Test for Error
Hands-on exercise: Test for Error
Objectives
By the end of this exercise, you will be able to:
- Verify you can no longer submit transactions after removing your transactor permissions
- Verify you can no longer deploy contracts after removing your deployer permissions
- Recognize the failure modes users will see in wallets and dApps
Instructions
Step 1: Attempt a normal transaction (should fail)
In your Core Wallet browser extension:
- Stay on your L1 network
- Try to send a small amount of the native token to any address you control
- Confirm the transaction
You should see a failure/revert because the Transaction AllowList blocks your address from submitting transactions.
Step 2: Attempt a contract deployment (should fail)
Use the ICM demo deploy tool (any deployment attempt works — we’re just testing deploy restrictions):
Builder Console
Checking requirements...
When you try to deploy, the transaction should fail because the Contract Deployer AllowList blocks your address from deploying contracts.
Expected Output
You should see:
- A failed value transfer transaction (blocked by Transaction AllowList)
- A failed contract deployment (blocked by Contract Deployer AllowList)
Next Steps
Next we’ll cover how to safely recover from mistakes like this using network upgrades (enable/disable + role recovery).
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