Add unit test

test/unit/proof.test.ts

@@ -0,0 +1,14 @@
+import { expect } from "chai";
+import { ArrayObject, SimpleObject } from "./objects";
+
+describe("create proof", () => {
+  it("should include all leaves of path to composite type", () => {
+    const arrayObj = ArrayObject.defaultTreeBacked();
+    const simpleObj = SimpleObject.defaultTreeBacked();
+    arrayObj.v.push(simpleObj);
+    const proof = arrayObj.createProof([["v"]]);
+    const arrayObj2 = ArrayObject.createTreeBackedFromProofUnsafe(proof);
+    expect(arrayObj2.v[0].valueOf()).to.deep.equal(arrayObj.v[0].valueOf());
+    expect(arrayObj2.v.valueOf()).to.deep.equal(arrayObj.v.valueOf());
+  });
+});