Files
threshold/internal/daemon/controller/testing.go
T
Todd b58dada40d Move the server daemons into their own package (#2061)
* Move the server daemons into their own package

With this change the internal/server package now is dedicated to the server domain (workers and controllers) and not to the server daemons.
The hope is that this will make it easier to keep the daemons decoupled from the representation of the servers in the database.
2022-05-09 12:45:10 -07:00

817 lines
23 KiB
Go

package controller
import (
"context"
"encoding/json"
"fmt"
"net"
"strconv"
"strings"
"testing"
"time"
grpc_middleware "github.com/grpc-ecosystem/go-grpc-middleware"
"github.com/hashicorp/boundary/api"
"github.com/hashicorp/boundary/api/authmethods"
"github.com/hashicorp/boundary/api/authtokens"
"github.com/hashicorp/boundary/internal/authtoken"
"github.com/hashicorp/boundary/internal/cmd/base"
"github.com/hashicorp/boundary/internal/cmd/config"
"github.com/hashicorp/boundary/internal/db"
"github.com/hashicorp/boundary/internal/db/schema"
"github.com/hashicorp/boundary/internal/gen/testing/interceptor"
"github.com/hashicorp/boundary/internal/iam"
"github.com/hashicorp/boundary/internal/intglobals"
"github.com/hashicorp/boundary/internal/kms"
"github.com/hashicorp/boundary/internal/observability/event"
"github.com/hashicorp/boundary/internal/servers"
"github.com/hashicorp/boundary/internal/session"
"github.com/hashicorp/go-hclog"
wrapping "github.com/hashicorp/go-kms-wrapping/v2"
"github.com/hashicorp/go-secure-stdlib/base62"
"github.com/hashicorp/go-secure-stdlib/strutil"
"github.com/prometheus/client_golang/prometheus"
"github.com/stretchr/testify/require"
"google.golang.org/grpc"
"google.golang.org/grpc/test/bufconn"
)
const (
DefaultOrgId = "o_1234567890"
DefaultProjectId = "p_1234567890"
DefaultTestPasswordAuthMethodId = "ampw_1234567890"
DefaultTestOidcAuthMethodId = "amoidc_1234567890"
DefaultTestLoginName = "admin"
DefaultTestUnprivilegedLoginName = "user"
DefaultTestPassword = "passpass"
DefaultTestUserId = "u_1234567890"
DefaultTestPasswordAccountId = intglobals.NewPasswordAccountPrefix + "_1234567890"
DefaultTestOidcAccountId = "acctoidc_1234567890"
DefaultTestUnprivilegedPasswordAccountId = intglobals.NewPasswordAccountPrefix + "_0987654321"
DefaultTestUnprivilegedOidcAccountId = "acctoidc_0987654321"
DefaultTestPluginId = "pl_1234567890"
)
// TestController wraps a base.Server and Controller to provide a
// fully-programmatic controller for tests. Error checking (for instance, for
// valid config) is not stringent at the moment.
type TestController struct {
b *base.Server
c *Controller
t testing.TB
apiAddrs []string // The address the Controller API is listening on
clusterAddrs []string
client *api.Client
ctx context.Context
cancel context.CancelFunc
name string
opts *TestControllerOpts
}
// Server returns the underlying base server
func (tc *TestController) Server() *base.Server {
return tc.b
}
// Controller returns the underlying controller
func (tc *TestController) Controller() *Controller {
return tc.c
}
func (tc *TestController) Config() *Config {
return tc.c.conf
}
func (tc *TestController) Client() *api.Client {
return tc.client
}
func (tc *TestController) Context() context.Context {
return tc.ctx
}
func (tc *TestController) Kms() *kms.Kms {
return tc.c.kms
}
func (tc *TestController) IamRepo() *iam.Repository {
repo, err := tc.c.IamRepoFn()
if err != nil {
tc.t.Fatal(err)
}
return repo
}
func (tc *TestController) AuthTokenRepo() *authtoken.Repository {
repo, err := tc.c.AuthTokenRepoFn()
if err != nil {
tc.t.Fatal(err)
}
return repo
}
func (tc *TestController) ServersRepo() *servers.Repository {
repo, err := tc.c.ServersRepoFn()
if err != nil {
tc.t.Fatal(err)
}
return repo
}
func (tc *TestController) ConnectionsRepo() *session.ConnectionRepository {
repo, err := tc.c.ConnectionRepoFn()
if err != nil {
tc.t.Fatal(err)
}
return repo
}
func (tc *TestController) Cancel() {
tc.cancel()
}
func (tc *TestController) Name() string {
return tc.name
}
func (tc *TestController) ApiAddrs() []string {
return tc.addrs("api")
}
func (tc *TestController) ClusterAddrs() []string {
return tc.addrs("cluster")
}
func (tc *TestController) DbConn() *db.DB {
return tc.b.Database
}
func (tc *TestController) Logger() hclog.Logger {
return tc.b.Logger
}
func (tc *TestController) Token() *authtokens.AuthToken {
if tc.opts.DisableAuthMethodCreation {
tc.t.Fatal("no default auth method ID configured")
return nil
}
result, err := authmethods.NewClient(tc.Client()).Authenticate(
tc.Context(),
tc.b.DevPasswordAuthMethodId,
"login",
map[string]interface{}{
"login_name": tc.b.DevLoginName,
"password": tc.b.DevPassword,
},
)
if err != nil {
tc.t.Fatal(fmt.Errorf("error logging in: %w", err))
return nil
}
token := new(authtokens.AuthToken)
if err := json.Unmarshal(result.GetRawAttributes(), token); err != nil {
tc.t.Fatal(fmt.Errorf("error unmarshaling token: %w", err))
return nil
}
return token
}
func (tc *TestController) UnprivilegedToken() *authtokens.AuthToken {
if tc.opts.DisableAuthMethodCreation {
tc.t.Error("no default auth method ID configured")
return nil
}
result, err := authmethods.NewClient(tc.Client()).Authenticate(
tc.Context(),
tc.b.DevPasswordAuthMethodId,
"login",
map[string]interface{}{
"login_name": tc.b.DevUnprivilegedLoginName,
"password": tc.b.DevUnprivilegedPassword,
},
)
if err != nil {
tc.t.Error(fmt.Errorf("error logging in: %w", err))
return nil
}
token := new(authtokens.AuthToken)
if err := json.Unmarshal(result.GetRawAttributes(), token); err != nil {
tc.t.Error(fmt.Errorf("error unmarshaling token: %w", err))
return nil
}
return token
}
func (tc *TestController) addrs(purpose string) []string {
var prefix string
switch purpose {
case "api":
if tc.apiAddrs != nil {
return tc.apiAddrs
}
prefix = "http://"
case "cluster":
if tc.clusterAddrs != nil {
return tc.clusterAddrs
}
}
addrs := make([]string, 0, len(tc.b.Listeners))
for _, listener := range tc.b.Listeners {
if listener.Config.Purpose[0] == purpose {
var addr net.Addr
switch purpose {
case "api":
addr = listener.ApiListener.Addr()
case "cluster":
addr = listener.ClusterListener.Addr()
case "ops":
addr = listener.OpsListener.Addr()
}
switch {
case strings.HasPrefix(addr.String(), "/"):
switch purpose {
case "api":
addrs = append(addrs, fmt.Sprintf("unix://%s", addr.String()))
default:
addrs = append(addrs, addr.String())
}
default:
tcpAddr, ok := addr.(*net.TCPAddr)
if !ok {
tc.t.Fatal("could not parse address as a TCP addr")
}
addr := fmt.Sprintf("%s%s", prefix, net.JoinHostPort(tcpAddr.IP.String(), strconv.Itoa(tcpAddr.Port)))
addrs = append(addrs, addr)
}
}
}
switch purpose {
case "api":
tc.apiAddrs = addrs
case "cluster":
tc.clusterAddrs = addrs
}
return addrs
}
func (tc *TestController) buildClient() {
client, err := api.NewClient(nil)
if err != nil {
tc.t.Fatal(fmt.Errorf("error creating client: %w", err))
}
apiAddrs := tc.ApiAddrs()
if len(apiAddrs) == 0 {
tc.t.Fatal("no API addresses found")
}
if err := client.SetAddr(apiAddrs[0]); err != nil {
tc.t.Fatal(fmt.Errorf("error setting client address: %w", err))
}
// Because this is using the real lib it can pick up from stored locations
// like the system keychain. Explicitly clear the token to ensure we
// understand the client state at the start of each test.
client.SetToken("")
tc.client = client
}
// Shutdown runs any cleanup functions; be sure to run this after your test is
// done
func (tc *TestController) Shutdown() {
if tc.b != nil {
close(tc.b.ShutdownCh)
}
tc.cancel()
if tc.c != nil {
if err := tc.c.Shutdown(); err != nil {
tc.t.Error(err)
}
}
if tc.b != nil {
if err := tc.b.RunShutdownFuncs(); err != nil {
tc.t.Error(err)
}
if !tc.opts.DisableDatabaseDestruction {
if tc.b.DestroyDevDatabase(tc.ctx) != nil {
if err := tc.b.DestroyDevDatabase(tc.ctx); err != nil {
tc.t.Error(err)
}
}
}
}
}
type TestControllerOpts struct {
// ConfigHcl is the HCL to be parsed to generate the initial config.
// Overrides Config if both are set.
ConfigHcl string
// Config; if not provided a dev one will be created, unless ConfigHcl is
// set.
Config *config.Config
// DefaultPasswordAuthMethodId is the default password method ID to use, if set.
DefaultPasswordAuthMethodId string
// DefaultOidcAuthMethodId is the default OIDC method ID to use, if set.
DefaultOidcAuthMethodId string
// DefaultLoginName is the login name used when creating the default admin account.
DefaultLoginName string
// DefaultUnprivilegedLoginName is the login name used when creating the default unprivileged account.
DefaultUnprivilegedLoginName string
// DefaultPassword is the password used when creating the default accounts.
DefaultPassword string
// DisableInitialLoginRoleCreation can be set true to disable creating the
// global scope login role automatically.
DisableInitialLoginRoleCreation bool
// DisableAuthMethodCreation can be set true to disable creating an auth
// method automatically.
DisableAuthMethodCreation bool
// DisableOidcAuthMethodCreation can be set true to disable the built-in
// OIDC listener. Useful for e.g. unix listener tests.
DisableOidcAuthMethodCreation bool
// DisableScopesCreation can be set true to disable creating scopes
// automatically.
DisableScopesCreation bool
// DisableHostResourcesCreation can be set true to disable creating a host
// catalog and related resources automatically.
DisableHostResourcesCreation bool
// DisableTargetCreation can be set true to disable creating a target
// automatically.
DisableTargetCreation bool
// DisableDatabaseCreation can be set true to disable creating a dev
// database
DisableDatabaseCreation bool
// DisableDatabaseDestruction can be set true to allow a database to be
// created but examined after-the-fact
DisableDatabaseDestruction bool
// DatabaseUrl will cause the test controller to connect to an existing
// database given the url instead of creating a new one
DatabaseUrl string
// DisableDatabaseTemplate forces using a fresh Postgres instance in Docker
// instead of using a local templated version. Useful for CI of external
// repos, like Terraform.
DisableDatabaseTemplate bool
// If true, the controller will not be started
DisableAutoStart bool
// DisableAuthorizationFailures will still cause authz checks to be
// performed but they won't cause 403 Forbidden. Useful for API-level
// testing to avoid a lot of faff.
DisableAuthorizationFailures bool
// The controller KMS to use, or one will be created
RootKms wrapping.Wrapper
// The worker auth KMS to use, or one will be created
WorkerAuthKms wrapping.Wrapper
// The recovery KMS to use, or one will be created
RecoveryKms wrapping.Wrapper
// Disables KMS key creation. Only valid when a database url is specified,
// at the moment.
DisableKmsKeyCreation bool
// The name to use for the controller, otherwise one will be randomly
// generated, unless provided in a non-nil Config
Name string
// The suffix to use for initial resources
InitialResourcesSuffix string
// The logger to use, or one will be created
Logger hclog.Logger
// The registerer to use for registering all the collectors. Nil means
// no metrics are registered.
PrometheusRegisterer prometheus.Registerer
// A cluster address for overriding the advertised controller listener
// (overrides address provided in config, if any)
PublicClusterAddr string
// The amount of time to wait before marking connections as closed when a
// worker has not reported in
StatusGracePeriodDuration time.Duration
// The amount of time between the scheduler waking up to run it's registered
// jobs.
SchedulerRunJobInterval time.Duration
}
func NewTestController(t testing.TB, opts *TestControllerOpts) *TestController {
const op = "controller.NewTestController"
ctx, cancel := context.WithCancel(context.Background())
if opts == nil {
opts = new(TestControllerOpts)
}
tc := &TestController{
t: t,
ctx: ctx,
cancel: cancel,
opts: opts,
}
conf := TestControllerConfig(t, ctx, tc, opts)
var err error
tc.c, err = New(ctx, conf)
if err != nil {
tc.Shutdown()
t.Fatal(err)
}
tc.buildClient()
if !opts.DisableAutoStart {
if err := tc.c.Start(); err != nil {
tc.Shutdown()
t.Fatal(err)
}
}
return tc
}
// TestControllerConfig provides a way to create a config for a TestController.
// The tc passed as a parameter will be modified by this func.
func TestControllerConfig(t testing.TB, ctx context.Context, tc *TestController, opts *TestControllerOpts) *Config {
const op = "controller.TestControllerConfig"
if opts == nil {
opts = new(TestControllerOpts)
}
// Base server
tc.b = base.NewServer(&base.Command{
Context: ctx,
ShutdownCh: make(chan struct{}),
})
// Get dev config, or use a provided one
var err error
switch {
case opts.ConfigHcl != "":
cfg, err := config.Parse(opts.ConfigHcl)
if err != nil {
t.Fatal(err)
}
opts.Config = cfg
case opts.Config == nil:
opts.Config, err = config.DevController()
if err != nil {
t.Fatal(err)
}
opts.Config.Controller.Name = opts.Name
}
if opts.DefaultPasswordAuthMethodId != "" {
tc.b.DevPasswordAuthMethodId = opts.DefaultPasswordAuthMethodId
} else {
tc.b.DevPasswordAuthMethodId = DefaultTestPasswordAuthMethodId
}
if opts.DefaultOidcAuthMethodId != "" {
tc.b.DevOidcAuthMethodId = opts.DefaultOidcAuthMethodId
} else {
tc.b.DevOidcAuthMethodId = DefaultTestOidcAuthMethodId
}
if opts.DefaultLoginName != "" {
tc.b.DevLoginName = opts.DefaultLoginName
} else {
tc.b.DevLoginName = DefaultTestLoginName
}
if opts.DefaultUnprivilegedLoginName != "" {
tc.b.DevUnprivilegedLoginName = opts.DefaultUnprivilegedLoginName
} else {
tc.b.DevUnprivilegedLoginName = DefaultTestUnprivilegedLoginName
}
if opts.DefaultPassword != "" {
tc.b.DevPassword = opts.DefaultPassword
tc.b.DevUnprivilegedPassword = opts.DefaultPassword
} else {
tc.b.DevPassword = DefaultTestPassword
tc.b.DevUnprivilegedPassword = DefaultTestPassword
}
tc.b.DevOrgId = DefaultOrgId
tc.b.DevProjectId = DefaultProjectId
tc.b.DevPasswordAccountId = DefaultTestPasswordAccountId
tc.b.DevOidcAccountId = DefaultTestOidcAccountId
tc.b.DevUnprivilegedPasswordAccountId = DefaultTestUnprivilegedPasswordAccountId
tc.b.DevUnprivilegedOidcAccountId = DefaultTestUnprivilegedOidcAccountId
tc.b.DevLoopbackHostPluginId = DefaultTestPluginId
tc.b.EnabledPlugins = append(tc.b.EnabledPlugins, base.EnabledPluginHostLoopback)
// Start a logger
tc.b.Logger = opts.Logger
if tc.b.Logger == nil {
tc.b.Logger = hclog.New(&hclog.LoggerOptions{
Level: hclog.Trace,
Mutex: tc.b.StderrLock,
})
}
tc.b.PrometheusRegisterer = opts.PrometheusRegisterer
if opts.Config.Controller == nil {
opts.Config.Controller = new(config.Controller)
}
if opts.Config.Controller.Name == "" {
opts.Config.Controller.Name, err = opts.Config.Controller.InitNameIfEmpty()
if err != nil {
t.Fatal(err)
}
}
opts.Config.Controller.SchedulerRunJobInterval = opts.SchedulerRunJobInterval
if err := tc.b.SetupEventing(tc.b.Logger, tc.b.StderrLock, opts.Config.Controller.Name, base.WithEventerConfig(opts.Config.Eventing)); err != nil {
t.Fatal(err)
}
// Initialize status grace period
tc.b.SetStatusGracePeriodDuration(opts.StatusGracePeriodDuration)
tc.name = opts.Config.Controller.Name
if opts.InitialResourcesSuffix != "" {
suffix := opts.InitialResourcesSuffix
tc.b.DevPasswordAuthMethodId = "ampw_" + suffix
tc.b.DevOidcAuthMethodId = "amoidc_" + suffix
tc.b.DevHostCatalogId = "hcst_" + suffix
tc.b.DevHostId = "hst_" + suffix
tc.b.DevHostSetId = "hsst_" + suffix
tc.b.DevOrgId = "o_" + suffix
tc.b.DevProjectId = "p_" + suffix
tc.b.DevTargetId = "ttcp_" + suffix
tc.b.DevUserId = "u_" + suffix
tc.b.DevUnprivilegedUserId = "u_" + strutil.Reverse(strings.TrimPrefix(tc.b.DevUserId, "u_"))
} else {
tc.b.DevUserId = DefaultTestUserId
}
tc.b.DevUnprivilegedUserId = "u_" + strutil.Reverse(strings.TrimPrefix(tc.b.DevUserId, "u_"))
// Set up KMSes
switch {
case opts.RootKms != nil && opts.WorkerAuthKms != nil:
tc.b.RootKms = opts.RootKms
tc.b.WorkerAuthKms = opts.WorkerAuthKms
case opts.RootKms == nil && opts.WorkerAuthKms == nil:
if err := tc.b.SetupKMSes(tc.b.Context, nil, opts.Config); err != nil {
t.Fatal(err)
}
default:
t.Fatal("either controller and worker auth KMS must both be set, or neither")
}
if opts.RecoveryKms != nil {
tc.b.RecoveryKms = opts.RecoveryKms
}
// Ensure the listeners use random port allocation
for _, listener := range opts.Config.Listeners {
listener.RandomPort = true
}
if err := tc.b.SetupListeners(nil, opts.Config.SharedConfig, []string{"api", "cluster", "ops"}); err != nil {
t.Fatal(err)
}
if err := tc.b.SetupControllerPublicClusterAddress(opts.Config, ""); err != nil {
t.Fatal(err)
}
// Set cluster address if we supplied one (overrides one in config)
if opts.PublicClusterAddr != "" {
opts.Config.Controller.PublicClusterAddr = opts.PublicClusterAddr
}
if opts.DatabaseUrl != "" {
tc.b.DatabaseUrl = opts.DatabaseUrl
if _, err := schema.MigrateStore(ctx, "postgres", tc.b.DatabaseUrl); err != nil {
t.Fatal(err)
}
if err := tc.b.ConnectToDatabase(tc.ctx, "postgres"); err != nil {
t.Fatal(err)
}
if !opts.DisableKmsKeyCreation {
if err := tc.b.CreateGlobalKmsKeys(ctx); err != nil {
t.Fatal(err)
}
if !opts.DisableInitialLoginRoleCreation {
if _, err := tc.b.CreateInitialLoginRole(ctx); err != nil {
t.Fatal(err)
}
if !opts.DisableAuthMethodCreation {
if _, _, err := tc.b.CreateInitialPasswordAuthMethod(ctx); err != nil {
t.Fatal(err)
}
if !opts.DisableOidcAuthMethodCreation {
if err := tc.b.CreateDevOidcAuthMethod(ctx); err != nil {
t.Fatal(err)
}
}
if !opts.DisableScopesCreation {
if _, _, err := tc.b.CreateInitialScopes(ctx); err != nil {
t.Fatal(err)
}
if !opts.DisableHostResourcesCreation {
if _, _, _, err := tc.b.CreateInitialHostResources(ctx); err != nil {
t.Fatal(err)
}
if !opts.DisableTargetCreation {
if _, err := tc.b.CreateInitialTarget(ctx); err != nil {
t.Fatal(err)
}
}
}
}
}
}
}
} else if !opts.DisableDatabaseCreation {
var createOpts []base.Option
if opts.DisableAuthMethodCreation {
createOpts = append(createOpts, base.WithSkipAuthMethodCreation())
}
if opts.DisableOidcAuthMethodCreation {
createOpts = append(createOpts, base.WithSkipOidcAuthMethodCreation())
}
if !opts.DisableDatabaseTemplate {
createOpts = append(createOpts, base.WithDatabaseTemplate("boundary_template"))
}
if err := tc.b.CreateDevDatabase(ctx, createOpts...); err != nil {
t.Fatal(err)
}
}
return &Config{
RawConfig: opts.Config,
Server: tc.b,
DisableAuthorizationFailures: opts.DisableAuthorizationFailures,
}
}
func (tc *TestController) AddClusterControllerMember(t testing.TB, opts *TestControllerOpts) *TestController {
const op = "controller.(TestController).AddClusterControllerMember"
if opts == nil {
opts = new(TestControllerOpts)
}
nextOpts := &TestControllerOpts{
DatabaseUrl: tc.c.conf.DatabaseUrl,
DefaultPasswordAuthMethodId: tc.c.conf.DevPasswordAuthMethodId,
DefaultOidcAuthMethodId: tc.c.conf.DevOidcAuthMethodId,
RootKms: tc.c.conf.RootKms,
WorkerAuthKms: tc.c.conf.WorkerAuthKms,
RecoveryKms: tc.c.conf.RecoveryKms,
Name: opts.Name,
Logger: tc.c.conf.Logger,
DefaultLoginName: tc.b.DevLoginName,
DefaultPassword: tc.b.DevPassword,
DisableKmsKeyCreation: true,
DisableAuthMethodCreation: true,
PublicClusterAddr: opts.PublicClusterAddr,
StatusGracePeriodDuration: opts.StatusGracePeriodDuration,
}
if opts.Logger != nil {
nextOpts.Logger = opts.Logger
}
if nextOpts.Name == "" {
var err error
nextOpts.Name, err = base62.Random(5)
if err != nil {
t.Fatal(err)
}
event.WriteSysEvent(context.TODO(), op, "controller name generated", "name", nextOpts.Name)
}
return NewTestController(t, nextOpts)
}
// WaitForNextWorkerStatusUpdate waits for the next status check from a worker to
// come in. If it does not come in within the default status grace
// period, this function returns an error.
func (tc *TestController) WaitForNextWorkerStatusUpdate(workerId string) error {
const op = "controller.(TestController).WaitForNextWorkerStatusUpdate"
ctx := context.TODO()
event.WriteSysEvent(ctx, op, "waiting for next status report from worker", "worker", workerId)
waitStatusStart := time.Now()
ctx, cancel := context.WithTimeout(tc.ctx, tc.b.StatusGracePeriodDuration)
defer cancel()
var err error
for {
if err = func() error {
select {
case <-ctx.Done():
return ctx.Err()
case <-time.After(time.Second):
// pass
}
return nil
}(); err != nil {
break
}
var waitStatusCurrent time.Time
tc.Controller().WorkerStatusUpdateTimes().Range(func(k, v interface{}) bool {
if k == nil || v == nil {
err = fmt.Errorf("nil key or value on entry: key=%#v value=%#v", k, v)
return false
}
workerStatusUpdateId, ok := k.(string)
if !ok {
err = fmt.Errorf("unexpected type %T for key: key=%#v value=%#v", k, k, v)
return false
}
workerStatusUpdateTime, ok := v.(time.Time)
if !ok {
err = fmt.Errorf("unexpected type %T for value: key=%#v value=%#v", k, k, v)
return false
}
if workerStatusUpdateId == workerId {
waitStatusCurrent = workerStatusUpdateTime
return false
}
return true
})
if err != nil {
break
}
if waitStatusCurrent.Sub(waitStatusStart) > 0 {
break
}
}
if err != nil {
event.WriteError(ctx, op, err, event.WithInfoMsg("error waiting for next status report from worker", "worker", workerId))
return err
}
event.WriteSysEvent(ctx, op, "waiting for next status report from worker received successfully", "worker", workerId)
return nil
}
// startTestGreeterService is intended to facilitate the testing of
// interceptors. You provide a greeter service that produces appropriate
// responses to test your interceptor(s). This test function will start up a
// test greeter service wrapped with the specified interceptors and return an
// initialized client for the service. The test service will be stopped/cleaned
// up after the test (or subtests) have completed.
func startTestGreeterService(t testing.TB, greeter interceptor.GreeterServiceServer, interceptors ...grpc.UnaryServerInterceptor) interceptor.GreeterServiceClient {
t.Helper()
require := require.New(t)
dialCtx := context.Background()
buffer := 1024 * 1024
listener := bufconn.Listen(buffer)
s := grpc.NewServer(
grpc.UnaryInterceptor(grpc_middleware.ChainUnaryServer(interceptors...)),
)
interceptor.RegisterGreeterServiceServer(s, greeter)
// Use error channel so that we can use test assertions on the returned error.
// It is illegal to call `t.FailNow()` from a goroutine.
// https://pkg.go.dev/testing#T.FailNow
errChan := make(chan error)
go func() {
errChan <- s.Serve(listener)
}()
t.Cleanup(func() {
// Will block until we stopped serving
require.NoError(<-errChan)
})
conn, _ := grpc.DialContext(dialCtx, "", grpc.WithContextDialer(func(context.Context, string) (net.Conn, error) {
return listener.Dial()
}), grpc.WithInsecure())
t.Cleanup(func() {
listener.Close()
s.Stop()
})
client := interceptor.NewGreeterServiceClient(conn)
return client
}