test random trade amounts, fix conversion utils using decimal.js

dist/HavenoClient.js

@@ -1,4 +1,19 @@
 "use strict";
+/*
+ * Copyright Haveno
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 var __importDefault = (this && this.__importDefault) || function (mod) {
     return (mod && mod.__esModule) ? mod : { "default": mod };
 };

dist/protobuf/grpc_pb.d.ts

@@ -1603,11 +1603,14 @@ export class OfferInfo extends jspb.Message {
   getMinAmount(): string;
   setMinAmount(value: string): OfferInfo;
 
-  getVolume(): string;
-  setVolume(value: string): OfferInfo;
+  getMakerFeePct(): number;
+  setMakerFeePct(value: number): OfferInfo;
 
-  getMinVolume(): string;
-  setMinVolume(value: string): OfferInfo;
+  getTakerFeePct(): number;
+  setTakerFeePct(value: number): OfferInfo;
+
+  getPenaltyFeePct(): number;
+  setPenaltyFeePct(value: number): OfferInfo;
 
   getBuyerSecurityDepositPct(): number;
   setBuyerSecurityDepositPct(value: number): OfferInfo;
@@ -1615,6 +1618,12 @@ export class OfferInfo extends jspb.Message {
   getSellerSecurityDepositPct(): number;
   setSellerSecurityDepositPct(value: number): OfferInfo;
 
+  getVolume(): string;
+  setVolume(value: string): OfferInfo;
+
+  getMinVolume(): string;
+  setMinVolume(value: string): OfferInfo;
+
   getTriggerPrice(): string;
   setTriggerPrice(value: string): OfferInfo;
 
@@ -1639,9 +1648,6 @@ export class OfferInfo extends jspb.Message {
   getState(): string;
   setState(value: string): OfferInfo;
 
-  getMakerFee(): string;
-  setMakerFee(value: string): OfferInfo;
-
   getIsActivated(): boolean;
   setIsActivated(value: boolean): OfferInfo;
 
@@ -1686,10 +1692,13 @@ export namespace OfferInfo {
     marketPriceMarginPct: number,
     amount: string,
     minAmount: string,
-    volume: string,
-    minVolume: string,
+    makerFeePct: number,
+    takerFeePct: number,
+    penaltyFeePct: number,
     buyerSecurityDepositPct: number,
     sellerSecurityDepositPct: number,
+    volume: string,
+    minVolume: string,
     triggerPrice: string,
     paymentAccountId: string,
     paymentMethodId: string,
@@ -1698,7 +1707,6 @@ export namespace OfferInfo {
     counterCurrencyCode: string,
     date: number,
     state: string,
-    makerFee: string,
     isActivated: boolean,
     isMyOffer: boolean,
     ownerNodeAddress: string,
@@ -2647,12 +2655,15 @@ export class TradeInfo extends jspb.Message {
   getRole(): string;
   setRole(value: string): TradeInfo;
 
-  getTakerFee(): string;
-  setTakerFee(value: string): TradeInfo;
-
   getAmount(): string;
   setAmount(value: string): TradeInfo;
 
+  getMakerFee(): string;
+  setMakerFee(value: string): TradeInfo;
+
+  getTakerFee(): string;
+  setTakerFee(value: string): TradeInfo;
+
   getBuyerSecurityDeposit(): string;
   setBuyerSecurityDeposit(value: string): TradeInfo;
 
@@ -2763,8 +2774,9 @@ export namespace TradeInfo {
     shortId: string,
     date: number,
     role: string,
-    takerFee: string,
     amount: string,
+    makerFee: string,
+    takerFee: string,
     buyerSecurityDeposit: string,
     sellerSecurityDeposit: string,
     buyerDepositTxFee: string,

dist/protobuf/pb_pb.d.ts

@@ -191,6 +191,11 @@ export class NetworkEnvelope extends jspb.Message {
   hasMediatedPayoutTxPublishedMessage(): boolean;
   clearMediatedPayoutTxPublishedMessage(): NetworkEnvelope;
 
+  getFileTransferPart(): FileTransferPart | undefined;
+  setFileTransferPart(value?: FileTransferPart): NetworkEnvelope;
+  hasFileTransferPart(): boolean;
+  clearFileTransferPart(): NetworkEnvelope;
+
   getMessageCase(): NetworkEnvelope.MessageCase;
 
   serializeBinary(): Uint8Array;
@@ -241,6 +246,7 @@ export namespace NetworkEnvelope {
     chatMessage?: ChatMessage.AsObject,
     mediatedPayoutTxSignatureMessage?: MediatedPayoutTxSignatureMessage.AsObject,
     mediatedPayoutTxPublishedMessage?: MediatedPayoutTxPublishedMessage.AsObject,
+    fileTransferPart?: FileTransferPart.AsObject,
   }
 
   export enum MessageCase { 
@@ -282,6 +288,7 @@ export namespace NetworkEnvelope {
     CHAT_MESSAGE = 36,
     MEDIATED_PAYOUT_TX_SIGNATURE_MESSAGE = 37,
     MEDIATED_PAYOUT_TX_PUBLISHED_MESSAGE = 38,
+    FILE_TRANSFER_PART = 39,
   }
 }
 
@@ -417,6 +424,48 @@ export namespace GetUpdatedDataRequest {
   }
 }
 
+export class FileTransferPart extends jspb.Message {
+  getSenderNodeAddress(): NodeAddress | undefined;
+  setSenderNodeAddress(value?: NodeAddress): FileTransferPart;
+  hasSenderNodeAddress(): boolean;
+  clearSenderNodeAddress(): FileTransferPart;
+
+  getUid(): string;
+  setUid(value: string): FileTransferPart;
+
+  getTradeId(): string;
+  setTradeId(value: string): FileTransferPart;
+
+  getTraderId(): number;
+  setTraderId(value: number): FileTransferPart;
+
+  getSeqNumOrFileLength(): number;
+  setSeqNumOrFileLength(value: number): FileTransferPart;
+
+  getMessageData(): Uint8Array | string;
+  getMessageData_asU8(): Uint8Array;
+  getMessageData_asB64(): string;
+  setMessageData(value: Uint8Array | string): FileTransferPart;
+
+  serializeBinary(): Uint8Array;
+  toObject(includeInstance?: boolean): FileTransferPart.AsObject;
+  static toObject(includeInstance: boolean, msg: FileTransferPart): FileTransferPart.AsObject;
+  static serializeBinaryToWriter(message: FileTransferPart, writer: jspb.BinaryWriter): void;
+  static deserializeBinary(bytes: Uint8Array): FileTransferPart;
+  static deserializeBinaryFromReader(message: FileTransferPart, reader: jspb.BinaryReader): FileTransferPart;
+}
+
+export namespace FileTransferPart {
+  export type AsObject = {
+    senderNodeAddress?: NodeAddress.AsObject,
+    uid: string,
+    tradeId: string,
+    traderId: number,
+    seqNumOrFileLength: number,
+    messageData: Uint8Array | string,
+  }
+}
+
 export class GetPeersRequest extends jspb.Message {
   getSenderNodeAddress(): NodeAddress | undefined;
   setSenderNodeAddress(value?: NodeAddress): GetPeersRequest;
@@ -962,8 +1011,8 @@ export namespace PrefixedSealedAndSignedMessage {
 }
 
 export class InitTradeRequest extends jspb.Message {
-  getTradeId(): string;
-  setTradeId(value: string): InitTradeRequest;
+  getOfferId(): string;
+  setOfferId(value: string): InitTradeRequest;
 
   getSenderNodeAddress(): NodeAddress | undefined;
   setSenderNodeAddress(value?: NodeAddress): InitTradeRequest;
@@ -981,9 +1030,6 @@ export class InitTradeRequest extends jspb.Message {
   getTradePrice(): number;
   setTradePrice(value: number): InitTradeRequest;
 
-  getTradeFee(): number;
-  setTradeFee(value: number): InitTradeRequest;
-
   getAccountId(): string;
   setAccountId(value: string): InitTradeRequest;
 
@@ -1046,12 +1092,11 @@ export class InitTradeRequest extends jspb.Message {
 
 export namespace InitTradeRequest {
   export type AsObject = {
-    tradeId: string,
+    offerId: string,
     senderNodeAddress?: NodeAddress.AsObject,
     pubKeyRing?: PubKeyRing.AsObject,
     tradeAmount: number,
     tradePrice: number,
-    tradeFee: number,
     accountId: string,
     paymentAccountId: string,
     paymentMethodId: string,
@@ -2736,6 +2781,21 @@ export class OfferPayload extends jspb.Message {
   getMinAmount(): number;
   setMinAmount(value: number): OfferPayload;
 
+  getMakerFeePct(): number;
+  setMakerFeePct(value: number): OfferPayload;
+
+  getTakerFeePct(): number;
+  setTakerFeePct(value: number): OfferPayload;
+
+  getPenaltyFeePct(): number;
+  setPenaltyFeePct(value: number): OfferPayload;
+
+  getBuyerSecurityDepositPct(): number;
+  setBuyerSecurityDepositPct(value: number): OfferPayload;
+
+  getSellerSecurityDepositPct(): number;
+  setSellerSecurityDepositPct(value: number): OfferPayload;
+
   getBaseCurrencyCode(): string;
   setBaseCurrencyCode(value: string): OfferPayload;
 
@@ -2770,15 +2830,6 @@ export class OfferPayload extends jspb.Message {
   getBlockHeightAtOfferCreation(): number;
   setBlockHeightAtOfferCreation(value: number): OfferPayload;
 
-  getMakerFee(): number;
-  setMakerFee(value: number): OfferPayload;
-
-  getBuyerSecurityDepositPct(): number;
-  setBuyerSecurityDepositPct(value: number): OfferPayload;
-
-  getSellerSecurityDepositPct(): number;
-  setSellerSecurityDepositPct(value: number): OfferPayload;
-
   getMaxTradeLimit(): number;
   setMaxTradeLimit(value: number): OfferPayload;
 
@@ -2844,6 +2895,11 @@ export namespace OfferPayload {
     useMarketBasedPrice: boolean,
     amount: number,
     minAmount: number,
+    makerFeePct: number,
+    takerFeePct: number,
+    penaltyFeePct: number,
+    buyerSecurityDepositPct: number,
+    sellerSecurityDepositPct: number,
     baseCurrencyCode: string,
     counterCurrencyCode: string,
     paymentMethodId: string,
@@ -2854,9 +2910,6 @@ export namespace OfferPayload {
     acceptedBankIdsList: Array<string>,
     versionNr: string,
     blockHeightAtOfferCreation: number,
-    makerFee: number,
-    buyerSecurityDepositPct: number,
-    sellerSecurityDepositPct: number,
     maxTradeLimit: number,
     maxTradePeriod: number,
     useAutoClose: boolean,
@@ -6027,9 +6080,6 @@ export class Trade extends jspb.Message {
   getAmount(): number;
   setAmount(value: number): Trade;
 
-  getTakerFee(): number;
-  setTakerFee(value: number): Trade;
-
   getTakeOfferDate(): number;
   setTakeOfferDate(value: number): Trade;
 
@@ -6124,7 +6174,6 @@ export namespace Trade {
     payoutTxHex: string,
     payoutTxKey: string,
     amount: number,
-    takerFee: number,
     takeOfferDate: number,
     price: number,
     state: Trade.State,

dist/types/HavenoError.js

@@ -1,4 +1,19 @@
 "use strict";
+/*
+ * Copyright Haveno
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 Object.defineProperty(exports, "__esModule", { value: true });
 /**
  * Haveno error with message and code.

dist/types/HavenoError.js.map

@@ -1 +1 @@
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+{"version":3,"file":"HavenoError.js","sourceRoot":"","sources":["../../src/types/HavenoError.ts"],"names":[],"mappings":";AAAA;;;;;;;;;;;;;;GAcG;;AAGH;;GAEG;AACH,MAAqB,WAAY,SAAQ,KAAK;IAI5C;;;;;OAKG;IACH,YAAY,GAAW,EAAE,IAAa;QACpC,KAAK,CAAC,GAAG,CAAC,CAAC;QACX,IAAI,CAAC,IAAI,GAAG,IAAI,CAAC;IACnB,CAAC;CACF;AAdD,8BAcC"}

dist/utils/HavenoUtils.js

@@ -1,10 +1,26 @@
 "use strict";
+/*
+ * Copyright Haveno
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 var __importDefault = (this && this.__importDefault) || function (mod) {
     return (mod && mod.__esModule) ? mod : { "default": mod };
 };
 Object.defineProperty(exports, "__esModule", { value: true });
 const assert_1 = __importDefault(require("assert"));
 const console_1 = __importDefault(require("console"));
+const decimal_js_1 = __importDefault(require("decimal.js"));
 const pb_pb_1 = require("../protobuf/pb_pb");
 /**
  * Collection of utilities for working with Haveno.
@@ -132,7 +148,7 @@ class HavenoUtils {
             amountAtomicUnits = BigInt(amountAtomicUnits);
         const quotient = amountAtomicUnits / HavenoUtils.AU_PER_XMR;
         const remainder = amountAtomicUnits % HavenoUtils.AU_PER_XMR;
-        return Number(quotient) + Number(remainder) / Number(HavenoUtils.AU_PER_XMR);
+        return new decimal_js_1.default(quotient.toString()).plus(new decimal_js_1.default(remainder.toString()).div(HavenoUtils.AU_PER_XMR.toString())).toNumber();
     }
     // ------------------------- PAYMENT ACCOUNT FORMS --------------------------
     /**

dist/utils/TaskLooper.js

@@ -1,4 +1,19 @@
 "use strict";
+/*
+ * Copyright Haveno
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 Object.defineProperty(exports, "__esModule", { value: true });
 /**
  * Run a task in a fixed period loop.

dist/utils/TaskLooper.js.map

@@ -1 +1 @@
-{"version":3,"file":"TaskLooper.js","sourceRoot":"","sources":["../../src/utils/TaskLooper.ts"],"names":[],"mappings":";;AAAA;;GAEG;AACH,MAAqB,UAAU;IAO7B;;;;OAIG;IACH,YAAY,EAAuB;QACjC,IAAI,CAAC,GAAG,GAAG,EAAE,CAAC;QACd,IAAI,CAAC,UAAU,GAAG,KAAK,CAAC;QACxB,IAAI,CAAC,UAAU,GAAG,KAAK,CAAC;IAC1B,CAAC;IAED;;;;OAIG;IACH,KAAK,CAAC,UAAkB;QACtB,IAAI,UAAU,IAAI,CAAC;YAAE,MAAM,IAAI,KAAK,CAAC,yCAAyC,CAAC,CAAC;QAChF,IAAI,IAAI,CAAC,UAAU;YAAE,OAAO;QAC5B,IAAI,CAAC,UAAU,GAAG,IAAI,CAAC;QACvB,IAAI,CAAC,QAAQ,CAAC,UAAU,CAAC,CAAC;IAC5B,CAAC;IAED;;OAEG;IACH,IAAI;QACF,IAAI,CAAC,IAAI,CAAC,UAAU;YAAE,MAAM,IAAI,KAAK,CAAC,iDAAiD,CAAC,CAAC;QACzF,IAAI,CAAC,UAAU,GAAG,KAAK,CAAC;QACxB,YAAY,CAAC,IAAI,CAAC,QAAS,CAAC,CAAC;QAC7B,IAAI,CAAC,QAAQ,GAAG,SAAS,CAAC;IAC5B,CAAC;IAED,KAAK,CAAC,QAAQ,CAAC,UAAkB;QAC/B,IAAI,CAAC,UAAU,GAAG,IAAI,CAAC;QACvB,OAAO,IAAI,CAAC,UAAU,EAAE;YACtB,MAAM,SAAS,GAAG,IAAI,CAAC,GAAG,EAAE,CAAC;YAC7B,MAAM,IAAI,CAAC,GAAG,EAAE,CAAC;YACjB,IAAI,IAAI,CAAC,UAAU;gBAAE,MAAM,IAAI,OAAO,CAAC,CAAC,OAAO,EAAE,EAAE,GAAG,IAAI,CAAC,QAAQ,GAAG,UAAU,CAAC,OAAO,EAAE,UAAU,GAAG,CAAC,IAAI,CAAC,GAAG,EAAE,GAAG,SAAS,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC;SACtI;QACD,IAAI,CAAC,UAAU,GAAG,KAAK,CAAC;IAC1B,CAAC;CACF;AAjDD,6BAiDC"}
+{"version":3,"file":"TaskLooper.js","sourceRoot":"","sources":["../../src/utils/TaskLooper.ts"],"names":[],"mappings":";AAAA;;;;;;;;;;;;;;GAcG;;AAGH;;GAEG;AACH,MAAqB,UAAU;IAO7B;;;;OAIG;IACH,YAAY,EAAuB;QACjC,IAAI,CAAC,GAAG,GAAG,EAAE,CAAC;QACd,IAAI,CAAC,UAAU,GAAG,KAAK,CAAC;QACxB,IAAI,CAAC,UAAU,GAAG,KAAK,CAAC;IAC1B,CAAC;IAED;;;;OAIG;IACH,KAAK,CAAC,UAAkB;QACtB,IAAI,UAAU,IAAI,CAAC;YAAE,MAAM,IAAI,KAAK,CAAC,yCAAyC,CAAC,CAAC;QAChF,IAAI,IAAI,CAAC,UAAU;YAAE,OAAO;QAC5B,IAAI,CAAC,UAAU,GAAG,IAAI,CAAC;QACvB,IAAI,CAAC,QAAQ,CAAC,UAAU,CAAC,CAAC;IAC5B,CAAC;IAED;;OAEG;IACH,IAAI;QACF,IAAI,CAAC,IAAI,CAAC,UAAU;YAAE,MAAM,IAAI,KAAK,CAAC,iDAAiD,CAAC,CAAC;QACzF,IAAI,CAAC,UAAU,GAAG,KAAK,CAAC;QACxB,YAAY,CAAC,IAAI,CAAC,QAAS,CAAC,CAAC;QAC7B,IAAI,CAAC,QAAQ,GAAG,SAAS,CAAC;IAC5B,CAAC;IAED,KAAK,CAAC,QAAQ,CAAC,UAAkB;QAC/B,IAAI,CAAC,UAAU,GAAG,IAAI,CAAC;QACvB,OAAO,IAAI,CAAC,UAAU,EAAE;YACtB,MAAM,SAAS,GAAG,IAAI,CAAC,GAAG,EAAE,CAAC;YAC7B,MAAM,IAAI,CAAC,GAAG,EAAE,CAAC;YACjB,IAAI,IAAI,CAAC,UAAU;gBAAE,MAAM,IAAI,OAAO,CAAC,CAAC,OAAO,EAAE,EAAE,GAAG,IAAI,CAAC,QAAQ,GAAG,UAAU,CAAC,OAAO,EAAE,UAAU,GAAG,CAAC,IAAI,CAAC,GAAG,EAAE,GAAG,SAAS,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC;SACtI;QACD,IAAI,CAAC,UAAU,GAAG,KAAK,CAAC;IAC1B,CAAC;CACF;AAjDD,6BAiDC"}

package-lock.json

@@ -22,6 +22,7 @@
         "@typescript-eslint/eslint-plugin": "5.53.0",
         "@typescript-eslint/parser": "^5.53.0",
         "babel-jest": "^29.4.3",
+        "decimal.js": "^10.4.3",
         "eslint": "^8.35.0",
         "eslint-config-prettier": "^8.6.0",
         "eslint-import-resolver-typescript": "^3.5.3",

package.json

@@ -48,6 +48,7 @@
     "@typescript-eslint/eslint-plugin": "5.53.0",
     "@typescript-eslint/parser": "^5.53.0",
     "babel-jest": "^29.4.3",
+    "decimal.js": "^10.4.3",
     "eslint": "^8.35.0",
     "eslint-config-prettier": "^8.6.0",
     "eslint-import-resolver-typescript": "^3.5.3",

src/HavenoClient.test.ts

@@ -125,7 +125,7 @@ const defaultTradeConfig: Partial<TradeContext> = {
   takeOffer: true,
   awaitFundsToMakeOffer: true,
   direction: OfferDirection.BUY, // buy or sell xmr
-  offerAmount: HavenoUtils.xmrToAtomicUnits(.2), // amount of xmr to trade
+  offerAmount: 193312996088n,
   offerMinAmount: undefined,
   assetCode: "usd", // counter asset to trade
   makerPaymentAccountId: undefined,
@@ -309,8 +309,12 @@ class TradeContext {
     str += "\nSecurity deposit percent: " + this.securityDepositPct;
     str += "\nMaker balance before offer: " + this.maker.balancesBeforeOffer?.getBalance();
     str += "\nMaker split output tx fee: " + this.maker.splitOutputTxFee;
-    if (this.offer) str += "\nMaker trade fee: " + this.offer!.getMakerFee();
+    if (this.offer) {
+      str += "\nMaker fee percent: " + this.offer!.getMakerFeePct();
+      str += "\nTaker fee percent: " + this.offer!.getTakerFeePct();
+    }
     if (this.arbitrator && this.arbitrator!.trade) {
+      str += "\nMaker trade fee: " + this.arbitrator?.trade?.getMakerFee();
       str += "\nMaker deposit tx id: " + this.arbitrator!.trade!.getMakerDepositTxId();
       if (this.arbitrator!.trade!.getMakerDepositTxId()) {
         let tx = await monerod.getTx(this.arbitrator!.trade!.getMakerDepositTxId());
@@ -1612,11 +1616,14 @@ test("Can complete a trade within a range", async () => {
   let takerPaymentAccount = await createPaymentAccount(user2, assetCode, paymentMethodId);
 
   // execute trade
+  const offerAmount = HavenoUtils.xmrToAtomicUnits(2);
+  const offerMinAmount = HavenoUtils.xmrToAtomicUnits(.15);
+  const tradeAmount = getRandomBigIntWithinRange(offerMinAmount, offerAmount);
   await executeTrade({
     price: 142.23,
-    offerAmount: HavenoUtils.xmrToAtomicUnits(2),
-    offerMinAmount: HavenoUtils.xmrToAtomicUnits(.15),
-    tradeAmount: HavenoUtils.xmrToAtomicUnits(1),
+    offerAmount: offerAmount,
+    offerMinAmount: offerMinAmount,
+    tradeAmount: tradeAmount,
     testPayoutUnlocked: true, // override to test unlock
     makerPaymentAccountId: makerPaymentAccount.getId(),
     takerPaymentAccountId: takerPaymentAccount.getId(),
@@ -1627,10 +1634,11 @@ test("Can complete a trade within a range", async () => {
 
 test("Can complete trades at the same time (CI, sanity check)", async () => {
 
-  // create trade contexts with customized payment methods
+  // create trade contexts with customized payment methods and random amounts
   const ctxs = getTradeContexts(TestConfig.assetCodes.length);
   for (let i = 0; i < ctxs.length; i++) {
     ctxs[i].assetCode = TestConfig.assetCodes[i]; // test each asset code
+    ctxs[i].offerAmount = getRandomBigIntWithinPercent(TestConfig.trade.offerAmount!, 0.15);
     let paymentMethodId;
     if (ctxs[i].assetCode === "USD") paymentMethodId = "zelle";
     if (ctxs[i].assetCode === "EUR") paymentMethodId = "revolut";
@@ -1666,7 +1674,8 @@ test("Can complete all trade combinations (stress)", async () => {
               buyerDisputeContext: BUYER_DISPUTE_OPTS[k],
               sellerDisputeContext: SELLER_DISPUTE_OPTS[l],
               disputeWinner: DISPUTE_WINNER_OPTS[m],
-              disputeSummary: "After much deliberation, " + (DISPUTE_WINNER_OPTS[m] === DisputeResult.Winner.BUYER ? "buyer" : "seller") + " is winner"
+              disputeSummary: "After much deliberation, " + (DISPUTE_WINNER_OPTS[m] === DisputeResult.Winner.BUYER ? "buyer" : "seller") + " is winner",
+              offerAmount: getRandomBigIntWithinPercent(TestConfig.trade.offerAmount!, 0.15)
             };
             ctxs.push(Object.assign({}, new TradeContext(TestConfig.trade), ctx));
           }
@@ -2768,7 +2777,7 @@ async function takeOffer(ctxP: Partial<TradeContext>): Promise<TradeInfo> {
     ctx.taker.balancesAfterTake = await ctx.taker.havenod!.getBalances();
     ctx.maker.depositTxFee = BigInt(ctx.maker.depositTx!.getFee());
     ctx.taker.depositTxFee = BigInt(ctx.taker.depositTx!.getFee());
-    ctx.maker.tradeFee = BigInt(trade.getOffer()!.getMakerFee());
+    ctx.maker.tradeFee = BigInt(trade.getMakerFee());
     ctx.taker.tradeFee = BigInt(trade.getTakerFee());
     ctx.getBuyer().securityDepositActual = BigInt(trade.getBuyerSecurityDeposit()!);
     ctx.getSeller().securityDepositActual = BigInt(trade.getSellerSecurityDeposit()!);
@@ -2832,7 +2841,7 @@ async function testTrade(trade: TradeInfo, ctx: TradeContext) {
   expect(BigInt(trade.getAmount())).toEqual(ctx!.tradeAmount);
 
   // test security deposit = max(.1, trade amount * security deposit pct)
-  const expectedSecurityDeposit = HavenoUtils.xmrToAtomicUnits(Math.max(.1, HavenoUtils.atomicUnitsToXmr(ctx.tradeAmount!) * ctx.securityDepositPct!));
+  const expectedSecurityDeposit = HavenoUtils.max(HavenoUtils.xmrToAtomicUnits(.1), HavenoUtils.multiply(ctx.tradeAmount!, ctx.securityDepositPct!));
   expect(BigInt(trade.getBuyerSecurityDeposit())).toEqual(expectedSecurityDeposit - ctx.getBuyer().depositTxFee);
   expect(BigInt(trade.getSellerSecurityDeposit())).toEqual(expectedSecurityDeposit - ctx.getSeller().depositTxFee);
 
@@ -3772,6 +3781,18 @@ function testDestination(destination: XmrDestination) {
   expect(BigInt(destination.getAmount())).toBeGreaterThan(0n);
 }
 
+function getRandomBigIntWithinPercent(base: bigint, percent: number): bigint {
+  return getRandomBigIntWithinRange(base - multiply(base, percent), base + multiply(base, percent));
+}
+
+function multiply(amount: bigint, multiplier: number): bigint {
+  return BigInt(Math.round(Number(amount) * multiplier));
+}
+
+function getRandomBigIntWithinRange(min: bigint, max: bigint): bigint {
+  return BigInt(Math.floor(Math.random() * (Number(max) - Number(min))) + Number(min));
+}
+
 function getRandomAssetCode() {
   return TestConfig.assetCodes[moneroTs.GenUtils.getRandomInt(0, TestConfig.assetCodes.length - 1)];
 }

src/utils/HavenoUtils.ts

@@ -17,6 +17,7 @@
 
 import assert from "assert";
 import console from "console";
+import Decimal from 'decimal.js';
 import { PaymentAccountForm, PaymentAccountFormField } from "../protobuf/pb_pb";
 
 /**
@@ -101,14 +102,45 @@ export default class HavenoUtils {
   }
 
   /**
-   * Divide one bigint by another.
+   * Convert XMR to atomic units.
    * 
-   * @param {bigint} a dividend
-   * @param {bigint} b divisor
+   * @param {number | string} amountXmr - amount in XMR to convert to atomic units
+   * @return {bigint} amount in atomic units
+   */
+  static xmrToAtomicUnits(amountXmr: number | string): bigint {
+    return BigInt(new Decimal(amountXmr).mul(HavenoUtils.AU_PER_XMR.toString()).toFixed(0));
+  }
+  
+  /**
+   * Convert atomic units to XMR.
+   * 
+   * @param {bigint | string} amountAtomicUnits - amount in atomic units to convert to XMR
+   * @return {number} amount in XMR 
+   */
+  static atomicUnitsToXmr(amountAtomicUnits: bigint | string): number {
+    return new Decimal(amountAtomicUnits.toString()).div(HavenoUtils.AU_PER_XMR.toString()).toNumber();
+  }
+
+  /**
+   * Divide one atomic units by another.
+   * 
+   * @param {bigint} au1 dividend
+   * @param {bigint} au2 divisor
    * @returns {number} the result
    */
-  static divideBI(a: bigint, b: bigint): number {
-    return Number(a * 10000000000000n / b) / 10000000000000;
+  static divide(au1: bigint, au2: bigint): number {
+    return this.atomicUnitsToXmr(au1) / this.atomicUnitsToXmr(au2);
+  }
+
+  /**
+   * Multiply a bigint by a number or bigint.
+   * 
+   * @param a bigint to multiply
+   * @param b bigint or number to multiply by
+   * @returns the product as a bigint
+   */
+  static multiply(a: bigint, b: number | bigint): bigint {
+    return BigInt((new Decimal(a.toString()).mul(new Decimal(b.toString())).toFixed(0)));
   }
 
   /**
@@ -119,7 +151,7 @@ export default class HavenoUtils {
    * @returns {number} the percentage difference as a float
    */
   static percentageDiff(a: bigint, b: bigint): number {
-    return HavenoUtils.divideBI(a - b, a);
+    return HavenoUtils.divide(a - b, a);
   }
 
   /**
@@ -133,33 +165,14 @@ export default class HavenoUtils {
   }
 
   /**
-   * Convert XMR to atomic units.
+   * Return the maximum of two bigints.
    * 
-   * @param {number | string} amountXmr - amount in XMR to convert to atomic units
-   * @return {bigint} amount in atomic units
+   * @param {bigint} bi1 first bigint
+   * @param {bigint} bi2 second bigint
+   * @returns {bigint} the maximum of the two bigints
    */
-  static xmrToAtomicUnits(amountXmr: number | string): bigint {
-    if (typeof amountXmr === "number") amountXmr = "" + amountXmr;
-    let decimalDivisor = 1;
-    let decimalIdx = amountXmr.indexOf('.');
-    if (decimalIdx > -1) {
-      decimalDivisor = Math.pow(10, amountXmr.length - decimalIdx - 1);
-      amountXmr = amountXmr.slice(0, decimalIdx) + amountXmr.slice(decimalIdx + 1);
-    }
-    return BigInt(amountXmr) * BigInt(HavenoUtils.AU_PER_XMR) / BigInt(decimalDivisor);
-  }
-  
-  /**
-   * Convert atomic units to XMR.
-   * 
-   * @param {bigint | string} amountAtomicUnits - amount in atomic units to convert to XMR
-   * @return {number} amount in XMR 
-   */
-  static atomicUnitsToXmr(amountAtomicUnits: bigint | string) {
-    if (typeof amountAtomicUnits === "string") amountAtomicUnits = BigInt(amountAtomicUnits);
-    const quotient: bigint = amountAtomicUnits / HavenoUtils.AU_PER_XMR;
-    const remainder: bigint = amountAtomicUnits % HavenoUtils.AU_PER_XMR;
-    return Number(quotient) + Number(remainder) / Number(HavenoUtils.AU_PER_XMR);
+  static max(bi1: bigint, bi2: bigint): bigint {
+    return bi1 > bi2 ? bi1 : bi2;
   }
 
   // ------------------------- PAYMENT ACCOUNT FORMS --------------------------