diff --git a/src/mergeQueueFail.test.ts b/src/mergeQueueFail.test.ts
new file mode 100644
index 0000000..cd7b6ae
--- /dev/null
+++ b/src/mergeQueueFail.test.ts
@@ -0,0 +1,12 @@
+import * as assert from "node:assert";
+import child_process from "node:child_process";
+import test from "node:test";
+
+test("マージキューだけ落ちるテスト", async () => {
+  const stdout = child_process
+    .execSync("git branch --show-current")
+    .toString()
+    .trim();
+
+  assert.ok(!stdout.includes("gh-readonly-queue"));
+});