Run TestContextFormFileFailed17 test if current go version is go1.17 or go1.18

context_1.17_test.go

@@ -9,8 +9,11 @@ package gin
 
 import (
 	"bytes"
+	"mime/multipart"
 	"net/http"
 	"net/http/httptest"
+	"runtime"
+	"strings"
 	"testing"
 
 	"github.com/stretchr/testify/assert"
@@ -26,6 +29,24 @@ func (i interceptedWriter) WriteHeader(code int) {
 	i.ResponseWriter.WriteHeader(code)
 }
 
+func TestContextFormFileFailed17(t *testing.T) {
+	if !isGo117OrGo118() {
+		return
+	}
+	buf := new(bytes.Buffer)
+	mw := multipart.NewWriter(buf)
+	mw.Close()
+	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)
@@ -54,3 +75,15 @@ func TestInterceptedHeader(t *testing.T) {
 	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
+}