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// 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 v2http
import (
"context"
"errors"
"net/http"
"net/http/httptest"
"sort"
"testing"
"go.etcd.io/etcd/api/v3/etcdserverpb"
"go.etcd.io/etcd/client/pkg/v3/types"
"go.etcd.io/etcd/raft/v3/raftpb"
"go.etcd.io/etcd/server/v3/etcdserver"
"go.etcd.io/etcd/server/v3/etcdserver/api/membership"
"go.etcd.io/etcd/server/v3/etcdserver/api/v2error"
"github.com/coreos/go-semver/semver"
"go.uber.org/zap"
)
type fakeCluster struct {
id uint64
clientURLs []string
members map[uint64]*membership.Member
}
func (c *fakeCluster) ID() types.ID { return types.ID(c.id) }
func (c *fakeCluster) ClientURLs() []string { return c.clientURLs }
func (c *fakeCluster) Members() []*membership.Member {
var ms membership.MembersByID
for _, m := range c.members {
ms = append(ms, m)
}
sort.Sort(ms)
return []*membership.Member(ms)
}
func (c *fakeCluster) Member(id types.ID) *membership.Member { return c.members[uint64(id)] }
func (c *fakeCluster) Version() *semver.Version { return nil }
// errServer implements the etcd.Server interface for testing.
// It returns the given error from any Do/Process/AddMember/RemoveMember calls.
type errServer struct {
err error
fakeServer
}
func (fs *errServer) Do(ctx context.Context, r etcdserverpb.Request) (etcdserver.Response, error) {
return etcdserver.Response{}, fs.err
}
func (fs *errServer) Process(ctx context.Context, m raftpb.Message) error {
return fs.err
}
func (fs *errServer) AddMember(ctx context.Context, m membership.Member) ([]*membership.Member, error) {
return nil, fs.err
}
func (fs *errServer) RemoveMember(ctx context.Context, id uint64) ([]*membership.Member, error) {
return nil, fs.err
}
func (fs *errServer) UpdateMember(ctx context.Context, m membership.Member) ([]*membership.Member, error) {
return nil, fs.err
}
func (fs *errServer) PromoteMember(ctx context.Context, id uint64) ([]*membership.Member, error) {
return nil, fs.err
}
func TestWriteError(t *testing.T) {
// nil error should not panic
rec := httptest.NewRecorder()
r := new(http.Request)
writeError(zap.NewExample(), rec, r, nil)
h := rec.Header()
if len(h) > 0 {
t.Fatalf("unexpected non-empty headers: %#v", h)
}
b := rec.Body.String()
if len(b) > 0 {
t.Fatalf("unexpected non-empty body: %q", b)
}
tests := []struct {
err error
wcode int
wi string
}{
{
v2error.NewError(v2error.EcodeKeyNotFound, "/foo/bar", 123),
http.StatusNotFound,
"123",
},
{
v2error.NewError(v2error.EcodeTestFailed, "/foo/bar", 456),
http.StatusPreconditionFailed,
"456",
},
{
err: errors.New("something went wrong"),
wcode: http.StatusInternalServerError,
},
}
for i, tt := range tests {
rw := httptest.NewRecorder()
writeError(zap.NewExample(), rw, r, tt.err)
if code := rw.Code; code != tt.wcode {
t.Errorf("#%d: code=%d, want %d", i, code, tt.wcode)
}
if idx := rw.Header().Get("X-Etcd-Index"); idx != tt.wi {
t.Errorf("#%d: X-Etcd-Index=%q, want %q", i, idx, tt.wi)
}
}
}
func TestAllowMethod(t *testing.T) {
tests := []struct {
m string
ms []string
w bool
wh string
}{
// Accepted methods
{
m: "GET",
ms: []string{"GET", "POST", "PUT"},
w: true,
},
{
m: "POST",
ms: []string{"POST"},
w: true,
},
// Made-up methods no good
{
m: "FAKE",
ms: []string{"GET", "POST", "PUT"},
w: false,
wh: "GET,POST,PUT",
},
// Empty methods no good
{
m: "",
ms: []string{"GET", "POST"},
w: false,
wh: "GET,POST",
},
// Empty accepted methods no good
{
m: "GET",
ms: []string{""},
w: false,
wh: "",
},
// No methods accepted
{
m: "GET",
ms: []string{},
w: false,
wh: "",
},
}
for i, tt := range tests {
rw := httptest.NewRecorder()
g := allowMethod(rw, tt.m, tt.ms...)
if g != tt.w {
t.Errorf("#%d: got allowMethod()=%t, want %t", i, g, tt.w)
}
if !tt.w {
if rw.Code != http.StatusMethodNotAllowed {
t.Errorf("#%d: code=%d, want %d", i, rw.Code, http.StatusMethodNotAllowed)
}
gh := rw.Header().Get("Allow")
if gh != tt.wh {
t.Errorf("#%d: Allow header=%q, want %q", i, gh, tt.wh)
}
}
}
}
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