fix exchange-timetravel test case with latest exchange version

packages/taler-util/src/talerTypes.ts

@@ -47,6 +47,7 @@ import {
   codecForDuration,
 } from "./time.js";
 import { Amounts, codecForAmountString } from "./amounts.js";
+import { strcmp } from "./helpers.js";
 
 /**
  * Denomination as found in the /keys response from the exchange.
@@ -1125,6 +1126,47 @@ export interface CsDenominationPubKey {
   // FIXME: finish definition
 }
 
+export namespace DenominationPubKey {
+  export function cmp(
+    p1: DenominationPubKey,
+    p2: DenominationPubKey,
+  ): -1 | 0 | 1 {
+    if (p1.cipher < p2.cipher) {
+      return -1;
+    } else if (p1.cipher > p2.cipher) {
+      return +1;
+    }
+    if (
+      p1.cipher === DenomKeyType.LegacyRsa &&
+      p2.cipher === DenomKeyType.LegacyRsa
+    ) {
+      return strcmp(p1.rsa_public_key, p2.rsa_public_key);
+    } else if (
+      p1.cipher === DenomKeyType.Rsa &&
+      p2.cipher === DenomKeyType.Rsa
+    ) {
+      if ((p1.age_mask ?? 0) < (p2.age_mask ?? 0)) {
+        return -1;
+      } else if ((p1.age_mask ?? 0) > (p2.age_mask ?? 0)) {
+        return 1;
+      }
+      return strcmp(p1.rsa_public_key, p2.rsa_public_key);
+    } else {
+      throw Error("unsupported cipher");
+    }
+  }
+
+  export function lift(p1: DenominationPubKey | string): DenominationPubKey {
+    if (typeof p1 === "string") {
+      return {
+        cipher: DenomKeyType.LegacyRsa,
+        rsa_public_key: p1,
+      };
+    }
+    return p1;
+  }
+}
+
 export const codecForDenominationPubKey = () =>
   buildCodecForUnion<DenominationPubKey>()
     .discriminateOn("cipher")

packages/taler-wallet-cli/src/integrationtests/test-exchange-timetravel.ts

@@ -19,17 +19,14 @@
  */
 import {
   codecForExchangeKeysJson,
-  ConfirmPayResultType,
+  DenominationPubKey,
   Duration,
   durationFromSpec,
-  PreparePayResultType,
   stringifyTimestamp,
 } from "@gnu-taler/taler-util";
 import {
   NodeHttpLib,
-  PendingOperationsResponse,
   readSuccessResponseJsonOrThrow,
-  WalletApiOperation,
 } from "@gnu-taler/taler-wallet-core";
 import { makeNoFeeCoinConfig } from "../harness/denomStructures";
 import {
@@ -40,7 +37,7 @@ import {
   MerchantService,
   setupDb,
   WalletCli,
-  getPayto
+  getPayto,
 } from "../harness/harness.js";
 import { startWithdrawViaBank, withdrawViaBank } from "../harness/helpers.js";
 
@@ -192,19 +189,30 @@ export async function runExchangeTimetravelTest(t: GlobalTestState) {
   console.log("=== KEYS RESPONSE 1 ===");
 
   console.log("list issue date", stringifyTimestamp(keys1.list_issue_date));
-  console.log("num denoms", keys1.denoms.length)
+  console.log("num denoms", keys1.denoms.length);
   console.log("denoms", JSON.stringify(denomPubs1, undefined, 2));
 
   console.log("=== KEYS RESPONSE 2 ===");
 
   console.log("list issue date", stringifyTimestamp(keys2.list_issue_date));
-  console.log("num denoms", keys2.denoms.length)
+  console.log("num denoms", keys2.denoms.length);
   console.log("denoms", JSON.stringify(denomPubs2, undefined, 2));
 
   for (const da of denomPubs1) {
-    if (!dps2.has(da.denomPub)) {
+    let found = false;
+    for (const db of denomPubs2) {
+      const d1 = DenominationPubKey.lift(da.denomPub);
+      const d2 = DenominationPubKey.lift(db.denomPub);
+      if (DenominationPubKey.cmp(d1, d2) === 0) {
+        found = true;
+        break;
+      }
+    }
+    if (!found) {
       console.log("=== ERROR ===");
-      console.log(`denomination with public key ${da.denomPub} is not present in new /keys response`);
+      console.log(
+        `denomination with public key ${da.denomPub} is not present in new /keys response`,
+      );
       console.log(
         `the new /keys response was issued ${stringifyTimestamp(
           keys2.list_issue_date,

packages/taler-wallet-core/src/util/coinSelection.ts

@@ -27,7 +27,9 @@ import {
   AmountJson,
   Amounts,
   DenominationPubKey,
-  DenomKeyType, Logger, strcmp
+  DenomKeyType,
+  Logger,
+  strcmp,
 } from "@gnu-taler/taler-util";
 
 const logger = new Logger("coinSelection.ts");
@@ -210,32 +212,6 @@ function tallyFees(
   };
 }
 
-function denomPubCmp(
-  p1: DenominationPubKey,
-  p2: DenominationPubKey,
-): -1 | 0 | 1 {
-  if (p1.cipher < p2.cipher) {
-    return -1;
-  } else if (p1.cipher > p2.cipher) {
-    return +1;
-  }
-  if (
-    p1.cipher === DenomKeyType.LegacyRsa &&
-    p2.cipher === DenomKeyType.LegacyRsa
-  ) {
-    return strcmp(p1.rsa_public_key, p2.rsa_public_key);
-  } else if (p1.cipher === DenomKeyType.Rsa && p2.cipher === DenomKeyType.Rsa) {
-    if ((p1.age_mask ?? 0) < (p2.age_mask ?? 0)) {
-      return -1;
-    } else if ((p1.age_mask ?? 0) > (p2.age_mask ?? 0)) {
-      return 1;
-    }
-    return strcmp(p1.rsa_public_key, p2.rsa_public_key);
-  } else {
-    throw Error("unsupported cipher");
-  }
-}
-
 /**
  * Given a list of candidate coins, select coins to spend under the merchant's
  * constraints.
@@ -302,7 +278,7 @@ export function selectPayCoins(
     (o1, o2) =>
       -Amounts.cmp(o1.availableAmount, o2.availableAmount) ||
       Amounts.cmp(o1.feeDeposit, o2.feeDeposit) ||
-      denomPubCmp(o1.denomPub, o2.denomPub),
+      DenominationPubKey.cmp(o1.denomPub, o2.denomPub),
   );
 
   // FIXME:  Here, we should select coins in a smarter way.