Mobile testing automation: trends and best practices

In an increasingly connected world, mobile applications play a central role in connecting businesses with their users. However, ensuring the quality and performance of these applications in such a fragmented ecosystem, with different devices, operating systems, and usage conditions, is an ongoing challenge. 

This is where automated mobile testing becomes indispensable, enabling efficient, scalable, and precise validation, while also accelerating development and delivery cycles.

In this article, we present how to implement and make the most of mobile test automation. Happy reading! 

What are the main mobile test automation tools?

Mobile test automation has become a crucial part of the app development cycle, ensuring quality, performance, and user experience across different devices and operating systems. To achieve these goals, there are tools available in the market that help developers and testers improve and speed up the testing process.

Here are some of the main mobile test automation tools you need to know:

Appium

Appium is one of the most popular tools for mobile test automation. It is an open-source solution that supports the automation of native, hybrid, and web applications on iOS and Android platforms. The main advantage of Appium is its ability to reuse test code across different platforms, significantly increasing maintenance efforts.

• Compatibility: Android, iOS, and Windows.
• Supported languages: Java, Python, JavaScript, Ruby, C#, among others.
• Highlights: Integration with Selenium WebDriver and a large support community.

Espresso

Espresso was developed by Google for automating tests in Android applications and stands out for its seamless integration with Android Studio, providing a smoother and more reliable testing experience for native apps.

• Compatibility: Exclusive to Android.
• Supported languages: Java and Kotlin.
• Highlights: High reliability, fast test execution, and native integration with Android Studio.

XCUITest

Similar to Espresso, XCUITest is a tool developed by Apple for automating tests in iOS applications. It is fully integrated with Xcode and is known for its efficiency and reliability on Apple devices.

• Compatibility: Exclusive to iOS.
• Supported languages: Swift and Objective-C.
• Highlights: Seamless integration with Xcode and fast test execution.

Selenium

Although better known for web testing, Selenium can also be used for mobile test automation, especially for mobile web applications. It works well in combination with tools like Appium to cover different testing scenarios.

• Compatibility: Mobile web on Android and iOS.
• Supported languages: Java, Python, JavaScript, Ruby, C#, among others.
• Highlights: Large support community and flexibility for automation in various environments.

Kobiton

Kobiton is a cloud-based tool that enables both automated and manual testing on real and virtual devices. It is ideal for companies looking to access a wide variety of devices without the need to physically maintain them.

• Compatibility: Android and iOS.
• Highlights: Testing on real devices in the cloud and integration with tools like Appium and Selenium.

What are the benefits of mobile test automation?

Mobile test automation offers advantages that address the complexities of the mobile environment, such as the diversity of devices, operating systems, and hardware variations.

Here are the most specific benefits:

Broad compatibility with devices and operating systems

Failures related to device incompatibilities represent one of the main issues in mobile applications because the mobile ecosystem is notoriously fragmented, with thousands of devices running different versions of Android and iOS. 

Automation allows the same set of tests to be executed on various real devices or emulators, ensuring that an application works on both old and new devices, different screen sizes, and network conditions.

Network testing and real-world conditions

Mobile applications rely on variable networks such as 3G, 4G, Wi-Fi, or offline. Automation tools simulate different connectivity conditions to ensure that the application performs well in real environments, avoiding issues like loading failures or crashes on alternative networks.

Touch, gesture, and sensor testing

Mobile applications rely heavily on gestures (taps, swipes, pinches) and sensors (GPS, camera, gyroscope). Mobile automation supports simulations of these gestures and sensors to test functionalities that don’t exist in desktop applications, ensuring that specific gestures and interactions are executed correctly on all devices.

Reduction of costs with extensive manual testing

Manually testing on collections of mobile devices can be time-consuming and costly, especially for startups or smaller teams. Automation allows these tests to run simultaneously, reducing manual efforts and costs.

Simulation of real-world usage scenarios

Mobile test automation allows simulating scenarios such as push notifications, call interruptions, or app switching in multitasking, which are not easily reproducible in manual testing.

Scalability for global launches

With automation, it is possible to test applications in different languages, time zones, and regional settings without additional manual effort, which is essential for companies launching applications globally.

How to choose the most suitable mobile test automation tool for your project?

Choosing the ideal mobile test automation tool can seem challenging, especially with so many options available in the market. However, the correct selection ensures efficiency, quality, and results aligned with your project’s needs. 

Here are the main factors you should consider when making this choice:

Type of application to be tested

The first step is to identify the type of application that will be tested: native, hybrid, or web. Some tools, like Appium, are more versatile and support all types, while others, like Espresso or XCUITest, are specific to native Android and iOS applications, respectively. If you are developing for multiple platforms, prioritize tools with cross-platform support to reuse scripts.

Compatibility with devices and operating systems

If your application needs to function on older devices or specific operating systems, choose a tool that offers robust support for those configurations. Kobiton is ideal for testing on real devices in the cloud, while tools like BrowserStack help with quick emulations.

Ease of integration with the workflow

The tool should seamlessly integrate into your development environment and CI/CD pipeline (Continuous Integration and Continuous Delivery). This includes compatibility with version control systems, CI platforms like Jenkins, and project management tools.

Supported programming languages

The choice of the tool should consider your team’s experience with programming languages. Some tools, like Appium and Selenium, support a wide variety of languages (Java, Python, JavaScript, etc.), while others are more limited.

Costs and licensing

Analyze the cost-benefit of the tool. Open-source solutions like Appium and Calabash may be ideal for budget-constrained teams, while paid tools like TestComplete offer advanced features and technical support.

Support and community

An active community or reliable technical support is essential for quickly resolving issues. Popular tools like Appium and Espresso have large communities and extensive documentation, making them accessible to both beginners and veterans.

Finally, evaluate each factor carefully and, if possible, experiment with different tools in pilot projects before making a decision. 

What are the best practices for integrating mobile test automation into the agile governance process?

What are the best practices for integrating mobile test automation into the agile governance process?

Integrating mobile test automation with agile governance is a strategy that requires planning, team alignment, and the use of the right tools. When well-implemented, this practice not only improves the efficiency of development but also ensures that the final product meets customer expectations without compromising deadlines.

Below are the best practices that help unify efficiency, collaboration, and alignment with agile principles:

Align automation with product goals

Test automation should be integrated into the agile governance planning, aligning quality objectives with product goals. It is essential for the team to understand which parts of the application are critical and should be prioritized for automated testing.

• Best practice: Identify high-value test cases, such as critical user flows, for initial automation.
• Useful tools: Create clear roadmaps with tools like Jira or Trello.

Incorporate automation into the CI/CD pipeline

In the agile environment, deliveries require automated tests to be part of the Continuous Integration/Continuous Delivery (CI/CD) pipeline. This allows tests to be executed automatically with every code commit.

• Best practice: Set up automated tests to run in CI/CD pipelines using tools like Jenkins, GitLab CI/CD, or CircleCI.
• Benefit: Quickly detects issues, smoothing out rework and speeding up deliveries.

Adopt the shift-left testing philosophy

Agile governance emphasizes collaboration and problem prevention from the early stages of the development cycle. Applying the concept of “shift-left testing” helps detect bugs earlier.

• Best practice: Start creating and executing automated tests from the earliest stages of development, covering basic plans and gradually increasing complexity.
• Benefit: Prevents bottlenecks in the early stages and ensures the product meets requirements from the outset.

Create modular and reusable tests

Maintaining flexibility and scalability is essential for automation in agile projects. Modular and reusable tests save time and facilitate rapid adaptations.

• Best practice: Structure tests into smaller units that can be combined to cover more complex scenarios.
• Practical example: Create parameterized automation scripts with tools like Appium or Espresso.

Monitor and prioritize metrics

For automation to work within agile governance, it is crucial to monitor performance analytics such as test coverage, failure rates, and execution pace.

• Best practice: Use dashboards to visualize testing progress and identify bottlenecks.
• Useful tools: TestRail or Zephyr for metric tracking.

How is mobile test automation related to the DevOps approach?

The DevOps approach aims to integrate development (Dev) and operations (Ops) teams to accelerate the software lifecycle from planning to delivery. The relationship with mobile test automation lies in the need for continuous and efficient testing in an environment characterized by high collaboration, rapid deliveries, and a focus on quality.

Here’s how these two concepts connect:

Integration with CI/CD pipelines

In DevOps, Continuous Integration and Continuous Delivery (CI/CD) pipelines are essential for ensuring that code changes are integrated and delivered quickly and securely. Mobile test automation is a crucial part of these pipelines, allowing automatic validation of code on mobile devices with every commit.

• Example: Tools like Jenkins, GitLab CI/CD, and CircleCI allow for executing automated mobile processes integrated with platforms like Appium or Espresso, ensuring that new features are validated automatically.
• Benefit: Reduces feedback time for developers, speeding up the delivery cycle.

Collaboration between teams

DevOps promotes continuous collaboration between development, operations, and quality teams. Mobile test automation facilitates this interaction by providing centralized reports, shared dashboards, and integrations with project management tools.

• Example: Reports generated by tools like TestRail or Allure can be integrated into collaboration platforms like Jira or Confluence.
• Benefit: Greater visibility of progress and better alignment between teams.

Support for DevSecOps

With the growing adoption of DevSecOps, which incorporates security into the DevOps cycle, mobile test automation also expands to include security testing. Automated tools can check for specific vulnerabilities in mobile applications, such as restrictions or unauthorized access.

• Example: Integrating tools like OWASP ZAP or Mobile Security Framework (MobSF) into the CI/CD pipeline.
• Benefit: Ensures that mobile applications are delivered securely.

How to ensure maintenance and advanced updates of mobile test automation scripts in long-term projects?

Maintaining and updating mobile test automation scripts in long-term projects ensures that tests remain relevant and practical, even with frequent changes in applications, devices, or operating systems. 

Here are the best practices to ensure the longevity and efficiency of the scripts:

Adapt to the evolution of the application

Long-term projects often undergo significant changes in user interface and application functionalities. Instead of reactive adjustments to scripts, adopt a proactive approach by anticipating impacts of changes and adjusting tests based on roadmap predictions.

• Practical example: Whenever new features are planned in the backlog, insert items related to reviewing impacted scripts.

Invest in resilience-focused testing

Fragile scripts are a common problem in mobile projects. To prevent small adjustments in the interface or operating system from invalidating your tests, implement advanced resilience mechanisms, such as:

• Use stable identifiers (unique and persistent attributes in the code).
• Tools that detect UI changes and automatically adjust selectors.

Integrate artificial intelligence into automation

In long-term mobile projects, artificial intelligence can be an ally to monitor and automatically adjust scripts. Learning algorithms can help detect failure patterns in tests and suggest corrections or adaptations.

• Practical example: Tools like Applitools use AI to detect visual changes that may impact user experience without the need for frequent manual adjustments to scripts.

Set up real-time monitoring

In long-term projects, problems are often only perceived when they affect execution. Set up monitoring systems that identify obsolete scripts or invalid selectors as soon as changes are introduced.

• Practical tip: Set up alerts integrated into the pipeline to notify about tests that consistently fail on certain devices or operating system versions.

What are the challenges of implementing mobile test automation and how to overcome them?

There are many challenges in implementing mobile automated testing due to the complexity of the mobile ecosystem and the specific demands of each project. Identifying these challenges and adopting strategies to overcome them is part of the success of automation.

Here are the main challenges and their solutions:

Diversity of devices and operating systems

The fragmentation in the mobile market, with different devices, screen sizes, and operating system versions, is one of the biggest challenges in mobile test automation. Ensuring that the application functions correctly across all combinations is a complex task.

• How to overcome:
  • Utilize cloud testing platforms like BrowserStack or Kobiton, which provide access to a wide variety of real and emulated devices.
  • Prioritize devices and OS versions with larger market shares, based on usage data from your users.

Initial cost and setup time

Mobile test automation requires a significant initial investment, including time to set up the environment, write scripts, and train the team.

• How to overcome:
  • Start by automating high-impact and highly reproducible test cases, such as login tests and critical flows.
  • Plan the implementation in phases, gradually expanding automation.
  • Invest in training so the team is prepared to use the chosen tools.

Complexity in simulating mobile scenarios

Scenarios like network changes, push notifications, and sensor usage (GPS, camera) can be difficult to simulate and test automatically.

• How to overcome:
  • Use tools that support advanced simulations, such as Appium or Perfecto.
  • Set up emulators and simulators to test specific mobile device conditions, such as network switching or call interruptions.
  • Combine testing on real devices for final validation.

Test execution time

Running tests on multiple devices and configurations can increase the total execution time, especially in large test suites.

• How to overcome:
  • Adopt parallel testing on cloud platforms to reduce execution time.
  • Prioritize automated tests for the most critical scenarios and leave rare cases for manual testing.
  • Split a test suite into smaller groups and run only the relevant tests for each code change.

Partnering with a company specialized in mobile automated testing implementation can be a strategic differentiator for companies looking to speed up deliveries, reduce costs, and ensure the quality of their applications. 

In addition to bringing technical expertise, a reliable partner can help in choosing the right tools, creating robust automation strategies, and integrating with advanced practices like DevOps and CI/CD. Objective is a reference in test automation and technological solutions, offering not only technical support but also innovation to transform complex processes into agile and efficient results. 

With a personalized approach, Objective can take your automation strategy to a new level, contact our specialists.