fix: type checking for waku unit tests not working (#948)

This fixes type checking for the waku unit tests both in CI and in the
editor

---------

Co-authored-by: Tyler <[email protected]>
Co-authored-by: Daishi Kato <[email protected]>

Author: tylersayshi

packages/waku/src/router/create-pages.ts

@@ -405,7 +405,7 @@ export function createPages<
     /** This for type inference of the router only. We do not actually return anything for this type. */
     DO_NOT_USE_pages: Exclude<
       Exclude<Awaited<Exclude<typeof ready, undefined>>, void>[number],
-      void
+      void // createLayout returns void
     >;
   };
 }

packages/waku/tests/buffer.test.ts

@@ -1,5 +1,5 @@
 import { describe, it, expect } from 'vitest';
-import { bufferToString, parseFormData } from '../src/lib/utils/buffer';
+import { bufferToString, parseFormData } from '../src/lib/utils/buffer.js';
 
 // Minimal valid 1x1 pixel PNG image
 const PNG_HEADER = new Uint8Array([

packages/waku/tests/create-pages.test.ts

@@ -4,7 +4,6 @@ import { createPages } from '../src/router/create-pages.js';
 import type {
   CreateLayout,
   CreatePage,
-  GetSlugs,
   HasSlugInPath,
   HasWildcardInPath,
   IsValidPathInSlugPath,
@@ -20,6 +19,7 @@ import { renderToString } from 'react-dom/server';
 import { expectType } from 'ts-expect';
 import type { TypeEqual } from 'ts-expect';
 import type { PathsForPages } from '../src/router/base-types.js';
+import type { GetSlugs } from '../src/router/create-pages-utils/inferred-path-types.js';
 
 function Fake() {
   return null;

packages/waku/tests/tsconfig.json

@@ -0,0 +1,14 @@
+{
+  "extends": "../../../tsconfig.json",
+  "compilerOptions": {
+    "rootDir": "..",
+    "outDir": "./dist",
+    "lib": ["esnext"]
+  },
+  "include": ["."],
+  "references": [
+    {
+      "path": ".."
+    }
+  ]
+}

packages/waku/tests/vite-plugin-fs-router-typegen.test.ts

@@ -5,7 +5,8 @@ import {
   toIdentifier,
 } from '../src/lib/plugins/vite-plugin-fs-router-typegen.js';
 import { fileURLToPath } from 'node:url';
-import { FSWatcher, ViteDevServer } from 'vite';
+import type { ViteDevServer } from 'vite';
+import { FSWatcher } from 'vite';
 import { writeFile } from 'node:fs/promises';
 
 const root = fileURLToPath(new URL('./fixtures', import.meta.url));

tsconfig.json

@@ -39,6 +39,10 @@
     // E2E
     {
       "path": "./tsconfig.e2e.json"
+    },
+    // Test
+    {
+      "path": "./packages/waku/tests"
     }
   ]
 }