API Testing for Mobile Apps: The Best Processes & Solutions


If you're familiar with mobile app development, you would know how integral APIs have become for businesses, making sharing services easy and accessible on all devices and platforms. As much as API is fundamental to mobile applications, it is essential to ensure API quality and smooth functioning through effective testing throughout the evolutionary phase.

While checking on the API functionalities, API testing also validates secure and highly reliable performance, letting developers keep an eye on potential vulnerabilities and performance issues in the initial stages of testing and deployment.

In this blog post, we'll discuss the most effective ways to test mobile app APIs, the challenges involved, and the best API integration testing tool for your business.


Mobile API Testing

Implementing API testing automation for mobile apps is carried out by DevOps, and quality assurance (QA) teams as part of regular testing routines. The test is done by initiating requests to single or multiple API endpoints and comparing the response with the expected results.

API testing generally follows the below steps:

  1. Set up the Testing Environment

  2. Write Test Cases

  3. Run the Tests

  4. Analyze the Results

  5. Repeat as Necessary

Mobile app API testing is typically performed in a separate testing environment that simulates the production environment. This allows developers to focus on testing the API without having to worry about the application's other dependencies.

Once the testing environment is set up, developers will write test cases that exercise the API and assess its functionality. These test cases can be run manually or automatically.

After the tests are run, the results are analyzed to identify any issues. If necessary, the process is repeated until all issues have been resolved.


Types of Mobile App API Testing

Mobile App API testing can be performed manually or automated. Manual testing can be useful for exploratory testing or when you're first getting started with a new API. But automated tests are faster and more reliable, and help to identify issues more quickly. Automated tests are conducted by special testing tools.

There are various types of Mobile App API testing, each with its own purpose, the most common categories being functional, load, security, and compliance tests.

  • Mobile App API Functional Testing

Mobile API Functional tests focus on the API's functionality and ensure that it responds as per the expectations and within the set protocols. One can use data-driven testing for vast amounts of input data and respective output, or leverage keywords for test harnesses at a higher level. This test examines specific methods inside the codebase.

  • Mobile App API Load Testing (or performance testing)

Mobile app API Load testing ensures that an API can handle a high number of requests without experiencing any degradation in performance. This type of test is important for ensuring that the Mobile API will be able to handle peak traffic periods without any issues. It is conducted using Mobile API Load Testing tools.

  • Mobile App API Security Testing

Mobile App Security testing focuses on assessing the security of an API and its data. This includes tests for vulnerabilities such as SQL injection and cross-site scripting (XSS). These tests can be used to ensure that the Mobile App API is properly configured and that sensitive data is protected.

  • Mobile App API Compliance Testing

Mobile App Compliance testing assesses whether an API adheres to certain standards or regulations. This type of test is important for ensuring that the Mobile App API meets industry-specific requirements.

  • Mobile App API Fuzz Testing

Mobile App Fuzz testing is a type of security test that involves providing invalid or unexpected input to an API in order to assess its resilience. This type of test is important for identifying potential security vulnerabilities in Mobile App APIs.


Challenges in Mobile App API Testing

When an API fails in a mobile application, it can cause the application to crash or freeze. An API failure can be particularly problematic in mobile applications, where a frozen app can quickly drain the battery.

Further, API failures can also lead to data corruption. This can happen when the API returns incorrect data or when the application fails to properly save data. This can cause serious problems for users and can even result in the loss of data. The best way to avoid these problems is to test your APIs thoroughly before releasing them into production.

However, API software testing automation tools for mobile apps can be pretty challenging due to following reasons:

  • Complexity: Mobile APIs can be complex, making it difficult to write effective test cases.

  • Lack of Documentation: In many cases, APIs do not have adequate documentation, making it difficult to understand how they work.

  • Fragmentation: With the proliferation of devices and platforms, it can be a tough task to ensure that an API is compatible with every one of them.

  • Lack of Standards: There are no industry-wide standards for APIs, making it difficult to assess their quality.


HyperTest: A Sure-Fire Way to Effective Mobile App API Testing

Testing with automated tools is the most common way for Mobile APP API testing today. Among the automated tools, a name you can rely on for impeccable results is HyperTest.

HyperTest Is A No-code API Testing Tool that makes automated API software testing automation tools extremely convenient, hassle-free and efficient.

With HyperTest, you can:

  • Create test cases without having to write any code.

  • Cut down on time

  • Access an extensive range of tests, with a complete suite

  • Timely de-bugging that ensures unhindered workflow

  • Facilitate automatic generation and maintenance as well as regular updates of end-to-end Mobile App API tests using real network traffic.

  • Find every API error for developers prior to release thanks to its distinct approach to API Regression.


HyperTest leverages your Mobile App API traffic for auto-generating integration tests, making testing processes at every new commit more feasible. HyperTest also sources out every API artifact, discovering the details and doing the documentation for you. It also creates an API inventory that’s update-to-date and smooth-running.


Key features of HyperTest:

HyperTest tool comes with a host of features that makes it the most sought-after API software testing automation tools in the market. Here are some key features of HyperTest:

  • Complete API Management: Automate the entire testing lifecycle of your APIs- from design to deployment.

  • End-to-End Tests: HyperTest automatically generates end-to-end tests for your APIs using real network traffic.

  • No Code Required: With HyperTest, you can create test cases without having to write any code.

  • Comprehensive Testing: HyperTest can find every API error for developers prior to release.

  • Easy to Use: HyperTest is easy to use, even for those with no prior coding experience.

A significant advantage of Mobile App API testing is that it allows various teams like developers, quality assurance etc, to launch the test on core functionality of an app even before the user interface is available. This helps in identifying the flaws early on in the development process and rectifying them.

Such flaws when unidentified can cost one’s time, money and efforts, resulting in rewriting a huge chunk of code and affecting timely release of the product.


Summing it Up

With the HyperTest tool, you ward off any risks or anxieties concerning security failing while developing mobile applications. To access all the benefits of automated API testing, utilize HyperTest - the first ever platform design of its kind - to test your mobile app APIs and Microservices. Get a close grip on your entire application traffic, and stop worrying over API failures and incidents. To know more or avail of a demo please visit us at https://hypertest.co/.

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