text: /* test_picture - Simple tester for picture routines in grabbag
   * Copyright (C) 2006-2009  Josh Coalson
   * Copyright (C) 2011-2016  Xiph.Org Foundation
   *
   * This program is free software; you can redistribute it and/or
   * modify it under the terms of the GNU General Public License
   * as published by the Free Software Foundation; either version 2
   * of the License, or (at your option) any later version.
   *
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Public License for more details.
   *
   * You should have received a copy of the GNU General Public License along
   * with this program; if not, write to the Free Software Foundation, Inc.,
   * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
   */
  
  #ifdef HAVE_CONFIG_H
  #  include <config.h>
  #endif
  
  #include <string.h>
  #include "FLAC/assert.h"
  #include "share/grabbag.h"
  
  typedef struct {
  	const char *path;
  	const char *mime_type;
  	const char *description;
  	FLAC__uint32 width;
  	FLAC__uint32 height;
  	FLAC__uint32 depth;
  	FLAC__uint32 colors;
  	FLAC__StreamMetadata_Picture_Type type;
  } PictureFile;
  
  PictureFile picturefiles[] = {
  	{ "0.gif", "image/gif" , "", 24, 24, 24, 2, FLAC__STREAM_METADATA_PICTURE_TYPE_FRONT_COVER },
  	{ "1.gif", "image/gif" , "", 12,  8, 24, 256, FLAC__STREAM_METADATA_PICTURE_TYPE_BACK_COVER },
  	{ "2.gif", "image/gif" , "", 16, 14, 24, 128, FLAC__STREAM_METADATA_PICTURE_TYPE_OTHER },
  	{ "0.jpg", "image/jpeg", "", 30, 20,  8, 0, FLAC__STREAM_METADATA_PICTURE_TYPE_FRONT_COVER },
  	{ "4.jpg", "image/jpeg", "", 31, 47, 24, 0, FLAC__STREAM_METADATA_PICTURE_TYPE_FRONT_COVER },
  	{ "0.png", "image/png" , "", 30, 20,  8, 0, FLAC__STREAM_METADATA_PICTURE_TYPE_FRONT_COVER },
  	{ "1.png", "image/png" , "", 30, 20,  8, 0, FLAC__STREAM_METADATA_PICTURE_TYPE_FRONT_COVER },
  	{ "2.png", "image/png" , "", 30, 20, 24, 7, FLAC__STREAM_METADATA_PICTURE_TYPE_FRONT_COVER },
  	{ "3.png", "image/png" , "", 30, 20, 24, 7, FLAC__STREAM_METADATA_PICTURE_TYPE_FRONT_COVER },
  	{ "4.png", "image/png" , "", 31, 47, 24, 0, FLAC__STREAM_METADATA_PICTURE_TYPE_FRONT_COVER },
  	{ "5.png", "image/png" , "", 31, 47, 24, 0, FLAC__STREAM_METADATA_PICTURE_TYPE_FRONT_COVER },
  	{ "6.png", "image/png" , "", 31, 47, 24, 23, FLAC__STREAM_METADATA_PICTURE_TYPE_FRONT_COVER },
  	{ "7.png", "image/png" , "", 31, 47, 24, 23, FLAC__STREAM_METADATA_PICTURE_TYPE_FRONT_COVER },
  	{ "8.png", "image/png" , "", 32, 32, 32, 0, 999 }
  };
  
  static FLAC__bool debug_ = false;
  
  static FLAC__bool failed_(const char *msg)
  {
  	if(msg)
  		printf("FAILED, %s\n", msg);
  	else
  		printf("FAILED\n");
  
  	return false;
  }
  
  static FLAC__bool test_one_picture(const char *prefix, const PictureFile *pf, const PictureResolution * res, FLAC__bool fn_only)
  {
  	FLAC__StreamMetadata *obj;
  	const char *error;
  	char s[4096];
  	if(fn_only)
  		flac_snprintf(s, sizeof(s), "pictures/%s", pf->path);
  	else if (res == NULL)
  		flac_snprintf(s, sizeof(s), "%u|%s|%s||pictures/%s", (unsigned)pf->type, pf->mime_type, pf->description, pf->path);
  	else
  		flac_snprintf(s, sizeof(s), "%u|%s|%s|%dx%dx%d/%d|pictures/%s", (unsigned)pf->type, pf->mime_type, pf->description, res->width, res->height, res->depth, res->colors, pf->path);
  
  	printf("testing grabbag__picture_parse_specification(\"%s\")... ", s);
  
  	flac_snprintf(s, sizeof(s), "%s/%s", prefix, pf->path);
  	if((obj = grabbag__picture_from_specification(fn_only? FLAC__STREAM_METADATA_PICTURE_TYPE_FRONT_COVER : pf->type, pf->mime_type, pf->description, res, s, &error)) == 0)
  		return failed_(error);
  	if(debug_) {
  		printf("\ntype=%u (%s)\nmime_type=%s\ndescription=%s\nwidth=%u\nheight=%u\ndepth=%u\ncolors=%u\ndata_length=%u\n",
  			obj->data.picture.type,
  			obj->data.picture.type < FLAC__STREAM_METADATA_PICTURE_TYPE_UNDEFINED?
  				FLAC__StreamMetadata_Picture_TypeString[obj->data.picture.type] : "UNDEFINED",
  			obj->data.picture.mime_type,
  			obj->data.picture.description,
  			obj->data.picture.width,
  			obj->data.picture.height,
  			obj->data.picture.depth,
  			obj->data.picture.colors,
  			obj->data.picture.data_length
  		);
  	}
  	if(obj->data.picture.type != (fn_only? FLAC__STREAM_METADATA_PICTURE_TYPE_FRONT_COVER : pf->type))
  		return failed_("picture type mismatch");
  	if(strcmp(obj->data.picture.mime_type, pf->mime_type))
  		return failed_("picture MIME type mismatch");
  	if(strcmp((const char *)obj->data.picture.description, (const char *)pf->description))
  		return failed_("picture description mismatch");
  	if(obj->data.picture.width != pf->width)
  		return failed_("picture width mismatch");
  	if(obj->data.picture.height != pf->height)
  		return failed_("picture height mismatch");
  	if(obj->data.picture.depth != pf->depth)
  		return failed_("picture depth mismatch");
  	if(obj->data.picture.colors != pf->colors)
  		return failed_("picture colors mismatch");
  	printf("OK\n");
  	FLAC__metadata_object_delete(obj);
  	return true;
  }
  
  static FLAC__bool do_picture(const char *prefix)
  {
  	FLAC__StreamMetadata *obj;
  	PictureResolution res;
  	const char *error;
  	size_t i;
  
  	printf("\n+++ grabbag unit test: picture\n\n");
  
  	/* invalid spec: no filename */
  	printf("testing grabbag__picture_parse_specification(\"\")... ");
  	if(0 != (obj = grabbag__picture_parse_specification("", &error)))
  		return failed_("expected error, got object");
  	printf("OK (failed as expected, error: %s)\n", error);
  
  	/* invalid spec: no filename */
  	printf("testing grabbag__picture_parse_specification(\"||||\")... ");
  	if(0 != (obj = grabbag__picture_parse_specification("||||", &error)))
  		return failed_("expected error, got object");
  	printf("OK (failed as expected: %s)\n", error);
  
  	/* invalid spec: no filename */
  	printf("testing grabbag__picture_parse_specification(\"|image/gif|||\")... ");
  	if(0 != (obj = grabbag__picture_parse_specification("|image/gif|||", &error)))
  		return failed_("expected error, got object");
  	printf("OK (failed as expected: %s)\n", error);
  
  	/* invalid spec: bad resolution */
  	printf("testing grabbag__picture_parse_specification(\"|image/gif|desc|320|0.gif\")... ");
  	if(0 != (obj = grabbag__picture_parse_specification("|image/gif|desc|320|0.gif", &error)))
  		return failed_("expected error, got object");
  	printf("OK (failed as expected: %s)\n", error);
  
  	/* invalid spec: bad resolution */
  	printf("testing grabbag__picture_parse_specification(\"|image/gif|desc|320x240|0.gif\")... ");
  	if(0 != (obj = grabbag__picture_parse_specification("|image/gif|desc|320x240|0.gif", &error)))
  		return failed_("expected error, got object");
  	printf("OK (failed as expected: %s)\n", error);
  
  	/* invalid spec: no filename */
  	printf("testing grabbag__picture_parse_specification(\"|image/gif|desc|320x240x9|\")... ");
  	if(0 != (obj = grabbag__picture_parse_specification("|image/gif|desc|320x240x9|", &error)))
  		return failed_("expected error, got object");
  	printf("OK (failed as expected: %s)\n", error);
  
  	/* invalid spec: #colors exceeds color depth */
  	printf("testing grabbag__picture_parse_specification(\"|image/gif|desc|320x240x9/2345|0.gif\")... ");
  	if(0 != (obj = grabbag__picture_parse_specification("|image/gif|desc|320x240x9/2345|0.gif", &error)))
  		return failed_("expected error, got object");
  	printf("OK (failed as expected: %s)\n", error);
  
  	/* invalid spec: standard icon has to be 32x32 PNG */
  	printf("testing grabbag__picture_parse_specification(\"1|-->|desc|32x24x9|0.gif\")... ");
  	if(0 != (obj = grabbag__picture_parse_specification("1|-->|desc|32x24x9|0.gif", &error)))
  		return failed_("expected error, got object");
  	printf("OK (failed as expected: %s)\n", error);
  
  	/* invalid spec: need resolution for linked URL */
  	printf("testing grabbag__picture_parse_specification(\"|-->|desc||http://blah.blah.blah/z.gif\")... ");
  	if(0 != (obj = grabbag__picture_parse_specification("|-->|desc||http://blah.blah.blah/z.gif", &error)))
  		return failed_("expected error, got object");
  	printf("OK (failed as expected: %s)\n", error);
  
  	printf("testing grabbag__picture_parse_specification(\"|-->|desc|320x240x9|http://blah.blah.blah/z.gif\")... ");
  	if(0 == (obj = grabbag__picture_parse_specification("|-->|desc|320x240x9|http://blah.blah.blah/z.gif", &error)))
  		return failed_(error);
  	printf("OK\n");
  	FLAC__metadata_object_delete(obj);
  
  	/* test automatic parsing of picture files from only the file name */
  	for(i = 0; i < sizeof(picturefiles)/sizeof(picturefiles[0]); i++)
  		if(!test_one_picture(prefix, picturefiles+i, NULL, /*fn_only=*/true))
  			return false;
  
  	/* test automatic parsing of picture files to get resolution/color info */
  	for(i = 0; i < sizeof(picturefiles)/sizeof(picturefiles[0]); i++)
  		if(!test_one_picture(prefix, picturefiles+i, NULL, /*fn_only=*/false))
  			return false;
  
  	res.width = picturefiles[0].width = 320;
  	res.height = picturefiles[0].height = 240;
  	res.depth = picturefiles[0].depth = 3;
  	res.colors = picturefiles[0].colors = 2;
  	if(!test_one_picture(prefix, picturefiles+0, &res, /*fn_only=*/false))
  		return false;
  
  	return true;
  }
  
  int main(int argc, char *argv[])
  {
  	const char *usage = "usage: test_pictures path_prefix\n";
  
  	if(argc > 1 && 0 == strcmp(argv[1], "-h")) {
  		puts(usage);
  		return 0;
  	}
  
  	if(argc != 2) {
  		fputs(usage, stderr);
  		return 255;
  	}
  
  	return do_picture(argv[1])? 0 : 1;
  }
  