test: use fixed deployer address to increase L1 cache hits

Author: alxdca

.github/workflows/build-test.yml

@@ -2,6 +2,9 @@ name: Build, Test
 
 on:
   pull_request:
+  push:
+    branches:
+      - main
   workflow_dispatch:
 
 # https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#concurrency
@@ -326,7 +329,9 @@ jobs:
         run: pnpm test:integration:anvil
 
       - name: Save anvil RPC cache
-        if: always()
+        if: >-
+          always() &&
+          github.ref_name == 'main'
         uses: actions/cache/save@v4
         with:
           path: .cache/anvil-rpc-cache.json

src/integrationTestHelpers/anvilHarness.ts

@@ -239,7 +239,7 @@ export async function setupAnvilTestStack(): Promise<AnvilTestStack> {
 
     const l1RpcUrlWithCaching = l1RpcCachingProxy.proxyUrl;
 
-    const harnessDeployer = createAccount();
+    const harnessDeployer = createAccount(testConstants.DEPLOYER_PRIVATE_KEY);
     const blockAdvancerAccount = createAccount();
 
     // Starting L1 node (Anvil)

src/integrationTestHelpers/constants.ts

@@ -1,10 +1,12 @@
-import { parseAbi } from 'viem';
+import { Address, parseAbi } from 'viem';
 import { ethers } from 'ethers';
 
 export const testConstants = {
   DEFAULT_ANVIL_IMAGE: 'ghcr.io/foundry-rs/foundry:v1.3.1',
   DEFAULT_NITRO_IMAGE: 'offchainlabs/nitro-node:v3.9.5-66e42c4',
   DEFAULT_NITRO_CONTRACTS_IMAGE: 'ghcr.io/offchainlabs/chain-sdk-nitro-contracts:v3.2.0-2f747c7',
+  DEPLOYER_PRIVATE_KEY:
+    '0x490d84b7602e4b470af4f86a3ad095607a8bb5a4fa8ba148f41fcfd236b4fdf5' as Address,
   DEFAULT_L2_CHAIN_ID: 421_337,
   DEFAULT_L3_CHAIN_ID: 421_338,
   DEFAULT_L1_RPC_PORT: 9645,