gin/context_1.17_test.go

95 lines
2.2 KiB
Go

// Copyright 2021 Gin Core Team. All rights reserved.
// Use of this source code is governed by a MIT style
// license that can be found in the LICENSE file.
//go:build go1.17
// +build go1.17
package gin
import (
"bytes"
"mime/multipart"
"net/http"
"net/http/httptest"
"runtime"
"strings"
"testing"
"github.com/stretchr/testify/assert"
)
type interceptedWriter struct {
ResponseWriter
b *bytes.Buffer
}
func (i interceptedWriter) WriteHeader(code int) {
i.Header().Del("X-Test")
i.ResponseWriter.WriteHeader(code)
}
func TestContextFormFileFailed17(t *testing.T) {
if !isGo117OrGo118() {
return
}
buf := new(bytes.Buffer)
mw := multipart.NewWriter(buf)
defer func(mw *multipart.Writer) {
err := mw.Close()
if err != nil {
assert.Error(t, err)
}
}(mw)
c, _ := CreateTestContext(httptest.NewRecorder())
c.Request, _ = http.NewRequest("POST", "/", nil)
c.Request.Header.Set("Content-Type", mw.FormDataContentType())
c.engine.MaxMultipartMemory = 8 << 20
assert.Panics(t, func() {
f, err := c.FormFile("file")
assert.Error(t, err)
assert.Nil(t, f)
})
}
func TestInterceptedHeader(t *testing.T) {
w := httptest.NewRecorder()
c, r := CreateTestContext(w)
r.Use(func(c *Context) {
i := interceptedWriter{
ResponseWriter: c.Writer,
b: bytes.NewBuffer(nil),
}
c.Writer = i
c.Next()
c.Header("X-Test", "overridden")
c.Writer = i.ResponseWriter
})
r.GET("/", func(c *Context) {
c.Header("X-Test", "original")
c.Header("X-Test-2", "present")
c.String(http.StatusOK, "hello world")
})
c.Request = httptest.NewRequest("GET", "/", nil)
r.HandleContext(c)
// Result() has headers frozen when WriteHeaderNow() has been called
// Compared to this time, this is when the response headers will be flushed
// As response is flushed on c.String, the Header cannot be set by the first
// middleware. Assert this
assert.Equal(t, "", w.Result().Header.Get("X-Test"))
assert.Equal(t, "present", w.Result().Header.Get("X-Test-2"))
}
func isGo117OrGo118() bool {
version := strings.Split(runtime.Version()[2:], ".")
if len(version) >= 2 {
x := version[0]
y := version[1]
if x == "1" && (y == "17" || y == "18") {
return true
}
}
return false
}