1 files changed, 24 insertions, 0 deletions
diff --git a/packages/markdown/marked/test/specs/commonmark/getSpecs.js b/packages/markdown/marked/test/specs/commonmark/getSpecs.js
new file mode 100644
index 00000000..f22e00c0
--- /dev/null
+++ b/packages/markdown/marked/test/specs/commonmark/getSpecs.js
@@ -0,0 +1,24 @@
+const fetch = require('node-fetch');
+const marked = require('../../../');
+const htmlDiffer = require('../../helpers/html-differ.js');
+const fs = require('fs');
+
+fetch('https://raw.githubusercontent.com/commonmark/commonmark.js/master/package.json')
+  .then(res => res.json())
+  .then(pkg => pkg.version.replace(/^(\d+\.\d+).*$/, '$1'))
+  .then(version =>
+    fetch(`https://spec.commonmark.org/${version}/spec.json`)
+      .then(res => res.json())
+      .then(specs => {
+        specs.forEach(spec => {
+          const html = marked(spec.markdown, {headerIds: false});
+          if (!htmlDiffer.isEqual(html, spec.html)) {
+            spec.shouldFail = true;
+          }
+        });
+        fs.writeFileSync(`commonmark.${version}.json`, JSON.stringify(specs, null, 2) + '\n');
+      })
+  )
+  .catch((err) => {
+    console.error(err);
+  });