Intermediate
Testing Smart Contracts — Check your understanding
Build confidence before deploying.
Developer Intermediate
6/6 — Testing Smart Contracts — Check your understanding
Confidence If you removed one invariant or fuzz test, would a meaningful bug slip through? Your answer should be no. If yes, add the test.
Coverage literacy You should know which branches remain untested and why. If coverage drops, you know which test to add.
CI discipline You can explain your CI gates and show an example of a build failing on a regression, not just a happy-path pass.
Key points
- Explain when you choose:Unit vs integration vs fuzz vs invariants.
- Describe an invariant you:Enforce and why it matters.
- Show how you assert:Events/reverts/custom errors and boundaries.
- State how CI runs:Tests, measures coverage/gas, and fails on regressions.