Software development has become a routine affair for many. We have IT experts and companies popping up across the globe with the mission of delivering the perfect end-to-end solution. While many promising software developers and testers have joined us, there are still some possible mistakes to anticipate. Even veteran developers may slip up from time to time. With all the cases to test in a software system, some scenarios often need to be addressed or noticed. This article is all about the top 10 missed test cases in software and systems.
Error Handling
When a system asks the user for a prescribed requirement, the system should refuse incorrect inputted information. For instance, when the user enters a letter, it asks for a mobile number. If the error is not in place and a non-digit or an extra digit is accepted, then the database is compromised. Error handling is especially critical to the improvement of user experience.
Documentation Testing
If there is one fundamental thing that is most forgettable in development, it is documentation. Testers need to check if the documentation is complete. After all, if you change developers and proper documentation is not made, it will be difficult to quickly check if all required functions and flow have been finished or worked correctly.
Unit Testing
In unit testing, you closely look at the individual components one by one. In this process, testers validate if each line of code is functioning as intended. But this practice takes more time and costs more which is why some find it counterproductive. For those who encourage this practice, they cite the following advantages of unit testing:
- ensures the safe changing of older source codes;
- catches bugs before an integration test; and
- makes debugging easier.
User Permission and Authorization
Let us move on to user permission and authorization. Often, testers stop when the account they are testing can perform the capabilities expected of them. But for some systems, it can get confusing with the various combinations of capabilities that certain accounts can do. There are incidents wherein basic types of accounts can access premium tools when they should not be able to.
Vulnerability Testing
Vulnerability testing is missed because some clients do not require this. They tend to focus on the functionality they want for their system and miss the importance of security. Even if they ask for security features, there is also a chance that vulnerability testing on a higher level is not expected. So, high-level attacks from hackers leave the system vulnerable. This is something no one should ever skimp on.
Performance Under High Traffic or Concurrent Users
Let’s talk about load and stress on the system. The system may work smoothly with the client’s given number of expected concurrent users. But what if your client all of a sudden accepts more users? Will your system perform just as great? It is better to anticipate highly possible occurrences like this.
Data Migration and Backup / Restoration Scenarios
Testers, have you ever called it a day after creating a backup? Never make that mistake because backups can get corrupted. Some tend to be complacent and confident in their backup. We recommend having 2-3 backups just in case. After all, it is better to be safe than sorry.
Device Testing
Testers need to do more to test their system on different devices. Big mobile brands have various lines with varying designs of units. Size differences are easily forgettable in the mix of development and testing, so the discrepancy and awkward look of the interface may come as a surprise in the end. The mobile test may be responsive, but the look might not cut it.
Browser Testing
Different browsers call for different setups. Sometimes, the number of browsers they try is not enough. The rule of thumb for this is to test all common browsers and to test browsers that the client mostly uses.
Checking Grammar and Spelling
Developers may have copywriters and proofreaders on their team. But some words or sentences may get distorted in the routine copy and paste. So testers should also check for any grammatical or spelling errors.
Why is it essential to do exhaustive testing?
You lose nothing from being certain. It is crucial to ensure that all possible scenarios are tested to ensure the system or software is functioning as intended. Testing all possible inputs and conditions helps identify all bugs and errors that may hinder the system’s functionality. With exhaustive testing, reduce risks that could adversely impact the end users.
