| // Copyright 2017 Google Inc. All Rights Reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| package rpcreplay |
| |
| import ( |
| "bytes" |
| "io" |
| "testing" |
| |
| ipb "cloud.google.com/go/internal/rpcreplay/proto/intstore" |
| rpb "cloud.google.com/go/internal/rpcreplay/proto/rpcreplay" |
| "cloud.google.com/go/internal/testutil" |
| "github.com/golang/protobuf/proto" |
| "golang.org/x/net/context" |
| "google.golang.org/grpc" |
| "google.golang.org/grpc/codes" |
| "google.golang.org/grpc/status" |
| ) |
| |
| func TestRecordIO(t *testing.T) { |
| buf := &bytes.Buffer{} |
| want := []byte{1, 2, 3} |
| if err := writeRecord(buf, want); err != nil { |
| t.Fatal(err) |
| } |
| got, err := readRecord(buf) |
| if err != nil { |
| t.Fatal(err) |
| } |
| if !bytes.Equal(got, want) { |
| t.Errorf("got %v, want %v", got, want) |
| } |
| } |
| |
| func TestHeaderIO(t *testing.T) { |
| buf := &bytes.Buffer{} |
| want := []byte{1, 2, 3} |
| if err := writeHeader(buf, want); err != nil { |
| t.Fatal(err) |
| } |
| got, err := readHeader(buf) |
| if err != nil { |
| t.Fatal(err) |
| } |
| if !testutil.Equal(got, want) { |
| t.Errorf("got %v, want %v", got, want) |
| } |
| |
| // readHeader errors |
| for _, contents := range []string{"", "badmagic", "gRPCReplay"} { |
| if _, err := readHeader(bytes.NewBufferString(contents)); err == nil { |
| t.Errorf("%q: got nil, want error", contents) |
| } |
| } |
| } |
| |
| func TestEntryIO(t *testing.T) { |
| for i, want := range []*entry{ |
| { |
| kind: rpb.Entry_REQUEST, |
| method: "method", |
| msg: message{msg: &rpb.Entry{}}, |
| refIndex: 7, |
| }, |
| { |
| kind: rpb.Entry_RESPONSE, |
| method: "method", |
| msg: message{err: status.Error(codes.NotFound, "not found")}, |
| refIndex: 8, |
| }, |
| { |
| kind: rpb.Entry_RECV, |
| method: "method", |
| msg: message{err: io.EOF}, |
| refIndex: 3, |
| }, |
| } { |
| buf := &bytes.Buffer{} |
| if err := writeEntry(buf, want); err != nil { |
| t.Fatal(err) |
| } |
| got, err := readEntry(buf) |
| if err != nil { |
| t.Fatal(err) |
| } |
| if !got.equal(want) { |
| t.Errorf("#%d: got %v, want %v", i, got, want) |
| } |
| } |
| } |
| |
| var initialState = []byte{1, 2, 3} |
| |
| func TestRecord(t *testing.T) { |
| srv := newIntStoreServer() |
| defer srv.stop() |
| buf := record(t, srv) |
| |
| gotIstate, err := readHeader(buf) |
| if err != nil { |
| t.Fatal(err) |
| } |
| if !testutil.Equal(gotIstate, initialState) { |
| t.Fatalf("got %v, want %v", gotIstate, initialState) |
| } |
| item := &ipb.Item{Name: "a", Value: 1} |
| wantEntries := []*entry{ |
| // Set |
| { |
| kind: rpb.Entry_REQUEST, |
| method: "/intstore.IntStore/Set", |
| msg: message{msg: item}, |
| }, |
| { |
| kind: rpb.Entry_RESPONSE, |
| msg: message{msg: &ipb.SetResponse{PrevValue: 0}}, |
| refIndex: 1, |
| }, |
| // Get |
| { |
| kind: rpb.Entry_REQUEST, |
| method: "/intstore.IntStore/Get", |
| msg: message{msg: &ipb.GetRequest{Name: "a"}}, |
| }, |
| { |
| kind: rpb.Entry_RESPONSE, |
| msg: message{msg: item}, |
| refIndex: 3, |
| }, |
| { |
| kind: rpb.Entry_REQUEST, |
| method: "/intstore.IntStore/Get", |
| msg: message{msg: &ipb.GetRequest{Name: "x"}}, |
| }, |
| { |
| kind: rpb.Entry_RESPONSE, |
| msg: message{err: status.Error(codes.NotFound, `"x"`)}, |
| refIndex: 5, |
| }, |
| // ListItems |
| { // entry #7 |
| kind: rpb.Entry_CREATE_STREAM, |
| method: "/intstore.IntStore/ListItems", |
| }, |
| { |
| kind: rpb.Entry_SEND, |
| msg: message{msg: &ipb.ListItemsRequest{}}, |
| refIndex: 7, |
| }, |
| { |
| kind: rpb.Entry_RECV, |
| msg: message{msg: item}, |
| refIndex: 7, |
| }, |
| { |
| kind: rpb.Entry_RECV, |
| msg: message{err: io.EOF}, |
| refIndex: 7, |
| }, |
| // SetStream |
| { // entry #11 |
| kind: rpb.Entry_CREATE_STREAM, |
| method: "/intstore.IntStore/SetStream", |
| }, |
| { |
| kind: rpb.Entry_SEND, |
| msg: message{msg: &ipb.Item{Name: "b", Value: 2}}, |
| refIndex: 11, |
| }, |
| { |
| kind: rpb.Entry_SEND, |
| msg: message{msg: &ipb.Item{Name: "c", Value: 3}}, |
| refIndex: 11, |
| }, |
| { |
| kind: rpb.Entry_RECV, |
| msg: message{msg: &ipb.Summary{Count: 2}}, |
| refIndex: 11, |
| }, |
| |
| // StreamChat |
| { // entry #15 |
| kind: rpb.Entry_CREATE_STREAM, |
| method: "/intstore.IntStore/StreamChat", |
| }, |
| { |
| kind: rpb.Entry_SEND, |
| msg: message{msg: &ipb.Item{Name: "d", Value: 4}}, |
| refIndex: 15, |
| }, |
| { |
| kind: rpb.Entry_RECV, |
| msg: message{msg: &ipb.Item{Name: "d", Value: 4}}, |
| refIndex: 15, |
| }, |
| { |
| kind: rpb.Entry_SEND, |
| msg: message{msg: &ipb.Item{Name: "e", Value: 5}}, |
| refIndex: 15, |
| }, |
| { |
| kind: rpb.Entry_RECV, |
| msg: message{msg: &ipb.Item{Name: "e", Value: 5}}, |
| refIndex: 15, |
| }, |
| { |
| kind: rpb.Entry_RECV, |
| msg: message{err: io.EOF}, |
| refIndex: 15, |
| }, |
| } |
| for i, w := range wantEntries { |
| g, err := readEntry(buf) |
| if err != nil { |
| t.Fatalf("#%d: %v", i+1, err) |
| } |
| if !g.equal(w) { |
| t.Errorf("#%d:\ngot %+v\nwant %+v", i+1, g, w) |
| } |
| } |
| g, err := readEntry(buf) |
| if err != nil { |
| t.Fatal(err) |
| } |
| if g != nil { |
| t.Errorf("\ngot %+v\nwant nil", g) |
| } |
| } |
| |
| func TestReplay(t *testing.T) { |
| srv := newIntStoreServer() |
| defer srv.stop() |
| |
| buf := record(t, srv) |
| rep, err := NewReplayerReader(buf) |
| if err != nil { |
| t.Fatal(err) |
| } |
| if got, want := rep.Initial(), initialState; !testutil.Equal(got, want) { |
| t.Fatalf("got %v, want %v", got, want) |
| } |
| // Replay the test. |
| testService(t, srv.Addr, rep.DialOptions()) |
| } |
| |
| func record(t *testing.T, srv *intStoreServer) *bytes.Buffer { |
| buf := &bytes.Buffer{} |
| rec, err := NewRecorderWriter(buf, initialState) |
| if err != nil { |
| t.Fatal(err) |
| } |
| testService(t, srv.Addr, rec.DialOptions()) |
| if err := rec.Close(); err != nil { |
| t.Fatal(err) |
| } |
| return buf |
| } |
| |
| func testService(t *testing.T, addr string, opts []grpc.DialOption) { |
| conn, err := grpc.Dial(addr, |
| append([]grpc.DialOption{grpc.WithInsecure()}, opts...)...) |
| if err != nil { |
| t.Fatal(err) |
| } |
| defer conn.Close() |
| client := ipb.NewIntStoreClient(conn) |
| ctx := context.Background() |
| item := &ipb.Item{Name: "a", Value: 1} |
| res, err := client.Set(ctx, item) |
| if err != nil { |
| t.Fatal(err) |
| } |
| if res.PrevValue != 0 { |
| t.Errorf("got %d, want 0", res.PrevValue) |
| } |
| got, err := client.Get(ctx, &ipb.GetRequest{Name: "a"}) |
| if err != nil { |
| t.Fatal(err) |
| } |
| if !proto.Equal(got, item) { |
| t.Errorf("got %v, want %v", got, item) |
| } |
| _, err = client.Get(ctx, &ipb.GetRequest{Name: "x"}) |
| if err == nil { |
| t.Fatal("got nil, want error") |
| } |
| if _, ok := status.FromError(err); !ok { |
| t.Errorf("got error type %T, want a grpc/status.Status", err) |
| } |
| |
| wantItems := []*ipb.Item{item} |
| lic, err := client.ListItems(ctx, &ipb.ListItemsRequest{}) |
| if err != nil { |
| t.Fatal(err) |
| } |
| for i := 0; ; i++ { |
| item, err := lic.Recv() |
| if err == io.EOF { |
| break |
| } |
| if err != nil { |
| t.Fatal(err) |
| } |
| if i >= len(wantItems) || !proto.Equal(item, wantItems[i]) { |
| t.Fatalf("%d: bad item", i) |
| } |
| } |
| |
| ssc, err := client.SetStream(ctx) |
| if err != nil { |
| t.Fatal(err) |
| } |
| |
| must := func(err error) { |
| if err != nil { |
| t.Fatal(err) |
| } |
| } |
| |
| for i, name := range []string{"b", "c"} { |
| must(ssc.Send(&ipb.Item{Name: name, Value: int32(i + 2)})) |
| } |
| summary, err := ssc.CloseAndRecv() |
| if err != nil { |
| t.Fatal(err) |
| } |
| if got, want := summary.Count, int32(2); got != want { |
| t.Fatalf("got %d, want %d", got, want) |
| } |
| |
| chatc, err := client.StreamChat(ctx) |
| if err != nil { |
| t.Fatal(err) |
| } |
| for i, name := range []string{"d", "e"} { |
| item := &ipb.Item{Name: name, Value: int32(i + 4)} |
| must(chatc.Send(item)) |
| got, err := chatc.Recv() |
| if err != nil { |
| t.Fatal(err) |
| } |
| if !proto.Equal(got, item) { |
| t.Errorf("got %v, want %v", got, item) |
| } |
| } |
| must(chatc.CloseSend()) |
| if _, err := chatc.Recv(); err != io.EOF { |
| t.Fatalf("got %v, want EOF", err) |
| } |
| } |