How to Keep Your Database Clean During Integration Tests?
When writing integration tests that involve database operations, developers must ensure that test execution does not pollute the original data, and the article explores strategies such as using transaction rollbacks, recreating databases, and mocking database interfaces to maintain data integrity.
When you start writing integration tests for a project, especially those that involve database operations, you need to ensure that the original data is not polluted after the test code runs.
Ideally, opening a database transaction before each test case and rolling it back after execution would be perfect, but because the controller’s internal database transaction is independent and unaffected by external tests, this approach remains only theoretical.
Some suggest recreating the database for testing, while others propose running SQL scripts to restore data after tests. I usually mock the lower‑level database access interface, preventing changes from reaching the real database server. How do you handle this? Click the link below to read the original article and see how developers abroad solve this problem.
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