// Copyright 2015 CoreOS, Inc.
//
// 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 client
import (
"errors"
"fmt"
"io/ioutil"
"net/http"
"net/url"
"reflect"
"testing"
)
func TestV2KeysURLHelper(t *testing.T) {
tests := []struct {
endpoint url.URL
prefix string
key string
want url.URL
}{
// key is empty, no problem
{
endpoint: url.URL{Scheme: "http", Host: "example.com", Path: "/v2/keys"},
prefix: "",
key: "",
want: url.URL{Scheme: "http", Host: "example.com", Path: "/v2/keys"},
},
// key is joined to path
{
endpoint: url.URL{Scheme: "http", Host: "example.com", Path: "/v2/keys"},
prefix: "",
key: "/foo/bar",
want: url.URL{Scheme: "http", Host: "example.com", Path: "/v2/keys/foo/bar"},
},
// key is joined to path when path is empty
{
endpoint: url.URL{Scheme: "http", Host: "example.com", Path: ""},
prefix: "",
key: "/foo/bar",
want: url.URL{Scheme: "http", Host: "example.com", Path: "/foo/bar"},
},
// Host field carries through with port
{
endpoint: url.URL{Scheme: "http", Host: "example.com:8080", Path: "/v2/keys"},
prefix: "",
key: "",
want: url.URL{Scheme: "http", Host: "example.com:8080", Path: "/v2/keys"},
},
// Scheme carries through
{
endpoint: url.URL{Scheme: "https", Host: "example.com", Path: "/v2/keys"},
prefix: "",
key: "",
want: url.URL{Scheme: "https", Host: "example.com", Path: "/v2/keys"},
},
// Prefix is applied
{
endpoint: url.URL{Scheme: "https", Host: "example.com", Path: "/foo"},
prefix: "/bar",
key: "/baz",
want: url.URL{Scheme: "https", Host: "example.com", Path: "/foo/bar/baz"},
},
}
for i, tt := range tests {
got := v2KeysURL(tt.endpoint, tt.prefix, tt.key)
if tt.want != *got {
t.Errorf("#%d: want=%#v, got=%#v", i, tt.want, *got)
}
}
}
func TestGetAction(t *testing.T) {
ep := url.URL{Scheme: "http", Host: "example.com/v2/keys"}
baseWantURL := &url.URL{
Scheme: "http",
Host: "example.com",
Path: "/v2/keys/foo/bar",
}
wantHeader := http.Header{}
tests := []struct {
recursive bool
wantQuery string
}{
{
recursive: false,
wantQuery: "recursive=false",
},
{
recursive: true,
wantQuery: "recursive=true",
},
}
for i, tt := range tests {
f := getAction{
Key: "/foo/bar",
Recursive: tt.recursive,
}
got := *f.HTTPRequest(ep)
wantURL := baseWantURL
wantURL.RawQuery = tt.wantQuery
err := assertResponse(got, wantURL, wantHeader, nil)
if err != nil {
t.Errorf("#%d: %v", i, err)
}
}
}
func TestWaitAction(t *testing.T) {
ep := url.URL{Scheme: "http", Host: "example.com/v2/keys"}
baseWantURL := &url.URL{
Scheme: "http",
Host: "example.com",
Path: "/v2/keys/foo/bar",
}
wantHeader := http.Header{}
tests := []struct {
waitIndex uint64
recursive bool
wantQuery string
}{
{
recursive: false,
waitIndex: uint64(0),
wantQuery: "recursive=false&wait=true&waitIndex=0",
},
{
recursive: false,
waitIndex: uint64(12),
wantQuery: "recursive=false&wait=true&waitIndex=12",
},
{
recursive: true,
waitIndex: uint64(12),
wantQuery: "recursive=true&wait=true&waitIndex=12",
},
}
for i, tt := range tests {
f := waitAction{
Key: "/foo/bar",
WaitIndex: tt.waitIndex,
Recursive: tt.recursive,
}
got := *f.HTTPRequest(ep)
wantURL := baseWantURL
wantURL.RawQuery = tt.wantQuery
err := assertResponse(got, wantURL, wantHeader, nil)
if err != nil {
t.Errorf("#%d: %v", i, err)
}
}
}
func TestCreateAction(t *testing.T) {
ep := url.URL{Scheme: "http", Host: "example.com/v2/keys"}
wantURL := &url.URL{
Scheme: "http",
Host: "example.com",
Path: "/v2/keys/foo/bar",
RawQuery: "prevExist=false",
}
wantHeader := http.Header(map[string][]string{
"Content-Type": []string{"application/x-www-form-urlencoded"},
})
ttl12 := uint64(12)
tests := []struct {
value string
ttl *uint64
wantBody string
}{
{
value: "baz",
wantBody: "value=baz",
},
{
value: "baz",
ttl: &ttl12,
wantBody: "ttl=12&value=baz",
},
}
for i, tt := range tests {
f := createAction{
Key: "/foo/bar",
Value: tt.value,
TTL: tt.ttl,
}
got := *f.HTTPRequest(ep)
err := assertResponse(got, wantURL, wantHeader, []byte(tt.wantBody))
if err != nil {
t.Errorf("#%d: %v", i, err)
}
}
}
func assertResponse(got http.Request, wantURL *url.URL, wantHeader http.Header, wantBody []byte) error {
if !reflect.DeepEqual(wantURL, got.URL) {
return fmt.Errorf("want.URL=%#v got.URL=%#v", wantURL, got.URL)
}
if !reflect.DeepEqual(wantHeader, got.Header) {
return fmt.Errorf("want.Header=%#v got.Header=%#v", wantHeader, got.Header)
}
if got.Body == nil {
if wantBody != nil {
return fmt.Errorf("want.Body=%v got.Body=%v", wantBody, got.Body)
}
} else {
if wantBody == nil {
return fmt.Errorf("want.Body=%v got.Body=%s", wantBody, got.Body)
} else {
gotBytes, err := ioutil.ReadAll(got.Body)
if err != nil {
return err
}
if !reflect.DeepEqual(wantBody, gotBytes) {
return fmt.Errorf("want.Body=%s got.Body=%s", wantBody, gotBytes)
}
}
}
return nil
}
func TestUnmarshalSuccessfulResponse(t *testing.T) {
tests := []struct {
indexHeader string
body string
res *Response
expectError bool
}{
// Neither PrevNode or Node
{
"1",
`{"action":"delete"}`,
&Response{Action: "delete", Index: 1},
false,
},
// PrevNode
{
"15",
`{"action":"delete", "prevNode": {"key": "/foo", "value": "bar", "modifiedIndex": 12, "createdIndex": 10}}`,
&Response{Action: "delete", Index: 15, PrevNode: &Node{Key: "/foo", Value: "bar", ModifiedIndex: 12, CreatedIndex: 10}},
false,
},
// Node
{
"15",
`{"action":"get", "node": {"key": "/foo", "value": "bar", "modifiedIndex": 12, "createdIndex": 10}}`,
&Response{Action: "get", Index: 15, Node: &Node{Key: "/foo", Value: "bar", ModifiedIndex: 12, CreatedIndex: 10}},
false,
},
// PrevNode and Node
{
"15",
`{"action":"update", "prevNode": {"key": "/foo", "value": "baz", "modifiedIndex": 10, "createdIndex": 10}, "node": {"key": "/foo", "value": "bar", "modifiedIndex": 12, "createdIndex": 10}}`,
&Response{Action: "update", Index: 15, PrevNode: &Node{Key: "/foo", Value: "baz", ModifiedIndex: 10, CreatedIndex: 10}, Node: &Node{Key: "/foo", Value: "bar", ModifiedIndex: 12, CreatedIndex: 10}},
false,
},
// Garbage in body
{
"",
`garbage`,
nil,
true,
},
}
for i, tt := range tests {
h := make(http.Header)
h.Add("X-Etcd-Index", tt.indexHeader)
res, err := unmarshalSuccessfulResponse(h, []byte(tt.body))
if tt.expectError != (err != nil) {
t.Errorf("#%d: expectError=%t, err=%v", i, tt.expectError, err)
}
if (res == nil) != (tt.res == nil) {
t.Errorf("#%d: received res==%v, but expected res==%v", i, res, tt.res)
continue
} else if tt.res == nil {
// expected and successfully got nil response
continue
}
if res.Action != tt.res.Action {
t.Errorf("#%d: Action=%s, expected %s", i, res.Action, tt.res.Action)
}
if res.Index != tt.res.Index {
t.Errorf("#%d: Index=%d, expected %d", i, res.Index, tt.res.Index)
}
if !reflect.DeepEqual(res.Node, tt.res.Node) {
t.Errorf("#%d: Node=%v, expected %v", i, res.Node, tt.res.Node)
}
}
}
func TestUnmarshalErrorResponse(t *testing.T) {
unrecognized := errors.New("test fixture")
tests := []struct {
code int
want error
}{
{http.StatusBadRequest, unrecognized},
{http.StatusUnauthorized, unrecognized},
{http.StatusPaymentRequired, unrecognized},
{http.StatusForbidden, unrecognized},
{http.StatusNotFound, ErrKeyNoExist},
{http.StatusMethodNotAllowed, unrecognized},
{http.StatusNotAcceptable, unrecognized},
{http.StatusProxyAuthRequired, unrecognized},
{http.StatusRequestTimeout, unrecognized},
{http.StatusConflict, unrecognized},
{http.StatusGone, unrecognized},
{http.StatusLengthRequired, unrecognized},
{http.StatusPreconditionFailed, ErrKeyExists},
{http.StatusRequestEntityTooLarge, unrecognized},
{http.StatusRequestURITooLong, unrecognized},
{http.StatusUnsupportedMediaType, unrecognized},
{http.StatusRequestedRangeNotSatisfiable, unrecognized},
{http.StatusExpectationFailed, unrecognized},
{http.StatusTeapot, unrecognized},
{http.StatusInternalServerError, ErrNoLeader},
{http.StatusNotImplemented, unrecognized},
{http.StatusBadGateway, unrecognized},
{http.StatusServiceUnavailable, unrecognized},
{http.StatusGatewayTimeout, ErrTimeout},
{http.StatusHTTPVersionNotSupported, unrecognized},
}
for i, tt := range tests {
want := tt.want
if reflect.DeepEqual(unrecognized, want) {
want = fmt.Errorf("unrecognized HTTP status code %d", tt.code)
}
got := unmarshalErrorResponse(tt.code)
if !reflect.DeepEqual(want, got) {
t.Errorf("#%d: want=%v, got=%v", i, want, got)
}
}
}