test: add case

vitejs · Dec 29, 2022 · a8d1a21 · a8d1a21
1 parent 52bfae4
commit a8d1a21
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Showing 4 changed files with 40 additions and 16 deletions.
diff --git a/packages/vite/src/node/plugins/html.ts b/packages/vite/src/node/plugins/html.ts
@@ -52,8 +52,7 @@ const moduleScriptRE =
   /[ \t]*<script[^>]*type\s*=\s*(?:"module"|'module'|module)[^>]*>/i
 const modulePreloadLinkRE =
   /[ \t]*<link[^>]*rel\s*=\s*(?:"modulepreload"|'modulepreload'|modulepreload)[\s\S]*?\/>/i
-
-const importMapDependenciesRE = new RegExp(
+const importMapAppendRE = new RegExp(
   [moduleScriptRE, modulePreloadLinkRE].map((r) => r.source).join('|'),
   'i',
 )
@@ -898,10 +897,10 @@ export function preImportMapHook(
     const importMapIndex = html.match(importMapRE)?.index
     if (importMapIndex === undefined) return
 
-    const importMapDepIndex = html.match(importMapDependenciesRE)?.index
-    if (importMapDepIndex === undefined) return
+    const importMapAppendIndex = html.match(importMapAppendRE)?.index
+    if (importMapAppendIndex === undefined) return
 
-    if (importMapDepIndex < importMapIndex) {
+    if (importMapAppendIndex < importMapIndex) {
       const relativeHtml = normalizePath(
         path.relative(config.root, ctx.filename),
       )
@@ -921,7 +920,7 @@ export function preImportMapHook(
  */
 export function postImportMapHook(): IndexHtmlTransformHook {
   return (html) => {
-    if (!importMapDependenciesRE.test(html)) return
+    if (!importMapAppendRE.test(html)) return
 
     let importMap: string | undefined
     html = html.replace(importMapRE, (match) => {
@@ -930,9 +929,10 @@ export function postImportMapHook(): IndexHtmlTransformHook {
     })
 
     if (importMap) {
-      html = html.replace(importMapDependenciesRE, (match) => {
-        return `${importMap}\n${match}`
-      })
+      html = html.replace(
+        importMapAppendRE,
+        (match) => `${importMap}\n${match}`,
+      )
     }
 
     return html

diff --git a/playground/html/__tests__/html.spec.ts b/playground/html/__tests__/html.spec.ts
@@ -251,12 +251,6 @@ describe.runIf(isServe)('invalid', () => {
   })
 })
 
-test('importmap', () => {
-  expect(browserLogs).not.toContain(
-    'An import map is added after module script load was triggered.',
-  )
-})
-
 describe('Valid HTML', () => {
   test('valid HTML is parsed', async () => {
     await page.goto(viteTestUrl + '/valid.html')
@@ -267,3 +261,16 @@ describe('Valid HTML', () => {
     expect(await getColor('#duplicated-attrs')).toBe('green')
   })
 })
+
+describe('importmap', () => {
+  beforeAll(async () => {
+    await page.goto(viteTestUrl + '/importmapOrder.html')
+  })
+
+  // Should put this test at the end to get all browser logs above
+  test('importmap should be prepended', async () => {
+    expect(browserLogs).not.toContain(
+      'An import map is added after module script load was triggered.',
+    )
+  })
+})
diff --git a/playground/html/importmapOrder.html b/playground/html/importmapOrder.html
@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <script type="importmap">
+      {
+        "imports": {
+          "some-pkg": "url-of-pkg"
+        }
+      }
+    </script>
+    <link rel="modulepreload" href="url-of-pkg" />
+    <script type="module" src="/main.js"></script>
+  </head>
+</html>
diff --git a/playground/html/vite.config.js b/playground/html/vite.config.js
@@ -28,6 +28,7 @@ module.exports = {
         ),
         linkProps: resolve(__dirname, 'link-props/index.html'),
         valid: resolve(__dirname, 'valid.html'),
+        importmapOrder: resolve(__dirname, 'importmapOrder.html'),
       },
     },
   },
@@ -168,7 +169,9 @@ ${
     },
     {
       name: 'head-prepend-importmap',
-      transformIndexHtml() {
+      transformIndexHtml(_, ctx) {
+        if (ctx.path.includes('importmapOrder')) return
+
         return [
           {
             tag: 'script',