1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
|
package proxy_test
import (
"context"
"net"
"testing"
"github.com/stretchr/testify/require"
"gitlab.com/gitlab-org/gitaly/internal/praefect/grpc-proxy/proxy"
testservice "gitlab.com/gitlab-org/gitaly/internal/praefect/grpc-proxy/testdata"
"google.golang.org/grpc"
)
func newListener(tb testing.TB) net.Listener {
listener, err := net.Listen("tcp", "127.0.0.1:0")
require.NoError(tb, err, "must be able to allocate a port for listener")
return listener
}
func newBackendPinger(tb testing.TB, ctx context.Context) (*grpc.ClientConn, *interceptPinger, func()) {
ip := &interceptPinger{}
done := make(chan struct{})
srvr := grpc.NewServer()
listener := newListener(tb)
testservice.RegisterTestServiceServer(srvr, ip)
go func() {
defer close(done)
srvr.Serve(listener)
}()
cc, err := grpc.DialContext(
ctx,
listener.Addr().String(),
grpc.WithInsecure(),
grpc.WithBlock(),
grpc.WithDefaultCallOptions(
grpc.ForceCodec(proxy.NewCodec()),
),
)
require.NoError(tb, err)
cleanup := func() {
srvr.GracefulStop()
require.NoError(tb, cc.Close())
<-done
}
return cc, ip, cleanup
}
func newProxy(tb testing.TB, ctx context.Context, director proxy.StreamDirector, svc, method string) (*grpc.ClientConn, func()) {
proxySrvr := grpc.NewServer(
grpc.CustomCodec(proxy.NewCodec()),
grpc.UnknownServiceHandler(proxy.TransparentHandler(director)),
)
proxy.RegisterService(proxySrvr, director, svc, method)
done := make(chan struct{})
listener := newListener(tb)
go func() {
defer close(done)
proxySrvr.Serve(listener)
}()
proxyCC, err := grpc.DialContext(
ctx,
listener.Addr().String(),
grpc.WithInsecure(),
grpc.WithBlock(),
)
require.NoError(tb, err)
cleanup := func() {
proxySrvr.GracefulStop()
require.NoError(tb, proxyCC.Close())
<-done
}
return proxyCC, cleanup
}
// interceptPinger allows an RPC to be intercepted with a custom
// function defined in each unit test
type interceptPinger struct {
pingStream func(testservice.TestService_PingStreamServer) error
pingEmpty func(context.Context, *testservice.Empty) (*testservice.PingResponse, error)
ping func(context.Context, *testservice.PingRequest) (*testservice.PingResponse, error)
pingError func(context.Context, *testservice.PingRequest) (*testservice.Empty, error)
pingList func(*testservice.PingRequest, testservice.TestService_PingListServer) error
}
func (ip *interceptPinger) PingStream(stream testservice.TestService_PingStreamServer) error {
return ip.pingStream(stream)
}
func (ip *interceptPinger) PingEmpty(ctx context.Context, req *testservice.Empty) (*testservice.PingResponse, error) {
return ip.pingEmpty(ctx, req)
}
func (ip *interceptPinger) Ping(ctx context.Context, req *testservice.PingRequest) (*testservice.PingResponse, error) {
return ip.ping(ctx, req)
}
func (ip *interceptPinger) PingError(ctx context.Context, req *testservice.PingRequest) (*testservice.Empty, error) {
return ip.pingError(ctx, req)
}
func (ip *interceptPinger) PingList(req *testservice.PingRequest, stream testservice.TestService_PingListServer) error {
return ip.pingList(req, stream)
}
|