Spring Boot 测试错误：java.lang.IllegalStateException: Failed to load ApplicationContext

This error message indicates a problem loading the application context during a test, specifically caused by a null property source. The property source is crucial for providing configuration properties to the application context.

To fix this, ensure the property source is correctly configured and not null. This may involve:

• Checking configuration files: Examine your application.properties or application.yml files for proper property definitions.
• Inspecting property source beans: Verify that any custom property source beans are properly defined and configured.
• Ensuring required properties are provided: Confirm that all necessary configuration properties are being supplied.

Additionally, consider:

• Missing dependencies or setup: Check if any dependencies or setup steps are missing or misconfigured, as this can affect application context loading. Ensure all necessary dependencies are included and properly configured.

If the issue persists, provide more information about your setup, including relevant configuration files and code snippets, for more targeted assistance.