Add failing test for workspace route library

Adds workspace routes fixture and a failing test

integration/helpers/filesystem.ts

@@ -0,0 +1,45 @@
+import fse from "fs-extra";
+import stripIndent from "strip-indent";
+import path from "node:path";
+import url from "node:url";
+
+const __dirname = url.fileURLToPath(new URL(".", import.meta.url));
+const root = path.resolve(__dirname, "../..");
+const TMP_DIR = path.join(root, ".tmp/integration");
+
+export async function writeTestFiles(
+  files: Record<string, string> | undefined,
+  dir: string
+) {
+  await Promise.all(
+    Object.keys(files ?? {}).map(async (filename) => {
+      let filePath = path.join(dir, filename);
+      await fse.ensureDir(path.dirname(filePath));
+      let file = files![filename];
+
+      await fse.writeFile(filePath, stripIndent(file));
+    })
+  );
+}
+
+export async function getAllFilesInDir(dirPath: string): Promise<string[]> {
+  const entries = await fse.promises.readdir(dirPath, { withFileTypes: true });
+  const files = await Promise.all(
+    entries.map((entry) => {
+      const resolvedPath = path.resolve(dirPath, entry.name);
+      if (entry.isDirectory()) {
+        return getAllFilesInDir(resolvedPath);
+      } else {
+        return [resolvedPath];
+      }
+    })
+  );
+  return files.flat();
+}
+
+export async function createTestDirectory() {
+  let folderName = `rr-${Math.random().toString(32).slice(2)}`;
+  let testDir = path.join(TMP_DIR, folderName);
+  await fse.ensureDir(testDir);
+  return testDir;
+}

integration/helpers/vite.ts

@@ -6,7 +6,6 @@ import url from "node:url";
 import { createRequire } from "node:module";
 import { platform } from "node:os";
 import fse from "fs-extra";
-import stripIndent from "strip-indent";
 import waitOn from "wait-on";
 import getPort from "get-port";
 import shell from "shelljs";
@@ -15,13 +14,12 @@ import dedent from "dedent";
 import type { Page } from "@playwright/test";
 import { test as base, expect } from "@playwright/test";
 import type { Config } from "@react-router/dev/config";
+import { createTestDirectory, writeTestFiles } from "./filesystem";
 
 const require = createRequire(import.meta.url);
 
 const reactRouterBin = "node_modules/@react-router/dev/bin.js";
 const __dirname = url.fileURLToPath(new URL(".", import.meta.url));
-const root = path.resolve(__dirname, "../..");
-const TMP_DIR = path.join(root, ".tmp/integration");
 
 export const reactRouterConfig = ({
   ssr,
@@ -157,26 +155,50 @@ export async function createProject(
   files: Record<string, string> = {},
   templateName: TemplateName = "vite-5-template"
 ) {
-  let projectName = `rr-${Math.random().toString(32).slice(2)}`;
-  let projectDir = path.join(TMP_DIR, projectName);
-  await fse.ensureDir(projectDir);
+  let projectDir = await createTestDirectory();
 
   // base template
   let templateDir = path.resolve(__dirname, templateName);
   await fse.copy(templateDir, projectDir, { errorOnExist: true });
 
   // user-defined files
-  await Promise.all(
-    Object.entries(files).map(async ([filename, contents]) => {
-      let filepath = path.join(projectDir, filename);
-      await fse.ensureDir(path.dirname(filepath));
-      await fse.writeFile(filepath, stripIndent(contents));
-    })
-  );
+  await writeTestFiles(files, projectDir);
 
   return projectDir;
 }
 
+type WorkspaceFileCreatorFn = (
+  libDir: string,
+  appDir: string
+) => { appFiles?: Record<string, string>; libFiles?: Record<string, string> };
+
+export async function createWorkspaceProject(files: WorkspaceFileCreatorFn) {
+  const workspaceDir = await createTestDirectory();
+
+  const workspaceTemplateDir = path.resolve(
+    __dirname,
+    "workspace-routes-template"
+  );
+  await fse.copy(workspaceTemplateDir, workspaceDir, { errorOnExist: true });
+
+  const appProjectDir = path.resolve(workspaceDir, "apps", "test-app");
+  const libProjectDir = path.resolve(workspaceDir, "libs", "test-route-library");
+
+  const userFiles = files(libProjectDir, appProjectDir);
+  if (userFiles.libFiles) {
+    await writeTestFiles(userFiles.libFiles, libProjectDir);
+  }
+  if (userFiles.appFiles) {
+    await writeTestFiles(userFiles.appFiles, appProjectDir);
+  }
+
+  return {
+    appProjectDir,
+    libProjectDir,
+    workspaceDir,
+  };
+}
+
 // Avoid "Warning: The 'NO_COLOR' env is ignored due to the 'FORCE_COLOR' env
 // being set" in vite-ecosystem-ci which breaks empty stderr assertions. To fix
 // this we always ensure that only NO_COLOR is set after spreading process.env.

integration/helpers/workspace-routes-template/apps/test-app/.gitignore

@@ -0,0 +1,6 @@
+node_modules
+
+/.cache
+/build
+.env
+.react-router

integration/helpers/workspace-routes-template/apps/test-app/app/root.tsx

@@ -0,0 +1,19 @@
+import { Links, Meta, Outlet, Scripts, ScrollRestoration } from "react-router";
+
+export default function App() {
+  return (
+    <html lang="en">
+      <head>
+        <meta charSet="utf-8" />
+        <meta name="viewport" content="width=device-width, initial-scale=1" />
+        <Meta />
+        <Links />
+      </head>
+      <body>
+        <Outlet />
+        <ScrollRestoration />
+        <Scripts />
+      </body>
+    </html>
+  );
+}

integration/helpers/workspace-routes-template/apps/test-app/app/routes.ts

@@ -0,0 +1,4 @@
+import { type RouteConfig } from "@react-router/dev/routes";
+import { flatRoutes } from "@react-router/fs-routes";
+
+export default flatRoutes() satisfies RouteConfig;

integration/helpers/workspace-routes-template/apps/test-app/app/routes/_index.tsx

@@ -0,0 +1,16 @@
+import type { MetaFunction } from "react-router";
+
+export const meta: MetaFunction = () => {
+  return [
+    { title: "New React Router App" },
+    { name: "description", content: "Welcome to React Router!" },
+  ];
+};
+
+export default function Index() {
+  return (
+    <div style={{ fontFamily: "system-ui, sans-serif", lineHeight: "1.8" }}>
+      <h1>Welcome to React Router</h1>
+    </div>
+  );
+}

integration/helpers/workspace-routes-template/apps/test-app/env.d.ts

@@ -0,0 +1,2 @@
+/// <reference types="@react-router/node" />
+/// <reference types="vite/client" />

integration/helpers/workspace-routes-template/apps/test-app/package.json

@@ -0,0 +1,42 @@
+{
+  "name": "integration-workspace-test-app-template",
+  "version": "0.0.0",
+  "private": true,
+  "sideEffects": false,
+  "type": "module",
+  "scripts": {
+    "dev": "react-router dev",
+    "build": "react-router build",
+    "start": "react-router-serve ./build/server/index.js",
+    "typecheck": "react-router typegen && tsc"
+  },
+  "dependencies": {
+    "@react-router/express": "workspace:*",
+    "@react-router/node": "workspace:*",
+    "@react-router/serve": "workspace:*",
+    "@vanilla-extract/css": "^1.10.0",
+    "@vanilla-extract/vite-plugin": "^3.9.2",
+    "express": "^4.19.2",
+    "isbot": "^5.1.11",
+    "react": "^18.2.0",
+    "react-dom": "^18.2.0",
+    "react-router": "workspace:*",
+    "test-route-library": "workspace:*",
+    "serialize-javascript": "^6.0.1"
+  },
+  "devDependencies": {
+    "@react-router/dev": "workspace:*",
+    "@react-router/fs-routes": "workspace:*",
+    "@react-router/remix-routes-option-adapter": "workspace:*",
+    "@types/react": "^18.2.20",
+    "@types/react-dom": "^18.2.7",
+    "eslint": "^8.38.0",
+    "typescript": "^5.1.6",
+    "vite": "^6.0.0",
+    "vite-env-only": "^3.0.1",
+    "vite-tsconfig-paths": "^4.2.1"
+  },
+  "engines": {
+    "node": ">=20.0.0"
+  }
+}

integration/helpers/workspace-routes-template/apps/test-app/tsconfig.json

@@ -0,0 +1,27 @@
+{
+  "include": [
+    "env.d.ts",
+    "**/*.ts",
+    "**/*.tsx",
+    ".react-router/types/**/*.d.ts"
+  ],
+  "compilerOptions": {
+    "lib": ["DOM", "DOM.Iterable", "ES2022"],
+    "verbatimModuleSyntax": true,
+    "esModuleInterop": true,
+    "jsx": "react-jsx",
+    "module": "ESNext",
+    "moduleResolution": "Bundler",
+    "resolveJsonModule": true,
+    "target": "ES2022",
+    "strict": true,
+    "allowJs": true,
+    "skipLibCheck": true,
+    "baseUrl": ".",
+    "paths": {
+      "~/*": ["./app/*"]
+    },
+    "noEmit": true,
+    "rootDirs": [".", ".react-router/types/"]
+  }
+}

integration/helpers/workspace-routes-template/apps/test-app/vite.config.ts

@@ -0,0 +1,7 @@
+import { reactRouter } from "@react-router/dev/vite";
+import { defineConfig } from "vite";
+import tsconfigPaths from "vite-tsconfig-paths";
+
+export default defineConfig({
+  plugins: [reactRouter(), tsconfigPaths()],
+});

integration/helpers/workspace-routes-template/libs/test-route-library/index.d.ts

@@ -0,0 +1 @@
+export function sum(a: number, b: number): number;

integration/helpers/workspace-routes-template/libs/test-route-library/index.js

@@ -0,0 +1,3 @@
+export function sum(a, b) {
+  return a + b;
+}

integration/helpers/workspace-routes-template/libs/test-route-library/package.json

@@ -0,0 +1,12 @@
+{
+  "name": "test-route-library",
+  "type": "module",
+  "private": true,
+  "exports": {
+    ".": "./index.js"
+  },
+  "peerDependencies": {
+    "react": "^18.2.0",
+    "@react-router/dev": "workspace:*"
+  }
+}

integration/typegen-test.ts

@@ -5,7 +5,11 @@ import { expect, test } from "@playwright/test";
 import dedent from "dedent";
 import fse from "fs-extra";
 
-import { createProject } from "./helpers/vite";
+import {
+  createProject,
+  createWorkspaceProject,
+} from "./helpers/vite";
+import { getAllFilesInDir } from "./helpers/filesystem";
 
 const tsx = dedent;
 
@@ -362,4 +366,39 @@ test.describe("typegen", () => {
     expect(proc.stderr.toString()).toBe("");
     expect(proc.status).toBe(0);
   });
+
+  test("route files from workspace packages", async () => {
+    const { appProjectDir } = await createWorkspaceProject((libDir) => ({
+      appFiles: {
+        "app/routes.ts": tsx`
+          import type { RouteConfig } from "@react-router/dev/routes";
+          export default [
+            { path: 'lib-route', file: "${libDir}/my-route.jsx" }
+          ] satisfies RouteConfig;
+        `,
+      },
+      libFiles: {
+        "my-route.jsx": tsx`
+          export default function MyRoute() {
+            return <h1>My Route</h1>;
+          }
+        `,
+      },
+    }));
+
+    const proc = typecheck(appProjectDir);
+
+    expect(proc.stdout.toString()).toBe("");
+    expect(proc.stderr.toString()).toBe("");
+    expect(proc.status).toBe(0);
+
+    // Expect that the route library's typing is not generated into the app project
+    const files = await getAllFilesInDir(appProjectDir);
+    const appProjectFiles = files.filter(
+      (name) => !name.includes("node_modules")
+    );
+    expect(
+      appProjectFiles.some((name) => name.includes("my-route"))
+    ).toBeFalsy();
+  });
 });