text: /*
  ** Copyright (c) 2002-2016, Erik de Castro Lopo <erikd@mega-nerd.com>
  ** All rights reserved.
  **
  ** This code is released under 2-clause BSD license. Please see the
  ** file at : https://github.com/erikd/libsamplerate/blob/master/COPYING
  */
  
  #include <stdio.h>
  #include <stdlib.h>
  #include <string.h>
  
  #include <samplerate.h>
  
  #include "util.h"
  
  static void name_test (void) ;
  static void error_test (void) ;
  static void src_ratio_test (void) ;
  static void zero_input_test (int converter) ;
  
  int
  main (void)
  {
  	puts ("") ;
  
  	printf ("    version : %s\n\n", src_get_version ()) ;
  
  	/* Current max converter is SRC_LINEAR. */
  	name_test () ;
  
  	error_test () ;
  
  	src_ratio_test () ;
  
  	zero_input_test (SRC_ZERO_ORDER_HOLD) ;
  	zero_input_test (SRC_LINEAR) ;
  	zero_input_test (SRC_SINC_FASTEST) ;
  
  	puts ("") ;
  	return 0 ;
  } /* main */
  
  static void
  name_test (void)
  {	const char	*name ;
  	int	k = 0 ;
  
  	puts ("    name_test :") ;
  
  	while (1)
  	{	name = src_get_name (k) ;
  		if (name == NULL)
  			break ;
  		printf ("\tName %d : %s\n", k, name) ;
  		printf ("\tDesc %d : %s\n", k, src_get_description (k)) ;
  		k ++ ;
  		} ;
  
  	puts ("") ;
  
  	return ;
  } /* name_test */
  
  /*------------------------------------------------------------------------------
  */
  
  typedef struct
  {	double	ratio ;
  	int		should_pass ;
  } RATIO_TEST ;
  
  static RATIO_TEST ratio_test [] =
  {	{	1.0 / 256.1,	0 },
  	{	1.0 / 256.0,	1 },
  	{	1.0,			1 },
  	{	256.0, 			1 },
  	{	256.1,			0 },
  	{	-1.0,			0 }
  } ;
  
  static void
  src_ratio_test (void)
  {	int k ;
  
  	puts ("    src_ratio_test (SRC ratio must be in range [1/256, 256]):" ) ;
  
  
  	for (k = 0 ; k < ARRAY_LEN (ratio_test) ; k++)
  	{	if (ratio_test [k].should_pass && src_is_valid_ratio (ratio_test [k].ratio) == 0)
  		{	printf ("\n\nLine %d : SRC ratio %f should have passed.\n\n", __LINE__, ratio_test [k].ratio) ;
  			exit (1) ;
  			} ;
  		if (! ratio_test [k].should_pass && src_is_valid_ratio (ratio_test [k].ratio) != 0)
  		{	printf ("\n\nLine %d : SRC ratio %f should not have passed.\n\n", __LINE__, ratio_test [k].ratio) ;
  			exit (1) ;
  			} ;
  		printf ("\t SRC ratio (%9.5f) : %s ................... ok\n", ratio_test [k].ratio,
  			(ratio_test [k].should_pass ? "pass" : "fail")) ;
  		} ;
  
  	puts ("") ;
  
  	return ;
  } /* src_ratio_test */
  
  static void
  error_test (void)
  {	const char *errorstr ;
  	int		k, errors = 0 ;
  
  	puts ("    error_test :") ;
  
  	for (k = 0 ; 1 ; k++)
  	{	errorstr = src_strerror (k) ;
  		printf ("\t%-2d : %s\n", k, errorstr) ;
  		if (errorstr == NULL)
  		{	errors ++ ;
  			continue ;
  			} ;
  		if (strstr (errorstr, "Placeholder.") == errorstr)
  			break ;
  		} ;
  
  	if (errors != 0)
  	{	printf ("\n\nLine %d : Missing error numbers above.\n\n", __LINE__) ;
  		exit (1) ;
  		} ;
  
  	puts ("") ;
  
  	return ;
  } /* error_test */
  
  static void
  zero_input_test (int converter)
  {	SRC_DATA data ;
  	SRC_STATE *state ;
  	float out [100] ;
  	int error ;
  
  	printf ("    %s (%-26s) ........ ", __func__, src_get_name (converter)) ;
  	fflush (stdout) ;
  
  	if ((state = src_new (converter, 1, &error)) == NULL)
  	{	printf ("\n\nLine %d : src_new failed : %s.\n\n", __LINE__, src_strerror (error)) ;
  		exit (1) ;
  		} ;
  
  	data.data_in = (float *) 0xdeadbeef ;
  	data.input_frames = 0 ;
  	data.data_out = out ;
  	data.output_frames = ARRAY_LEN (out) ;
  	data.end_of_input = 0 ;
  	data.src_ratio = 1.0 ;
  
  	if ((error = src_process (state, &data)))
  	{	printf ("\n\nLine %d : src_new failed : %s.\n\n", __LINE__, src_strerror (error)) ;
  		exit (1) ;
  		} ;
  
  	state = src_delete (state) ;
  
  	puts ("ok") ;
  } /* zero_input_test */
  