update test

Author: mmcallister-cll

packages/sources/tiingo/test/integration/__snapshots__/adapter-ws.test.ts.snap

@@ -15,6 +15,40 @@ exports[`websocket crypto endpoint should return success 1`] = `
 }
 `;
 
+exports[`websocket crypto_lwba endpoint should only subscribe once 1`] = `
+{
+  "data": {
+    "ask": 1794.2063137650225,
+    "bid": 1793.6242715443277,
+    "mid": 1793.915292654675,
+  },
+  "result": null,
+  "statusCode": 200,
+  "timestamps": {
+    "providerDataReceivedUnixMs": 2028,
+    "providerDataStreamEstablishedUnixMs": 2020,
+    "providerIndicatedTimeUnixMs": 1680187094577,
+  },
+}
+`;
+
+exports[`websocket crypto_lwba endpoint should only subscribe once 2`] = `
+{
+  "data": {
+    "ask": 1794.2063137650225,
+    "bid": 1793.6242715443277,
+    "mid": 1793.915292654675,
+  },
+  "result": null,
+  "statusCode": 200,
+  "timestamps": {
+    "providerDataReceivedUnixMs": 2028,
+    "providerDataStreamEstablishedUnixMs": 2020,
+    "providerIndicatedTimeUnixMs": 1680187094577,
+  },
+}
+`;
+
 exports[`websocket crypto_lwba endpoint should return error (invariant violation) 1`] = `
 {
   "error": {

packages/sources/tiingo/test/integration/adapter-ws.test.ts

@@ -13,6 +13,8 @@ import {
 } from './fixtures'
 import { WebSocketClassProvider } from '@chainlink/external-adapter-framework/transports'
 import FakeTimers from '@sinonjs/fake-timers'
+import * as lwbaTransport from '../../src/transport/crypto-lwba'
+import * as lwbaEndpoint from '../../src/endpoint/crypto-lwba'
 
 describe('websocket', () => {
   let mockWsServerCrypto: MockWebsocketServer | undefined
@@ -100,6 +102,25 @@ describe('websocket', () => {
       const response = await testAdapter.request(spreadData)
       expect(response.json()).toMatchSnapshot()
     })
+    it('should only subscribe once', async () => {
+      const lwbaDataLowercase = {
+        endpoint: 'crypto_lwba',
+        base: 'eth',
+        quote: 'usd',
+      }
+      const lwbaDataUppercase = {
+        endpoint: 'crypto_lwba',
+        base: 'ETH',
+        quote: 'USD',
+      }
+      const response1 = await testAdapter.request(lwbaDataLowercase)
+      expect(response1.json()).toMatchSnapshot()
+
+      const response2 = await testAdapter.request(lwbaDataUppercase)
+      expect(response2.json()).toMatchSnapshot()
+
+      expect(lwbaTransport.transport.subscriptionSet.getAll()).toHaveLength(1)
+    })
     it('should return error (invariant violation)', async () => {
       // fast forward to next message (which contains an invariant violation)
       testAdapter.clock.tick(5000)