public async Task Should_attach_attachment_when_command_have_attachment()
{
//arrange
var message = new AttachmentCommand();
var nextProcessor = new Mock <IMessageProcessor>();
var stream = new MemoryStream(Encoding.UTF8.GetBytes("this is a stream"));
var attachment = new MessageAttachment("test.txt", "text/plain", stream);
var stateHandler = new Mock <IMessageStateHandler <AttachmentCommand> >();
stateHandler.Setup(x => x.GetMessageAsync()).ReturnsAsync(message);
stateHandler.Setup(x => x.MessageProperties).Returns(new Dictionary <string, string> {
{ AttachmentUtility.AttachmentKey, "89BDF3DB-896C-448D-A84E-872CBA8DBC9F" }
});
var attachmentProvider = new Mock <IMessageAttachmentProvider>();
attachmentProvider.Setup(x => x.GetAttachmentAsync(AutoMessageMapper.GetQueueName <AttachmentCommand>(), It.IsAny <string>(), It.IsAny <CancellationToken>()))
.ReturnsAsync(attachment);
var middleware = new AttachmentMiddleware(attachmentProvider.Object);
//act
await middleware.ProcessAsync(stateHandler.Object, Mock.Of <IPipelineInformation>(), nextProcessor.Object, CancellationToken.None);
//assert
stream.CanRead.Should().BeFalse("It should have been disposed");
message.Attachment.Filename.Should().Be("test.txt");
message.Attachment.ContentType.Should().Be("text/plain");
nextProcessor.Verify(x => x.ProcessAsync(stateHandler.Object, CancellationToken.None), Times.Once);
}
public async Task Should_not_attach_attachments_for_other_commands()
{
//arrange
var message = new TestCommand();
var nextProcessor = new Mock <IMessageProcessor>();
var stateHandler = new Mock <IMessageStateHandler <TestCommand> >();
stateHandler.Setup(x => x.GetMessageAsync()).ReturnsAsync(message);
var attachmentProvider = new Mock <IMessageAttachmentProvider>();
attachmentProvider.Setup(x => x.GetAttachmentAsync(AutoMessageMapper.GetQueueName <TestCommand>(), It.IsAny <string>(), It.IsAny <CancellationToken>()))
.ReturnsAsync(default(IMessageAttachment));
var middleware = new AttachmentMiddleware(attachmentProvider.Object);
//act
await middleware.ProcessAsync(stateHandler.Object, Mock.Of <IPipelineInformation>(), nextProcessor.Object, CancellationToken.None);
//assert
attachmentProvider.Verify(x => x.GetAttachmentAsync(It.IsAny <string>(), It.IsAny <string>(), It.IsAny <CancellationToken>()), Times.Never);
nextProcessor.Verify(x => x.ProcessAsync(stateHandler.Object, CancellationToken.None), Times.Once);
}
public async Task Should_delete_attachment_when_finished()
{
//arrange
var message = new AttachmentCommand();
var nextProcessor = new Mock <IMessageProcessor>();
var stream = new MemoryStream(Encoding.UTF8.GetBytes("this is a stream"));
var attachment = new MessageAttachment("test.txt", "text/plain", stream);
var stateHandler = new Mock <IMessageStateHandler <AttachmentCommand> >();
stateHandler.Setup(x => x.GetMessageAsync()).ReturnsAsync(message);
stateHandler.Setup(x => x.MessageProperties).Returns(new Dictionary <string, string> {
{ AttachmentUtility.AttachmentKey, "89BDF3DB-896C-448D-A84E-872CBA8DBC9F" }
});
var attachmentProvider = new Mock <IMessageAttachmentProvider>();
attachmentProvider.Setup(x => x.GetAttachmentAsync(AutoMessageMapper.GetQueueName <AttachmentCommand>(), It.IsAny <string>(), It.IsAny <CancellationToken>()))
.ReturnsAsync(attachment);
var middleware = new AttachmentMiddleware(attachmentProvider.Object);
//act
await middleware.ProcessAsync(stateHandler.Object, nextProcessor.Object, CancellationToken.None);
//assert
attachmentProvider.Verify(x => x.DeleteAttachmentAsync(AutoMessageMapper.GetQueueName <AttachmentCommand>(), It.IsAny <string>(), It.IsAny <CancellationToken>()), Times.Once);
}