package maps import ( "testing" "github.com/stretchr/testify/assert" ) func TestCountryName(t *testing.T) { t.Run("gb", func(t *testing.T) { result := CountryName("gb") assert.Equal(t, "United Kingdom", result) }) t.Run("us", func(t *testing.T) { result := CountryName("us") assert.Equal(t, "USA", result) }) t.Run("empty", func(t *testing.T) { result := CountryName("") assert.Equal(t, "Unknown", result) }) t.Run("invalid", func(t *testing.T) { result := CountryName("xyz") assert.Equal(t, "Unknown", result) }) }