grafana/pkg/server/server_test.go

95 lines
2.4 KiB
Go

package server
import (
"context"
"errors"
"fmt"
"testing"
"time"
"github.com/prometheus/client_golang/prometheus"
"github.com/stretchr/testify/require"
"github.com/grafana/grafana/pkg/infra/tracing"
"github.com/grafana/grafana/pkg/registry"
"github.com/grafana/grafana/pkg/registry/backgroundsvcs"
"github.com/grafana/grafana/pkg/registry/backgroundsvcs/adapter"
"github.com/grafana/grafana/pkg/services/accesscontrol/acimpl"
"github.com/grafana/grafana/pkg/setting"
)
type testService struct {
started chan struct{}
runErr error
isDisabled bool
}
func newTestService(runErr error, disabled bool) *testService {
return &testService{
started: make(chan struct{}),
runErr: runErr,
isDisabled: disabled,
}
}
func (s *testService) Run(ctx context.Context) error {
if s.isDisabled {
return fmt.Errorf("Shouldn't run disabled service")
}
if s.runErr != nil {
return s.runErr
}
close(s.started)
<-ctx.Done()
return ctx.Err()
}
func (s *testService) IsDisabled() bool {
return s.isDisabled
}
func testServer(t *testing.T, services ...registry.BackgroundService) *Server {
t.Helper()
s, err := newServer(Options{}, setting.NewCfg(), nil, &acimpl.Service{}, nil, backgroundsvcs.NewBackgroundServiceRegistry(services...), tracing.NewNoopTracerService(), prometheus.NewRegistry())
require.NoError(t, err)
s.managerAdapter.WithDependencies(map[string][]string{
adapter.Core: {},
adapter.BackgroundServices: {adapter.Core},
})
// Required to skip configuration initialization that causes
// DI errors in this test.
s.isInitialized = true
return s
}
func TestServer_Run_Error(t *testing.T) {
testErr := errors.New("boom")
s := testServer(t, newTestService(nil, false), newTestService(testErr, false))
err := s.Run()
require.Error(t, err)
require.Contains(t, err.Error(), testErr.Error())
}
func TestServer_Shutdown(t *testing.T) {
t.Run("successful shutdown", func(t *testing.T) {
ctx := context.Background()
s := testServer(t, newTestService(nil, false), newTestService(nil, true))
ch := make(chan error)
go func() {
defer close(ch)
err := s.managerAdapter.AwaitRunning(ctx)
require.NoError(t, err)
ctx, cancel := context.WithTimeout(ctx, 3*time.Second)
defer cancel()
err = s.Shutdown(ctx, "test interrupt")
ch <- err
}()
err := s.Run()
require.NoError(t, err)
err = <-ch
require.NoError(t, err)
})
}