github.com/yacovm/fabric@v2.0.0-alpha.0.20191128145320-c5d4087dc723+incompatible/common/flogging/metrics/observer_test.go (about)

     1  /*
     2  Copyright IBM Corp. All Rights Reserved.
     3  
     4  SPDX-License-Identifier: Apache-2.0
     5  */
     6  
     7  package metrics_test
     8  
     9  import (
    10  	"testing"
    11  
    12  	"github.com/hyperledger/fabric/common/flogging/metrics"
    13  	commonmetrics "github.com/hyperledger/fabric/common/metrics"
    14  	"github.com/hyperledger/fabric/common/metrics/metricsfakes"
    15  	"github.com/stretchr/testify/assert"
    16  	"go.uber.org/zap/zapcore"
    17  )
    18  
    19  func TestNewObserver(t *testing.T) {
    20  	provider := &metricsfakes.Provider{}
    21  	checkedCounter := &metricsfakes.Counter{}
    22  	writtenCounter := &metricsfakes.Counter{}
    23  	provider.NewCounterStub = func(c commonmetrics.CounterOpts) commonmetrics.Counter {
    24  		switch c.Name {
    25  		case "entries_checked":
    26  			assert.Equal(t, metrics.CheckedCountOpts, c)
    27  			return checkedCounter
    28  		case "entries_written":
    29  			assert.Equal(t, metrics.WriteCountOpts, c)
    30  			return writtenCounter
    31  		default:
    32  			return nil
    33  		}
    34  	}
    35  
    36  	expectedObserver := &metrics.Observer{
    37  		CheckedCounter: checkedCounter,
    38  		WrittenCounter: writtenCounter,
    39  	}
    40  	m := metrics.NewObserver(provider)
    41  	assert.Equal(t, expectedObserver, m)
    42  	assert.Equal(t, 2, provider.NewCounterCallCount())
    43  }
    44  
    45  func TestCheck(t *testing.T) {
    46  	counter := &metricsfakes.Counter{}
    47  	counter.WithReturns(counter)
    48  
    49  	m := metrics.Observer{CheckedCounter: counter}
    50  	entry := zapcore.Entry{Level: zapcore.DebugLevel}
    51  	checkedEntry := &zapcore.CheckedEntry{}
    52  	m.Check(entry, checkedEntry)
    53  
    54  	assert.Equal(t, 1, counter.WithCallCount())
    55  	assert.Equal(t, []string{"level", "debug"}, counter.WithArgsForCall(0))
    56  
    57  	assert.Equal(t, 1, counter.AddCallCount())
    58  	assert.Equal(t, float64(1), counter.AddArgsForCall(0))
    59  }
    60  
    61  func TestWrite(t *testing.T) {
    62  	counter := &metricsfakes.Counter{}
    63  	counter.WithReturns(counter)
    64  
    65  	m := metrics.Observer{WrittenCounter: counter}
    66  	entry := zapcore.Entry{Level: zapcore.DebugLevel}
    67  	m.WriteEntry(entry, nil)
    68  
    69  	assert.Equal(t, 1, counter.WithCallCount())
    70  	assert.Equal(t, []string{"level", "debug"}, counter.WithArgsForCall(0))
    71  
    72  	assert.Equal(t, 1, counter.AddCallCount())
    73  	assert.Equal(t, float64(1), counter.AddArgsForCall(0))
    74  }