1 files changed, 78 insertions, 0 deletions
diff --git a/packages/app/src/utils/uuid.test.ts b/packages/app/src/utils/uuid.test.ts
new file mode 100644
index 000000000..e6b4e2824
--- /dev/null
+++ b/packages/app/src/utils/uuid.test.ts
@@ -0,0 +1,78 @@
+import { afterEach, describe, expect, test } from "bun:test"
+import { uuid } from "./uuid"
+
+const cryptoDescriptor = Object.getOwnPropertyDescriptor(globalThis, "crypto")
+const secureDescriptor = Object.getOwnPropertyDescriptor(globalThis, "isSecureContext")
+const randomDescriptor = Object.getOwnPropertyDescriptor(Math, "random")
+
+const setCrypto = (value: Partial<Crypto>) => {
+  Object.defineProperty(globalThis, "crypto", {
+    configurable: true,
+    value: value as Crypto,
+  })
+}
+
+const setSecure = (value: boolean) => {
+  Object.defineProperty(globalThis, "isSecureContext", {
+    configurable: true,
+    value,
+  })
+}
+
+const setRandom = (value: () => number) => {
+  Object.defineProperty(Math, "random", {
+    configurable: true,
+    value,
+  })
+}
+
+afterEach(() => {
+  if (cryptoDescriptor) {
+    Object.defineProperty(globalThis, "crypto", cryptoDescriptor)
+  }
+
+  if (secureDescriptor) {
+    Object.defineProperty(globalThis, "isSecureContext", secureDescriptor)
+  }
+
+  if (!secureDescriptor) {
+    delete (globalThis as { isSecureContext?: boolean }).isSecureContext
+  }
+
+  if (randomDescriptor) {
+    Object.defineProperty(Math, "random", randomDescriptor)
+  }
+})
+
+describe("uuid", () => {
+  test("uses randomUUID in secure contexts", () => {
+    setCrypto({ randomUUID: () => "00000000-0000-0000-0000-000000000000" })
+    setSecure(true)
+    expect(uuid()).toBe("00000000-0000-0000-0000-000000000000")
+  })
+
+  test("falls back in insecure contexts", () => {
+    setCrypto({ randomUUID: () => "00000000-0000-0000-0000-000000000000" })
+    setSecure(false)
+    setRandom(() => 0.5)
+    expect(uuid()).toBe("8")
+  })
+
+  test("falls back when randomUUID throws", () => {
+    setCrypto({
+      randomUUID: () => {
+        throw new DOMException("Failed", "OperationError")
+      },
+    })
+    setSecure(true)
+    setRandom(() => 0.5)
+    expect(uuid()).toBe("8")
+  })
+
+  test("falls back when randomUUID is unavailable", () => {
+    setCrypto({})
+    setSecure(true)
+    setRandom(() => 0.5)
+    expect(uuid()).toBe("8")
+  })
+})