test1/tsconfig.json

{
    "compilerOptions": {
        "forceConsistentCasingInFileNames": true,
        "importHelpers": true,
        "lib": ["es2015", "es2016", "es2017"],
        "module": "esnext",
        "moduleResolution": "node",
        "noFallthroughCasesInSwitch": true,
        "noImplicitReturns": true,
        "noUnusedLocals": true,
        "outDir": "out",
        "removeComments": true,
        "rootDir": "./src",
        "skipLibCheck": true,
        "sourceMap": true,
        "strict": true,
        "target": "es2017"
    },
    "exclude": ["node_modules", "test", "src/ui"]
}