http_test.go
// Copyright 2015 The etcd Authors
//
// 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 rafthttp
import (
"bytes"
"errors"
"fmt"
"io"
"net/http"
"net/http/httptest"
"net/url"
"strings"
"testing"
"time"
"github.com/coreos/etcd/pkg/pbutil"
"github.com/coreos/etcd/pkg/types"
"github.com/coreos/etcd/raft/raftpb"
"github.com/coreos/etcd/snap"
"github.com/coreos/etcd/version"
)
func TestServeRaftPrefix(t *testing.T) {
testCases := []struct {
method string
body io.Reader
p Raft
clusterID string
wcode int
}{
{
// bad method
"GET",
bytes.NewReader(
pbutil.MustMarshal(&raftpb.Message{}),
),
&fakeRaft{},
"0",
http.StatusMethodNotAllowed,
},
{
// bad method
"PUT",
bytes.NewReader(
pbutil.MustMarshal(&raftpb.Message{}),
),
&fakeRaft{},
"0",
http.StatusMethodNotAllowed,
},
{
// bad method
"DELETE",
bytes.NewReader(
pbutil.MustMarshal(&raftpb.Message{}),
),
&fakeRaft{},
"0",
http.StatusMethodNotAllowed,
},
{
// bad request body
"POST",
&errReader{},
&fakeRaft{},
"0",
http.StatusBadRequest,
},
{
// bad request protobuf
"POST",
strings.NewReader("malformed garbage"),
&fakeRaft{},
"0",
http.StatusBadRequest,
},
{
// good request, wrong cluster ID
"POST",
bytes.NewReader(
pbutil.MustMarshal(&raftpb.Message{}),
),
&fakeRaft{},
"1",
http.StatusPreconditionFailed,
},
{
// good request, Processor failure
"POST",
bytes.NewReader(
pbutil.MustMarshal(&raftpb.Message{}),
),
&fakeRaft{
err: &resWriterToError{code: http.StatusForbidden},
},
"0",
http.StatusForbidden,
},
{
// good request, Processor failure
"POST",
bytes.NewReader(
pbutil.MustMarshal(&raftpb.Message{}),
),
&fakeRaft{
err: &resWriterToError{code: http.StatusInternalServerError},
},
"0",
http.StatusInternalServerError,
},
{
// good request, Processor failure
"POST",
bytes.NewReader(
pbutil.MustMarshal(&raftpb.Message{}),
),
&fakeRaft{err: errors.New("blah")},
"0",
http.StatusInternalServerError,
},
{
// good request
"POST",
bytes.NewReader(
pbutil.MustMarshal(&raftpb.Message{}),
),
&fakeRaft{},
"0",
http.StatusNoContent,
},
}
for i, tt := range testCases {
req, err := http.NewRequest(tt.method, "foo", tt.body)
if err != nil {
t.Fatalf("#%d: could not create request: %#v", i, err)
}
req.Header.Set("X-Etcd-Cluster-ID", tt.clusterID)
req.Header.Set("X-Server-Version", version.Version)
rw := httptest.NewRecorder()
h := newPipelineHandler(NewNopTransporter(), tt.p, types.ID(0))
// goroutine because the handler panics to disconnect on raft error
donec := make(chan struct{})
go func() {
defer func() {
recover()
close(donec)
}()
h.ServeHTTP(rw, req)
}()
<-donec
if rw.Code != tt.wcode {
t.Errorf("#%d: got code=%d, want %d", i, rw.Code, tt.wcode)
}
}
}
func TestServeRaftStreamPrefix(t *testing.T) {
tests := []struct {
path string
wtype streamType
}{
{
RaftStreamPrefix + "/message/1",
streamTypeMessage,
},
{
RaftStreamPrefix + "/msgapp/1",
streamTypeMsgAppV2,
},
}
for i, tt := range tests {
req, err := http.NewRequest("GET", "http://localhost:2380"+tt.path, nil)
if err != nil {
t.Fatalf("#%d: could not create request: %#v", i, err)
}
req.Header.Set("X-Etcd-Cluster-ID", "1")
req.Header.Set("X-Server-Version", version.Version)
req.Header.Set("X-Raft-To", "2")
peer := newFakePeer()
peerGetter := &fakePeerGetter{peers: map[types.ID]Peer{types.ID(1): peer}}
tr := &Transport{}
h := newStreamHandler(tr, peerGetter, &fakeRaft{}, types.ID(2), types.ID(1))
rw := httptest.NewRecorder()
go h.ServeHTTP(rw, req)
var conn *outgoingConn
select {
case conn = <-peer.connc:
case <-time.After(time.Second):
t.Fatalf("#%d: failed to attach outgoingConn", i)
}
if g := rw.Header().Get("X-Server-Version"); g != version.Version {
t.Errorf("#%d: X-Server-Version = %s, want %s", i, g, version.Version)
}
if conn.t != tt.wtype {
t.Errorf("#%d: type = %s, want %s", i, conn.t, tt.wtype)
}
conn.Close()
}
}
func TestServeRaftStreamPrefixBad(t *testing.T) {
removedID := uint64(5)
tests := []struct {
method string
path string
clusterID string
remote string
wcode int
}{
// bad method
{
"PUT",
RaftStreamPrefix + "/message/1",
"1",
"1",
http.StatusMethodNotAllowed,
},
// bad method
{
"POST",
RaftStreamPrefix + "/message/1",
"1",
"1",
http.StatusMethodNotAllowed,
},
// bad method
{
"DELETE",
RaftStreamPrefix + "/message/1",
"1",
"1",
http.StatusMethodNotAllowed,
},
// bad path
{
"GET",
RaftStreamPrefix + "/strange/1",
"1",
"1",
http.StatusNotFound,
},
// bad path
{
"GET",
RaftStreamPrefix + "/strange",
"1",
"1",
http.StatusNotFound,
},
// non-existent peer
{
"GET",
RaftStreamPrefix + "/message/2",
"1",
"1",
http.StatusNotFound,
},
// removed peer
{
"GET",
RaftStreamPrefix + "/message/" + fmt.Sprint(removedID),
"1",
"1",
http.StatusGone,
},
// wrong cluster ID
{
"GET",
RaftStreamPrefix + "/message/1",
"2",
"1",
http.StatusPreconditionFailed,
},
// wrong remote id
{
"GET",
RaftStreamPrefix + "/message/1",
"1",
"2",
http.StatusPreconditionFailed,
},
}
for i, tt := range tests {
req, err := http.NewRequest(tt.method, "http://localhost:2380"+tt.path, nil)
if err != nil {
t.Fatalf("#%d: could not create request: %#v", i, err)
}
req.Header.Set("X-Etcd-Cluster-ID", tt.clusterID)
req.Header.Set("X-Server-Version", version.Version)
req.Header.Set("X-Raft-To", tt.remote)
rw := httptest.NewRecorder()
tr := &Transport{}
peerGetter := &fakePeerGetter{peers: map[types.ID]Peer{types.ID(1): newFakePeer()}}
r := &fakeRaft{removedID: removedID}
h := newStreamHandler(tr, peerGetter, r, types.ID(1), types.ID(1))
h.ServeHTTP(rw, req)
if rw.Code != tt.wcode {
t.Errorf("#%d: code = %d, want %d", i, rw.Code, tt.wcode)
}
}
}
func TestCloseNotifier(t *testing.T) {
c := newCloseNotifier()
select {
case <-c.closeNotify():
t.Fatalf("received unexpected close notification")
default:
}
c.Close()
select {
case <-c.closeNotify():
default:
t.Fatalf("failed to get close notification")
}
}
// errReader implements io.Reader to facilitate a broken request.
type errReader struct{}
func (er *errReader) Read(_ []byte) (int, error) { return 0, errors.New("some error") }
type resWriterToError struct {
code int
}
func (e *resWriterToError) Error() string { return "" }
func (e *resWriterToError) WriteTo(w http.ResponseWriter) { w.WriteHeader(e.code) }
type fakePeerGetter struct {
peers map[types.ID]Peer
}
func (pg *fakePeerGetter) Get(id types.ID) Peer { return pg.peers[id] }
type fakePeer struct {
msgs []raftpb.Message
snapMsgs []snap.Message
peerURLs types.URLs
connc chan *outgoingConn
paused bool
}
func newFakePeer() *fakePeer {
fakeURL, _ := url.Parse("http://localhost")
return &fakePeer{
connc: make(chan *outgoingConn, 1),
peerURLs: types.URLs{*fakeURL},
}
}
func (pr *fakePeer) send(m raftpb.Message) {
if pr.paused {
return
}
pr.msgs = append(pr.msgs, m)
}
func (pr *fakePeer) sendSnap(m snap.Message) {
if pr.paused {
return
}
pr.snapMsgs = append(pr.snapMsgs, m)
}
func (pr *fakePeer) update(urls types.URLs) { pr.peerURLs = urls }
func (pr *fakePeer) attachOutgoingConn(conn *outgoingConn) { pr.connc <- conn }
func (pr *fakePeer) activeSince() time.Time { return time.Time{} }
func (pr *fakePeer) stop() {}
func (pr *fakePeer) Pause() { pr.paused = true }
func (pr *fakePeer) Resume() { pr.paused = false }
