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Run the tests

How-to

Run each suiteLink to this section

FairPay app tests (bills, payments, FairEats and GST maths, with an in-memory database and a fake chain).
bash
```
npm run test:fairpay
```

Contract tests (run in-process).

bash

cd packages/contracts && npm install && npx hardhat test

Start a local node in a second terminal and leave it running.
bash
```
cd packages/contracts && npx hardhat node
```

Deploy the contracts to it.

bash

cd packages/contracts
MERCHANTS=0x3C44CdDdB6a900fa2b585dd299e03d12FA4293BC \
  npx hardhat run scripts/deploy.ts --network localhost

On PowerShell, set the variable first, then run the same command without the prefix:

PowerShell

$env:MERCHANTS = "0x3C44CdDdB6a900fa2b585dd299e03d12FA4293BC"
npx hardhat run scripts/deploy.ts --network localhost

That address is a well-known public Hardhat test account, not anyone's wallet.

SDK tests (unit tests and tests against the node), from the repository root.
bash
```
npm run build:sdk
npm test -w @fairpay/sdk
```
Standalone FairEats tests. Without a node, the tests that need one skip with a message and the run still passes.
bash
```
npm test
```

Typecheck the apps.

bash

npm run typecheck -w fairpay-app
cd apps/faireats && npx tsc -p tsconfig.json

Careful: the SDK and FairEats suites write to the local chain (mint, deposit, pay). Run them one at a time against a node nothing else is using.

Check: each command ends with all tests passing (or, without a node, skipped with a message).