updated readme with instruction to run L1-L2 testing

README.md

@@ -1,7 +1,57 @@
 # WIP of Fossil to Cairo 1
 
 ## References
-- Fossil cairo 0: https://github.com/OilerNetwork/fossil
+- Fossil cairo 0: https://github.com/OilerNetwork/fossil_cairo0/tree/master
 - Some utils libraries that can be reused after refacto to latest cairo updates: https://github.com/HerodotusDev/cairo-lib
 
-### The repo structure and files organisation will be reviewed once all the components will be implemented
+### The repo structure and files organisation will be reviewed once all the components will be implemented
+
+### Testing
+1. Start Anvil in a new terminal with the command `anvil`.
+
+2. Install dependencies:
+   ```bash
+   cd ethereum
+   forge install
+   ```
+
+3. Build the project and set up environment variables:
+   ```bash
+   cd starknet
+   scarb build
+   source katana/katana.env
+   ```
+
+4. I a New Terminal Start the Katana StarkNet node:
+   ```bash
+   katana --messaging anvil.messaging.json --disable-fee
+   ```
+
+5. In a New Terminal Declare the Cairo contracts:
+   ```bash
+   cd starknet
+   katana/declare.sh
+   ```
+
+6. Deploy the Cairo contracts:
+   ```bash
+   katana/deploy.sh
+   ```
+
+7. Initialize the deployed contracts:
+   ```bash
+   source katana/initialize_contracts.sh 
+   ```
+
+8. Set up local Ethereum testing:
+   ```bash
+   cd ../ethereum
+   cp anvil.env .env
+   source .env
+   forge script script/LocalTesting.s.sol:LocalSetup --broadcast --rpc-url ${ETH_RPC_URL}
+   ```
+
+9. Send a message:
+   ```bash
+   forge script script/SendMessage.s.sol:Value --broadcast --rpc-url ${ETH_RPC_URL}
+   ```