public async Task CreateAsync_should_throw_on_null_args()
{
Func <Task <DesktopBackgroundSettings> > action = () => DesktopBackgroundSettings.CreateAsync(null);
(await action.Should().ThrowExactlyAsync <ArgumentNullException>()).And.ParamName.Should()
.Be("registryReadService");
}
public async Task CreateAsync_should_map_background_types_correctly()
{
var fakeRegistry = new FakeRegistryService();
var registryValueToBackgroundKinds = new Dictionary <int, DesktopBackgroundKind>
{
[0] = DesktopBackgroundKind.Picture,
[1] = DesktopBackgroundKind.SolidColor,
[2] = DesktopBackgroundKind.Slideshow,
};
foreach (KeyValuePair <int, DesktopBackgroundKind> pair in registryValueToBackgroundKinds)
{
fakeRegistry.SetMockedValue(
RegistryBaseKey.CurrentUser,
@"Software\Microsoft\Windows\CurrentVersion\Explorer\Wallpapers",
"BackgroundType",
pair.Key);
DesktopBackgroundSettings settings = await DesktopBackgroundSettings.CreateAsync(fakeRegistry);
settings.BackgroundKind.Should().Be(pair.Value);
}
}