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TESTING.md

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Testing

Some background to understand and write tests for the nns-dapp.

Frontend Testing

Tests are in ./frontend/src/tests.

Running Tests

$ cd frontend
$ npm test

Unit Tests

Tests in frontend/src/tests/lib and frontend/src/tests/routes are the unit tests for each component or functions we have.

A simple component test example can be AccountBadge.spec.ts.

On the other hand, check accounts.utils.spec for function testing.

Integration Tests

Test in src/tests/workfows are considered more of integration tests. The main goal is to test whole workflows mocking only the api layer.

For example in CreateSubaccount.spec.ts it renders the Accounts page and performs the actions to create a subaccount.

There are a few rules to consider a test as an integration test:

  • Mock only the api layer and authStore.
  • Set the stores to any value needed to check the flow you're testing.
  • No mocking of services, utils, stores, ...
  • Do not use CSS classes as selector.
  • Expect calls to the api layer.

Mocks

All the mocks used in different tests are in frontend/src/tests/mocks.

Test Utils

Found in frontend/src/tests/utils.

Canister Test

Tests are found in rs/src/accounts_store/tests.rs.

Running Tests

$ cd rs
$ cargo test

Unit Tests

At the moment we have only unit tests.