What types of tests have you had to write?

I had to write several types of tests in Go:

• Unit tests — for checking individual functions and methods. Used the standard testing package, wrote tests with different input data, and checked the expected results.
• Integration tests — for verifying interaction between components, such as with databases or external services. Often used mock objects or test databases.
• Performance tests — using benchmarks to evaluate the speed of critical functions.

Example of a simple unit test in Go:

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