diff --git a/src/test.test.ts b/src/test.test.ts
new file mode 100644
index 0000000..2fca0e1
--- /dev/null
+++ b/src/test.test.ts
@@ -0,0 +1,35 @@
+import { describe, expect, it, vi } from "vitest";
+import type { TestConvex } from "convex-test";
+import type { GenericSchema, SchemaDefinition } from "convex/server";
+import r2Test from "./test.js";
+
+type TestInstance = TestConvex<SchemaDefinition<GenericSchema, boolean>>;
+
+function registeredNames(name?: string) {
+  const registerComponent = vi.fn();
+  const t = { registerComponent } as unknown as TestInstance;
+  if (name === undefined) {
+    r2Test.register(t);
+  } else {
+    r2Test.register(t, name);
+  }
+  return registerComponent.mock.calls.map((call) => call[0] as string);
+}
+
+describe("register", () => {
+  it("registers action-retrier as a child of the r2 component", () => {
+    const names = registeredNames();
+
+    expect(names).toContain("r2");
+    expect(names).toContain("r2/actionRetrier");
+    expect(names).not.toContain("actionRetrier");
+  });
+
+  it("nests action-retrier under a custom component name", () => {
+    const names = registeredNames("storage");
+
+    expect(names).toContain("storage");
+    expect(names).toContain("storage/actionRetrier");
+    expect(names).not.toContain("actionRetrier");
+  });
+});
diff --git a/src/test.ts b/src/test.ts
index 43a54b4..94d2c32 100644
--- a/src/test.ts
+++ b/src/test.ts
@@ -17,7 +17,9 @@ export function register(
   t: TestConvex<SchemaDefinition<GenericSchema, boolean>>,
   name: string = "r2",
 ) {
-  actionRetrier.register(t);
-  return t.registerComponent(name, schema, modules) as unknown as ComponentApi;
+  const component = t.registerComponent(name, schema, modules);
+  // The component installs action-retrier as a child, so it lives at "<name>/actionRetrier".
+  actionRetrier.register(t, `${name}/actionRetrier`);
+  return component as unknown as ComponentApi;
 }
 export default { register, schema, modules };