refactor: move fixtures closer to tests (part 2) (#1561)

* move echo

* move fee

* move subscribe/unsubscribe

* move ledger_current

* move ledger_data

* move submit/submit_multisigned

* remove account_tx/account_offers/gateway_balances

* move account_info

* remove ledger_entry

* remove tx

* remove account_lines

* remove ripple_path_find

* remove ledger

* remove book_offers

* move ping

* remove global_config

* move test_command

* additional mock-rippled cleanup

* add explanatory comment to mock.addResponse

test/connection.ts

@@ -4,6 +4,7 @@ import assert from 'assert-diff'
 import setupClient from './setupClient'
 import {Client} from 'xrpl-local'
 import {ignoreWebSocketDisconnect} from './testUtils'
+import rippled from './fixtures/rippled'
 const utils = Client._PRIVATE.ledgerUtils
 
 const TIMEOUT = 200000 // how long before each test case times out
@@ -158,6 +159,7 @@ describe('Connection', function () {
   })
 
   it('DisconnectedError', async function () {
+    this.mockRippled.suppressOutput = true
     this.mockRippled.on(`request_server_info`, function (request, conn) {
       assert.strictEqual(request.command, 'server_info')
       conn.close()
@@ -505,7 +507,9 @@ describe('Connection', function () {
   })
 
   it('propagates RippledError data', function (done) {
-    this.client.request({command: 'subscribe', streams: 'validations'}).catch((error) => {
+    const request = {command: 'subscribe', streams: 'validations'}
+    this.mockRippled.addResponse(request, rippled.subscribe.error)
+    this.client.request(request).catch((error) => {
       assert.strictEqual(error.name, 'RippledError')
       assert.strictEqual(error.data.error, 'invalidParams')
       assert.strictEqual(error.message, 'Invalid parameters.')