grafana/pkg/tsdb/interval_test.go
Carl Bergquist 5d6ed6c45f
prom: add support for default step param (#9866)
Alerting for prometheus have been depending on the step parameter from each query.
In https://github.com/grafana/grafana/pull/9226 we changed the behavior for step in the
frontend which caused problems for alerting. This commit fixes that by introducing a default
min interval value so alerting always have something to depend on. 

closes #9777
2017-11-15 11:22:00 +01:00

61 lines
1.5 KiB
Go

package tsdb
import (
"testing"
"time"
"github.com/grafana/grafana/pkg/setting"
. "github.com/smartystreets/goconvey/convey"
)
func TestInterval(t *testing.T) {
Convey("Default interval ", t, func() {
setting.NewConfigContext(&setting.CommandLineArgs{
HomePath: "../../",
})
calculator := NewIntervalCalculator(&IntervalOptions{})
Convey("for 5min", func() {
tr := NewTimeRange("5m", "now")
interval := calculator.Calculate(tr, time.Millisecond*1)
So(interval.Text, ShouldEqual, "200ms")
})
Convey("for 15min", func() {
tr := NewTimeRange("15m", "now")
interval := calculator.Calculate(tr, time.Millisecond*1)
So(interval.Text, ShouldEqual, "500ms")
})
Convey("for 30min", func() {
tr := NewTimeRange("30m", "now")
interval := calculator.Calculate(tr, time.Millisecond*1)
So(interval.Text, ShouldEqual, "1s")
})
Convey("for 1h", func() {
tr := NewTimeRange("1h", "now")
interval := calculator.Calculate(tr, time.Millisecond*1)
So(interval.Text, ShouldEqual, "2s")
})
Convey("Round interval", func() {
So(roundInterval(time.Millisecond*30), ShouldEqual, time.Millisecond*20)
So(roundInterval(time.Millisecond*45), ShouldEqual, time.Millisecond*50)
})
Convey("Format value", func() {
So(formatDuration(time.Second*61), ShouldEqual, "1m")
So(formatDuration(time.Millisecond*30), ShouldEqual, "30ms")
So(formatDuration(time.Hour*23), ShouldEqual, "23h")
So(formatDuration(time.Hour*24), ShouldEqual, "1d")
So(formatDuration(time.Hour*24*367), ShouldEqual, "1y")
})
})
}