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interceptors_test.go
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interceptors_test.go
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// Copyright 2017 David Ackroyd. All Rights Reserved.
// See LICENSE for licensing terms.
package grpc_recovery_test
import (
"testing"
"github.com/grpc-ecosystem/go-grpc-middleware"
"github.com/grpc-ecosystem/go-grpc-middleware/recovery"
"github.com/grpc-ecosystem/go-grpc-middleware/testing"
pb_testproto "github.com/grpc-ecosystem/go-grpc-middleware/testing/testproto"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"github.com/stretchr/testify/suite"
"golang.org/x/net/context"
"google.golang.org/grpc"
"google.golang.org/grpc/codes"
)
var (
goodPing = &pb_testproto.PingRequest{Value: "something", SleepTimeMs: 9999}
panicPing = &pb_testproto.PingRequest{Value: "panic", SleepTimeMs: 9999}
)
type recoveryAssertService struct {
pb_testproto.TestServiceServer
}
func (s *recoveryAssertService) Ping(ctx context.Context, ping *pb_testproto.PingRequest) (*pb_testproto.PingResponse, error) {
if ping.Value == "panic" {
panic("very bad thing happened")
}
return s.TestServiceServer.Ping(ctx, ping)
}
func (s *recoveryAssertService) PingList(ping *pb_testproto.PingRequest, stream pb_testproto.TestService_PingListServer) error {
if ping.Value == "panic" {
panic("very bad thing happened")
}
return s.TestServiceServer.PingList(ping, stream)
}
func TestRecoverySuite(t *testing.T) {
s := &RecoverySuite{
InterceptorTestSuite: &grpc_testing.InterceptorTestSuite{
TestService: &recoveryAssertService{TestServiceServer: &grpc_testing.TestPingService{T: t}},
ServerOpts: []grpc.ServerOption{
grpc_middleware.WithStreamServerChain(
grpc_recovery.StreamServerInterceptor()),
grpc_middleware.WithUnaryServerChain(
grpc_recovery.UnaryServerInterceptor()),
},
},
}
suite.Run(t, s)
}
type RecoverySuite struct {
*grpc_testing.InterceptorTestSuite
}
func (s *RecoverySuite) TestUnary_SuccessfulRequest() {
_, err := s.Client.Ping(s.SimpleCtx(), goodPing)
require.NoError(s.T(), err, "no error must occur")
}
func (s *RecoverySuite) TestUnary_PanickingRequest() {
_, err := s.Client.Ping(s.SimpleCtx(), panicPing)
require.Error(s.T(), err, "there must be an error")
assert.Equal(s.T(), codes.Internal, grpc.Code(err), "must error with internal")
assert.Equal(s.T(), "very bad thing happened", grpc.ErrorDesc(err), "must error with message")
}
func (s *RecoverySuite) TestStream_SuccessfulReceive() {
stream, err := s.Client.PingList(s.SimpleCtx(), goodPing)
require.NoError(s.T(), err, "should not fail on establishing the stream")
pong, err := stream.Recv()
require.NoError(s.T(), err, "no error must occur")
require.NotNil(s.T(), pong, "pong must not be nil")
}
func (s *RecoverySuite) TestStream_PanickingReceive() {
stream, err := s.Client.PingList(s.SimpleCtx(), panicPing)
require.NoError(s.T(), err, "should not fail on establishing the stream")
_, err = stream.Recv()
require.Error(s.T(), err, "there must be an error")
assert.Equal(s.T(), codes.Internal, grpc.Code(err), "must error with internal")
assert.Equal(s.T(), "very bad thing happened", grpc.ErrorDesc(err), "must error with message")
}
func TestRecoveryOverrideSuite(t *testing.T) {
opts := []grpc_recovery.Option{
grpc_recovery.WithRecoveryHandler(func(p interface{}) (err error) {
return grpc.Errorf(codes.Unknown, "panic triggered: %v", p)
}),
}
s := &RecoveryOverrideSuite{
InterceptorTestSuite: &grpc_testing.InterceptorTestSuite{
TestService: &recoveryAssertService{TestServiceServer: &grpc_testing.TestPingService{T: t}},
ServerOpts: []grpc.ServerOption{
grpc_middleware.WithStreamServerChain(
grpc_recovery.StreamServerInterceptor(opts...)),
grpc_middleware.WithUnaryServerChain(
grpc_recovery.UnaryServerInterceptor(opts...)),
},
},
}
suite.Run(t, s)
}
type RecoveryOverrideSuite struct {
*grpc_testing.InterceptorTestSuite
}
func (s *RecoveryOverrideSuite) TestUnary_SuccessfulRequest() {
_, err := s.Client.Ping(s.SimpleCtx(), goodPing)
require.NoError(s.T(), err, "no error must occur")
}
func (s *RecoveryOverrideSuite) TestUnary_PanickingRequest() {
_, err := s.Client.Ping(s.SimpleCtx(), panicPing)
require.Error(s.T(), err, "there must be an error")
assert.Equal(s.T(), codes.Unknown, grpc.Code(err), "must error with unknown")
assert.Equal(s.T(), "panic triggered: very bad thing happened", grpc.ErrorDesc(err), "must error with message")
}
func (s *RecoveryOverrideSuite) TestStream_SuccessfulReceive() {
stream, err := s.Client.PingList(s.SimpleCtx(), goodPing)
require.NoError(s.T(), err, "should not fail on establishing the stream")
pong, err := stream.Recv()
require.NoError(s.T(), err, "no error must occur")
require.NotNil(s.T(), pong, "pong must not be nil")
}
func (s *RecoveryOverrideSuite) TestStream_PanickingReceive() {
stream, err := s.Client.PingList(s.SimpleCtx(), panicPing)
require.NoError(s.T(), err, "should not fail on establishing the stream")
_, err = stream.Recv()
require.Error(s.T(), err, "there must be an error")
assert.Equal(s.T(), codes.Unknown, grpc.Code(err), "must error with unknown")
assert.Equal(s.T(), "panic triggered: very bad thing happened", grpc.ErrorDesc(err), "must error with message")
}