public void NullValueReturnsNull()
{
var converter = new ByteArrayToImageSourceConverter();
object value = null;
var ex = Record.Exception(() => value = converter.Convert(null, typeof(ImageSource), null, CurrentCulture));
Assert.Null(ex);
Assert.Null(value);
}
public void ByteArrayToImageSourceConverter()
{
var byteArray = new byte[] { 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20 };
var memoryStream = new MemoryStream(byteArray);
var expectedValue = ImageSource.FromStream(() => memoryStream);
var byteArrayToImageSourceConverter = new ByteArrayToImageSourceConverter();
var result = byteArrayToImageSourceConverter.Convert(byteArray, typeof(ByteArrayToImageSourceConverter), null, CultureInfo.CurrentCulture);
Assert.IsTrue(StreamEquals(GetStreamFromImageSource((ImageSource?)result), memoryStream));
}
public async Task AddImageCommand()
{
FileData filedata = await CrossFilePicker.Current.PickFile();
//Getting the filename and the data info from the image picked
FileName = filedata.FileName;
_imageData = filedata.DataArray;
//Convert from data info to image
ByteArrayToImageSourceConverter converter = new ByteArrayToImageSourceConverter();
//Image that will be displayed
ImgSource = converter.Convert(_imageData, null, null, culture: System.Globalization.CultureInfo.CurrentCulture);
}
public async Task ConvertedImageSourceReturnsSameImage()
{
var image = GetAvantiPointLogo();
var converter = new ByteArrayToImageSourceConverter();
StreamImageSource imageSource = null;
var ex = Record.Exception(() => imageSource = (StreamImageSource)converter.Convert(image, typeof(ImageSource), null, CurrentCulture));
Assert.Null(ex);
Assert.NotNull(imageSource);
var stream = await imageSource.Stream(CancellationToken.None);
var convertedStream = ReadFully(stream);
Assert.Equal(image, convertedStream);
}
public void InvalidConverterValuesReturnsNull(object value)
{
var byteArrayToImageSourceConverter = new ByteArrayToImageSourceConverter();
Assert.Throws <ArgumentException>(() => byteArrayToImageSourceConverter.Convert(value, typeof(ByteArrayToImageSourceConverter), null, CultureInfo.CurrentCulture));
}