public void TestConvertNullOrWhitespace()
{
// set up
var converter = new SvgImageSourceTypeConverter();
// run + check
var imageSource1 = converter.ConvertFromInvariantString(null);
var imageSource2 = converter.ConvertFromInvariantString(string.Empty);
// check
Assert.IsNull(imageSource1, "null value must be converted to null ImageSource");
Assert.IsNull(imageSource2, "empty value must be converted to null ImageSource");
}
public void TestConvertFromSvgImageText()
{
// set up
var converter = new SvgImageSourceTypeConverter();
// run
string svgImageText = SvgTestImages.TestSvgImageText;
var imageSource = converter.ConvertFromInvariantString(svgImageText);
// check
Assert.IsNotNull(imageSource, "non-null ImageSource must have been returned");
Assert.IsInstanceOf <UriImageSource>(imageSource, "must be an URI image source");
}
public void TestConvertFromResourceUri()
{
// set up
var converter = new SvgImageSourceTypeConverter();
// run
string resourceUri = $"resource://{SvgTestImages.ResourcePathColibriSvg}";
var imageSource = converter.ConvertFromInvariantString(resourceUri);
// check
Assert.IsNotNull(imageSource, "non-null ImageSource must have been returned");
Assert.IsInstanceOf <StreamImageSource>(imageSource, "must be a stream image source");
}
public void TestConvertFromFilename()
{
// set up
var converter = new SvgImageSourceTypeConverter();
// run
string filePath = "Assets/colibri.svg";
var imageSource = converter.ConvertFromInvariantString(filePath);
// check
Assert.IsNotNull(imageSource, "non-null ImageSource must have been returned");
Assert.IsInstanceOf <FileImageSource>(imageSource, "must be a file image source");
}
public void TestConvertFromInvalidDataUri()
{
// set up
var converter = new SvgImageSourceTypeConverter();
// run + check
string dataUri = SvgConstants.DataUriPlainPrefix +
new string('-', 65536);
Assert.Throws <FormatException>(
() => converter.ConvertFromInvariantString(dataUri),
"must throw format exception on invalid URI");
}
public void TestConvertFromDataUriBase64()
{
// set up
var converter = new SvgImageSourceTypeConverter();
// run
string dataUri = SvgConstants.DataUriBase64Prefix +
SvgTestImages.EncodeBase64(SvgTestImages.TestSvgImageText);
var imageSource = converter.ConvertFromInvariantString(dataUri);
// check
Assert.IsNotNull(imageSource, "non-null ImageSource must have been returned");
Assert.IsInstanceOf <UriImageSource>(imageSource, "must be an URI image source");
}