// save an image on the disc
public Boolean save(Image img)
{
// get the path if exists
String path = _filename.getFullPath();
if (path == null)
{
return(false);
}
// choose the right format
ImageFormat format = null;
if (_filename.getFormat() == ".png")
{
format = ImageFormat.Png;
}
else
{
format = ImageFormat.Jpeg;
}
// save the image in the right place, at the right format
try
{
System.Diagnostics.Trace.WriteLine(path);
img.Save(path, format);
return(true);
}
catch (Exception)
{
return(false);
}
}
[TestMethod] // control the file format's methods
public void fileFormat()
{
Boolean result = true;
String validFormat = ".jpeg";
// try to set an invalid format
result = _filenameManipulation.setFormat(".docx");
Assert.AreEqual(false, result);
Assert.AreEqual(".jpg", _filenameManipulation.getFormat());
// set a valid format
result = _filenameManipulation.setFormat(validFormat);
Assert.AreEqual(true, result);
Assert.AreEqual(validFormat, _filenameManipulation.getFormat());
// set invalid format, previous format should stay
result = _filenameManipulation.setFormat(".xlsx");
Assert.AreEqual(false, result);
Assert.AreEqual(validFormat, _filenameManipulation.getFormat());
}
public UnitTest_imageManipulation()
{
_path = System.IO.Directory.GetCurrentDirectory() + "\\..\\..\\images";
// instanciation for successfull usage jpeg
_goodFilename = Substitute.For <IFilenameManipulation>();
_goodFilename.getFolder().Returns(_path);
_goodFilename.getFullPath().Returns(_path + "\\new image - no filter.jpg");
_goodFilename.getFormat().Returns(".jpg");
// instanciation for successfull usage png
_goodFilenamePng = Substitute.For <IFilenameManipulation>();
_goodFilenamePng.getFolder().Returns(_path);
_goodFilenamePng.getFullPath().Returns(_path + "\\new image - no filter.jpg");
_goodFilenamePng.getFormat().Returns(".png");
// instanciation for unsuccessful usage
_badFilename = Substitute.For <IFilenameManipulation>();
_badFilename.getFolder().Returns("unexisting path");
_badFilename.getFullPath().Returns <Object>(null);
// instanciation for existing image
_existingFilename = Substitute.For <IFilenameManipulation>();
_existingFilename.getFolder().Returns(_path);
_existingFilename.getFullPath().Returns(_path + "\\a.jpg");
// instanciation for existing but corrupted image
_existingBadFilename = Substitute.For <IFilenameManipulation>();
_existingBadFilename.getFolder().Returns(_path);
_existingBadFilename.getFullPath().Returns(_path + "\\hi.txt");
_imageGood = new ImageManipulation(_goodFilename);
_imageGoodPng = new ImageManipulation(_goodFilenamePng);
_imageBad = new ImageManipulation(_badFilename);
_imageExisting = new ImageManipulation(_existingFilename);
_imageBadExisting = new ImageManipulation(_existingBadFilename);
}
