Testing and Debugging

Unit Testing:

Unit testing is a technique for testing individual units of code, typically functions or methods, in isolation. This ensures that each unit of code behaves as expected.

Example:

The following code snippet demonstrates a unit test for the PacmanGame.GetPacmanLocation method:

[Fact]
          public void GetPacmanLocation_ReturnsCorrectLocation()
          {
              // Arrange
              var game = new PacmanGame();
              game.Pacman.Location = new Point(10, 10);
          
              // Act
              var location = game.GetPacmanLocation();
          
              // Assert
              Assert.Equal(new Point(10, 10), location);
          }
          

Integration Testing:

Integration testing involves testing how different units of code interact with each other. This ensures that the different components of the application work together as intended.

Example:

The following code snippet demonstrates an integration test for the PacmanGame.MovePacman method:

[Fact]
          public void MovePacman_MovesPacmanToCorrectLocation()
          {
              // Arrange
              var game = new PacmanGame();
              game.Pacman.Location = new Point(10, 10);
              game.Input.KeyDown(Keys.Up);
          
              // Act
              game.MovePacman();
          
              // Assert
              Assert.Equal(new Point(10, 9), game.Pacman.Location);
          }
          

Debugging Techniques:

Debugging is the process of identifying and resolving errors in code. The following are some debugging techniques that can be used:

• Breakpoints: Breakpoints allow you to pause the execution of your code at a specific point. This allows you to inspect the state of variables and the call stack to understand why your code is behaving unexpectedly.

• Logging: Logging can be used to record the state of your application at various points in time. This can help you identify the source of errors and understand the flow of your code.

• Console Output: The console can be used to display information about your application, such as variable values or error messages. This can be helpful for debugging and troubleshooting issues.

Example:

The following code snippet demonstrates how to use a breakpoint to debug the PacmanGame.MovePacman method:

public void MovePacman()
          {
              // Set a breakpoint here
              if (Input.IsKeyDown(Keys.Up))
              {
                  Pacman.Location = new Point(Pacman.Location.X, Pacman.Location.Y - 1);
              }
              // ...
          }
          

When the breakpoint is hit, you can inspect the values of the Pacman.Location and Input.IsKeyDown(Keys.Up) variables.

Source of Information:

• PacmanBlazor repository on GitHub