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0ba427a6f4
* websocket: Should reset respawn parameter when processing next config entry * websocket: add message types: lines, text, binary * websocket: Add unit test * Add websocket sample files
336 lines
9.4 KiB
Go
336 lines
9.4 KiB
Go
// Copyright 2015 Light Code Labs, LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package websocket
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import (
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"bytes"
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"errors"
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"fmt"
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"net/http"
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"net/http/httptest"
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"strings"
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"testing"
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"time"
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"github.com/gorilla/websocket"
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)
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func TestBuildEnv(t *testing.T) {
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req, err := http.NewRequest("GET", "http://localhost", nil)
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if err != nil {
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t.Fatal("Error setting up request:", err)
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}
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req.RemoteAddr = "localhost:50302"
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env, err := buildEnv("/bin/command", req)
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if err != nil {
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t.Fatal("Didn't expect an error:", err)
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}
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if len(env) == 0 {
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t.Fatalf("Expected non-empty environment; got %#v", env)
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}
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}
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func TestWebSocketCatOneLineLines(t *testing.T) {
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r := httptest.NewRequest("GET", "/cat", nil)
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p := &WebSocket{Sockets: []Config{{Path: "/cat", Command: "cat", Type: "lines"}}}
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readCount := 0
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waitClose := make(chan bool)
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inputStr := "123456"
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expectedStr := inputStr
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outputStr := ""
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conn := &dummyWsConn{
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close: func() {},
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readMessage: func() (messageType int, buf []byte, err error) {
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rc := readCount
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readCount++
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if rc == 0 {
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return websocket.TextMessage, []byte(inputStr), nil
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}
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<-waitClose
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return websocket.CloseMessage, nil, errors.New("EOF")
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},
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writeControl: func(messageType int, buf []byte) {},
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writeMessage: func(messageType int, buf []byte) {
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outputStr += string(buf)
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waitClose <- true
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},
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}
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w := &myResponseRecorder{o: httptest.NewRecorder(), u: &dummyWsUpgrader{c: conn}}
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p.ServeHTTP(w, r)
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if outputStr != expectedStr {
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t.Errorf("Received Websocket response %v != %v", outputStr, expectedStr)
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}
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}
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func TestWebSocketCatTwoLinesLines(t *testing.T) {
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r := httptest.NewRequest("GET", "/cat", nil)
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p := &WebSocket{Sockets: []Config{{Path: "/cat", Command: "cat", Type: "lines"}}}
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readCount := 0
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waitClose := make(chan bool)
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inputStr1 := "Hello World!"
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inputStr2 := "This is golang."
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expectedStr := inputStr1 + inputStr2
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outputStr := ""
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outputCount := 0
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conn := &dummyWsConn{
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close: func() {},
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readMessage: func() (messageType int, buf []byte, err error) {
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rc := readCount
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readCount++
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if rc == 0 {
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return websocket.TextMessage, []byte(inputStr1), nil
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}
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if rc == 1 {
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return websocket.TextMessage, []byte(inputStr2), nil
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}
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<-waitClose
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return websocket.CloseMessage, nil, errors.New("EOF")
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},
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writeControl: func(messageType int, buf []byte) {},
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writeMessage: func(messageType int, buf []byte) {
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outputStr += string(buf)
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outputCount++
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if outputCount >= 2 {
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waitClose <- true
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}
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},
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}
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w := &myResponseRecorder{o: httptest.NewRecorder(), u: &dummyWsUpgrader{c: conn}}
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p.ServeHTTP(w, r)
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if outputStr != expectedStr {
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t.Errorf("Received Websocket response %v != %v", outputStr, expectedStr)
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}
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}
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func TestWebSocketCatOneLineText(t *testing.T) {
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r := httptest.NewRequest("GET", "/cat", nil)
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p := &WebSocket{Sockets: []Config{{Path: "/cat", Command: "cat", Type: "text"}}}
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readCount := 0
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waitClose := make(chan bool)
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inputStr := "123456\n"
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expectedStr := inputStr
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outputStr := ""
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conn := &dummyWsConn{
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close: func() {},
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readMessage: func() (messageType int, buf []byte, err error) {
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rc := readCount
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readCount++
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if rc == 0 {
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return websocket.TextMessage, []byte(inputStr), nil
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}
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<-waitClose
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return websocket.CloseMessage, nil, errors.New("EOF")
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},
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writeControl: func(messageType int, buf []byte) {},
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writeMessage: func(messageType int, buf []byte) {
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outputStr += string(buf)
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if strings.Count(outputStr, "\n") >= 1 {
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waitClose <- true
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}
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},
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}
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w := &myResponseRecorder{o: httptest.NewRecorder(), u: &dummyWsUpgrader{c: conn}}
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p.ServeHTTP(w, r)
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if outputStr != expectedStr {
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t.Errorf("Received Websocket response %v != %v", outputStr, expectedStr)
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}
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}
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func TestWebSocketCatTwoLinesText(t *testing.T) {
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r := httptest.NewRequest("GET", "/cat", nil)
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p := &WebSocket{Sockets: []Config{{Path: "/cat", Command: "cat", Type: "text"}}}
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readCount := 0
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waitClose := make(chan bool)
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inputStr1 := "Hello World!\n"
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inputStr2 := "This is golang.\n"
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expectedStr := inputStr1 + inputStr2
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outputStr := ""
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conn := &dummyWsConn{
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close: func() {},
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readMessage: func() (messageType int, buf []byte, err error) {
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rc := readCount
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readCount++
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if rc == 0 {
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return websocket.TextMessage, []byte(inputStr1), nil
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}
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if rc == 1 {
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return websocket.TextMessage, []byte(inputStr2), nil
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}
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<-waitClose
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return websocket.CloseMessage, nil, errors.New("EOF")
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},
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writeControl: func(messageType int, buf []byte) {},
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writeMessage: func(messageType int, buf []byte) {
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outputStr += string(buf)
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if strings.Count(outputStr, "\n") >= 2 {
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waitClose <- true
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}
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},
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}
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w := &myResponseRecorder{o: httptest.NewRecorder(), u: &dummyWsUpgrader{c: conn}}
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p.ServeHTTP(w, r)
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if outputStr != expectedStr {
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t.Errorf("Received Websocket response %v != %v", outputStr, expectedStr)
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}
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}
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func TestWebSocketCatLongLinesText(t *testing.T) {
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r := httptest.NewRequest("GET", "/cat", nil)
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p := &WebSocket{Sockets: []Config{{Path: "/cat", Command: "cat", Type: "text"}}}
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readCount := 0
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waitClose := make(chan bool)
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inputStr1 := "Hello World!\n"
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inputStr2 := ""
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for i := 0; i < 100000; i++ {
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inputStr2 += fmt.Sprintf("No newline %v.", i)
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}
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inputStr2 += "\n"
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inputStr3 := "End of message.\n"
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expectedStr := inputStr1 + inputStr2 + inputStr3
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outputStr := ""
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conn := &dummyWsConn{
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close: func() {},
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readMessage: func() (messageType int, buf []byte, err error) {
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rc := readCount
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readCount++
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if rc == 0 {
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return websocket.TextMessage, []byte(inputStr1), nil
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}
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if rc == 1 {
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return websocket.TextMessage, []byte(inputStr2), nil
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}
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if rc == 2 {
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return websocket.TextMessage, []byte(inputStr3), nil
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}
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<-waitClose
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return websocket.CloseMessage, nil, errors.New("EOF")
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},
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writeControl: func(messageType int, buf []byte) {},
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writeMessage: func(messageType int, buf []byte) {
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outputStr += string(buf)
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if strings.Count(outputStr, "\n") >= 3 {
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waitClose <- true
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}
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},
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}
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w := &myResponseRecorder{o: httptest.NewRecorder(), u: &dummyWsUpgrader{c: conn}}
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p.ServeHTTP(w, r)
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if outputStr != expectedStr {
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t.Errorf("Received Websocket response %v != %v", outputStr, expectedStr)
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}
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}
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func TestWebSocketCatBinary(t *testing.T) {
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r := httptest.NewRequest("GET", "/cat", nil)
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p := &WebSocket{Sockets: []Config{{Path: "/cat", Command: "cat", Type: "binary"}}}
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readCount := 0
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waitClose := make(chan bool)
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inputArr1 := []byte("Hello World!")
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inputArr2 := []byte("End of message.")
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expectedArr := make([]byte, 0)
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expectedArr = append(expectedArr, inputArr1...)
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expectedArr = append(expectedArr, inputArr2...)
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outputArr := make([]byte, 0)
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conn := &dummyWsConn{
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close: func() {},
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readMessage: func() (messageType int, buf []byte, err error) {
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rc := readCount
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readCount++
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if rc == 0 {
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return websocket.BinaryMessage, inputArr1, nil
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}
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if rc == 1 {
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return websocket.BinaryMessage, inputArr2, nil
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}
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<-waitClose
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return websocket.CloseMessage, nil, errors.New("EOF")
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},
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writeControl: func(messageType int, buf []byte) {},
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writeMessage: func(messageType int, buf []byte) {
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outputArr = append(outputArr, buf...)
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if len(outputArr) >= len(expectedArr) {
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waitClose <- true
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}
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},
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}
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w := &myResponseRecorder{o: httptest.NewRecorder(), u: &dummyWsUpgrader{c: conn}}
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p.ServeHTTP(w, r)
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if !bytes.Equal(outputArr, expectedArr) {
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t.Errorf("Received Websocket response %v != %v", outputArr, expectedArr)
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}
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}
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type myResponseRecorder struct {
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o *httptest.ResponseRecorder
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u *dummyWsUpgrader
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}
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func (t *myResponseRecorder) Header() http.Header {
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return t.o.Header()
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}
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func (t *myResponseRecorder) Write(buf []byte) (int, error) {
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return t.o.Write(buf)
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}
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func (t *myResponseRecorder) WriteHeader(code int) {
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t.o.WriteHeader(code)
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}
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func (t *myResponseRecorder) Result() *http.Response {
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return t.o.Result()
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}
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func (t *myResponseRecorder) GetUpgrader() wsUpgrader {
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return t.u
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}
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type dummyWsUpgrader struct {
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c *dummyWsConn
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}
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func (t *dummyWsUpgrader) Upgrade(w http.ResponseWriter, r *http.Request, responseHeader http.Header) (wsConn, error) {
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return t.c, nil
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}
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type dummyWsConn struct {
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close func()
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readMessage func() (messageType int, buf []byte, err error)
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writeControl func(messageType int, buf []byte)
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writeMessage func(messageType int, buf []byte)
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}
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func (c *dummyWsConn) Close() error {
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c.close()
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return nil
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}
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func (c *dummyWsConn) ReadMessage() (messageType int, p []byte, err error) {
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return c.readMessage()
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}
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func (c *dummyWsConn) SetPongHandler(h func(appData string) error) {
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}
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func (c *dummyWsConn) SetReadDeadline(t time.Time) error {
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return nil
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}
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func (c *dummyWsConn) SetReadLimit(limit int64) {
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}
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func (c *dummyWsConn) SetWriteDeadline(t time.Time) error {
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return nil
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}
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func (c *dummyWsConn) WriteControl(messageType int, data []byte, deadline time.Time) error {
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c.writeControl(messageType, data)
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return nil
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}
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func (c *dummyWsConn) WriteMessage(messageType int, data []byte) error {
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c.writeMessage(messageType, data)
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return nil
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}
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