github.com/pingcap/tiflow@v0.0.0-20240520035814-5bf52d54e205/pkg/uuid/uuid_test.go (about)

     1  // Copyright 2022 PingCAP, Inc.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //	http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // See the License for the specific language governing permissions and
    12  // limitations under the License.
    13  package uuid
    14  
    15  import (
    16  	"testing"
    17  
    18  	"github.com/stretchr/testify/require"
    19  )
    20  
    21  func TestGenerator(t *testing.T) {
    22  	t.Parallel()
    23  
    24  	gen := NewGenerator()
    25  	uuid1 := gen.NewString()
    26  	uuid2 := gen.NewString()
    27  	require.NotEqual(t, uuid1, uuid2)
    28  }
    29  
    30  func TestMockGenerator(t *testing.T) {
    31  	t.Parallel()
    32  
    33  	gen := NewMock()
    34  	require.Panics(t, func() { gen.NewString() })
    35  
    36  	uuids := []string{"uuid1", "uuid2", "uuid3"}
    37  	for _, uid := range uuids {
    38  		gen.Push(uid)
    39  	}
    40  	for _, uid := range uuids {
    41  		require.Equal(t, uid, gen.NewString())
    42  	}
    43  }
    44  
    45  func TestConstGenerator(t *testing.T) {
    46  	t.Parallel()
    47  
    48  	uid := "const-uuid"
    49  	gen := NewConstGenerator(uid)
    50  	for i := 0; i < 3; i++ {
    51  		require.Equal(t, uid, gen.NewString())
    52  	}
    53  }