# NServiceBus Testing Upgrade Version 6 to 7


## Upgrade to NServiceBus Version 7

NServiceBus.Testing requires NServiceBus Version 7.

When upgrading to NServiceBus.Testing Version 7, projects will also require an upgrade to [NServiceBus Version 7](/nservicebus/upgrades/6to7/index.md).

## AssertSagaCompletionIs

The `AssertSagaCompletionIs` method has been obsoleted and replaced by `ExpectSagaCompleted` and `ExpectSagaNotCompleted`.

```csharp
// For Testing version 7.x
Test.Saga<MySaga>()
    .ExpectSagaCompleted()
    .WhenHandling<CompleteSagaMessage>();

// For Testing version 6.x
Test.Saga<MySaga>()
    .WhenHandling<CompleteSagaMessage>()
    .AssertSagaCompletionIs(true);
```

Note the `ExpectSagaCompleted` and `ExpectSagaNotCompleted` expectations must be placed **before** a `When` method, similar to other expectation methods.

## ExpectHandleCurrentMessageLater

The `ExpectHandleCurrentMessageLater` method has been obsoleted as `IMessageHandlerContext.HandleCurrentMessageLater()` has been deprecated in NServiceBus Version 7.

## WhenHandling

An overload of the `WhenHandling` method has been added, which accepts a preconstructed message.

```csharp
// For Testing version 7.x
var message = new CompleteSagaMessage();

Test.Saga<MySaga>()
    .ExpectSagaCompleted()
    .WhenHandling(message);

// For Testing version 6.x
var message = new CompleteSagaMessage();

Test.Saga<MySaga>()
    .WhenHandling<CompleteSagaMessage>(msg => { /* msg has already been created */ })
    .AssertSagaCompletionIs(true);
```

## Fluent-style tests deprecated

The fluent-style testing API has been deprecated. See the [upgrade guide](/nservicebus/upgrades/testing-7to8.md) for help on migrating to the Arrange-Act-Assert (AAA) test API.