUCCESS)?0:1;
	n_tests_failed += (rcode==UNUR_FAILURE)?1000:0;
	unur_free(gen);
	unur_distr_free(distr_localcopy);
	} while (0);
	}

	/* timing */
	stopwatch_print(TESTLOG,"\n<*>time = %.0f ms\n", stopwatch_lap(&watch));


/* free distributions */
	unur_distr_free(distr[0]);
	unur_distr_free(distr[1]);
	unur_distr_free(distr[2]);

	/* test finished */
	test_ok &= (n_tests_failed>CHI2_FAILURES_TOLERATED) ? 0 : 1;
	/* we accept CHI2_FAILURES_TOLERATED failures */
	(n_tests_failed>CHI2_FAILURES_TOLERATED) ? printf(" ==> failed] ") : printf(" ==> ok] ");

} /* end of test_validate */

/* enable GCC compiler warning */
GCC_DIAG_ON(unused-variable)


/*---------------------------------------------------------------------------*/
/* run generator in verifying mode */

void run_verify_generator( FILE *LOG, int line, UNUR_PAR *par )
{
	UNUR_GEN *gen;
	int i;

	/* switch to verifying mode */
	unur_cext_set_verify(par,1);

	/* initialize generator */
	gen = unur_init( par ); abort_if_NULL(LOG, line, gen);

	/* run generator */
	for (i=0; i<VIOLATE_SAMPLE_SIZE; i++)
		unur_sample_cont(gen);

	/* destroy generator */
	unur_free(gen); 

} /* end of run_verify_generator() */

int unur_cext_set_verify(UNUR_PAR *par ATTRIBUTE__UNUSED, int verify ATTRIBUTE__UNUSED) {return 0;}

/*---------------------------------------------------------------------------*/

int main(void)
{ 
        unsigned long seed;
	char *str_seed, *str_tail;

	/* start stop watch */
	stopwatch_init();
	stopwatch_start(&watch);

        /* open log file for unuran and set output stream for unuran messages */
        UNURANLOG = fopen( "t_cext_unuran.log","w" );
        abort_if_NULL( stderr,-1, UNURANLOG );
        unur_set_stream( UNURANLOG );

        /* open log file for testing */
	TESTLOG = fopen( "t_cext_test.log","w" );
	abort_if_NULL( stderr,-1, TESTLOG );

        /* seed for uniform generators */

	/* seed set by environment */
	str_seed = getenv("SEED");

	if (str_seed != NULL) {
	    seed = strtol(str_seed, &str_tail, 10);
	    if (seed == 0u) 
		seed = 983452;
	}
	else {
#ifdef SEED
	    seed = SEED;
#else
	    seed = 983452;
#endif
	}

        /* seed build-in uniform generators */
        unur_urng_MRG31k3p_seed(NULL,seed);
        unur_urng_fish_seed(NULL,seed);
	unur_urng_mstd_seed(NULL,seed);

	/* seed uniform random number generator */
#ifdef UNUR_URNG_UNURAN
#  ifdef UNUR_URNG_DEFAULT_RNGSTREAM
	{
	        unsigned long sa[6];
	        int i;
	        for (i=0; i<6; i++) sa[i] = seed;
                RngStream_SetPackageSeed(sa);
        }
#  else
	if (unur_urng_seed(NULL,seed) != UNUR_SUCCESS) {
	        fprintf(stderr,"WARNING: Seed could not be set at random\n");
                seed = ~0u;
	}
#  endif  /* UNUR_URNG_DEFAULT_RNGSTREAM */
#endif  /* UNUR_URNG_UNURAN */
 
	/* set default debugging flag */
	unur_set_default_debug(UNUR_DEBUG_ALL);

        /* detect required check mode */
        fullcheck = (getenv("UNURANFULLCHECK")==NULL) ? FALSE : TRUE;

	/* write header into log file */
        print_test_log_header( TESTLOG, seed, fullcheck );

	/* set timer for sending SIGALRM signal */
	set_alarm(TESTLOG);

	/* start test */
	printf("cext: ");

	/* run tests */
test_new();
test_set();
test_get();
test_init();
test_reinit();
test_sample();
test_validate();


	/* test finished */
	printf("\n");  fflush(stdout);

	/* close log files */
	fprintf(TESTLOG,"\n====================================================\n\n");
	if (test_ok)
		fprintf(TESTLOG,"All tests PASSED.\n");
	else
		fprintf(TESTLOG,"Test(s) FAILED.\n");

	/* timing */
	stopwatch_print(TESTLOG,"\n<*>total time = %.0f ms\n\n", stopwatch_stop(&watch));

	fclose(UNURANLOG);
	fclose(TESTLOG);

	/* free memory */
	compare_free_memory();
	unur_urng_free(unur_get_default_urng());
	unur_urng_free(unur_get_default_urng_aux());

	/* exit */
	exit( (test_ok) ? EXIT_SUCCESS : EXIT_FAILURE );

} /* end of main */

