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// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Tests a Go CGI program running under a Go CGI host process.
// Further, the two programs are the same binary, just checking
// their environment to figure out what mode to run in.
package cgi
import (
"fmt"
"net/http"
"os"
"testing"
)
// This test is a CGI host (testing host.go) that runs its own binary
// as a child process testing the other half of CGI (child.go).
func TestHostingOurselves(t *testing.T) {
h := &Handler{
Path: os.Args[0],
Root: "/test.go",
Args: []string{"-test.run=TestBeChildCGIProcess"},
}
expectedMap := map[string]string{
"test": "Hello CGI-in-CGI",
"param-a": "b",
"param-foo": "bar",
"env-GATEWAY_INTERFACE": "CGI/1.1",
"env-HTTP_HOST": "example.com",
"env-PATH_INFO": "",
"env-QUERY_STRING": "foo=bar&a=b",
"env-REMOTE_ADDR": "1.2.3.4",
"env-REMOTE_HOST": "1.2.3.4",
"env-REQUEST_METHOD": "GET",
"env-REQUEST_URI": "/test.go?foo=bar&a=b",
"env-SCRIPT_FILENAME": os.Args[0],
"env-SCRIPT_NAME": "/test.go",
"env-SERVER_NAME": "example.com",
"env-SERVER_PORT": "80",
"env-SERVER_SOFTWARE": "go",
}
replay := runCgiTest(t, h, "GET /test.go?foo=bar&a=b HTTP/1.0\nHost: example.com\n\n", expectedMap)
if expected, got := "text/html; charset=utf-8", replay.Header().Get("Content-Type"); got != expected {
t.Errorf("got a Content-Type of %q; expected %q", got, expected)
}
if expected, got := "X-Test-Value", replay.Header().Get("X-Test-Header"); got != expected {
t.Errorf("got a X-Test-Header of %q; expected %q", got, expected)
}
}
// Test that a child handler only writing headers works.
func TestChildOnlyHeaders(t *testing.T) {
h := &Handler{
Path: os.Args[0],
Root: "/test.go",
Args: []string{"-test.run=TestBeChildCGIProcess"},
}
expectedMap := map[string]string{
"_body": "",
}
replay := runCgiTest(t, h, "GET /test.go?no-body=1 HTTP/1.0\nHost: example.com\n\n", expectedMap)
if expected, got := "X-Test-Value", replay.Header().Get("X-Test-Header"); got != expected {
t.Errorf("got a X-Test-Header of %q; expected %q", got, expected)
}
}
// Note: not actually a test.
func TestBeChildCGIProcess(t *testing.T) {
if os.Getenv("REQUEST_METHOD") == "" {
// Not in a CGI environment; skipping test.
return
}
Serve(http.HandlerFunc(func(rw http.ResponseWriter, req *http.Request) {
rw.Header().Set("X-Test-Header", "X-Test-Value")
req.ParseForm()
if req.FormValue("no-body") == "1" {
return
}
fmt.Fprintf(rw, "test=Hello CGI-in-CGI\n")
for k, vv := range req.Form {
for _, v := range vv {
fmt.Fprintf(rw, "param-%s=%s\n", k, v)
}
}
for _, kv := range os.Environ() {
fmt.Fprintf(rw, "env-%s\n", kv)
}
}))
os.Exit(0)
}
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