package main

import "testing"

func TestAdd(t *testing.T) {
    tests := []struct {
        a, b, want int
    }{
        {2, 3, 5},
        {0, 0, 0},
        {-1, 1, 0},
        {100, 200, 300},
    }
    for _, tt := range tests {
        got := Add(tt.a, tt.b)
        if got != tt.want {
            t.Errorf("Add(%d, %d) = %d, want %d", tt.a, tt.b, got, tt.want)
        }
    }
}

func TestGreet(t *testing.T) {
    got := Greet("World")
    want := "Hello, World!"
    if got != want {
        t.Errorf("Greet(World) = %q, want %q", got, want)
    }
}