github.com/uber/kraken@v0.1.4/lib/hashring/passive_ring_test.go (about)

     1  // Copyright (c) 2016-2019 Uber Technologies, 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  // 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  package hashring
    15  
    16   import (
    17  	"testing"
    18  	"time"
    19  
    20   	"github.com/andres-erbsen/clock"
    21  	"github.com/stretchr/testify/require"
    22  
    23   	"github.com/uber/kraken/core"
    24  	"github.com/uber/kraken/lib/healthcheck"
    25  	"github.com/uber/kraken/lib/hostlist"
    26  )
    27  
    28   func TestPassiveRingFailedAffectsRefreshFilter(t *testing.T) {
    29  	require := require.New(t)
    30  
    31   	r := NewPassive(
    32  		Config{MaxReplica: 3},
    33  		hostlist.Fixture(addrsFixture(10)...),
    34  		healthcheck.NewPassiveFilter(healthcheck.PassiveFilterConfig{
    35  				Fails: 3,
    36  				FailTimeout: 5 * time.Second,
    37  			}, clock.New()))
    38  
    39   	d := core.DigestFixture()
    40  
    41   	replicas := r.Locations(d)
    42  	require.Len(replicas, 3)
    43  
    44   	for i := 0; i < 4; i++ {
    45  		r.Failed(replicas[0])
    46  	}
    47  	r.Refresh()
    48  
    49   	result := r.Locations(d)
    50  	require.Equal(replicas[1:], result)
    51  }