Writing Parallel Table-Driven Tests in Go

package main
 
import "testing"
 
func CalculateDiscount(price int) int {
	if price > 100 {
		return price - 20
	}
	return price
}
 
func TestCalculateDiscount(t *testing.T) {
	tests := []struct {
		name     string
		input    int
		expected int
	}{
		{"No discount for low price", 50, 50},
		{"Apply discount for high price", 150, 130},
	}
 
	for _, tc := range tests {
		t.Run(tc.name, func(t *testing.T) {
			t.Parallel()
			got := CalculateDiscount(tc.input)
			if got != tc.expected {
				t.Errorf("got %d, want %d", got, tc.expected)
			}
		})
	}
}