public void ExecuteAsync_IfBlobHasBeenDeleted_ReturnsSuccessResult()
{
// Arrange
var account = new FakeAccount();
string functionId = "FunctionId";
// by default, Blob doesn't exist in the fake account, so it's as if it were deleted.
BlobQueueTriggerExecutor product = CreateProductUnderTest();
BlobQueueRegistration registration = new BlobQueueRegistration
{
BlobClient = account.CreateCloudBlobClient(),
Executor = CreateDummyTriggeredFunctionExecutor()
};
product.Register(functionId, registration);
var message = CreateMessage(functionId, "OriginalETag");
// Act
Task <FunctionResult> task = product.ExecuteAsync(message, CancellationToken.None);
// Assert
Assert.True(task.Result.Succeeded);
}
public void ExecuteAsync_IfBlobHasChanged_NotifiesWatcherAndReturnsSuccessResult()
{
var account = new FakeAccount();
// Arrange
string functionId = "FunctionId";
SetEtag(account, TestContainerName, TestBlobName, "NewETag");
Mock <IBlobWrittenWatcher> mock = new Mock <IBlobWrittenWatcher>(MockBehavior.Strict);
mock.Setup(w => w.Notify(It.IsAny <ICloudBlob>()))
.Verifiable();
IBlobWrittenWatcher blobWrittenWatcher = mock.Object;
BlobQueueTriggerExecutor product = CreateProductUnderTest(null, blobWrittenWatcher);
BlobQueueRegistration registration = new BlobQueueRegistration
{
BlobClient = account.CreateCloudBlobClient(),
Executor = CreateDummyTriggeredFunctionExecutor()
};
product.Register(functionId, registration);
var message = CreateMessage(functionId, "OriginalETag");
// Act
Task <FunctionResult> task = product.ExecuteAsync(message, CancellationToken.None);
// Assert
task.WaitUntilCompleted();
mock.Verify();
Assert.True(task.Result.Succeeded);
}
// Set the etag on the specified blob
private static void SetEtag(FakeAccount account, string containerName, string blobName, string etag)
{
Mock <ICloudBlob> mockBlob = new Mock <ICloudBlob>(MockBehavior.Strict);
mockBlob.SetupGet(b => b.Properties).Returns(new BlobProperties().SetEtag(etag));
mockBlob.SetupGet(b => b.Name).Returns(blobName);
account.SetBlob(containerName, blobName, mockBlob.Object);
}
public async Task ExecuteAsync_IfBlobIsUnchanged_CallsInnerExecutor()
{
// Arrange
var account = new FakeAccount();
string functionId = "FunctionId";
string matchingETag = "ETag";
Guid expectedParentId = Guid.NewGuid();
var message = CreateMessage(functionId, matchingETag);
SetEtag(account, TestContainerName, TestBlobName, matchingETag);
IBlobCausalityReader causalityReader = CreateStubCausalityReader(expectedParentId);
FunctionResult expectedResult = new FunctionResult(true);
Mock <ITriggeredFunctionExecutor> mock = new Mock <ITriggeredFunctionExecutor>(MockBehavior.Strict);
mock.Setup(e => e.TryExecuteAsync(It.IsAny <TriggeredFunctionData>(), It.IsAny <CancellationToken>()))
.Callback <TriggeredFunctionData, CancellationToken>(
(mockInput, mockCancellationToken) =>
{
Assert.Equal(expectedParentId, mockInput.ParentId);
var resultBlob = (ICloudBlob)mockInput.TriggerValue;
Assert.Equal(TestBlobName, resultBlob.Name);
})
.ReturnsAsync(expectedResult)
.Verifiable();
ITriggeredFunctionExecutor innerExecutor = mock.Object;
BlobQueueTriggerExecutor product = CreateProductUnderTest(causalityReader);
BlobQueueRegistration registration = new BlobQueueRegistration
{
BlobClient = account.CreateCloudBlobClient(),
Executor = innerExecutor
};
product.Register(functionId, registration);
// Act
FunctionResult result = await product.ExecuteAsync(message, CancellationToken.None);
// Assert
Assert.Same(expectedResult, result);
mock.Verify();
}
public void ExecuteAsync_IfInnerExecutorFails_ReturnsFailureResult()
{
// Arrange
var account = new FakeAccount();
string functionId = "FunctionId";
string matchingETag = "ETag";
SetEtag(account, TestContainerName, TestBlobName, matchingETag);
IBlobCausalityReader causalityReader = CreateStubCausalityReader();
FunctionResult expectedResult = new FunctionResult(false);
Mock <ITriggeredFunctionExecutor> mock = new Mock <ITriggeredFunctionExecutor>(MockBehavior.Strict);
mock.Setup(e => e.TryExecuteAsync(
It.IsAny <TriggeredFunctionData>(), It.IsAny <CancellationToken>()))
.ReturnsAsync(expectedResult)
.Verifiable();
BlobQueueTriggerExecutor product = CreateProductUnderTest(causalityReader);
ITriggeredFunctionExecutor innerExecutor = mock.Object;
BlobQueueRegistration registration = new BlobQueueRegistration
{
BlobClient = account.CreateCloudBlobClient(),
Executor = innerExecutor
};
product.Register(functionId, registration);
var message = CreateMessage(functionId, matchingETag);
// Act
Task <FunctionResult> task = product.ExecuteAsync(message, CancellationToken.None);
// Assert
Assert.False(task.Result.Succeeded);
}
