public HostIndexer(IHostIndexManager hostIndexManager, IFunctionIndexManager functionIndexManager,
IFunctionIndexVersionManager functionIndexVersionManager)
{
_hostIndexManager = hostIndexManager;
_functionIndexManager = functionIndexManager;
_functionIndexVersionManager = functionIndexVersionManager;
}
private static HostIndexer CreateProductUnderTest(IHostIndexManager hostIndexManager,
IFunctionIndexManager functionIndexManager)
{
IFunctionIndexVersionManager functionIndexVersionManager = CreateStubFunctionIndexVersionManager();
return(CreateProductUnderTest(hostIndexManager, functionIndexManager, functionIndexVersionManager));
}
public HostIndexer(IHostIndexManager hostIndexManager, IFunctionIndexManager functionIndexManager,
IFunctionIndexVersionManager functionIndexVersionManager)
{
_hostIndexManager = hostIndexManager;
_functionIndexManager = functionIndexManager;
_functionIndexVersionManager = functionIndexVersionManager;
}
private static HostIndexer CreateProductUnderTest(IFunctionIndexVersionManager functionIndexVersionManager)
{
IHostIndexManager hostIndexManager = CreateStubHostIndexManager(existingSnapshot: null,
persistSucceeds: false);
IFunctionIndexManager functionIndexManager = CreateStubFunctionIndexManager();
return(CreateProductUnderTest(hostIndexManager, functionIndexManager, functionIndexVersionManager));
}
private static void AddFunctionToIndex(IFunctionIndexManager functionIndexManager, string hostId,
string hostFunctionId, DateTimeOffset hostVersion)
{
Assert.True(functionIndexManager.CreateOrUpdateIfLatest(new FunctionSnapshot
{
Id = hostId + "_" + hostFunctionId,
HostFunctionId = hostFunctionId,
QueueName = hostId,
HostVersion = hostVersion
}));
}
public void ProcessHostStarted_IfHostConcurrentlyUpdated_DeletesKnownFunctionsIfLatest()
{
// Arrange
const string hostId = "host";
string[] originalFunctionIds = new string[] { "a", "b" };
string[] finalFunctionIds = new string[] { "b", "d" };
IHostIndexManager concurrentlyRemoveFunctionsHostIndexManager = CreateStubHostIndexManager(
existingSnapshot: CreateHostSnapshot(DateTimeOffset.MaxValue, finalFunctionIds), persistSucceeds: true);
IFunctionIndexManager functionIndexManager = CreateFakeFunctionIndexManager();
DateTimeOffset earlierHostVersion = DateTimeOffset.MinValue;
AddFunctionToIndex(functionIndexManager, hostId, originalFunctionIds[0], earlierHostVersion);
AddFunctionToIndex(functionIndexManager, hostId, originalFunctionIds[1], earlierHostVersion);
IHostIndexer product = CreateProductUnderTest(concurrentlyRemoveFunctionsHostIndexManager,
functionIndexManager);
HostStartedMessage message = new HostStartedMessage
{
SharedQueueName = hostId,
EnqueuedOn = DateTimeOffset.Now,
Functions = new FunctionDescriptor[]
{
new FunctionDescriptor {
Id = originalFunctionIds[0]
},
new FunctionDescriptor {
Id = originalFunctionIds[1]
},
new FunctionDescriptor {
Id = "c"
},
new FunctionDescriptor {
Id = "d"
}
}
};
// Act
product.ProcessHostStarted(message);
// Assert
IEnumerable <VersionedMetadata> functions = functionIndexManager.List(hostId);
Assert.NotNull(functions); // Guard
IEnumerable <string> functionIds = functions.Select(f => f.Id).ToArray();
Assert.Equal(finalFunctionIds, functionIds);
}
public void ProcessHostStarted_UpdatesExistingFunctionsIfLatest()
{
// Arrange
const string hostId = "host";
DateTimeOffset expectedVersion = DateTimeOffset.Now;
string[] expectedFunctionIds = new string[] { "a", "b", "c" };
IHostIndexManager hostIndexManager = CreateStubHostIndexManager(
CreateHostSnapshot(expectedVersion, expectedFunctionIds), persistSucceeds: true);
IFunctionIndexManager functionIndexManager = CreateFakeFunctionIndexManager();
DateTimeOffset earlierHostVersion = DateTimeOffset.MinValue;
AddFunctionToIndex(functionIndexManager, hostId, expectedFunctionIds[0], earlierHostVersion);
AddFunctionToIndex(functionIndexManager, hostId, expectedFunctionIds[1], earlierHostVersion);
AddFunctionToIndex(functionIndexManager, hostId, expectedFunctionIds[2], earlierHostVersion);
IHostIndexer product = CreateProductUnderTest(hostIndexManager, functionIndexManager);
HostStartedMessage message = new HostStartedMessage
{
SharedQueueName = hostId,
EnqueuedOn = expectedVersion,
Functions = new FunctionDescriptor[]
{
new FunctionDescriptor {
Id = expectedFunctionIds[0]
},
new FunctionDescriptor {
Id = expectedFunctionIds[1]
},
new FunctionDescriptor {
Id = expectedFunctionIds[2]
}
}
};
// Act
product.ProcessHostStarted(message);
// Assert
IEnumerable <VersionedMetadata> functions = functionIndexManager.List(hostId);
Assert.NotNull(functions); // Guard
IEnumerable <string> functionIds = functions.Select(f => f.Id).ToArray();
Assert.Equal(expectedFunctionIds, functionIds);
IEnumerable <DateTimeOffset> versions = functions.Select(f => f.Version).ToArray();
Assert.Equal(new DateTimeOffset[] { expectedVersion, expectedVersion, expectedVersion }, versions);
}
public void ProcessHostStarted_IfHostPreviouslyRemovedButProcessingAborted_DeletesKnownFunctionsIfLatest()
{
// Arrange
const string hostId = "host";
DateTimeOffset hostVersion = DateTimeOffset.Now;
string[] previouslyProcessedFunctionIds = new string[] { "a", "b", "c" };
IHostIndexManager concurrentlyRemoveFunctionsHostIndexManager = CreateStubHostIndexManager(
existingSnapshot: null, persistSucceeds: false);
IFunctionIndexManager functionIndexManager = CreateFakeFunctionIndexManager();
AddFunctionToIndex(functionIndexManager, hostId, previouslyProcessedFunctionIds[0], hostVersion);
AddFunctionToIndex(functionIndexManager, hostId, previouslyProcessedFunctionIds[1], hostVersion);
AddFunctionToIndex(functionIndexManager, hostId, previouslyProcessedFunctionIds[2], hostVersion);
IHostIndexer product = CreateProductUnderTest(concurrentlyRemoveFunctionsHostIndexManager,
functionIndexManager);
HostStartedMessage message = new HostStartedMessage
{
SharedQueueName = hostId,
EnqueuedOn = hostVersion,
Functions = new FunctionDescriptor[]
{
new FunctionDescriptor {
Id = previouslyProcessedFunctionIds[0]
},
new FunctionDescriptor {
Id = previouslyProcessedFunctionIds[1]
},
new FunctionDescriptor {
Id = previouslyProcessedFunctionIds[2]
}
}
};
// Act
product.ProcessHostStarted(message);
// Assert
IEnumerable <VersionedMetadata> functions = functionIndexManager.List(hostId);
Assert.NotNull(functions); // Guard
IEnumerable <string> functionIds = functions.Select(f => f.Id).ToArray();
Assert.Equal(new string[0], functionIds);
}
private static HostIndexer CreateProductUnderTest(IHostIndexManager hostIndexManager,
IFunctionIndexManager functionIndexManager, IFunctionIndexVersionManager functionIndexVersionManager)
{
return new HostIndexer(hostIndexManager, functionIndexManager, functionIndexVersionManager);
}
private static HostIndexer CreateProductUnderTest(IHostIndexManager hostIndexManager,
IFunctionIndexManager functionIndexManager)
{
IFunctionIndexVersionManager functionIndexVersionManager = CreateStubFunctionIndexVersionManager();
return CreateProductUnderTest(hostIndexManager, functionIndexManager, functionIndexVersionManager);
}
private static void AddFunctionToIndex(IFunctionIndexManager functionIndexManager, string hostId,
string hostFunctionId, DateTimeOffset hostVersion)
{
Assert.True(functionIndexManager.CreateOrUpdateIfLatest(new FunctionSnapshot
{
Id = hostId + "_" + hostFunctionId,
HostFunctionId = hostFunctionId,
QueueName = hostId,
HostVersion = hostVersion
}));
}
private static HostIndexer CreateProductUnderTest(IHostIndexManager hostIndexManager,
IFunctionIndexManager functionIndexManager, IFunctionIndexVersionManager functionIndexVersionManager)
{
return(new HostIndexer(hostIndexManager, functionIndexManager, functionIndexVersionManager));
}
