https://docs.substrate.io/tutorials/v3/ink-workshop/pt3/

Test the smart contract

$ cargo +nightly test

Build the smart contract

$ cargo +nightly contract build

$ substrate-contracts-node --dev --tmp

Also test in Canvas UI:

https://docs.substrate.io/tutorials/v3/ink-workshop/pt2/

• Click the Upload & Instantiate Contract button.
• Choose an Instantiation account (e.g. ALICE).
• Give the contract a descriptive Name (e.g. Flipper Contract).
• Drag the flipper.contract file that contains the bundled Wasm blob and metadata into the drag & drop area. You will see the UI parse the metadata and showing what functions the contract contains.
• Click the Constructor Details