• Extension Model
• Intercepting Invocations
• Keeping State in Extensions
• Parameter Resolution
• Pre-Interrupt Callback
• Providing Invocation Contexts for Class Templates
• Providing Invocation Contexts for Test Templates
• Relative Execution Order of User Code and Extensions
• Supported Utilities in Extensions
• Test Instance Factories
• Test Instance Post-processing
• Test Instance Pre-construct Callback
• Test Instance Pre-destroy Callback
• Test Lifecycle Callbacks
• Test Result Processing