energylink/pkg/services/alerting/conditions/evaluator_test.go

package conditions

import (
	"testing"

	"github.com/grafana/grafana/pkg/components/simplejson"
	"github.com/grafana/grafana/pkg/tsdb"
	. "github.com/smartystreets/goconvey/convey"
)

func evalutorScenario(json string, reducedValue float64, datapoints ...float64) bool {
	jsonModel, err := simplejson.NewJson([]byte(json))
	So(err, ShouldBeNil)

	evaluator, err := NewAlertEvaluator(jsonModel)
	So(err, ShouldBeNil)

	var timeserie [][2]float64
	dummieTimestamp := float64(521452145)

	for _, v := range datapoints {
		timeserie = append(timeserie, [2]float64{v, dummieTimestamp})
	}

	tsdb := &tsdb.TimeSeries{
		Name:   "test time serie",
		Points: timeserie,
	}

	return evaluator.Eval(tsdb, reducedValue)
}

func TestEvalutors(t *testing.T) {
	Convey("greater then", t, func() {
		So(evalutorScenario(`{"type": "gt", "params": [1] }`, 3), ShouldBeTrue)
		So(evalutorScenario(`{"type": "gt", "params": [3] }`, 1), ShouldBeFalse)
	})

	Convey("less then", t, func() {
		So(evalutorScenario(`{"type": "lt", "params": [1] }`, 3), ShouldBeFalse)
		So(evalutorScenario(`{"type": "lt", "params": [3] }`, 1), ShouldBeTrue)
	})

	Convey("within_range", t, func() {
		So(evalutorScenario(`{"type": "within_range", "params": [1, 100] }`, 3), ShouldBeTrue)
		So(evalutorScenario(`{"type": "within_range", "params": [1, 100] }`, 300), ShouldBeFalse)
		So(evalutorScenario(`{"type": "within_range", "params": [100, 1] }`, 3), ShouldBeTrue)
		So(evalutorScenario(`{"type": "within_range", "params": [100, 1] }`, 300), ShouldBeFalse)
	})

	Convey("outside_range", t, func() {
		So(evalutorScenario(`{"type": "outside_range", "params": [1, 100] }`, 1000), ShouldBeTrue)
		So(evalutorScenario(`{"type": "outside_range", "params": [1, 100] }`, 50), ShouldBeFalse)
		So(evalutorScenario(`{"type": "outside_range", "params": [100, 1] }`, 1000), ShouldBeTrue)
		So(evalutorScenario(`{"type": "outside_range", "params": [100, 1] }`, 50), ShouldBeFalse)
	})

	Convey("no_value", t, func() {
		So(evalutorScenario(`{"type": "no_value", "params": [] }`, 1000), ShouldBeTrue)
		So(evalutorScenario(`{"type": "no_value", "params": [] }`, 1000, 1, 2), ShouldBeFalse)
	})
}