github.com/benz9527/xboot@v0.0.0-20240504061247-c23f15593274/lib/id/monotonic_id_test.go (about)

     1  package id
     2  
     3  import (
     4  	"math"
     5  	"testing"
     6  
     7  	"github.com/stretchr/testify/require"
     8  )
     9  
    10  func TestMonotonicNonZeroID(t *testing.T) {
    11  	id := new(monotonicNonZeroID)
    12  	id.val = math.MaxUint64
    13  	require.Equal(t, uint64(1), id.next())
    14  
    15  	gen, err := MonotonicNonZeroID()
    16  	require.Nil(t, err)
    17  	require.Equal(t, uint64(1), gen.Number())
    18  	for i := 0; i < 1000; i++ {
    19  		require.Less(t, gen.Number(), gen.Number())
    20  	}
    21  	require.NotEqual(t, gen.Str(), gen.Str())
    22  }
    23  
    24  func BenchmarkMonotonicNonZeroID(b *testing.B) {
    25  	gen, err := MonotonicNonZeroID()
    26  	require.Nil(b, err)
    27  	b.ResetTimer()
    28  	for i := 0; i < b.N; i++ {
    29  		_ = gen.Number()
    30  	}
    31  	b.ReportAllocs()
    32  }