test: add nested tsconfig paths test (#527)

Author: sapphi-red

playground/resolve-tsconfig-paths/__tests__/resolve.spec.ts

@@ -12,3 +12,8 @@ test('import from .js', async () => {
 test('fallback works', async () => {
   await expect.poll(() => page.textContent('.fallback')).toMatch('[success]')
 })
+
+test('nested tsconfig.json & references / include works', async () => {
+  await expect.poll(() => page.textContent('.nested-a')).toMatch('[success]')
+  await expect.poll(() => page.textContent('.nested-b')).toMatch('[success]')
+})

playground/resolve-tsconfig-paths/index.html

@@ -9,6 +9,10 @@ <h2>Import from .js</h2>
 <h2>Fallback works</h2>
 <p class="fallback"></p>
 
+<h2>Nested tsconfig.json & references / include works</h2>
+<p class="nested-a"></p>
+<p class="nested-b"></p>
+
 <script type="module">
   function text(selector, text) {
     document.querySelector(selector).textContent = text
@@ -22,4 +26,8 @@ <h2>Fallback works</h2>
 
   import fallback from '@fallback/fallback'
   text('.fallback', fallback)
+
+  import { valueA, valueB } from './src/nested/index.ts'
+  text('.nested-a', valueA)
+  text('.nested-b', valueB)
 </script>

playground/resolve-tsconfig-paths/src/nested/a-imported.ts

@@ -0,0 +1 @@
+export const value = '[success] a-imported' as const

playground/resolve-tsconfig-paths/src/nested/a.ts

@@ -0,0 +1 @@
+export { value } from '@imported'

playground/resolve-tsconfig-paths/src/nested/b-imported.ts

@@ -0,0 +1 @@
+export const value = '[success] b-imported' as const

playground/resolve-tsconfig-paths/src/nested/b.ts

@@ -0,0 +1 @@
+export { value } from '@imported'

playground/resolve-tsconfig-paths/src/nested/index.ts

@@ -0,0 +1,2 @@
+export { value as valueA } from './a'
+export { value as valueB } from './b'

playground/resolve-tsconfig-paths/src/nested/tsconfig.a.json

@@ -0,0 +1,8 @@
+{
+  "include": ["./a.ts"],
+  "compilerOptions": {
+    "paths": {
+      "@imported": ["./a-imported.ts"]
+    }
+  }
+}

playground/resolve-tsconfig-paths/src/nested/tsconfig.b.json

@@ -0,0 +1,8 @@
+{
+  "include": ["./b.ts"],
+  "compilerOptions": {
+    "paths": {
+      "@imported": ["./b-imported.ts"]
+    }
+  }
+}

playground/resolve-tsconfig-paths/src/nested/tsconfig.json

@@ -0,0 +1,7 @@
+{
+  "include": [],
+  "references": [
+    { "path": "./tsconfig.a.json" },
+    { "path": "./tsconfig.b.json" }
+  ]
+}