refactor(core): Set up @n8n/integration-test-utils package (#15098)

packages/@n8n/integration-test-utils/.eslintrc.js

@@ -0,0 +1,7 @@
+const sharedOptions = require('@n8n/eslint-config/shared');
+
+/** @type {import('@types/eslint').ESLint.ConfigData} */
+module.exports = {
+	extends: ['@n8n/eslint-config/base'],
+	...sharedOptions(__dirname),
+};

packages/@n8n/integration-test-utils/package.json

@@ -0,0 +1,29 @@
+{
+  "name": "@n8n/integration-test-utils",
+  "version": "0.1.0",
+  "scripts": {
+    "clean": "rimraf dist .turbo",
+    "dev": "pnpm watch",
+    "typecheck": "tsc --noEmit",
+    "build": "tsc -p tsconfig.build.json",
+    "format": "biome format --write .",
+    "format:check": "biome ci .",
+    "lint": "eslint .",
+    "lintfix": "eslint . --fix",
+    "watch": "tsc -p tsconfig.build.json --watch",
+    "test": "jest",
+    "test:dev": "jest --watch"
+  },
+  "main": "dist/index.js",
+  "module": "src/index.ts",
+  "types": "dist/index.d.ts",
+  "files": [
+    "dist/**/*"
+  ],
+  "dependencies": {
+    "reflect-metadata": "catalog:"
+  },
+  "devDependencies": {
+    "@n8n/typescript-config": "workspace:*"
+  }
+}

packages/@n8n/integration-test-utils/src/index.ts

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+export {};

packages/@n8n/integration-test-utils/tsconfig.build.json

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+{
+	"extends": ["./tsconfig.json", "@n8n/typescript-config/tsconfig.build.json"],
+	"compilerOptions": {
+		"composite": true,
+		"rootDir": "src",
+		"outDir": "dist",
+		"tsBuildInfoFile": "dist/build.tsbuildinfo"
+	},
+	"include": ["src/**/*.ts"],
+	"exclude": ["src/**/__tests__/**"]
+}

packages/@n8n/integration-test-utils/tsconfig.json

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+{
+	"extends": "@n8n/typescript-config/tsconfig.common.json",
+	"compilerOptions": {
+		"rootDir": ".",
+		"types": ["node", "jest"],
+		"baseUrl": "src",
+		"tsBuildInfoFile": "dist/typecheck.tsbuildinfo",
+		"experimentalDecorators": true,
+		"emitDecoratorMetadata": true
+	},
+	"include": ["src/**/*.ts"]
+}