1 files changed, 33 insertions, 0 deletions
diff --git a/test/commissioning.test.ts b/test/commissioning.test.ts
new file mode 100644
index 0000000..676a5e1
--- /dev/null
+++ b/test/commissioning.test.ts
@@ -0,0 +1,33 @@
+import { ManualPairingCodeCodec } from "@matter/main/types";
+import { describe, expect, it } from "vitest";
+import { parsePairingCode } from "../src/commissioning.js";
+
+describe("parsePairingCode", () => {
+  const validCode = ManualPairingCodeCodec.encode({ discriminator: 3840, passcode: 20202021 });
+
+  it("parses a valid 11-digit manual code", () => {
+    const parsed = parsePairingCode(validCode);
+    expect(parsed.passcode).toBe(20202021);
+    expect(parsed.shortDiscriminator).toBe(3840 >> 8);
+  });
+
+  it("accepts hyphens and whitespace", () => {
+    const withHyphens = `${validCode.slice(0, 4)}-${validCode.slice(4, 7)}-${validCode.slice(7)}`;
+    expect(parsePairingCode(` ${withHyphens} `).passcode).toBe(20202021);
+  });
+
+  it("rejects empty input", () => {
+    expect(() => parsePairingCode("")).toThrow(/empty/);
+    expect(() => parsePairingCode("   ")).toThrow(/empty/);
+  });
+
+  it("rejects codes of the wrong length", () => {
+    expect(() => parsePairingCode("12345")).toThrow(/11 or 21 digits/);
+    expect(() => parsePairingCode("123456789012")).toThrow(/11 or 21 digits/);
+  });
+
+  it("rejects codes with an invalid checksum", () => {
+    const corrupted = validCode.slice(0, -1) + ((Number(validCode.at(-1)) + 1) % 10).toString();
+    expect(() => parsePairingCode(corrupted)).toThrow();
+  });
+});