What is Error Guessing Testing Technique?

• • • Experience of the  tester is utilised to guess the problematic areas of the application. 
    • This technique necessarily requires skilled and experienced testers.
    • It is a type of Black-Box Testing technique and can be viewed as an unstructured approach to Software Testing.
    • This technique can be used at any level of testing.
    •  It  is the process of making an educated guess as to other types of areas to be tested. 
    • main purpose is to concentrate the testing action on regions that have not been taken care of by the other more formal methods.

For example:

Suppose you are testing a login page for a application and you are asked to identify any possible errors that may occur during the login process. By error guessing technique, you might consider the following scenarios:

• • • Entering an invalid username and password combination
    • Entering a valid username but an incorrect password
    • Attempting to login with a username or password that exceeds the maximum character limit
    • Attempting to login with a username or password that does not meet the required complexity criteria
    • Entering a valid username and password but with the caps lock key on
    • Attempting to login without entering any credentials
    • Attempting to login with special characters in the username or password field

By considering these scenarios, you can identify potential errors that might occur during the login process and design test cases to verify that the system behaves correctly under these conditions. The goal is to uncover potential issues that may not have been identified by other testing methods, ultimately improving the quality of the software.

Some common areas of error guessing:

• • • Divide by zero
    • Null pointer exception
    • Entering blank spaces in the text fields
    • Pressing the submit button without entering values.
    • Uploading files exceeding maximum limits.
    • Invalid parameters
    • Refresh buttons

Benefits/Advantages of Error Guessing technique:

• • • Effective when used in combination with other formal testing techniques.
    • Reveals those defects which would otherwise not be possible to find out, through formal testing. 
    • Saves a lot of time and effort.
    • Helps in errorguessing of complex and problematic areas of the application.

Drawbacks of ErrorGuessing technique:

• • • Dependent on testers experience and skills
    • Does not guarantee that the software has reached the expected quality.
    • Does not provide full coverage of the application

In Conclusion , Error guessing can be a useful addition to a comprehensive testing strategy, but it should not be relied upon as the sole method of testing a system. By combining error guessing with other testing techniques, such as functional testing and regression testing, testers can more effectively identify and address errors or defects in a software system.

Recommended Articles:

• • Exploratory Testing
  • Functional Testing
  • Integration Testing
  • Unit Testing