Question 1

How to use dbcleaner with Go's standard testing package instead of testify?

Accepted Answer

You can manually call Acquire and Clean methods in your test functions, but the README focuses on testify integration for structured suites, requiring additional setup for standard testing.

Question 2

DbCleaner vs sqlmock for Go database testing: which should I use?

Accepted Answer

DbCleaner is for integration tests needing actual database cleanup with parallel safety, while sqlmock mocks database interactions. Use DbCleaner for tests that require real database state isolation.

Question 3

How to handle deadlocks when dbcleaner runs parallel tests?

Accepted Answer

Configure the NumberOfRetry and RetryInterval options to allow retries on lock acquisition, and set LockTimeout to prevent tests from hanging indefinitely in high-concurrency scenarios.

Question 4

Can dbcleaner work with databases like MongoDB or SQL Server?

Accepted Answer

Not directly; for MongoDB, you need a custom Engine implementation since it's NoSQL, and for SQL Server, you might extend support via the database/sql driver if available.

Question 5

How to set up dbcleaner in a CI/CD pipeline with parallel jobs?

Accepted Answer

Ensure the lock file directory is shared or accessible across test runners, and adjust retry settings based on your CI's concurrency to avoid timeouts or failures.

Question 6

What are the performance impacts of dbcleaner's file locking?

Accepted Answer

File locking adds overhead, especially with many parallel tests, but configurable timeouts and retries help balance reliability, though it may slow down test execution in resource-constrained environments.

Question 7

How to implement a custom engine for a database not supported by dbcleaner?

Accepted Answer

Implement the engine.Engine interface with Truncate and Close methods, then use SetEngine on the Cleaner instance, as detailed in the README for extensibility.

dbcleaner

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