Set all fields, except ergoTree, optional on mockUTxO function

.changeset/silver-plants-bake.md

@@ -0,0 +1,5 @@
+---
+"@fleet-sdk/mock-chain": patch
+---
+
+Set all fields, except `ergoTree`, optional on `mockUTxO` function

packages/mock-chain/src/objectMocking.spec.ts

@@ -1,10 +1,28 @@
 import { BoxCandidate, hasDuplicatesBy } from "@fleet-sdk/common";
-import { ErgoBox } from "@fleet-sdk/core";
+import { ErgoBox, SAFE_MIN_BOX_VALUE } from "@fleet-sdk/core";
 import { hex, randomBytes } from "@fleet-sdk/crypto";
 import { describe, expect, it } from "vitest";
 import { mockHeaders, mockUTxO } from "./objectMocking";
 
-describe("candidateToUTxO()", () => {
+describe("mockUTxO()", () => {
+  it("Should set default values when omitted", () => {
+    const ergoTree = "0008cd03a621f820dbed198b42a2dca799a571911f2dabbd2e4d441c9aad558da63f084d";
+
+    const utxo = mockUTxO({ ergoTree });
+
+    expect(utxo.boxId).to.have.length(64);
+    expect(utxo.value).to.be.equal(SAFE_MIN_BOX_VALUE);
+    expect(utxo.ergoTree).to.be.equal(ergoTree);
+    expect(utxo.assets).to.be.empty;
+    expect(utxo.creationHeight).to.be.equal(0);
+    expect(utxo.additionalRegisters).to.be.empty;
+
+    expect(utxo.transactionId).to.have.length(64);
+    expect(utxo.index).to.be.equal(0);
+
+    expect(ErgoBox.validate(utxo)).to.be.true;
+  });
+
   it("Should transform a candidate in a valid UTxO", () => {
     const candidate: BoxCandidate<bigint> = {
       ergoTree: "0008cd03a621f820dbed198b42a2dca799a571911f2dabbd2e4d441c9aad558da63f084d",
@@ -21,9 +39,15 @@ describe("candidateToUTxO()", () => {
 
     const utxo = mockUTxO(candidate);
 
-    expect(utxo.boxId).not.to.be.undefined;
-    expect(utxo.transactionId).not.to.be.undefined;
-    expect(utxo.index).not.to.be.undefined;
+    expect(utxo.boxId).to.have.length(64);
+    expect(utxo.value).to.be.equal(candidate.value);
+    expect(utxo.ergoTree).to.be.equal(candidate.ergoTree);
+    expect(utxo.assets).to.be.deep.equal(candidate.assets);
+    expect(utxo.creationHeight).to.be.equal(candidate.creationHeight);
+    expect(utxo.additionalRegisters).to.be.deep.equal(candidate.additionalRegisters);
+
+    expect(utxo.transactionId).to.have.length(64);
+    expect(utxo.index).to.be.equal(0);
 
     expect(ErgoBox.validate(utxo)).to.be.true;
   });

packages/mock-chain/src/objectMocking.ts

@@ -1,14 +1,23 @@
-import { Box, BoxCandidate } from "@fleet-sdk/common";
+import { Box } from "@fleet-sdk/common";
+import { SAFE_MIN_BOX_VALUE } from "@fleet-sdk/core";
 import { hex } from "@fleet-sdk/crypto";
 import { blake2b256, randomBytes } from "@fleet-sdk/crypto";
 import { serializeBox } from "@fleet-sdk/serializer";
 
-export function mockUTxO(candidate: BoxCandidate<bigint>): Box<bigint> {
+type MockBoxOptions = Partial<Omit<Box<bigint>, "boxId">> & { ergoTree: string };
+
+export function mockUTxO(mock: MockBoxOptions): Box<bigint> {
   const box: Box<bigint> = {
     boxId: "",
-    transactionId: hex.encode(randomBytes(32)),
-    index: 0,
-    ...candidate
+
+    value: mock.value ?? SAFE_MIN_BOX_VALUE,
+    ergoTree: mock.ergoTree,
+    assets: mock.assets ?? [],
+    creationHeight: mock.creationHeight ?? 0,
+    additionalRegisters: mock.additionalRegisters ?? {},
+
+    transactionId: mock.transactionId ?? getRandomId(),
+    index: mock.index ?? 0
   };
 
   const bytes = serializeBox(box).toBytes();