Tests — did the developers write some?

When it comes to tests in Go, developers usually write unit tests using the standard testing package. A good practice is to cover critical and complex parts of the code with tests to ensure correctness and facilitate refactoring.

Tests can be:

• Unit tests — check individual functions or methods.
• Integration tests — verify the interaction between components.

An example of a simple test:

func Add(a, b int) int {
    return a + b
}

func TestAdd(t *testing.T) {
    result := Add(2, 3)
    if result != 5 {
        t.Errorf("Expected 5, got %d", result)
    }
}

If developers do not write tests, it can complicate maintenance and error detection. Ideally, tests should be part of the development process.