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read_response_test.go
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read_response_test.go
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package offlinehttp
import (
"fmt"
"io"
"net/http"
"net/http/httptest"
"net/http/httputil"
"testing"
"time"
"github.com/julienschmidt/httprouter"
"github.com/stretchr/testify/require"
)
func TestReadResponseFromString(t *testing.T) {
expectedBody := `<!DOCTYPE html>
<html>
<head>
<title>Firing Range</title>
</head>
<body>
<h1>Version 0.48</h1>
<h1>What is the Firing Range?</h1>
<p>
</body>
</html>`
tests := []struct {
name string
data string
}{
{
name: "response",
data: `HTTP/1.1 200 OK
Age: 0
Cache-Control: public, max-age=600
Content-Type: text/html
Server: Google Frontend
<!DOCTYPE html>
<html>
<head>
<title>Firing Range</title>
</head>
<body>
<h1>Version 0.48</h1>
<h1>What is the Firing Range?</h1>
<p>
</body>
</html>`,
},
{
name: "response-http2-without-minor-version",
data: `HTTP/2 200 OK
Age: 0
Cache-Control: public, max-age=600
Content-Type: text/html
Server: Google Frontend
<!DOCTYPE html>
<html>
<head>
<title>Firing Range</title>
</head>
<body>
<h1>Version 0.48</h1>
<h1>What is the Firing Range?</h1>
<p>
</body>
</html>`,
},
{
name: "response-http2-with-minor-version",
data: `HTTP/2.0 200 OK
Age: 0
Cache-Control: public, max-age=600
Content-Type: text/html
Server: Google Frontend
<!DOCTYPE html>
<html>
<head>
<title>Firing Range</title>
</head>
<body>
<h1>Version 0.48</h1>
<h1>What is the Firing Range?</h1>
<p>
</body>
</html>`,
},
{
name: "request-response",
data: `GET http://public-firing-range.appspot.com/ HTTP/1.1
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9
Accept-Encoding: gzip, deflate
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 11_1_0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.96 Safari/537.36
HTTP/1.1 200 OK
Age: 0
Cache-Control: public, max-age=600
Content-Type: text/html
Server: Google Frontend
<!DOCTYPE html>
<html>
<head>
<title>Firing Range</title>
</head>
<body>
<h1>Version 0.48</h1>
<h1>What is the Firing Range?</h1>
<p>
</body>
</html>`,
},
{
name: "request-response-without-minor-version",
data: `GET http://public-firing-range.appspot.com/ HTTP/1.1
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9
Accept-Encoding: gzip, deflate
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 11_1_0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.96 Safari/537.36
HTTP/2 200 OK
Age: 0
Cache-Control: public, max-age=600
Content-Type: text/html
Server: Google Frontend
<!DOCTYPE html>
<html>
<head>
<title>Firing Range</title>
</head>
<body>
<h1>Version 0.48</h1>
<h1>What is the Firing Range?</h1>
<p>
</body>
</html>`,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
resp, err := readResponseFromString(tt.data)
require.Nil(t, err, "could not read response from string")
respData, err := io.ReadAll(resp.Body)
require.Nil(t, err, "could not read response body")
require.Equal(t, expectedBody, string(respData), "could not get correct parsed body")
require.Equal(t, "Google Frontend", resp.Header.Get("Server"), "could not get correct headers")
})
}
t.Run("test-live-response-with-content-length", func(t *testing.T) {
var ts *httptest.Server
router := httprouter.New()
router.GET("/", func(w http.ResponseWriter, r *http.Request, p httprouter.Params) {
w.Header().Add("Server", "Google Frontend")
fmt.Fprintf(w, "%s", `<!DOCTYPE html>
<html>
<head>
<title>Firing Range</title>
</head>
<body>
<h1>Version 0.48</h1>
<h1>What is the Firing Range?</h1>
<p>
</body>
</html>`)
})
ts = httptest.NewServer(router)
defer ts.Close()
client := &http.Client{
Timeout: 3 * time.Second,
}
data, err := client.Get(ts.URL)
require.Nil(t, err, "could not dial url")
defer data.Body.Close()
b, err := httputil.DumpResponse(data, true)
require.Nil(t, err, "could not dump response")
respData, err := readResponseFromString(string(b))
require.Nil(t, err, "could not read response from string")
_, err = io.ReadAll(respData.Body)
require.Nil(t, err, "could not read response body")
require.Equal(t, "Google Frontend", respData.Header.Get("Server"), "could not get correct headers")
})
}