# Package io.vertx.junit5

- Interface Summary
  Interface | Description
  --- | ---
  Checkpoint | A test completion checkpoint, flagging it advances towards the test context completion.
  ParameterClosingConsumer<T> | A consumer to close extension parameters, like closing a Vert.x context, a web client, etc.
  VertxExtensionParameterProvider<T> | A `VertxExtension` test method parameter provider service provider interface.
  VertxTestContext.ExecutionBlock | Interface for an executable block of assertion code.

- Class Summary
  Class | Description
  --- | ---
  RunTestOnContext | An extension that runs tests on a Vert.x context.
  ScopedObject<T> | A parameter as an object with a scope and that can be closed when the scope exits.
  VertxExtension | JUnit 5 Vert.x extension that allows parameter injection as well as an automatic lifecycle on the `VertxTestContext` instance.
  VertxParameterProvider |
  VertxTestContext | A test context to wait on the outcomes of asynchronous operations.
  VertxTestContextParameterProvider | Vert.x test context parameter provider holder class.

- Annotation Types Summary
  Annotation Type | Description
  --- | ---
  Timeout | Specify how long `VertxTestContext.awaitCompletion(long, TimeUnit)` waits before timing out.

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