What is the Go test package and how do I use it?

What is the Go test package and how do I use it?

The Go test package is a built-in library in Go that provides support for automated testing of Go packages. You can use it to write unit tests, benchmarks, and examples.

How do I write a simple test using the Go test package?

To write a simple test, create a file ending in _test.go, define a function starting with Test, and use the testing.T type to report test results.

Can you show me an example of a test function?

Sure! Here's a simple example:

package mypackage

import "testing"

func TestAdd(t *testing.T) {
    result := Add(1, 2)
    if result != 3 {
        t.Errorf("Expected 3, got %d", result)
    }
}

How do I run my tests once I've written them?

You can run your tests by using the command go test in the terminal. This will automatically find and execute all test functions in your package.