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|
package metrics
import (
"reflect"
"testing"
"github.com/hikhvar/mqtt2prometheus/pkg/config"
"github.com/prometheus/client_golang/prometheus"
)
func TestNewJSONObjectExtractor_parseMetric(t *testing.T) {
now = testNow
type fields struct {
metricConfigs map[string][]config.MetricConfig
}
type args struct {
metricPath string
deviceID string
value string
}
tests := []struct {
name string
separator string
fields fields
args args
want Metric
wantErr bool
noValue bool
}{
{
name: "string value",
separator: "->",
fields: fields{
map[string][]config.MetricConfig{
"SDS0X1->PM2->5": []config.MetricConfig{
{
PrometheusName: "temperature",
MQTTName: "SDS0X1.PM2.5",
ValueType: "gauge",
},
},
},
},
args: args{
metricPath: "topic",
deviceID: "dht22",
value: "{\"SDS0X1\":{\"PM2\":{\"5\":4.9}}}",
},
want: Metric{
Description: prometheus.NewDesc("temperature", "", []string{"sensor", "topic"}, nil),
ValueType: prometheus.GaugeValue,
Value: 4.9,
IngestTime: testNow(),
Topic: "topic",
},
}, {
name: "string value with dots in path",
separator: "->",
fields: fields{
map[string][]config.MetricConfig{
"SDS0X1->PM2.5": []config.MetricConfig{
{
PrometheusName: "temperature",
MQTTName: "SDS0X1->PM2.5",
ValueType: "gauge",
},
},
},
},
args: args{
metricPath: "topic",
deviceID: "dht22",
value: "{\"SDS0X1\":{\"PM2.5\":4.9,\"PM10\":8.5}}",
},
want: Metric{
Description: prometheus.NewDesc("temperature", "", []string{"sensor", "topic"}, nil),
ValueType: prometheus.GaugeValue,
Value: 4.9,
IngestTime: testNow(),
Topic: "topic",
},
}, {
name: "metric matching SensorNameFilter",
separator: ".",
fields: fields{
map[string][]config.MetricConfig{
"temperature": []config.MetricConfig{
{
PrometheusName: "temperature",
MQTTName: "temperature",
ValueType: "gauge",
SensorNameFilter: *config.MustNewRegexp(".*22$"),
},
},
},
},
args: args{
metricPath: "topic",
deviceID: "dht22",
value: "{\"temperature\": 8.5}",
},
want: Metric{
Description: prometheus.NewDesc("temperature", "", []string{"sensor", "topic"}, nil),
ValueType: prometheus.GaugeValue,
Value: 8.5,
IngestTime: testNow(),
Topic: "topic",
},
}, {
name: "metric not matching SensorNameFilter",
separator: ".",
fields: fields{
map[string][]config.MetricConfig{
"temperature": []config.MetricConfig{
{
PrometheusName: "temperature",
MQTTName: "temperature",
ValueType: "gauge",
SensorNameFilter: *config.MustNewRegexp(".*fail$"),
},
},
},
},
args: args{
metricPath: "topic",
deviceID: "dht22",
value: "{\"temperature\": 8.5}",
},
want: Metric{},
noValue: true,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
p := Parser{
separator: tt.separator,
metricConfigs: tt.fields.metricConfigs,
}
extractor := NewJSONObjectExtractor(p)
got, err := extractor(tt.args.metricPath, []byte(tt.args.value), tt.args.deviceID)
if (err != nil) != tt.wantErr {
t.Errorf("parseMetric() error = %v, wantErr %v", err, tt.wantErr)
return
}
if len(got) == 0 {
if !tt.noValue {
t.Errorf("parseMetric() got = %v, want %v", nil, tt.want)
}
} else if !reflect.DeepEqual(got[0], tt.want) {
t.Errorf("parseMetric() got = %v, want %v", got[0], tt.want)
} else if len(got) > 1 {
t.Errorf("unexpected result got = %v, want %v", got, tt.want)
}
})
}
}
|
