/*
	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 EMPL
 **/
    
/*---------------------------------------------------------------------------*/
#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_empl_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 */

#define COMPARE_SAMPLE_SIZE   (10000)
#define VIOLATE_SAMPLE_SIZE   (20)

/* sample size for Gaussian distributet sample */
#define samplesize (5000)

UNUR_DISTR *get_distr_with_data( void );
UNUR_DISTR *get_distr_with_Gaussian_data( void );
double urng_ed (void *dummy);





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

#ifndef CHI2_FAILURES_TOLERATED
#  define CHI2_FAILURES_TOLERATED DEFAULT_CHI2_FAILURES_TOLERATED
#endif

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



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

UNUR_DISTR *get_distr_with_data( void )
{
#define PV_SIZE 20
  double pv[PV_SIZE];
  UNUR_DISTR *distr;
  int i;

  for (i=0; i<PV_SIZE; i++)
    pv[i] = 10. * unur_urng_fish(NULL);

  distr = unur_distr_cemp_new();
  unur_distr_cemp_set_data(distr,pv,PV_SIZE);

  return distr;

#undef PV_SIZE
} /* end of get_distr_with_data() */

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

double urng_ed (void *dummy ATTRIBUTE__UNUSED)
{
  static int state = 1;
  static double stepsize = 1./samplesize;

  state = (state+1) % samplesize;
  return ((state+0.5)*stepsize);
}

UNUR_DISTR *get_distr_with_Gaussian_data( void )
{
  double *data;
  UNUR_GEN *normal;
  UNUR_DISTR *distr;
  UNUR_URNG *urng;
  int i;

  urng = unur_urng_fvoid_new(urng_ed, NULL);

  data = malloc(samplesize*sizeof(double));
  normal = unur_str2gen("normal & method = hinv");
  unur_chg_urng(normal,urng);

  for (i=0;i<samplesize;i++)
  data[i] = unur_sample_cont(normal);

  distr = unur_distr_cemp_new();
  unur_distr_cemp_set_data(distr,data,samplesize);

  free(data);
  unur_free(normal);
  unur_urng_free(urng);

  return distr;
}

/*---------------------------------------------------------------------------*/
/* [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 NULL ptr */
UNUR_DISTR *distr = NULL;
   distr = NULL; 


unur_reset_errno();
n_tests_failed += (check_expected_NULL(TESTLOG,33,(unur_empl_new( distr )))==UNUR_SUCCESS)?0:1;
n_tests_failed += (check_errorcode(TESTLOG,33,UNUR_ERR_NULL)==UNUR_SUCCESS)?0:1;
unur_distr_free(distr);
}

{ /* invalid distribution type */
UNUR_DISTR *distr = NULL;
   distr = unur_distr_cont_new(); 


unur_reset_errno();
n_tests_failed += (check_expected_NULL(TESTLOG,39,(unur_empl_new( distr )))==UNUR_SUCCESS)?0:1;
n_tests_failed += (check_errorcode(TESTLOG,39,UNUR_ERR_DISTR_INVALID)==UNUR_SUCCESS)?0:1;
unur_distr_free(distr);
}

{ /* data missing in distribution object */
UNUR_DISTR *distr = NULL;
   distr = unur_distr_cemp_new();   /* no data given */ 


unur_reset_errno();
n_tests_failed += (check_expected_NULL(TESTLOG,45,(unur_empl_new( distr )))==UNUR_SUCCESS)?0:1;
n_tests_failed += (check_errorcode(TESTLOG,45,UNUR_ERR_DISTR_REQUIRED)==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() */

/*---------------------------------------------------------------------------*/
/* [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,67,(unur_init( par )))==UNUR_SUCCESS)?0:1;
n_tests_failed += (check_errorcode(TESTLOG,67,UNUR_ERR_NULL)==UNUR_SUCCESS)?0:1;
}

{ /* run init */
UNUR_DISTR *distr = NULL;
UNUR_PAR   *par = NULL;
UNUR_GEN   *gen = NULL;
   distr = get_distr_with_data();
   par = unur_empl_new(distr);
   gen = unur_init( par ); 
abort_if_NULL(TESTLOG, 72,    gen );


unur_reset_errno();
;
n_tests_failed += (check_errorcode(TESTLOG,76,0x0u)==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_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 = get_distr_with_data();
   par = unur_empl_new(distr);
   gen = unur_init( par ); 
abort_if_NULL(TESTLOG, 84,    gen );


unur_reset_errno();
n_tests_failed += (check_expected_setfailed(TESTLOG,88,(unur_reinit( gen )))==UNUR_SUCCESS)?0:1;
n_tests_failed += (check_errorcode(TESTLOG,88,UNUR_ERR_NO_REINIT)==UNUR_SUCCESS)?0:1;

unur_reset_errno();
n_tests_failed += (check_expected_INFINITY(TESTLOG,91,(unur_sample_cont( gen )))==UNUR_SUCCESS)?0:1;
n_tests_failed += (check_errorcode(TESTLOG,91,UNUR_ERR_GEN_CONDITION)==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 = get_distr_with_data();
   par = unur_empl_new(distr);
   gen = unur_init( par ); 
abort_if_NULL(TESTLOG, 101,    gen );


unur_reset_errno();
/* default generator object */;
n_tests_failed += (compare_sequence_gen_start(TESTLOG,105,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,111,gen,COMPARE_SAMPLE_SIZE)==UNUR_SUCCESS)?0:1;
unur_distr_free(distr);
unur_free(gen);
}

{ /* compare stringparser */
UNUR_DISTR *distr = NULL;
UNUR_PAR   *par = NULL;
UNUR_GEN   *gen = NULL;
   double data[] = {1.,2.,3.,4.,5.,6.,7.,8.,9.};
   distr = NULL;
   par = NULL;
   gen = NULL; 


unur_reset_errno();
distr = unur_distr_cemp_new();
unur_distr_cemp_set_data(distr,data,9);
par = unur_empl_new(distr);
gen = unur_init(par);
n_tests_failed += (compare_sequence_gen_start(TESTLOG,126,gen,COMPARE_SAMPLE_SIZE)==UNUR_SUCCESS)?0:1;

unur_reset_errno();
unur_free(gen); gen = NULL;
unur_distr_free(distr); distr = NULL;
gen = unur_str2gen( "cemp; data = (1.,2.,3.,4.,5.,6.,7.,8.,9.) & \
  method = empl" );
n_tests_failed += (compare_sequence_gen(TESTLOG,132,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[1];
	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: 1 */
{
distr[0] = get_distr_with_Gaussian_data();
}

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

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

/* chi^2 tests: 1 */

	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_empl_new(distr_localcopy);
	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);
	}

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


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

	/* 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_empl_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_empl_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_empl_unuran.log","w" );
        abort_if_NULL( stderr,-1, UNURANLOG );
        unur_set_stream( UNURANLOG );

        /* open log file for testing */
	TESTLOG = fopen( "t_empl_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 = 280513;
	}
	else {
#ifdef SEED
	    seed = SEED;
#else
	    seed = 280513;
#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("empl: ");

	/* run tests */
test_new();
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 */

