feat: add get txs hashes fallback on ciphertrace

lib/plugins/wallet/mock-wallet/mock-wallet.js

@@ -10,9 +10,14 @@ const SECONDS = 1000
 const PUBLISH_TIME = 3 * SECONDS
 const AUTHORIZE_TIME = PUBLISH_TIME + 5 * SECONDS
 const CONFIRM_TIME = AUTHORIZE_TIME + 10 * SECONDS
+const SUPPORTED_COINS = coinUtils.cryptoCurrencies()
 
 let t0
 
+const checkCryptoCode = (cryptoCode) => !_.includes(cryptoCode, SUPPORTED_COINS)
+  ? Promise.reject(new Error('Unsupported crypto: ' + cryptoCode))
+  : Promise.resolve()
+
 function _balance (cryptoCode) {
   const cryptoRec = coinUtils.getCryptoCurrency(cryptoCode)
   const unitScale = cryptoRec.unitScale
@@ -107,7 +112,15 @@ function getStatus (account, tx, requested, settings, operatorId) {
 
   console.log('[%s] DEBUG: Mock wallet has confirmed transaction [%s]', cryptoCode, toAddress.slice(0, 5))
 
-  return Promise.resolve({status: 'confirmed'})
+  return Promise.resolve({ status: 'confirmed' })
+}
+
+function getTxHashesByAddress (cryptoCode, address) {
+  return new Promise((resolve, reject) => {
+    setTimeout(() => {
+      return resolve([]) // TODO: should return something other than empty list?
+    }, 100)
+  })
 }
 
 function checkBlockchainStatus (cryptoCode) {
@@ -123,5 +136,6 @@ module.exports = {
   newAddress,
   getStatus,
   newFunding,
-  checkBlockchainStatus
+  checkBlockchainStatus,
+  getTxHashesByAddress
 }