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// SPDX-License-Identifier: MIT
// SPDX-FileCopyrightText: © 2015 LabStack LLC and Echo contributors
package middleware
import (
"errors"
"io"
"net/http"
"net/http/httptest"
"strings"
"testing"
"github.com/labstack/echo/v4"
"github.com/stretchr/testify/assert"
)
func TestBodyDump(t *testing.T) {
e := echo.New()
hw := "Hello, World!"
req := httptest.NewRequest(http.MethodPost, "/", strings.NewReader(hw))
rec := httptest.NewRecorder()
c := e.NewContext(req, rec)
h := func(c echo.Context) error {
body, err := io.ReadAll(c.Request().Body)
if err != nil {
return err
}
return c.String(http.StatusOK, string(body))
}
requestBody := ""
responseBody := ""
mw := BodyDump(func(c echo.Context, reqBody, resBody []byte) {
requestBody = string(reqBody)
responseBody = string(resBody)
})
if assert.NoError(t, mw(h)(c)) {
assert.Equal(t, requestBody, hw)
assert.Equal(t, responseBody, hw)
assert.Equal(t, http.StatusOK, rec.Code)
assert.Equal(t, hw, rec.Body.String())
}
// Must set default skipper
BodyDumpWithConfig(BodyDumpConfig{
Skipper: nil,
Handler: func(c echo.Context, reqBody, resBody []byte) {
requestBody = string(reqBody)
responseBody = string(resBody)
},
})
}
func TestBodyDumpFails(t *testing.T) {
e := echo.New()
hw := "Hello, World!"
req := httptest.NewRequest(http.MethodPost, "/", strings.NewReader(hw))
rec := httptest.NewRecorder()
c := e.NewContext(req, rec)
h := func(c echo.Context) error {
return errors.New("some error")
}
mw := BodyDump(func(c echo.Context, reqBody, resBody []byte) {})
if !assert.Error(t, mw(h)(c)) {
t.FailNow()
}
assert.Panics(t, func() {
mw = BodyDumpWithConfig(BodyDumpConfig{
Skipper: nil,
Handler: nil,
})
})
assert.NotPanics(t, func() {
mw = BodyDumpWithConfig(BodyDumpConfig{
Skipper: func(c echo.Context) bool {
return true
},
Handler: func(c echo.Context, reqBody, resBody []byte) {
},
})
if !assert.Error(t, mw(h)(c)) {
t.FailNow()
}
})
}
func TestBodyDumpResponseWriter_CanNotFlush(t *testing.T) {
bdrw := bodyDumpResponseWriter{
ResponseWriter: new(testResponseWriterNoFlushHijack), // this RW does not support flush
}
assert.PanicsWithError(t, "response writer flushing is not supported", func() {
bdrw.Flush()
})
}
func TestBodyDumpResponseWriter_CanFlush(t *testing.T) {
trwu := testResponseWriterUnwrapperHijack{testResponseWriterUnwrapper: testResponseWriterUnwrapper{rw: httptest.NewRecorder()}}
bdrw := bodyDumpResponseWriter{
ResponseWriter: &trwu,
}
bdrw.Flush()
assert.Equal(t, 1, trwu.unwrapCalled)
}
func TestBodyDumpResponseWriter_CanUnwrap(t *testing.T) {
trwu := &testResponseWriterUnwrapper{rw: httptest.NewRecorder()}
bdrw := bodyDumpResponseWriter{
ResponseWriter: trwu,
}
result := bdrw.Unwrap()
assert.Equal(t, trwu, result)
}
func TestBodyDumpResponseWriter_CanHijack(t *testing.T) {
trwu := testResponseWriterUnwrapperHijack{testResponseWriterUnwrapper: testResponseWriterUnwrapper{rw: httptest.NewRecorder()}}
bdrw := bodyDumpResponseWriter{
ResponseWriter: &trwu, // this RW supports hijacking through unwrapping
}
_, _, err := bdrw.Hijack()
assert.EqualError(t, err, "can hijack")
}
func TestBodyDumpResponseWriter_CanNotHijack(t *testing.T) {
trwu := testResponseWriterUnwrapper{rw: httptest.NewRecorder()}
bdrw := bodyDumpResponseWriter{
ResponseWriter: &trwu, // this RW supports hijacking through unwrapping
}
_, _, err := bdrw.Hijack()
assert.EqualError(t, err, "feature not supported")
}
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