public async Task UpdateHandle_NullArgument_ThrowsException()
{
// Arrange
var repository = new Mock <ISequenceNumberRepository>();
var target = new MaximumSequenceNumberCommandHandler(repository.Object);
var updateMaximumSequenceNumberCommand = (UpdateMaximumSequenceNumberCommand)null !;
// Act + Assert
await Assert
.ThrowsAsync <ArgumentNullException>(() => target.Handle(updateMaximumSequenceNumberCommand, CancellationToken.None))
.ConfigureAwait(false);
}
public async Task UpdateHandle_SequenceNumber_IsSaved()
{
// Arrange
const long sequenceNumber = 100;
var repository = new Mock <ISequenceNumberRepository>();
var target = new MaximumSequenceNumberCommandHandler(repository.Object);
// Act
var command = new UpdateMaximumSequenceNumberCommand(sequenceNumber);
await target.Handle(command, CancellationToken.None).ConfigureAwait(false);
// Assert
repository.Verify(x => x.AdvanceSequenceNumberAsync(It.Is <SequenceNumber>(s => s.Value == sequenceNumber)));
}
public async Task GetHandle_SequenceNumber_IsReturned()
{
// Arrange
const long expected = 170989;
var repository = new Mock <ISequenceNumberRepository>();
repository.Setup(x => x.GetMaximumSequenceNumberAsync())
.ReturnsAsync(new SequenceNumber(expected));
var target = new MaximumSequenceNumberCommandHandler(repository.Object);
// Act
var command = new GetMaximumSequenceNumberCommand();
var actual = await target.Handle(command, CancellationToken.None).ConfigureAwait(false);
// Assert
Assert.Equal(expected, actual);
}