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ChatGPT & Java Research Driven Development of a Personal Budget App, Part 8
Welcome to the eighth episode of our series, where we continue to enhance our user-friendly personal budget application using ChatGPT and Java. In this chapter, we focus more on the creation of the UserDto through Unit Tests.
We created test cases for the following functionalities:
1.) Equals: We tested the equality of the UserDto objects using the equals method to ensure that they were equal.
2.) Hashcode: We tested the hashcode of the UserDto objects to ensure that they had the same hashcode if they were equal.
3.) toString: We tested the toString method to ensure that it returned the expected string representation of the UserDto object.
4.) toString Null Values (which later became obsolete): We also tested the toString method for null values, but later realized that it was unnecessary as the UserDto constructor did not allow null values.
5.) Immutability: We tested the immutability of the UserDto objects to ensure that they could not be modified after creation.
6.) Immutability Null Values with the warning "Variable 'other' can be replaced with pattern variable": We also tested immutability for null values, and addressed a warning generated during testing by replacing the @Override with more concise code.
7.) Copy Constructor: We created a test for the copy constructor that created an original DTO object and then created a new object using the copy constructor to compare the original to the copied DTO object to ensure that they were equal but not the same object in memory. If this test passes then the copy constructor test is working properly.
By the end of this video, you will have a comprehensive understanding of how to create and test UserDto using unit testing. Stay tuned for the next episode, where we will continue to improve and add new features to our application using the power of ChatGPT and Java.
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