unipdf/internal/testutils/testutils.go

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package testutils ;import (_b "crypto/md5";_ad "encoding/hex";_e "errors";_ab "fmt";_cf "github.com/unidoc/unipdf/v3/common";_ca "github.com/unidoc/unipdf/v3/core";_cg "image";_cb "image/png";_cee "io";_gf "os";_a "os/exec";_ce "path/filepath";_c "strings";
_gg "testing";);func ParseIndirectObjects (rawpdf string )(map[int64 ]_ca .PdfObject ,error ){_gd :=_ca .NewParserFromString (rawpdf );_abf :=map[int64 ]_ca .PdfObject {};for {_gge ,_ecf :=_gd .ParseIndirectObject ();if _ecf !=nil {if _ecf ==_cee .EOF {break ;
};return nil ,_ecf ;};switch _ee :=_gge .(type ){case *_ca .PdfIndirectObject :_abf [_ee .ObjectNumber ]=_gge ;case *_ca .PdfObjectStream :_abf [_ee .ObjectNumber ]=_gge ;};};for _ ,_dda :=range _abf {_ege (_dda ,_abf );};return _abf ,nil ;};func CopyFile (src ,dst string )error {_ec ,_be :=_gf .Open (src );
if _be !=nil {return _be ;};defer _ec .Close ();_bb ,_be :=_gf .Create (dst );if _be !=nil {return _be ;};defer _bb .Close ();_ ,_be =_cee .Copy (_bb ,_ec );return _be ;};func _ege (_bf _ca .PdfObject ,_ace map[int64 ]_ca .PdfObject )error {switch _bfa :=_bf .(type ){case *_ca .PdfIndirectObject :_fbe :=_bfa ;
_ege (_fbe .PdfObject ,_ace );case *_ca .PdfObjectDictionary :_df :=_bfa ;for _ ,_gb :=range _df .Keys (){_ecfe :=_df .Get (_gb );if _gc ,_efc :=_ecfe .(*_ca .PdfObjectReference );_efc {_aaa ,_aae :=_ace [_gc .ObjectNumber ];if !_aae {return _e .New ("r\u0065\u0066\u0065\u0072\u0065\u006ec\u0065\u0020\u0074\u006f\u0020\u006f\u0075\u0074\u0073i\u0064\u0065\u0020o\u0062j\u0065\u0063\u0074");
};_df .Set (_gb ,_aaa );}else {_ege (_ecfe ,_ace );};};case *_ca .PdfObjectArray :_ba :=_bfa ;for _abfe ,_eb :=range _ba .Elements (){if _fe ,_fea :=_eb .(*_ca .PdfObjectReference );_fea {_fed ,_ade :=_ace [_fe .ObjectNumber ];if !_ade {return _e .New ("r\u0065\u0066\u0065\u0072\u0065\u006ec\u0065\u0020\u0074\u006f\u0020\u006f\u0075\u0074\u0073i\u0064\u0065\u0020o\u0062j\u0065\u0063\u0074");
};_ba .Set (_abfe ,_fed );}else {_ege (_eb ,_ace );};};};return nil ;};func CompareDictionariesDeep (d1 ,d2 *_ca .PdfObjectDictionary )bool {if len (d1 .Keys ())!=len (d2 .Keys ()){_cf .Log .Debug ("\u0044\u0069\u0063\u0074\u0020\u0065\u006e\u0074\u0072\u0069\u0065\u0073\u0020\u006d\u0069s\u006da\u0074\u0063\u0068\u0020\u0028\u0025\u0064\u0020\u0021\u003d\u0020\u0025\u0064\u0029",len (d1 .Keys ()),len (d2 .Keys ()));
_cf .Log .Debug ("\u0057\u0061s\u0020\u0027\u0025s\u0027\u0020\u0076\u0073\u0020\u0027\u0025\u0073\u0027",d1 .WriteString (),d2 .WriteString ());return false ;};for _ ,_dg :=range d1 .Keys (){if _dg =="\u0050\u0061\u0072\u0065\u006e\u0074"{continue ;};
_ag :=_ca .TraceToDirectObject (d1 .Get (_dg ));_ea :=_ca .TraceToDirectObject (d2 .Get (_dg ));if _ag ==nil {_cf .Log .Debug ("\u00761\u0020\u0069\u0073\u0020\u006e\u0069l");return false ;};if _ea ==nil {_cf .Log .Debug ("\u00762\u0020\u0069\u0073\u0020\u006e\u0069l");
return false ;};switch _af :=_ag .(type ){case *_ca .PdfObjectDictionary :_cca ,_fba :=_ea .(*_ca .PdfObjectDictionary );if !_fba {_cf .Log .Debug ("\u0054\u0079\u0070\u0065 m\u0069\u0073\u006d\u0061\u0074\u0063\u0068\u0020\u0025\u0054\u0020\u0076\u0073\u0020%\u0054",_ag ,_ea );
return false ;};if !CompareDictionariesDeep (_af ,_cca ){return false ;};continue ;case *_ca .PdfObjectArray :_fdb ,_dfa :=_ea .(*_ca .PdfObjectArray );if !_dfa {_cf .Log .Debug ("\u00762\u0020n\u006f\u0074\u0020\u0061\u006e\u0020\u0061\u0072\u0072\u0061\u0079");
return false ;};if _af .Len ()!=_fdb .Len (){_cf .Log .Debug ("\u0061\u0072\u0072\u0061\u0079\u0020\u006c\u0065\u006e\u0067\u0074\u0068\u0020\u006d\u0069s\u006da\u0074\u0063\u0068\u0020\u0028\u0025\u0064\u0020\u0021\u003d\u0020\u0025\u0064\u0029",_af .Len (),_fdb .Len ());
return false ;};for _eef :=0;_eef < _af .Len ();_eef ++{_gga :=_ca .TraceToDirectObject (_af .Get (_eef ));_gae :=_ca .TraceToDirectObject (_fdb .Get (_eef ));if _becg ,_gbd :=_gga .(*_ca .PdfObjectDictionary );_gbd {_gbg ,_gde :=_gae .(*_ca .PdfObjectDictionary );
if !_gde {return false ;};if !CompareDictionariesDeep (_becg ,_gbg ){return false ;};}else {if _gga .WriteString ()!=_gae .WriteString (){_cf .Log .Debug ("M\u0069\u0073\u006d\u0061tc\u0068 \u0027\u0025\u0073\u0027\u0020!\u003d\u0020\u0027\u0025\u0073\u0027",_gga .WriteString (),_gae .WriteString ());
return false ;};};};continue ;};if _ag .String ()!=_ea .String (){_cf .Log .Debug ("\u006b\u0065y\u003d\u0025\u0073\u0020\u004d\u0069\u0073\u006d\u0061\u0074\u0063\u0068\u0021\u0020\u0027\u0025\u0073\u0027\u0020\u0021\u003d\u0020'%\u0073\u0027",_dg ,_ag .String (),_ea .String ());
_cf .Log .Debug ("\u0046o\u0072 \u0027\u0025\u0054\u0027\u0020\u002d\u0020\u0027\u0025\u0054\u0027",_ag ,_ea );_cf .Log .Debug ("\u0046\u006f\u0072\u0020\u0027\u0025\u002b\u0076\u0027\u0020\u002d\u0020'\u0025\u002b\u0076\u0027",_ag ,_ea );return false ;
};};return true ;};var (ErrRenderNotSupported =_e .New ("\u0072\u0065\u006e\u0064\u0065r\u0069\u006e\u0067\u0020\u0050\u0044\u0046\u0020\u0066\u0069\u006c\u0065\u0073 \u0069\u0073\u0020\u006e\u006f\u0074\u0020\u0073\u0075\u0070\u0070\u006f\u0072\u0074\u0065\u0064\u0020\u006f\u006e\u0020\u0074\u0068\u0069\u0073\u0020\u0073\u0079\u0073\u0074\u0065m");
);func RenderPDFToPNGs (pdfPath string ,dpi int ,outpathTpl string )error {if dpi <=0{dpi =100;};if _ ,_bec :=_a .LookPath ("\u0067\u0073");_bec !=nil {return ErrRenderNotSupported ;};return _a .Command ("\u0067\u0073","\u002d\u0073\u0044\u0045\u0056\u0049\u0043\u0045\u003d\u0070\u006e\u0067a\u006c\u0070\u0068\u0061","\u002d\u006f",outpathTpl ,_ab .Sprintf ("\u002d\u0072\u0025\u0064",dpi ),pdfPath ).Run ();
};func HashFile (file string )(string ,error ){_dc ,_db :=_gf .Open (file );if _db !=nil {return "",_db ;};defer _dc .Close ();_bg :=_b .New ();if _ ,_db =_cee .Copy (_bg ,_dc );_db !=nil {return "",_db ;};return _ad .EncodeToString (_bg .Sum (nil )),nil ;
};func CompareImages (img1 ,img2 _cg .Image )(bool ,error ){_ac :=img1 .Bounds ();_bc :=0;for _dd :=0;_dd < _ac .Size ().X ;_dd ++{for _ef :=0;_ef < _ac .Size ().Y ;_ef ++{_ae ,_ge ,_ff ,_ :=img1 .At (_dd ,_ef ).RGBA ();_fc ,_fg ,_ddd ,_ :=img2 .At (_dd ,_ef ).RGBA ();
if _ae !=_fc ||_ge !=_fg ||_ff !=_ddd {_bc ++;};};};_dbf :=float64 (_bc )/float64 (_ac .Dx ()*_ac .Dy ());if _dbf > 0.0001{_ab .Printf ("\u0064\u0069\u0066f \u0066\u0072\u0061\u0063\u0074\u0069\u006f\u006e\u003a\u0020\u0025\u0076\u0020\u0028\u0025\u0064\u0029\u000a",_dbf ,_bc );
return false ,nil ;};return true ,nil ;};func ComparePNGFiles (file1 ,file2 string )(bool ,error ){_fb ,_da :=HashFile (file1 );if _da !=nil {return false ,_da ;};_fa ,_da :=HashFile (file2 );if _da !=nil {return false ,_da ;};if _fb ==_fa {return true ,nil ;
};_cc ,_da :=ReadPNG (file1 );if _da !=nil {return false ,_da ;};_cgd ,_da :=ReadPNG (file2 );if _da !=nil {return false ,_da ;};if _cc .Bounds ()!=_cgd .Bounds (){return false ,nil ;};return CompareImages (_cc ,_cgd );};func ReadPNG (file string )(_cg .Image ,error ){_cab ,_ga :=_gf .Open (file );
if _ga !=nil {return nil ,_ga ;};defer _cab .Close ();return _cb .Decode (_cab );};func RunRenderTest (t *_gg .T ,pdfPath ,outputDir ,baselineRenderPath string ,saveBaseline bool ){_ed :=_c .TrimSuffix (_ce .Base (pdfPath ),_ce .Ext (pdfPath ));t .Run ("\u0072\u0065\u006e\u0064\u0065\u0072",func (_ggc *_gg .T ){_fgg :=_ce .Join (outputDir ,_ed );
_efe :=_fgg +"\u002d%\u0064\u002e\u0070\u006e\u0067";if _eg :=RenderPDFToPNGs (pdfPath ,0,_efe );_eg !=nil {_ggc .Skip (_eg );};for _bcc :=1;true ;_bcc ++{_dbc :=_ab .Sprintf ("\u0025s\u002d\u0025\u0064\u002e\u0070\u006eg",_fgg ,_bcc );_ced :=_ce .Join (baselineRenderPath ,_ab .Sprintf ("\u0025\u0073\u002d\u0025\u0064\u005f\u0065\u0078\u0070\u002e\u0070\u006e\u0067",_ed ,_bcc ));
if _ ,_cgdf :=_gf .Stat (_dbc );_cgdf !=nil {break ;};_ggc .Logf ("\u0025\u0073",_ced );if saveBaseline {_ggc .Logf ("\u0043\u006fp\u0079\u0069\u006eg\u0020\u0025\u0073\u0020\u002d\u003e\u0020\u0025\u0073",_dbc ,_ced );_cfc :=CopyFile (_dbc ,_ced );if _cfc !=nil {_ggc .Fatalf ("\u0045\u0052\u0052OR\u0020\u0063\u006f\u0070\u0079\u0069\u006e\u0067\u0020\u0074\u006f\u0020\u0025\u0073\u003a\u0020\u0025\u0076",_ced ,_cfc );
};continue ;};_ggc .Run (_ab .Sprintf ("\u0070\u0061\u0067\u0065\u0025\u0064",_bcc ),func (_fd *_gg .T ){_fd .Logf ("\u0043o\u006dp\u0061\u0072\u0069\u006e\u0067 \u0025\u0073 \u0076\u0073\u0020\u0025\u0073",_dbc ,_ced );_aed ,_edb :=ComparePNGFiles (_dbc ,_ced );
if _gf .IsNotExist (_edb ){_fd .Fatal ("\u0069m\u0061g\u0065\u0020\u0066\u0069\u006ce\u0020\u006di\u0073\u0073\u0069\u006e\u0067");}else if !_aed {_fd .Fatal ("\u0077\u0072\u006f\u006eg \u0070\u0061\u0067\u0065\u0020\u0072\u0065\u006e\u0064\u0065\u0072\u0065\u0064");
};});};});};