P5: fix MDX memory leak (#4939)

* fix(astro): tag jsx vnodes with renderer so errors are properly handled

* chore: fix missing package in test

Co-authored-by: Nate Moore <nate@astro.build>

1 files changed, 30 insertions, 0 deletions

diff --git a/packages/integrations/mdx/test/mdx-infinite-loop.test.js b/packages/integrations/mdx/test/mdx-infinite-loop.test.js
new file mode 100644
index 000000000..c76c24270
--- /dev/null
+++ b/packages/integrations/mdx/test/mdx-infinite-loop.test.js
@@ -0,0 +1,30 @@
+import mdx from '@astrojs/mdx';
+
+import { expect } from 'chai';
+import { loadFixture } from '../../../astro/test/test-utils.js';
+
+describe('MDX Infinite Loop', () => {
+	let fixture;
+
+	before(async () => {
+		fixture = await loadFixture({
+			root: new URL('./fixtures/mdx-infinite-loop/', import.meta.url),
+			integrations: [mdx()],
+		});
+	});
+
+	describe('build', () => {
+		let err;
+		before(async () => {
+			try {
+				await fixture.build();
+			} catch (e) {
+				err = e;
+			}
+		});
+
+		it('does not hang forever if an error is thrown', async () => {
+			expect(!!err).to.be.true;
+		});
+	});
+});