tor-browser

commit aab59189a2c2b0063e121dcfdf4113d6e1a53631
parent 08904835b890fdee01976450b0c5ae62844fafd5
Author: Yoshi Cheng-Hao Huang <allstars.chh@gmail.com>
Date:   Fri,  3 Oct 2025 20:53:30 +0000

Bug 1968890 - Part 9: Add test for dynamic import. r=jonco

This test checks that the TypeError from fetching the sub-modules will
be forwarded to the reject handler of the promise of the dynamic import.

Differential Revision: https://phabricator.services.mozilla.com/D264811

Diffstat:
M
dom/base/test/jsmodules/chrome.toml
 | 
1
+
A
dom/base/test/jsmodules/import_404.mjs
 | 
2
++
M
dom/base/test/jsmodules/test_dynamicImportErrorMessage.html
 | 
17
++++++++++++++++-

3 files changed, 19 insertions(+), 1 deletion(-)
diff --git a/dom/base/test/jsmodules/chrome.toml b/dom/base/test/jsmodules/chrome.toml
@@ -1,6 +1,7 @@
 [DEFAULT]
 support-files = [
   "ambiguous_export.mjs",
+  "import_404.mjs",
   "import_ambiguous.mjs",
   "import_ambiguous_indirect_export.mjs",
   "import_ambiguous_export.mjs",
diff --git a/dom/base/test/jsmodules/import_404.mjs b/dom/base/test/jsmodules/import_404.mjs
@@ -0,0 +1,2 @@
+/* eslint-disable import/no-unresolved */
+import { A } from "./404.js";
diff --git a/dom/base/test/jsmodules/test_dynamicImportErrorMessage.html b/dom/base/test/jsmodules/test_dynamicImportErrorMessage.html
@@ -5,12 +5,27 @@
 <script>
   SimpleTest.waitForExplicitFinish();
 
+  let count = 0;
+  function maybeFinish() {
+    count++;
+    if (count == 2) {
+      SimpleTest.finish();
+    }
+  }
+
   // eslint-disable-next-line no-unused-vars
   async function testLoaded() {
+
     await import("./404.js").catch((error) => {
       ok(error instanceof TypeError, "Should be a TypeError.");
       ok(error.message.match(/404.js/), "Should have the filename.");
-      SimpleTest.finish();
+      maybeFinish();
+    });
+
+    await import("./import_404.mjs").catch((error) => {
+      ok(error instanceof TypeError, "Should be a TypeError.");
+      ok(error.message.match(/404.js/), "Should have the filename from sub-modules");
+      maybeFinish();
     });
   }
 </script>