[TestMethod]
[TestCategory("Unit")]
public void FlipHorizontalCommand_NoActiveImage_CannotBeExecuted()
{
    SetupNoActiveImage();
    var canExecute = _vm.FlipHorizontalCommand.CanExecute(null);
    canExecute.Should().BeFalse();
}

[TestMethod]
[TestCategory("Unit")]
public void FlipVerticalCommand_NoActiveImage_CannotBeExecuted()
{
    SetupNoActiveImage();
    var canExecute = _vm.FlipVerticalCommand.CanExecute(null);
    canExecute.Should().BeFalse();
}

[TestMethod]
[TestCategory("Unit")]
public void RotateCommand_NoActiveImage_CannotBeExecuted()
{
    SetupNoActiveImage();
    var canExecute = _vm.RotateCommand.CanExecute(null);
    canExecute.Should().BeFalse();
}

[TestMethod]
[TestCategory("Unit")]
public void RemoveCommand_NoActiveImage_CannotBeExecuted()
{
    SetupNoActiveImage();
    var canExecute = _vm.RemoveCommand.CanExecute(null);
    canExecute.Should().BeFalse();
}

[TestMethod]
[TestCategory("Unit")]
public void FlipHorizontalCommand_ActiveImageAvailable_CanBeExecuted()
{
    SetupActiveImageAvailable();
    var canExecute = _vm.FlipHorizontalCommand.CanExecute(null);
    canExecute.Should().BeTrue();
}

[TestMethod]
[TestCategory("Unit")]
public void FlipVerticalCommand_ActiveImageAvailable_CanBeExecuted()
{
    SetupActiveImageAvailable();
    var canExecute = _vm.FlipVerticalCommand.CanExecute(null);
    canExecute.Should().BeTrue();
}

[TestMethod]
[TestCategory("Unit")]
public void RotateCommand_ActiveImageAvailable_CanBeExecuted()
{
    SetupActiveImageAvailable();
    var canExecute = _vm.RotateCommand.CanExecute(null);
    canExecute.Should().BeTrue();
}

[TestMethod]
[TestCategory("Unit")]
public void RemoveCommand_ActiveImageAvailable_CanBeExecuted()
{
    SetupActiveImageAvailable();
    var canExecute = _vm.RemoveCommand.CanExecute(null);
    canExecute.Should().BeTrue();
}

[TestMethod]
[TestCategory("Unit")]
public void FlipHorizontalCommand_ActiveImageAvailableButModificationsNotAllowed_CannotBeExecuted()
{
    SetupActiveImageButDisallowModifications();
    var canExecute = _vm.FlipHorizontalCommand.CanExecute(null);
    canExecute.Should().BeFalse();
}

[TestMethod]
[TestCategory("Unit")]
public void FlipVerticalCommand_ActiveImageAvailableButModificationsNotAllowed_CannotBeExecuted()
{
    SetupActiveImageButDisallowModifications();
    var canExecute = _vm.FlipVerticalCommand.CanExecute(null);
    canExecute.Should().BeFalse();
}

[TestMethod]
[TestCategory("Unit")]
public void RotateCommand_ActiveImageAvailableButModificationsNotAllowed_CannotBeExecuted()
{
    SetupActiveImageButDisallowModifications();
    var canExecute = _vm.RotateCommand.CanExecute(null);
    canExecute.Should().BeFalse();
}

[TestMethod]
[TestCategory("Unit")]
public void RemoveCommand_ActiveImageAvailableButModificationsNotAllowed_CannotBeExecuted()
{
    SetupActiveImageButDisallowModifications();
    var canExecute = _vm.RemoveCommand.CanExecute(null);
    canExecute.Should().BeFalse();
}