github.com/KinWaiYuen/client-go/v2@v2.5.4/oracle/oracles/local_test.go (about)

     1  // Copyright 2021 TiKV Authors
     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  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  // NOTE: The code in this file is based on code from the
    16  // TiDB project, licensed under the Apache License v 2.0
    17  //
    18  // https://github.com/pingcap/tidb/tree/cc5e161ac06827589c4966674597c137cc9e809c/store/tikv/oracle/oracles/local_test.go
    19  //
    20  
    21  // Copyright 2016 PingCAP, Inc.
    22  //
    23  // Licensed under the Apache License, Version 2.0 (the "License");
    24  // you may not use this file except in compliance with the License.
    25  // You may obtain a copy of the License at
    26  //
    27  //     http://www.apache.org/licenses/LICENSE-2.0
    28  //
    29  // Unless required by applicable law or agreed to in writing, software
    30  // distributed under the License is distributed on an "AS IS" BASIS,
    31  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    32  // See the License for the specific language governing permissions and
    33  // limitations under the License.
    34  
    35  package oracles_test
    36  
    37  import (
    38  	"context"
    39  	"testing"
    40  	"time"
    41  
    42  	"github.com/KinWaiYuen/client-go/v2/oracle"
    43  	"github.com/KinWaiYuen/client-go/v2/oracle/oracles"
    44  	"github.com/stretchr/testify/assert"
    45  	"github.com/stretchr/testify/require"
    46  )
    47  
    48  func TestLocalOracle(t *testing.T) {
    49  	l := oracles.NewLocalOracle()
    50  	defer l.Close()
    51  	m := map[uint64]struct{}{}
    52  	for i := 0; i < 100000; i++ {
    53  		ts, err := l.GetTimestamp(context.Background(), &oracle.Option{})
    54  		require.Nil(t, err)
    55  		m[ts] = struct{}{}
    56  	}
    57  
    58  	assert.Len(t, m, 100000, "should generate same ts")
    59  }
    60  
    61  func TestIsExpired(t *testing.T) {
    62  	o := oracles.NewLocalOracle()
    63  	defer o.Close()
    64  
    65  	start := time.Now()
    66  	oracles.SetOracleHookCurrentTime(o, start)
    67  	ts, _ := o.GetTimestamp(context.Background(), &oracle.Option{})
    68  	oracles.SetOracleHookCurrentTime(o, start.Add(10*time.Millisecond))
    69  
    70  	expire := o.IsExpired(ts, 5, &oracle.Option{})
    71  	assert.True(t, expire)
    72  
    73  	expire = o.IsExpired(ts, 200, &oracle.Option{})
    74  	assert.False(t, expire)
    75  }
    76  
    77  func TestLocalOracle_UntilExpired(t *testing.T) {
    78  	o := oracles.NewLocalOracle()
    79  	defer o.Close()
    80  	start := time.Now()
    81  	oracles.SetOracleHookCurrentTime(o, start)
    82  	ts, _ := o.GetTimestamp(context.Background(), &oracle.Option{})
    83  
    84  	oracles.SetOracleHookCurrentTime(o, start.Add(10*time.Millisecond))
    85  	assert.Equal(t, int64(-4), o.UntilExpired(ts, 6, &oracle.Option{}))
    86  	assert.Equal(t, int64(4), o.UntilExpired(ts, 14, &oracle.Option{}))
    87  }