1 files changed, 22 insertions, 0 deletions
diff --git a/cli/tests/unit/cache_api_test.ts b/cli/tests/unit/cache_api_test.ts
index 4d7c6511b..8b84bfc6d 100644
--- a/cli/tests/unit/cache_api_test.ts
+++ b/cli/tests/unit/cache_api_test.ts
@@ -94,3 +94,25 @@ Deno.test(async function cacheApi() {
   assert(await caches.delete(cacheName));
   assertFalse(await caches.has(cacheName));
 });
+
+Deno.test(async function cachePutReaderLock() {
+  const cacheName = "cache-v1";
+  const cache = await caches.open(cacheName);
+
+  const response = new Response("consumed");
+
+  const promise = cache.put(
+    new Request("https://example.com/"),
+    response,
+  );
+
+  assertRejects(
+    async () => {
+      await response.arrayBuffer();
+    },
+    TypeError,
+    "Body already consumed.",
+  );
+
+  await promise;
+});