Testing IoT Applications

IOT icon

This article provides insights into the concept of IoT and how we at Q-Pros verify and validate implementations of such a trending technology through applying specific types of functional and non-functional testing.

The term “Internet of Things” was first used in the early 21st century when a team of engineers discovered how to link objects to the internet through an RFID tag. The term IoT has stuck around ever since.

Today, we’re living in a world where there are more IoT connected devices than humans. These IoT connected devices and machines range from wearables like smartwatches to RFID inventory tracking chips. IoT connected devices communicate via networks or cloud-based platforms connected to the Internet of Things. The real-time insights gleaned from this IoT collected data to fuel digital transformation. The Internet of Things promises many positive changes for health and safety, business operations, industrial performance, and global environmental and humanitarian issues.

We have seen recently IoT applications growing tremendously across many critical business cases which as a result has made IoT testing more essential to ensure quality is maintained to increase end-users’ adoption and satisfaction.

IoT Test Strategy

With IoT around, there will be challenges and changes that the QA industry will have to adjust to it accordingly; they will have to focus more on user-centric testing and prevent bugs at the design stage. Software testing engineers will need to develop some new skills and knowledge in embedded systems testing, as well as building an effective strategy for IoT software testing.

Effective testing strategy will include:

  • Measure quality of testing.
  • Review testing toolset considering user feedback.
  • Remote testing and debugging.
  • Analyze test results and effectiveness.
  • Automation testing through codes to ensure quality standards at each stage, as well as guarantee its reliability and accuracy.
  • Test analytics.
  • Data generator tool and effective test data management tool.

Types of Testing

To verify and validate IoT testing applications, the test engineers need to ensure the following types of testing is planned, designed and executed to ensure full quality coverage:


  • Access control
  • Identity roles management
  • Mobile and web applications
  • Functional business requirements


  • Verify the device behavior in unstable networks
  • Data restore when there is no connectivity or power loss


  • Ease of use
  • UI Testing
  • UX Testing


  • Validating all possible working combinations of devices, operating systems and protocols.
  • Verifying the behavior of the developed hardware/software with the older versions of the hardware/software.
  • Verifying the behavior of the developed hardware/software with the newer versions of the hardware/software
  • Verifying the developed hardware/software performance after adding new update/feature or after a rollback in case of a failure.


  • User authentication
  • Device authentication
  • Data protection
  • Data encryption


  • Device-to-device communication
  • Server-to-server communication
  • Device to- server communication
  • Network performance

Automated Testing

The Internet of Things Solutions World Congress (IoTSWC) 2018 predicts slow simplification of communication protocol standards in IoT development. That means automated testing has a good chance to fully enter the industry. For now, testing applications connected to the network often results in sleepless nights, since not all IoT devices can be approached by automation. However, the use of automated tests for IoT is always a matter of a specific device.

The simulators might help to render the network of IoT nodes and deliver a range of benefits for IoT product release:

  • Accelerated testing is one of the top features Automation can bring to IoT Quality Assurance. It removes resource limits and provides cross-device/browser testing possibilities.
  • Test Coverage. Since automated tests are cost-effective, QA would be able to cover a broader range of app versions, desktop & mobile devices detecting defects even in the early stages. Automated Test Cases can offer a higher code coverage with the possibility of covering complex scenarios on a basis.
  • Automated testing might ensure the IoT testing app is multi-user and can be deployed in a dispersed environment. As IoT is an emerging technology in 2019, the role of automated Quality Assurance (QA) is one of the ways to accelerate product delivery and raise the competitive edge of the industry.