test all in source examples

tutorial/test/examples.test.mjs

@@ -0,0 +1,15 @@
+import { queryCode } from '../../repl/src/runtime.mjs';
+import { describe, it } from 'vitest';
+import doc from '../../doc.json';
+
+describe('runs examples', () => {
+  const { docs } = doc;
+  docs.forEach(async (doc) => {
+    doc.examples?.forEach((example, i) => {
+      it(`example "${doc.name}" example index ${i}`, async ({ expect }) => {
+        const haps = await queryCode(example, 4);
+        expect(haps).toMatchSnapshot();
+      });
+    });
+  });
+});