websocket/example_test.go

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// Copyright 2015 The Gorilla WebSocket Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package websocket_test
import (
"log"
"net/http"
"testing"
"github.com/gorilla/websocket"
)
var (
c *websocket.Conn
req *http.Request
)
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// The websocket.IsUnexpectedCloseError function is useful for identifying
// application and protocol errors.
//
// This server application works with a client application running in the
// browser. The client application does not explicitly close the websocket. The
// only expected close message from the client has the code
// websocket.CloseGoingAway. All other close messages are likely the
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// result of an application or protocol error and are logged to aid debugging.
func ExampleIsUnexpectedCloseError() {
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for {
messageType, p, err := c.ReadMessage()
if err != nil {
if websocket.IsUnexpectedCloseError(err, websocket.CloseGoingAway) {
log.Printf("error: %v, user-agent: %v", err, req.Header.Get("User-Agent"))
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}
return
}
processMessage(messageType, p)
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}
}
func processMessage(mt int, p []byte) {}
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// TestX prevents godoc from showing this entire file in the example. Remove
// this function when a second example is added.
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func TestX(t *testing.T) { t.Parallel() }