TechBlend-Testing: Black Box and Graph Coverage Testing Techniques

This repository contains code and documentation for performing black box testing and graph coverage analysis on software systems. Black box testing is a technique that tests the functionality of a system without knowing its internal structure or implementation. Graph coverage analysis is a technique that measures how well a set of test cases covers the possible paths or branches in a system’s control flow graph.

Black Box Testing

In this section, we focus on testing the org.jfree.data.time.Quarter class from the JFreeChart framework. The goal is to ensure that all constructors and methods of the Quarter class are thoroughly tested.

The following deliverables are included:

JFreeChart.jar: A modified version of the JFreeChart library specifically for this testing.
Libraries: A set of required libraries for compiling the JFreeChart jar file.
QuarterClassTest.java: A sample test file that provides a passing test case.

Bugs Report provided, documenting the methods to be tested, test cases, their status (Passed or Failed), and additional notes.

Bugs Report Example

Method	Test Cases	Status
constructor(int, int)	new Quarter(2022, 3)	Passed
getYear()	new Quarter(2022, 3).getYear()	Passed
...	...	...

Graph Coverage

In this section, we analyze a specific method using graph coverage techniques. The method code:

public int findTheFirstPrimeNumber(int startNumber, int endNumber)
  {
    if(startNumber > endNumber)
      return -1;

    if(startNumber < 2)
      return -1;

    for(int i = startNumber; i <= endNumber; i++)
    {
      if(i%2 == 0)
        continue;

      boolean isPrime = true;

      for(int j =2; j < i; j++)
      {
        if(i % j ==0)
        {
          isPrime = false;
          break;
        }  
    }
    if(isPrime)
      return i;
    }
    return -1;
  }

The deliverables for this section include:

Text Files: Three separate text files containing the following information:
    Text file contains All nodes (comma separated) mentioning the start and end nodes, Test Paths for nodes coverage with a test case for each path.
    Text file contains All Edges (comma separated), Test Paths for edges coverage with a test case for each path.
    Text file contains Prime path coverage with a test case for each path
Screenshot: A screenshot of the graph under analysis.

Graph Analysis Screenshot

Getting Started

To get started with this project, follow these steps:

1. Clone the repository: git clone https://github.com/KhaledAshrafH/TechBlend-Testing.git
2. Set up the necessary environment and dependencies.
3. Review the provided documentation and code files.
4. Perform black box testing for the Quarter class by creating your test file.
5. Analyze the graph for graph coverage and generate the required text files and screenshots.

Contributing

Contributions to this repository are welcome. If you find any issues or have suggestions for improvement, please open an issue or submit a pull request. Your contributions can help enhance the effectiveness of black box testing and graph coverage techniques.

Team

• Khaled Ashraf Hanafy Mahmoud - 20190186.
• Samah Moustafa Hussien Mahmoud - 20190248.

License

This project is licensed under the MIT License.