From 8027a2d1dce94c620c16a2ab3c8296b02dcb2dc2 Mon Sep 17 00:00:00 2001
From: Josh Goebel <me@joshgoebel.com>
Date: Fri, 2 Jul 2021 20:38:58 -0400
Subject: [PATCH] test that the CDN ESM build is importable (to node)

---
 .github/workflows/node.js.yml    |  5 +++++
 test/builds/cdn_build_as_esm.mjs | 24 ++++++++++++++++++++++++
 2 files changed, 29 insertions(+)
 create mode 100644 test/builds/cdn_build_as_esm.mjs

diff --git a/.github/workflows/node.js.yml b/.github/workflows/node.js.yml
index 1c265e0808..d3c86f96e5 100644
--- a/.github/workflows/node.js.yml
+++ b/.github/workflows/node.js.yml
@@ -33,6 +33,11 @@ jobs:
       run: |
         npm run test-browser
         node test/builds/browser_build_as_commonjs.js
+    # CDN build should be easily importable
+    - if: contains(matrix.build-how, 'cdn')
+      name: Test: Can import CDN esm build
+      run: |
+        node test/builds/cdn_build_as_esm.mjs
 
     - if: contains(matrix.build-how, 'node')
       name: Test Node.js build
diff --git a/test/builds/cdn_build_as_esm.mjs b/test/builds/cdn_build_as_esm.mjs
new file mode 100644
index 0000000000..b217e7d5ce
--- /dev/null
+++ b/test/builds/cdn_build_as_esm.mjs
@@ -0,0 +1,24 @@
+import hljs from "../../build/es/highlight.js";
+
+const API = [
+  "getLanguage",
+  "registerLanguage",
+  "highlight",
+  "highlightAuto",
+  "highlightAll",
+  "highlightElement"
+];
+
+const assert = (f,msg) => {
+  if (!f()) {
+    console.error(msg);
+    process.exit(1);
+  }
+};
+const keys = Object.keys(hljs);
+
+API.forEach(n => {
+  assert(_ => keys.includes(n), `API should include ${n}`);
+});
+
+console.log("Pass: browser build works with Node.js just fine.")