public void SenderSelector_WhenAlwaysUnavailable_UseBackup()
{
// Setup
var senderFactory1Mock = new Mock<ISenderFactory>();
var senderFactory2Mock = new Mock<ISenderFactory>();
var senderSelector = new SenderSelector<DateTime>();
senderSelector.AddAlways(senderFactory1Mock.Object);
senderSelector.AddBackup(senderFactory2Mock.Object);
senderFactory1Mock.SetupGet(m => m.Available).Returns(false);
senderFactory1Mock.Setup(m => m.Sender()).Returns(new MockSender());
senderFactory2Mock.SetupGet(m => m.Available).Returns(true);
senderFactory2Mock.Setup(m => m.Sender()).Returns(new MockSender());
// Run & Assert
Assert.IsNotNull(senderSelector.ResolveSender());
Assert.IsNotNull(senderSelector.ResolveSender((object)DateTime.Now));
Assert.IsNotNull(senderSelector.ResolveSender<DateTime>(DateTime.Now));
senderFactory1Mock.Verify(m => m.Sender(), Times.Never);
senderFactory2Mock.Verify(m => m.Sender(), Times.AtLeastOnce);
}
public void SenderSelector_WhenConditionsUnavailable_UseBackup()
{
// Setup
var senderFactory1Mock = new Mock<ISenderFactory>();
var senderFactory2Mock = new Mock<ISenderFactory>();
var senderFactory3Mock = new Mock<ISenderFactory>();
var senderFactory4Mock = new Mock<ISenderFactory>();
var senderSelector = new SenderSelector<DateTime>();
senderSelector.AddWhen(d => d.Year == 2015, senderFactory1Mock.Object);
senderSelector.AddElse(senderFactory2Mock.Object);
senderSelector.AddBackup(senderFactory3Mock.Object);
senderSelector.AddBackup(senderFactory4Mock.Object);
senderFactory1Mock.SetupGet(m => m.Available).Returns(false);
senderFactory1Mock.Setup(m => m.Sender()).Returns(new MockSender());
senderFactory2Mock.SetupGet(m => m.Available).Returns(true);
senderFactory2Mock.Setup(m => m.Sender()).Returns(new MockSender());
senderFactory3Mock.SetupGet(m => m.Available).Returns(true);
senderFactory3Mock.Setup(m => m.Sender()).Returns(new MockSender());
senderFactory4Mock.SetupGet(m => m.Available).Returns(true);
senderFactory4Mock.Setup(m => m.Sender()).Returns(new MockSender());
// Run & Assert
Assert.IsNotNull(senderSelector.ResolveSender(new DateTime(2015, 1, 1)));
senderFactory1Mock.Verify(m => m.Sender(), Times.Never);
senderFactory2Mock.Verify(m => m.Sender(), Times.Never);
senderFactory3Mock.Verify(m => m.Sender(), Times.Once);
senderFactory4Mock.Verify(m => m.Sender(), Times.Never);
// Default to next backup after
senderFactory3Mock.SetupGet(m => m.Available).Returns(false);
Assert.IsNotNull(senderSelector.ResolveSender(new DateTime(2015, 1, 1)));
senderFactory1Mock.Verify(m => m.Sender(), Times.Never);
senderFactory2Mock.Verify(m => m.Sender(), Times.Never);
senderFactory3Mock.Verify(m => m.Sender(), Times.Once);
senderFactory4Mock.Verify(m => m.Sender(), Times.Once);
}
