Unstable functional tests for lisk-forging-plugin

[nazarhussain]

Expected behavior

The functional tests for Lisk Forging Plugin must not fail randomly.

Actual behavior

Sometimes these fail with following error:

@liskhq/lisk-framework-forger-plugin: PASS test/functional/forger_info/event_track.spec.ts (57.001 s)
@liskhq/lisk-framework-forger-plugin:   ● Console
@liskhq/lisk-framework-forger-plugin:     console.error
@liskhq/lisk-framework-forger-plugin:       Unhandled error
@liskhq/lisk-framework-forger-plugin:       at process.uncaught (../../node_modules/jest-jasmine2/build/jasmine/Env.js:248:21)
@liskhq/lisk-framework-forger-plugin:     console.error
@liskhq/lisk-framework-forger-plugin:       Error: listen EADDRINUSE: address already in use 0.0.0.0:5000
@liskhq/lisk-framework-forger-plugin:           at Server.setupListenHandle [as _listen2] (net.js:1316:16)
@liskhq/lisk-framework-forger-plugin:           at listenInCluster (net.js:1364:12)
@liskhq/lisk-framework-forger-plugin:           at doListen (net.js:1501:7)
@liskhq/lisk-framework-forger-plugin:           at processTicksAndRejections (internal/process/task_queues.js:85:21)
@liskhq/lisk-framework-forger-plugin:       at process.uncaught (../../node_modules/jest-jasmine2/build/jasmine/Env.js:249:21)
@liskhq/lisk-framework-forger-plugin: FAIL test/functional/forger_info/forger_info_sync.spec.ts (6.99 s)
@liskhq/lisk-framework-forger-plugin:   ● Console
@liskhq/lisk-framework-forger-plugin:     console.error
@liskhq/lisk-framework-forger-plugin:       Unhandled error
@liskhq/lisk-framework-forger-plugin:       at process.uncaught (../../node_modules/jest-jasmine2/build/jasmine/Env.js:248:21)
@liskhq/lisk-framework-forger-plugin:     console.error
@liskhq/lisk-framework-forger-plugin:       Error: listen EADDRINUSE: address already in use 0.0.0.0:5000
@liskhq/lisk-framework-forger-plugin:           at Server.setupListenHandle [as _listen2] (net.js:1316:16)
@liskhq/lisk-framework-forger-plugin:           at listenInCluster (net.js:1364:12)
@liskhq/lisk-framework-forger-plugin:           at doListen (net.js:1501:7)
@liskhq/lisk-framework-forger-plugin:           at processTicksAndRejections (internal/process/task_queues.js:85:21)
@liskhq/lisk-framework-forger-plugin:       at process.uncaught (../../node_modules/jest-jasmine2/build/jasmine/Env.js:249:21)
@liskhq/lisk-framework-forger-plugin:     console.error
@liskhq/lisk-framework-forger-plugin:       Unhandled error
@liskhq/lisk-framework-forger-plugin:       at process.uncaught (../../node_modules/jest-jasmine2/build/jasmine/Env.js:248:21)
@liskhq/lisk-framework-forger-plugin:     console.error
@liskhq/lisk-framework-forger-plugin:       ReadError: Database is not open
@liskhq/lisk-framework-forger-plugin:           at maybeError (/home/lisk/workspace/lisk-sdk_PR-6294/node_modules/levelup/lib/levelup.js:339:32)
@liskhq/lisk-framework-forger-plugin:           at LevelUP.Object.<anonymous>.LevelUP.put (/home/lisk/workspace/lisk-sdk_PR-6294/node_modules/levelup/lib/levelup.js:211:7)
@liskhq/lisk-framework-forger-plugin:           at KVStore.put (/home/lisk/workspace/lisk-sdk_PR-6294/node_modules/@liskhq/lisk-db/src/kv_store.ts:98:18)
@liskhq/lisk-framework-forger-plugin:           at Object.setForgerSyncInfo (/home/lisk/workspace/lisk-sdk_PR-6294/framework-plugins/lisk-framework-forger-plugin/src/db.ts:51:11)
@liskhq/lisk-framework-forger-plugin:           at ForgerPlugin._syncForgerInfo (/home/lisk/workspace/lisk-sdk_PR-6294/framework-plugins/lisk-framework-forger-plugin/src/forger_plugin.ts:229:9)
@liskhq/lisk-framework-forger-plugin:           at processTicksAndRejections (internal/process/task_queues.js:97:5)
@liskhq/lisk-framework-forger-plugin:           at Immediate.<anonymous> (/home/lisk/workspace/lisk-sdk_PR-6294/framework-plugins/lisk-framework-forger-plugin/src/forger_plugin.ts:140:4)
@liskhq/lisk-framework-forger-plugin:       at process.uncaught (../../node_modules/jest-jasmine2/build/jasmine/Env.js:249:21)
@liskhq/lisk-framework-forger-plugin:   ● Forger Info Sync › should sync information from scratch on startup
@liskhq/lisk-framework-forger-plugin:     listen EADDRINUSE: address already in use 0.0.0.0:5000

Steps to reproduce

Run tests suit on Jenkins

Which version(s) does this affect? (Environment, OS, etc...)

development