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{
This file is part of the Free Pascal packages.
Copyright (c) 1999-2012 by the Free Pascal development team
Tests zip/unzip functionality provided by the FPC zipper.pp unit.
Created by Reinier Olislagers
See the file COPYING.FPC, included in this distribution,
for details about the copyright.
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.
**********************************************************************}
program tconend;
{$mode objfpc}{$h+}
uses SysUtils, classes, zipper, md5;
type
TCallBackHandler = class(TObject)
public
procedure EndOfFile(Sender:TObject; const Ratio:double);
procedure StartOfFile(Sender:TObject; const AFileName:string);
end;
procedure TCallBackHandler.EndOfFile(Sender : TObject; Const Ratio : Double);
begin
writeln('End of file handler hit; ratio: '+floattostr(ratio));
if (Ratio<0) then
begin
writeln('Found compression ratio '+floattostr(Ratio)+', which should never be lower than 0.');
halt(3);
end;
end;
procedure TCallBackHandler.StartOfFile(Sender : TObject; Const AFileName : String);
begin
writeln('Start of file handler hit; filename: '+AFileName);
if AFileName='' then
begin
writeln('Archive filename should not be empty.');
halt(4);
end;
end;
var
code: cardinal;
CallBackHandler: TCallBackHandler;
CompressedFile: string;
FileContents: TStringList;
UncompressedFile1: string;
UncompressedFile1Hash: string;
UncompressedFile2: string;
UncompressedFile2Hash: string;
OurZipper: TZipper;
UnZipper: TUnZipper;
begin
code := 0;
UncompressedFile1:=SysUtils.GetTempFileName('', 'UNC');
UncompressedFile2:=SysUtils.GetTempFileName('', 'UNC');
CompressedFile:=SysUtils.GetTempFileName('', 'ZP');
FileContents:=TStringList.Create;
OurZipper:=TZipper.Create;
UnZipper:=TUnZipper.Create;
CallBackHandler:=TCallBackHandler.Create;
try
// Set up uncompressed files
FileContents.Add('This is an uncompressed file.');
FileContents.Add('And another line.');
FileContents.SaveToFile(UncompressedFile1);
FileContents.Clear;
FileContents.Add('Have you looked into using fpcup today?');
FileContents.Add('It works nicely with fpc and goes well with a fruity red wine, too.');
FileContents.SaveToFile(UncompressedFile2);
// Remember their content, so we can compare later.
UncompressedFile1Hash:=MD5Print(MD5File(UncompressedFile1, MDDefBufSize));
UncompressedFile2Hash:=MD5Print(MD5File(UncompressedFile2, MDDefBufSize));
// Test zip functionality.
writeln('Beginning zip test');
OurZipper.FileName:=CompressedFile;
// Add the files only with their filenames, we don't want to create
// subdirectories:
OurZipper.Entries.AddFileEntry(UncompressedFile1,ExtractFileName(UncompressedFile1));
OurZipper.Entries.AddFileEntry(UncompressedFile2,ExtractFileName(UncompressedFile2));
OurZipper.OnStartFile:=@CallBackHandler.StartOfFile;
OurZipper.OnEndFile:=@CallBackHandler.EndOfFile;
OurZipper.ZipAllFiles;
if not FileExists(CompressedFile) then
begin
writeln('Zip file was not created.');
halt(5);
end;
writeln('Zip test done');
// Delete original files
DeleteFile(UncompressedFile1);
DeleteFile(UncompressedFile2);
// Now unzip
writeln('Beginning unzip test');
Unzipper.FileName:=CompressedFile;
Unzipper.OutputPath:=ExtractFilePath(UncompressedFile1);
UnZipper.OnStartFile:=@CallBackHandler.StartOfFile;
UnZipper.OnEndFile:=@CallBackHandler.EndOfFile;
Unzipper.Examine;
Unzipper.UnZipAllFiles;
// Now we should have the uncompressed files again
if (not FileExists(UncompressedFile1)) or
(not FileExists(UncompressedFile2)) then
begin
writeln('Unzip failed: could not find decompressed files.');
halt(6);
end;
// Compare hashes
if
(UncompressedFile1Hash<>MD5Print(MD5File(UncompressedFile1, MDDefBufSize)))
or
(UncompressedFile2Hash<>MD5Print(MD5File(UncompressedFile2, MDDefBufSize)))
then
begin
writeln('Unzip failed: uncompressed files are not the same as the originals.');
halt(7);
end;
writeln('Unzip test done');
if code = 0 then
writeln('Basic zip/unzip tests passed')
else
writeln('Basic zip/unzip test failed: ', code);
finally
FileContents.Free;
CallBackHandler.Free;
OurZipper.Free;
UnZipper.Free;
try
if FileExists(CompressedFile) then DeleteFile(CompressedFile);
if FileExists(UncompressedFile1) then DeleteFile(UncompressedFile1);
if FileExists(UncompressedFile2) then DeleteFile(UncompressedFile2);
finally
// Ignore errors; operating system should clean out temp files
end;
end;
Halt(code);
end.
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