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package httptransport
import (
"io"
"net/http"
"net/http/httptest"
"strconv"
"testing"
"time"
"github.com/prometheus/client_golang/prometheus/testutil"
"github.com/stretchr/testify/require"
)
func TestReconfigureMeteredRoundTripper(t *testing.T) {
histVec, counterVec := newTestMetrics(t)
transport := NewTransport()
transport.RegisterProtocol("file", http.NewFileTransport(http.Dir(".")))
mrt := NewMeteredRoundTripper(transport, t.Name(), nil, histVec, counterVec, time.Millisecond)
r := httptest.NewRequest("GET", "file:///testdata/file.html", nil)
res, err := mrt.RoundTrip(r)
require.NoError(t, err)
defer res.Body.Close()
require.Equal(t, http.StatusOK, res.StatusCode)
body, err := io.ReadAll(res.Body)
require.NoError(t, err)
require.Equal(t, "httptransport/testdata/file.html\n", string(body))
// make sure counter still works
statusCode := strconv.Itoa(res.StatusCode)
counterCount := testutil.ToFloat64(counterVec.WithLabelValues(statusCode))
require.Equal(t, float64(1), counterCount, statusCode)
}
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