End-to-End Testing Services
During development, every software product is tested multiple times: to verify that all the functions work correctly, that the solution complies with performance requirements, that the GUI ensures superior quality of experience on all devices, etc.
However, in some cases successful completion of these tests is not enough to make a user’s entire journey through the application trouble-free. This is where end-to-end testing, or E2E testing, comes into play.
Within the E2E approach, our QA and testing teams use test scenarios that simulate real user behavior and involve all integrated components such as interfaces, databases, network, external systems, and other applications.
Benefits You Get
End-to-end testing is essential for modern software that commonly incorporates multiple subsystems and enables complex user scenarios. Using the E2E approach lets you:
- Detect problems in communication with third-party systems;
- Increase test coverage to rule out any bugs that slipped under the radar in earlier testing;
- Verify and inspect real-world behavior of your application;
- Easily determine how a failed test would impact the user.
We use a range of tried-and-true techniques in end-to-end test design and execution, including the following:
Equivalence partitioningThe technique involves dividing test conditions into partitions with an assumption that the system will treat all conditions in one partition equally. This enables us to use just one condition to represent each class and save testing time.
Boundary value analysisUsed in tandem with equivalence partitioning, this approach checks the system’s reaction to typical values, maximum and minimum valid values, above/below boundary values, and invalid values. As a result, the number of test cases can be reduced without compromising quality.
Pairwise testingIn Pairwise Independent Combinatorial Testing (PICT), test cases are designed to execute all possible discrete combinations of each pair of input parameters. We use it to optimize test coverage and effectiveness in applications with multiple parameters.
Exploratory testing and error guessingThe exploratory approach requires critical thinking and domain knowledge for testing that doesn’t follow strict procedures. Our most experienced testers use error guessing to estimate potential weak links and write test cases focused on vulnerabilities that go undetected in formal testing.
Cause and effect graphsA cause and effect graph is used to visualize the relationship between an existing problem and the factors that contribute to it. Our team employs such graphs to determine the root cause and brainstorm solutions to a particular software defect.
Decision table testingThe number of input combinations for complex business rules can be too high to reasonably cover with tests. To save time and effort, we fill out a decision table and use a small subset of combinations crucial for passing the test.
State-transition testingWe examine the system’s reaction to sequences of input conditions where the same input can cause a different output depending on previous actions. The technique allows testers to write effective test cases and cover a greater range of system states.
Why Do End-to-End Testing With Us
Featured Case Studies
End-to-end testing was conducted for all major features of a powerful media asset management system, including advanced user management, single- and multi-tier content creation, playback scheduling, data export, and a business-critical integration with an external video streaming system.View Project
The team leveraged 3,500+ test cases to ensure superior product quality. Special attention was paid to business-critical notification module that generates emails and content for a variety of users and events.View Project
Our choice of techs for end-to-end testing will depend heavily on the nature of your project. Here are some of the tools we generally use:
- Browser DevTools
- JSON Viewer
- SQL Server Management Studio
- Selenium IDE
- Robo 3T
Want to make sure every component of your solution delivers in real-life conditions? Reach out to our end-to-end testing professionals to discuss the best ways of ensuring faultless data flow across your entire system.