1 files changed, 25 insertions, 0 deletions
diff --git a/packages/app/src/context/command.test.ts b/packages/app/src/context/command.test.ts
new file mode 100644
index 000000000..2b956287c
--- /dev/null
+++ b/packages/app/src/context/command.test.ts
@@ -0,0 +1,25 @@
+import { describe, expect, test } from "bun:test"
+import { upsertCommandRegistration } from "./command"
+
+describe("upsertCommandRegistration", () => {
+  test("replaces keyed registrations", () => {
+    const one = () => [{ id: "one", title: "One" }]
+    const two = () => [{ id: "two", title: "Two" }]
+
+    const next = upsertCommandRegistration([{ key: "layout", options: one }], { key: "layout", options: two })
+
+    expect(next).toHaveLength(1)
+    expect(next[0]?.options).toBe(two)
+  })
+
+  test("keeps unkeyed registrations additive", () => {
+    const one = () => [{ id: "one", title: "One" }]
+    const two = () => [{ id: "two", title: "Two" }]
+
+    const next = upsertCommandRegistration([{ options: one }], { options: two })
+
+    expect(next).toHaveLength(2)
+    expect(next[0]?.options).toBe(two)
+    expect(next[1]?.options).toBe(one)
+  })
+})