anchor.diff:        ?config(zReal, Config),
         ?config(zImaginary, Config) }.
   
  -testMakeDataFile(_Config) ->
  +testMakeData(_Config) ->
       %% example config
  -    FractalImageFileName = "./testMakeDataFile.png",  %image file created
  -    DataFileName         = "./testMakeDataFile.erl.txt",  %put data here
  +    FractalImageFileName = "./testMakeData.png",  %image file created
  +    DataFileName         = "./testMakeData.erl.txt",  %put data here
       ConfigMap = #{ fractalAlg => julian,  % Fractal Algorithm is julian
                      imageFileName => FractalImageFileName,
                      dataFileName         => DataFileName,
  
positive.code:     ConfigMap = #{ fractalAlg => julian,  % Fractal Algorithm is julian
         imageFileName => './EolTest.png',  %image file created
         width => 5, % width=10
         height => 5, 
         cReal => 0.5, % real portion of C0
         cImaginary => -0.5, % imaginary portion of C0
         zReal => -0.1, %real portion of Z0 (don't care for Julian)
  
negative.code:                    yImaginaryHigh => 3.0,
                     bailoutThreshold => 4,
                     maxIterationThreshold => 11 },
  
      %% reference test data
      RefData = [[0,0,0,0,0,0,0,0,0,0],
                 [0,0,0,1,1,1,0,0,0,0],
                 [0,0,1,3,4,1,1,0,0,0],
                 [0,1,2,4,10,3,1,1,0,0],
                 [0,1,1,3,5,3,1,1,0,0],
                 [0,1,1,3,10,4,2,1,0,0],
                 [0,0,1,1,4,3,1,0,0,0],
                 [0,0,0,1,1,1,0,0,0,0],
                 [0,0,0,0,0,0,0,0,0,0],
                 [0,0,0,0,0,0,0,0,0,0]],
      RefFileSize = 150,
      RefPngData = <<137,80,78,71,13,10,26,10,0,0,0,13,73,72,68,82,0,0,0,10,
                         0,0,0,10,8,3,0,0,0,186,236,63,143,0,0,0,36,80,76,84,69,
                         255,255,255,0,255,255,0,0,255,255,0,0,0,255,0,255,255,
                         0,210,180,140,240,128,128,255,165,0,128,128,0,255,0,
                         255,0,0,0,205,64,91,207,0,0,0,45,73,68,65,84,120,156,
                         99,96,64,1,140,140,140,48,22,51,11,148,205,200,196,194,
                         197,12,97,51,50,50,179,34,152,92,44,76,80,21,140,44,
                         204,140,24,38,96,1,0,20,175,0,86,186,174,33,152,0,0,0,
                         0,73,69,78,68,174,66,96,130>>,
  
      %% create data 
      RowData = simpleFractal:computeFractalData( ConfigMap ),
  
      %% is it right data? (compare computed data to reference data)
      RefData = RowData,
  
      %% make png
      simpleFractal:makePngFromData(RowData, ConfigMap),
  
      %% is png right size?
      { ok, { file_info, OutputFileSize, _reg,_rw,_t1,_t2,_t3,_,_,_,_,_,_,_} } =
              file:read_file_info(FractalImageFileName),
      RefFileSize  = OutputFileSize,
  
      %% is png right content?
      { ok, RefPngData} = file:read_file(FractalImageFileName),
  
  
  
  
      ok.
  
  testMakeDataFile(_Config) ->
      %% example config
      FractalImageFileName = "./testMakeDataFile.png",  %image file created
      DataFileName         = "./testMakeDataFile.erl.txt",  %put data here
      ConfigMap = #{ fractalAlg => julian,  % Fractal Algorithm is julian
                     imageFileName => FractalImageFileName,
                     dataFileName         => DataFileName,
                     colorAlg => simplest,  % 0-11 map to colors
                     width => 10,           % width=10
                     height => 10,          % height=10
                     cReal => 0.5,          % real portion of C0
                     cImaginary => -0.5,    % imaginary portion of C0
                     zReal => -0.1,         % real portion of Z0 (na Julian)
                     zImaginary => -0.1,    % imaginary portion of Z0 (na Julian)
                     xRealRight => 3.0,
                     xRealLeft => -3.0,
                     yImaginaryLow => -3.0,
                     yImaginaryHigh => 3.0,
                     bailoutThreshold => 4,
                     maxIterationThreshold => 11 },
  
      %% reference test data
      RefData = [ [0,0,0,0,0,0,0,0,0,0],
                  [0,0,0,0,0,0,0,0,0,0],
  