test: fix scan iterator

Author: aryamohanan

docker-compose-base.yaml

@@ -1,7 +1,7 @@
 version: '2'
 services:
   redis:
-    image: redis:7.4
+    image: redis:7.4.3
     ports:
       - 6379:6379
 

packages/collector/test/tracing/database/redis/app.js

@@ -25,16 +25,16 @@ const port = require('../../../test_util/app-port')();
 
 const cls = require('../../../../../core/src/tracing/cls');
 const app = express();
+const REDIS_VERSION = process.env.REDIS_VERSION;
 const logPrefix =
-  `Redis App (version: ${process.env.REDIS_VERSION}, require: ${process.env.REDIS_PKG}, ` +
+  `Redis App (version: ${REDIS_VERSION}, require: ${process.env.REDIS_PKG}, ` +
   `cluster: ${process.env.REDIS_CLUSTER}, pid: ${process.pid}):\t`;
 const agentPort = process.env.INSTANA_AGENT_PORT;
 
 let connectedToRedis = false;
 let connection;
 let connection2;
 const connect = require('./connect-via');
-const REDIS_VERSION = process.env.REDIS_VERSION || 'latest';
 
 function log() {
   const args = Array.prototype.slice.call(arguments);

packages/collector/test/tracing/database/redis/test.js

@@ -712,7 +712,7 @@ const legacyVersion = 'v3';
 
               // scanIterator not available on cluster.
               if (setupType !== 'cluster') {
-                it.skip('must trace scan iterator usage', () =>
+                it('must trace scan iterator usage', () =>
                   controls
                     .sendRequest({
                       method: 'GET',