Spring Boot - Testing Spring Boot Applications
You want to run multiple tests in parallel using Testcontainers with a shared PostgreSQL container. What is the best practice to avoid conflicts?
You want to run multiple tests in parallel using Testcontainers with a shared PostgreSQL container. What is the best practice to avoid conflicts?
hard📝 Application Q9 of 15
Step-by-Step Solution
Solution:
Step 1: Understand container reuse and parallel tests
Sharing a static container is efficient but requires isolation at schema or database level to avoid conflicts.Step 2: Evaluate alternatives
Creating new containers per test is slow; disabling reuse reduces speed; in-memory DBs differ from real DB behavior.Final Answer:
Use a single static container and ensure tests use separate schemas or databases -> Option DQuick Check:
Shared container + separate schemas = safe parallel tests [OK]
Quick Trick: Share container but isolate schemas for parallel tests [OK]
Common Mistakes:
- Starting new containers per test causing slowdowns
- Ignoring schema conflicts in shared container
- Switching to in-memory DB losing real DB fidelity
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