public void ThrowCOMExceptionIfDeviceNotConnected([Greedy] ScanningDevice sut)
{
sut.IsConnected = false;
sut.Invoking(x => x.GetImage(ScannerSettingsCustomization.SupportedImageFormat))
.Should().Throw <COMException>();
sut.Images.Should().BeEmpty();
}
public void EmptyImagesCollection([Frozen] IList <byte[]> images, ScanningDevice sut)
{
sut.Images = images;
sut.Images
.Should().NotBeEmpty()
.And.BeEquivalentTo(images);
sut.ClearImages();
sut.Images
.Should().NotBeNull()
.And.BeEmpty();
}
public void RaiseIsImagingPropertyChanged([Greedy] ScanningDevice sut)
{
// IsImaging should only be true during the operation of GetImage()
sut.IsImaging.Should().BeFalse();
using (var monitoredSubject = sut.Monitor())
{
monitoredSubject.Subject.GetImage(ScannerSettingsCustomization.SupportedImageFormat);
monitoredSubject.Should().RaisePropertyChangeFor(x => x.IsImaging);
}
sut.IsImaging.Should().BeFalse();
}
public void ThrowIfDeviceInstanceExists(
[Frozen] ImagingDeviceConfig deviceConfig,
[Frozen] ScannerSettings settings,
[Frozen, CollectionSize(1)] IEnumerable <ScannerSettings> _,
[Greedy] ScanningDevices sut)
{
var existingInstance = new ScanningDevice(settings, deviceConfig);
sut.Invoking(x => x.AddDevice(existingInstance))
.Should().Throw <ArgumentException>();
sut.Devices.Should()
.HaveCount(1)
.And.OnlyHaveUniqueItems()
.And.Contain(i => i.DeviceID == existingInstance.DeviceID);
}
public void ContainUniqueDevices(
ScanningDevice device,
[Frozen] ImagingDeviceConfig deviceConfig,
[Frozen, CollectionSize(5)] IEnumerable <ScannerSettings> scannerSettings,
[Greedy] ScanningDevices sut)
{
var scanningDevices = scannerSettings.Select(x => new ScanningDevice(x, deviceConfig));
sut.AddDevice(device);
sut.Devices.Should()
.HaveCount(6)
.And.OnlyHaveUniqueItems()
.And.Contain(scanningDevices)
.And.Contain(i => i.DeviceID == device.DeviceID);
}
public void ThrowIfImageFormatNotSupported([Greedy] ScanningDevice sut)
{
sut.Invoking(x => x.GetImage(IImagingDevice.ImageFormat.Gif))
.Should().Throw <ArgumentException>();
sut.Images.Should().BeEmpty();
}
public void ReturnImagesForSupportedFormat([Frozen] IEnumerable <byte[]> images, [Greedy] ScanningDevice sut)
{
sut.GetImage(ScannerSettingsCustomization.SupportedImageFormat);
sut.Images.Count.Should().Be(images.Count());
foreach (var(image, deviceImage) in Enumerable.Zip(images, sut.Images))
{
// Image data won't match exactly because headers will differ due to conversion
image.Should().IntersectWith(deviceImage);
}
}
public void InitializeAllPropertiesGreedy([Greedy] ScanningDevice sut)
{
sut.AssertAllPropertiesAreNotDefault();
sut.IsConnected.Should().BeTrue();
sut.IsImaging.Should().BeFalse();
}
public void EqualSettingsHash([Frozen] ScannerSettings settings, ScanningDevice sut)
{
var result = sut.GetHashCode();
result.Should().Be(settings.Id.GetHashCode());
}
public void BeEquivalentToClone([Frozen] ScannerSettings _, ScanningDevice sut, ScanningDevice clone) => sut.Equals(clone).Should().BeTrue();
