Entity Framework Core Interview Question #181

What should be tested about EF Core migrations?

Testing, Production Practices & Senior Real-World Scenarios Senior Advanced

Quick Interview Answer

Test that migrations can create or upgrade the schema expected by the application, especially before production releases. Important upgrade paths should be exercised against realistic database states. Review generated SQL for destructive operations, locking risk, long-running data transformations, and compatibility with the deployed application version.

Detailed Explanation

Test that migrations can create or upgrade the schema expected by the application, especially before production releases. Important upgrade paths should be exercised against realistic database states. Review generated SQL for destructive operations, locking risk, long-running data transformations, and compatibility with the deployed application version.

Code Example

dotnet ef migrations script --idempotent -o migration.sql

// Review and test the script before production deployment.