github.com/galamsiva2020/kubernetes-heapster-monitoring@v0.0.0-20210823134957-3c1baa7c1e70/metrics/sinks/log/log_sink_test.go (about)

     1  // Copyright 2015 Google Inc. All Rights Reserved.
     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  package log
    16  
    17  import (
    18  	"fmt"
    19  	"strings"
    20  	"testing"
    21  	"time"
    22  
    23  	"github.com/stretchr/testify/assert"
    24  
    25  	"k8s.io/heapster/metrics/core"
    26  )
    27  
    28  func TestSimpleWrite(t *testing.T) {
    29  	now := time.Now()
    30  	batch := core.DataBatch{
    31  		Timestamp:  now,
    32  		MetricSets: make(map[string]*core.MetricSet),
    33  	}
    34  	batch.MetricSets["pod1"] = &core.MetricSet{
    35  		Labels: map[string]string{"bzium": "hocuspocus"},
    36  		MetricValues: map[string]core.MetricValue{
    37  			"m1": {
    38  				ValueType:  core.ValueInt64,
    39  				MetricType: core.MetricGauge,
    40  				IntValue:   31415,
    41  			},
    42  		},
    43  		LabeledMetrics: []core.LabeledMetric{
    44  			{
    45  				Name: "lm",
    46  				MetricValue: core.MetricValue{
    47  					MetricType: core.MetricGauge,
    48  					ValueType:  core.ValueInt64,
    49  					IntValue:   279,
    50  				},
    51  				Labels: map[string]string{
    52  					"disk": "hard",
    53  				},
    54  			},
    55  		},
    56  	}
    57  	log := batchToString(&batch)
    58  
    59  	assert.True(t, strings.Contains(log, "31415"))
    60  	assert.True(t, strings.Contains(log, "m1"))
    61  	assert.True(t, strings.Contains(log, "bzium"))
    62  	assert.True(t, strings.Contains(log, "hocuspocus"))
    63  	assert.True(t, strings.Contains(log, "pod1"))
    64  	assert.True(t, strings.Contains(log, "279"))
    65  	assert.True(t, strings.Contains(log, "disk"))
    66  	assert.True(t, strings.Contains(log, "hard"))
    67  	assert.True(t, strings.Contains(log, fmt.Sprintf("%s", now)))
    68  }
    69  
    70  func TestSortedOutput(t *testing.T) {
    71  	const (
    72  		label1  = "abcLabel"
    73  		label2  = "xyzLabel"
    74  		pod1    = "pod1"
    75  		pod2    = "pod2"
    76  		metric1 = "metricA"
    77  		metric2 = "metricB"
    78  	)
    79  	metricVal := core.MetricValue{
    80  		ValueType:  core.ValueInt64,
    81  		MetricType: core.MetricGauge,
    82  		IntValue:   31415,
    83  	}
    84  	metricSet := func(pod string) *core.MetricSet {
    85  		return &core.MetricSet{
    86  			Labels: map[string]string{label2 + pod: pod, label1 + pod: pod},
    87  			MetricValues: map[string]core.MetricValue{
    88  				metric2 + pod: metricVal,
    89  				metric1 + pod: metricVal,
    90  			},
    91  			LabeledMetrics: []core.LabeledMetric{},
    92  		}
    93  	}
    94  	now := time.Now()
    95  	batch := core.DataBatch{
    96  		Timestamp: now,
    97  		MetricSets: map[string]*core.MetricSet{
    98  			pod2: metricSet(pod2),
    99  			pod1: metricSet(pod1),
   100  		},
   101  	}
   102  	log := batchToString(&batch)
   103  	sorted := []string{
   104  		pod1,
   105  		label1 + pod1,
   106  		label2 + pod1,
   107  		metric1 + pod1,
   108  		metric2 + pod1,
   109  		pod2,
   110  		label1 + pod2,
   111  		label2 + pod2,
   112  		metric1 + pod2,
   113  		metric2 + pod2,
   114  	}
   115  	var (
   116  		previous      string
   117  		previousIndex int
   118  	)
   119  	for _, metric := range sorted {
   120  		metricIndex := strings.Index(log, metric)
   121  		assert.NotEqual(t, -1, metricIndex, "%q not found", metric)
   122  		if previous != "" {
   123  			assert.True(t, previousIndex < metricIndex, "%q should be before %q", previous, metric)
   124  		}
   125  		previous = metric
   126  		previousIndex = metricIndex
   127  	}
   128  }