test: implement smoke & e2e tests

Smoke tests atm just check the health of a target bundler instance, e2e tests actually require a
private key and funds to perform the full user opration flow. Refer to the docstrings and .env to
see how to use them

.env-example

@@ -1,16 +1,28 @@
+# - Core bundler environment variables -
+
 BUNDLER_CONFIG_PASSPHRASE=
-BUNDLER_NODE_PATH_INDEX=0
-BUNDLER_CHAIN_ID=80001
-BUNDLER_MIN_RELAYER_COUNT=5
-BUNDLER_MAX_RELAYER_COUNT=10
-BUNDLER_FUNDING_BALANCE_THRESHOLD=0.1
-BUNDLER_FUNDING_RELAYER_AMOUNT=0.2
-BUNDLER_SLACK_JSON='{"token": "","channel": ""}'
-BUNDLER_PROVIDER_JSON='{"137": "", "42161": "", "56": "", "10": "", "43114": "", "8453": "", "80001": ""}'
-BUNDLER_DATASOURCES_JSON= '{"mongoUrl": "", "redisUrl": ""}'
-BUNDLER_QUEUE_URL=""
-BUNDLER_IS_TRUSTWALLET_SETUP=true
-BUNDLER_FALLBACK_PROVIDER_JSON='{"137": ["", ""], "42161": ["", ""], "56": ["", ""], "10": ["", ""], "43114": ["", ""], "8453": ["", ""], "80001": ["", ""]}'
+NODE_PATH_INDEX=0
+# 🔥 make sure this is never development when deploying to production 🔥
+NODE_ENV=development
+
+# - Smoke tests environment variables -
+
+# You can set the folloowing to a production deployment if you want to run smoke tests against the production environment
+SMOKE_TEST_BUNDLER_HOSTNAME=https://bundler.biconomy.io
+
+# - E2E tests environment variables -
+
+# Following are the environment variables required for e2e tests, see the docstrings inside src/test/e2e/nativeTransfer.test.ts for more information
+# Set this to the private key of the EOA account that will be used to derive the smart account
+PRIVATE_KEY=
+
+# Set this to https://bundler.biconomy.io if you want to test against the production environment
+BUNDLER_HOSTNAME=http://localhost:3000
 
-// make sure this is never development when deploying to production, and delete this line
-NODE_ENV=
+# You don't have to set all of the paymasters, just the ones you want to test e2e
+BASE_MAINNET_PAYMASTER_URL=
+AVALANCHE_MAINNET_PAYMASTER_URL=
+OPTIMISM_MAINNET_PAYMASTER_URL=
+POLYGON_MAINNET_PAYMASTER_URL=
+BSC_MAINNET_PAYMASTER_URL=
+ARBITRUM_MAINNET_PAYMASTER_URL=

config/test.json

@@ -1,50 +1,12 @@
 {
-  "supportedNetworks": [1],
+  "config": {
+    "validate": false
+  },
   "relayer": {
     "nodePathIndex": 0
   },
-  "dataSources": {
-    "redisUrl": "test"
-  },
   "clearStaleMessages": {
     "supportedNetworks": [1],
     "ttlSeconds": 1
-  },
-  "chains": {
-    "providers": {
-      "1": [
-        {
-          "url": "https://thislinkdoesnotexist.rs",
-          "type": "private"
-        }
-      ],
-      "10": [
-        {
-          "url": "https://thislinkdoesnotexist.rs",
-          "type": "private"
-        }
-      ],
-      "137": [
-        {
-          "url": "https://thislinkdoesnotexist.rs",
-          "type": "private"
-        }
-      ],
-      "11155111": [
-        {
-          "url": "https://thislinkdoesnotexist.rs",
-          "type": "private"
-        },
-        {
-          "url": "https://thislinkdoesnotexist.rs",
-          "type": "mev-protected"
-        }
-      ]
-    }
-  },
-  "EVMNetworkService": {
-    "waitForTransaction": {
-      "timeoutMs": 2000
-    }
   }
 }

package.json

@@ -7,7 +7,9 @@
     "build": "tsc -p .",
     "start": "node --max_old_space_size=6000 dist/server/index.js",
     "start:production": "NODE_ENV=production node --max_old_space_size=6000 dist/server/index.js",
-    "test": "jest --testPathIgnorePatterns smoke --setupFiles dotenv/config --verbose"
+    "test": "jest --testPathIgnorePatterns='/smoke|e2e/' --setupFiles dotenv/config --verbose",
+    "test:smoke": "jest -t smoke --setupFiles dotenv/config --verbose",
+    "test:e2e": "jest --testPathIgnorePatterns='smoke' -t e2e --setupFiles dotenv/config --verbose"
   },
   "dependencies": {
     "@arbitrum/sdk": "^3.1.3",
@@ -60,6 +62,7 @@
     "viem": "^2.21.28"
   },
   "devDependencies": {
+    "@biconomy/account": "^4.5.7",
     "@eslint/js": "^9.13.0",
     "@types/amqplib": "^0.8.2",
     "@types/big.js": "^6.1.5",