VictoriaMetrics/apptest/tests/multilevel_test.go
hagen1778 790eab3026
tests: integration tests for vmsingle (#7434)
### Describe Your Changes

This PR continues the implementation of integration tests (#7199). It
adds the support for vm-single:

-    A vmsingle app wrapper has been added
- Sample vmsingle tests that test the VM documentation related to
querying data (#7435)
- The tests use the go-cmp/{cmp,/cmpopts} packages, therefore they have
been added to ./vendor
-    Minor refactoring: data objects have been moved to model.go

Advice on porting things to cluster branch:

- The build rule must include tests that start with TestVmsingle
(similarly to how TestCluster tests are skipped in master branch)
- The build rule must depend on `vmstorage vminsert vmselect` instead of
`victoria-metrics`
- The query_test.go can actually be implemented for cluster as well. To
do this the tests need to be renamed to start with TestCluster and the
tests must instantiace vm{storage,insert,select} instead of vmsingle.

### Checklist

The following checks are **mandatory**:

- [x] My change adheres [VictoriaMetrics contributing
guidelines](https://docs.victoriametrics.com/contributing/).

---------

Signed-off-by: Artem Fetishev <rtm@victoriametrics.com>
Signed-off-by: hagen1778 <roman@victoriametrics.com>
Co-authored-by: hagen1778 <roman@victoriametrics.com>
Signed-off-by: hagen1778 <roman@victoriametrics.com>
2024-11-07 13:25:01 +01:00

68 lines
2.1 KiB
Go

package tests
import (
"fmt"
"math/rand/v2"
"testing"
"time"
"github.com/VictoriaMetrics/VictoriaMetrics/apptest"
)
func TestClusterMultilevelSelect(t *testing.T) {
tc := apptest.NewTestCase(t)
defer tc.Close()
// Set up the following multi-level cluster configuration:
//
// vmselect (L2) -> vmselect (L1) -> vmstorage <- vminsert
//
// vmisert writes data into vmstorage.
// vmselect (L2) reads that data via vmselect (L1).
cli := tc.Client()
vmstorage := apptest.MustStartVmstorage(t, "vmstorage", []string{
"-storageDataPath=" + tc.Dir() + "/vmstorage",
}, cli)
defer vmstorage.Stop()
vminsert := apptest.MustStartVminsert(t, "vminsert", []string{
"-storageNode=" + vmstorage.VminsertAddr(),
}, cli)
defer vminsert.Stop()
vmselectL1 := apptest.MustStartVmselect(t, "vmselect-level1", []string{
"-storageNode=" + vmstorage.VmselectAddr(),
}, cli)
defer vmselectL1.Stop()
vmselectL2 := apptest.MustStartVmselect(t, "vmselect-level2", []string{
"-storageNode=" + vmselectL1.ClusternativeListenAddr(),
}, cli)
defer vmselectL2.Stop()
// Insert 1000 unique time series.Wait for 2 seconds to let vmstorage
// flush pending items so they become searchable.
const numMetrics = 1000
records := make([]string, numMetrics)
for i := range numMetrics {
records[i] = fmt.Sprintf("metric_%d %d", i, rand.IntN(1000))
}
vminsert.PrometheusAPIV1ImportPrometheus(t, records, apptest.QueryOpts{Tenant: "0"})
time.Sleep(2 * time.Second)
// Retrieve all time series and verify that vmselect (L1) serves the complete
// set of time series.
seriesL1 := vmselectL1.PrometheusAPIV1Series(t, `{__name__=~".*"}`, apptest.QueryOpts{Tenant: "0"})
if got, want := len(seriesL1.Data), numMetrics; got != want {
t.Fatalf("unexpected level-1 series count: got %d, want %d", got, want)
}
// Retrieve all time series and verify that vmselect (L2) serves the complete
// set of time series.
seriesL2 := vmselectL2.PrometheusAPIV1Series(t, `{__name__=~".*"}`, apptest.QueryOpts{Tenant: "0"})
if got, want := len(seriesL2.Data), numMetrics; got != want {
t.Fatalf("unexpected level-2 series count: got %d, want %d", got, want)
}
}