zitadel/internal/integration/integration.go
2023-04-26 20:49:33 +03:00

131 lines
3.1 KiB
Go

// Package integration provides helpers for integration testing.
package integration
import (
"bytes"
"context"
_ "embed"
"fmt"
"os"
"strings"
"sync"
"time"
"github.com/spf13/viper"
"github.com/zitadel/logging"
"google.golang.org/grpc"
"google.golang.org/grpc/credentials/insecure"
"github.com/zitadel/zitadel/cmd"
"github.com/zitadel/zitadel/cmd/start"
"github.com/zitadel/zitadel/pkg/grpc/admin"
)
var (
//go:embed config/zitadel.yaml
zitadelYAML []byte
//go:embed config/cockroach.yaml
cockroachYAML []byte
//go:embed config/postgres.yaml
postgresYAML []byte
)
type Tester struct {
*start.Server
GRPCClientConn *grpc.ClientConn
wg sync.WaitGroup // used for shutdown
}
const commandLine = `start --masterkey MasterkeyNeedsToHave32Characters`
func (s *Tester) createClientConn(ctx context.Context) {
target := fmt.Sprintf("localhost:%d", s.Config.Port)
cc, err := grpc.DialContext(ctx, target,
grpc.WithBlock(), grpc.WithTransportCredentials(insecure.NewCredentials()),
)
if err != nil {
s.Shutdown <- os.Interrupt
s.wg.Wait()
}
logging.OnError(err).Fatal("integration tester client dial")
logging.New().WithField("target", target).Info("finished dialing grpc client conn")
s.GRPCClientConn = cc
err = s.pollHealth(ctx)
logging.OnError(err).Fatal("integration tester health")
}
// pollHealth waits until a healthy status is reported.
// TODO: remove when we make the setup blocking on all
// projections completed.
func (s *Tester) pollHealth(ctx context.Context) (err error) {
client := admin.NewAdminServiceClient(s.GRPCClientConn)
for {
err = func(ctx context.Context) error {
ctx, cancel := context.WithTimeout(ctx, 5*time.Second)
defer cancel()
_, err := client.Healthz(ctx, &admin.HealthzRequest{})
return err
}(ctx)
if err == nil {
return nil
}
logging.WithError(err).Info("poll healthz")
select {
case <-ctx.Done():
return ctx.Err()
case <-time.After(time.Second):
continue
}
}
}
func (s *Tester) Done() {
err := s.GRPCClientConn.Close()
logging.OnError(err).Error("integration tester client close")
s.Shutdown <- os.Interrupt
s.wg.Wait()
}
func NewTester(ctx context.Context) *Tester {
args := strings.Split(commandLine, " ")
sc := make(chan *start.Server)
//nolint:contextcheck
cmd := cmd.New(os.Stdout, os.Stdin, args, sc)
cmd.SetArgs(args)
err := viper.MergeConfig(bytes.NewBuffer(zitadelYAML))
logging.OnError(err).Fatal()
flavor := os.Getenv("INTEGRATION_DB_FLAVOR")
switch flavor {
case "cockroach", "":
err = viper.MergeConfig(bytes.NewBuffer(cockroachYAML))
case "postgres":
err = viper.MergeConfig(bytes.NewBuffer(postgresYAML))
default:
logging.New().WithField("flavor", flavor).Fatal("unknown db flavor set in INTEGRATION_DB_FLAVOR")
}
logging.OnError(err).Fatal()
tester := new(Tester)
tester.wg.Add(1)
go func(wg *sync.WaitGroup) {
logging.OnError(cmd.Execute()).Fatal()
wg.Done()
}(&tester.wg)
select {
case tester.Server = <-sc:
case <-ctx.Done():
logging.OnError(ctx.Err()).Fatal("waiting for integration tester server")
}
tester.createClientConn(ctx)
return tester
}