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// vim: syntax=cpp
/*
 * Copyright (C) 2007-2010 Xagasoft, All rights reserved.
 *
 * This file is part of the libbu++ library and is released under the
 * terms of the license contained in the file LICENSE.
 */

#include "bu/file.h"

#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>

suite File
{
	test writeFull
	{
		Bu::File sf("testfile1", Bu::File::WriteNew );
		for( int c = 0; c < 256; c++ )
		{
			unsigned char ch = (unsigned char)c;
			sf.write( &ch, 1 );
			unitTest( sf.tell() == c+1 );
		}
		//unitTest( sf.canRead() == false );
		//unitTest( sf.canWrite() == true );
		//unitTest( sf.canSeek() == true );
		sf.close();
		struct stat sdat;
		stat("testfile1", &sdat );
		unitTest( sdat.st_size == 256 );
	}

	test readBlocks
	{
		Bu::File sf("testfile1", Bu::File::Read );
		unsigned char buf[50];
		size_t total = 0;
		for(;;)
		{
			size_t s = sf.read( buf, 50 );
			for( size_t c = 0; c < s; c++ )
			{
				unitTest( buf[c] == (unsigned char)(c+total) );
			}
			total += s;
			if( s < 50 )
			{
				unitTest( total == 256 );
				unitTest( sf.isEos() == true );
				break;
			}
		}
		sf.close();
	}

	test readError1
	{
		try
		{
			Bu::File sf("doesn'texist", Bu::File::Read );
			unitFailed("No exception thrown");
		}
		catch( Bu::FileException &e )
		{
			return;
		}
	}

	test readError2
	{
		Bu::File sf("testfile1", Bu::File::Read );
		char buf[256];
		int r = sf.read( buf, 256 );
		unitTest( r == 256 );
		// You have to read past the end to set the EOS flag.
		unitTest( sf.isEos() == false );
		try
		{
			if( sf.read( buf, 5 ) > 0 )
			{
				unitFailed("Non-zero read result");
			}
			else
			{
				sf.close();
			}
		}
		catch( Bu::FileException &e )
		{
			sf.close();
			return;
		}
	}
}