// Return a bitmap with the correct filter selected on it
public Bitmap ApplyFilter(Bitmap selectedSource, IInterfaceFilter ifilter)
{
// Bitmap where the filter will apply
Bitmap bitmapApplyFilter = null;
try {
// Get the name of the filter selected
switch (ifilter.GetFilterName())
{
// None : The user don't want any filter on the bitmap. Get the original bitmap
case "None":
bitmapApplyFilter = selectedSource;
break;
// Rainbow : apply the Rainbow filter on the bitmap
case "Rainbow":
bitmapApplyFilter = ifilter.RainbowFilter(selectedSource);
break;
// Black and White : apply the Black and white filter on the bitmap
case "Black and White":
bitmapApplyFilter = ifilter.BlackAndWhiteFilter(selectedSource);
break;
}
}
catch (Exception e)
{
// If there is any exception, return null
Console.WriteLine(e);
bitmapApplyFilter = null;
}
// return the bitmap with the filter selected
return(bitmapApplyFilter);
}
public void TestFilter_GetSetFilterName()
{
// Substitute of the interface Filter
var filterSub = Substitute.For <IInterfaceFilter>();
// Give a new Name to the filter
string newName = "Rainbow";
// Give to the filterSub the new name
filterSub.GetFilterName().Returns <string>(newName);
// Set the filter with the new name
iFilter.SetFilterName(newName);
// Check if the names are equals
Assert.AreEqual(iFilter.GetFilterName(), filterSub.GetFilterName());
}