public void Constructor()
{
ConcreteImageProcessorViewModel viewModel = new ConcreteImageProcessorViewModel();
Assert.Equal(0, viewModel.Current);
Assert.Equal(100, viewModel.Total);
}
public void GetFilters_None()
{
ConcreteImageProcessorViewModel viewModel = new ConcreteImageProcessorViewModel();
IList <Filter> filters = viewModel.GetFilters();
Assert.Equal(0, filters.Count);
}
public void GetPropertyInfo()
{
ConcreteImageProcessorViewModel viewModel = new ConcreteImageProcessorViewModel();
PropertyInfo propertyInfo = viewModel.GetPropertyInfo(viewModel, model => model.Enabled);
Assert.Equal(typeof(bool), propertyInfo.PropertyType);
}
public void GetPropertyInfo_WhenParameterIsMethod()
{
ConcreteImageProcessorViewModel viewModel = new ConcreteImageProcessorViewModel();
try
{
viewModel.GetPropertyInfo(viewModel, model => model.GetFilters());
Assert.False(true, "exception should have been thrown");
}
catch (ArgumentException exception)
{
Assert.Equal("Expression 'model => model.GetFilters()' refers to a method, not a property.",
exception.Message);
}
}
public void GetFilters_All()
{
ConcreteImageProcessorViewModel viewModel = new ConcreteImageProcessorViewModel
{
Deskew = true, AutoCrop = true, Enhance = true, Greyscale = true, Sharpen = true, Trim = true
};
IList <Filter> filters = viewModel.GetFilters();
Assert.Equal(8, filters.Count);
Assert.Equal(typeof(Deskew), filters[0].GetType());
Assert.Equal(60, ((Deskew)filters[0]).Threshold);
Assert.Equal(typeof(AutoCrop), filters[1].GetType());
Assert.Equal(typeof(Enhance), filters[2].GetType());
Assert.Equal(typeof(Grayscale), filters[3].GetType());
Assert.Equal(typeof(Sharpen), filters[4].GetType());
Assert.Equal(typeof(Trim), filters[5].GetType());
Assert.Equal(typeof(Deskew), filters[6].GetType());
Assert.Equal(40, ((Deskew)filters[6]).Threshold);
Assert.Equal(typeof(AutoCrop), filters[7].GetType());
}
