github.com/ydb-platform/ydb-go-sdk/v3@v3.89.2/internal/xslices/sort_copy_test.go (about)

     1  package xslices
     2  
     3  import (
     4  	"testing"
     5  
     6  	"github.com/stretchr/testify/require"
     7  )
     8  
     9  func TestSortCopy(t *testing.T) {
    10  	src := []int{3, 2, 1}
    11  	dst := SortCopy(src, func(lhs, rhs int) int {
    12  		return lhs - rhs
    13  	})
    14  	require.Equal(t, len(src), len(dst))
    15  	require.NotEqual(t, src, dst)
    16  	require.Equal(t, []int{3, 2, 1}, src)
    17  	require.Equal(t, []int{1, 2, 3}, dst)
    18  }