VictoriaMetrics/app/vmselect/promql/eval_test.go
Roman Khavronenko 4021aa11b5
app/vmselect: export seriesFetched stat for /query responses (#3925)
The change adds a new field `seriesFetched` to EvalConfig object.
Since EvalConfig object can be copied inside `Exec`,
`seriesFetched` is a pointer which can be updated by all copied
objects.

The reason for having stats is that other components, like vmalert,
could benefit from this information.

Signed-off-by: hagen1778 <roman@victoriametrics.com>
Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
2023-03-27 15:18:25 -07:00

94 lines
2.6 KiB
Go

package promql
import (
"testing"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/prometheus"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/storage"
"github.com/VictoriaMetrics/metricsql"
)
func TestGetCommonLabelFilters(t *testing.T) {
f := func(metrics string, lfsExpected string) {
t.Helper()
var tss []*timeseries
var rows prometheus.Rows
rows.UnmarshalWithErrLogger(metrics, func(errStr string) {
t.Fatalf("unexpected error when parsing %s: %s", metrics, errStr)
})
for _, row := range rows.Rows {
var tags []storage.Tag
for _, tag := range row.Tags {
tags = append(tags, storage.Tag{
Key: []byte(tag.Key),
Value: []byte(tag.Value),
})
}
var ts timeseries
ts.MetricName.Tags = tags
tss = append(tss, &ts)
}
lfs := getCommonLabelFilters(tss)
me := &metricsql.MetricExpr{
LabelFilters: lfs,
}
lfsMarshaled := me.AppendString(nil)
if string(lfsMarshaled) != lfsExpected {
t.Fatalf("unexpected common label filters;\ngot\n%s\nwant\n%s", lfsMarshaled, lfsExpected)
}
}
f(``, `{}`)
f(`m 1`, `{}`)
f(`m{a="b"} 1`, `{a="b"}`)
f(`m{c="d",a="b"} 1`, `{a="b", c="d"}`)
f(`m1{a="foo"} 1
m2{a="bar"} 1`, `{a=~"bar|foo"}`)
f(`m1{a="foo"} 1
m2{b="bar"} 1`, `{}`)
f(`m1{a="foo",b="bar"} 1
m2{b="bar",c="x"} 1`, `{b="bar"}`)
}
func TestValidateMaxPointsPerSeriesFailure(t *testing.T) {
f := func(start, end, step int64, maxPoints int) {
t.Helper()
if err := ValidateMaxPointsPerSeries(start, end, step, maxPoints); err == nil {
t.Fatalf("expecint non-nil error for ValidateMaxPointsPerSeries(start=%d, end=%d, step=%d, maxPoints=%d)", start, end, step, maxPoints)
}
}
// zero step
f(0, 0, 0, 0)
f(0, 0, 0, 1)
// the maxPoints is smaller than the generated points
f(0, 1, 1, 0)
f(0, 1, 1, 1)
f(1659962171908, 1659966077742, 5000, 700)
}
func TestValidateMaxPointsPerSeriesSuccess(t *testing.T) {
f := func(start, end, step int64, maxPoints int) {
t.Helper()
if err := ValidateMaxPointsPerSeries(start, end, step, maxPoints); err != nil {
t.Fatalf("unexpected error in ValidateMaxPointsPerSeries(start=%d, end=%d, step=%d, maxPoints=%d): %s", start, end, step, maxPoints, err)
}
}
f(1, 1, 1, 2)
f(1659962171908, 1659966077742, 5000, 800)
f(1659962150000, 1659966070000, 10000, 393)
}
func TestEvalConfig_SeriesFetched(t *testing.T) {
ec := &EvalConfig{}
ec.addStats(1)
if ec.SeriesFetched() != 1 {
t.Fatalf("expected to get 1; got %d instead", ec.SeriesFetched())
}
ecNew := copyEvalConfig(ec)
ecNew.addStats(3)
if ec.SeriesFetched() != 4 {
t.Fatalf("expected to get 4; got %d instead", ec.SeriesFetched())
}
}