fix: Updated redis instrumentation to parse host/port when a url is not provided (#2463)

Author: bizob2828

lib/instrumentation/@node-redis/client.js

@@ -104,8 +104,9 @@ function getRedisParams(clientOpts) {
   }
 
   return new DatastoreParameters({
-    host: clientOpts?.socket?.host || 'localhost',
-    port_path_or_id: clientOpts?.socket?.path || clientOpts?.socket?.port || '6379',
+    host: clientOpts?.host || clientOpts?.socket?.host || 'localhost',
+    port_path_or_id:
+      clientOpts?.port || clientOpts?.socket?.path || clientOpts?.socket?.port || '6379',
     database_name: clientOpts?.database || 0
   })
 }

test/unit/instrumentation/redis.test.js

@@ -26,8 +26,8 @@ tap.test('getRedisParams should behave as expected', function (t) {
   t.test('if host/port are defined incorrectly, should return expected defaults', function (t) {
     const params = getRedisParams({ host: 'myLocalHost', port: '1234' })
     const expected = {
-      host: 'localhost',
-      port_path_or_id: '6379',
+      host: 'myLocalHost',
+      port_path_or_id: '1234',
       database_name: 0
     }
     t.match(params, expected, 'should return sensible defaults if defined without socket')

test/versioned/redis/redis-v4-legacy-mode.tap.js

@@ -30,7 +30,8 @@ test('Redis instrumentation', function (t) {
     const redis = require('redis')
     client = redis.createClient({
       legacyMode: true,
-      socket: { port: params.redis_port, host: params.redis_host }
+      port: params.redis_port,
+      host: params.redis_host
     })
 
     await client.connect()