diff --git a/packages/core/src/submodules/cbor/cbor.spec.ts b/packages/core/src/submodules/cbor/cbor.spec.ts
index 27c18b982b9..57adc8877b5 100644
--- a/packages/core/src/submodules/cbor/cbor.spec.ts
+++ b/packages/core/src/submodules/cbor/cbor.spec.ts
@@ -1,31 +1,74 @@
 import { cbor } from "./cbor";
 
-const toBytes = (str: string) => {
-  const bytes = [] as number[];
-  str.split(/../g).forEach((pair: string) => {
-    bytes.push(parseInt(pair, 16));
-  });
-  return new Uint8Array(bytes);
-};
-
 describe("cbor", () => {
-  it("should", async () => {
-    const encoded = toBytes(
-      "A663696E74FB41DFFFFFFFC66666666E6567696E742065666C6F6174F9FC00636D6170A2666E6567696E742065666C6F6174C2F93E006474727565F56566616C73659F01F4FF"
-    );
-    console.log("encoded", encoded);
-
-    const decoded = cbor.deserialize(encoded);
-    console.log("decoded", decoded);
-
-    const reencoded = cbor.serialize(decoded);
-    console.log("reencoded", reencoded);
+  const examples = [
+    {
+      name: "false",
+      data: false,
+      // special major 7 = 0b111 plus false(20) = 0b10100
+      cbor: new Uint8Array([0b111_10100]),
+    },
+    {
+      name: "true",
+      data: true,
+      // increment from false
+      cbor: new Uint8Array([0b111_10101]),
+    },
+    {
+      name: "null",
+      data: null,
+      // increment from true
+      cbor: new Uint8Array([0b111_10110]),
+    },
+    {
+      name: "undefined",
+      data: undefined,
+      // increment from null
+      cbor: new Uint8Array([0b111_10111]),
+    },
+    {
+      name: "an unsigned zero integer",
+      data: 0,
+      // unsigned int major (0) plus 00's.
+      cbor: new Uint8Array([0b000_00000]),
+    },
+    {
+      name: "negative 1",
+      data: -1,
+      // negative major (1) plus 00's, since -1 is the first negative number.
+      cbor: new Uint8Array([0b001_00000]),
+    },
+    {
+      name: "an empty string",
+      data: "",
+      // string major plus 00's
+      cbor: new Uint8Array([0b011_00000]),
+    },
+    {
+      name: "a short string",
+      data: "hello, world",
+      cbor: new Uint8Array([108, 104, 101, 108, 108, 111, 44, 32, 119, 111, 114, 108, 100]),
+    },
+    {
+      name: "simple object",
+      data: {
+        message: "hello, world",
+      },
+      cbor: new Uint8Array([
+        161, 103, 109, 101, 115, 115, 97, 103, 101, 108, 104, 101, 108, 108, 111, 44, 32, 119, 111, 114, 108, 100,
+      ]),
+    },
+  ];
 
-    const redecoded = cbor.deserialize(reencoded);
-    console.log("redecoded", redecoded);
+  for (const { name, data, cbor: cbor_representation } of examples) {
+    it(`should encode for ${name}`, async () => {
+      const serialized = cbor.serialize(data);
+      expect(serialized).toEqual(cbor_representation);
+    });
 
-    const badobj = {} as any;
-    badobj.a = badobj;
-    cbor.serialize(badobj);
-  });
+    it(`should decode for ${name}`, async () => {
+      const deserialized = cbor.deserialize(cbor_representation);
+      expect(deserialized).toEqual(data);
+    });
+  }
 });