mirror of https://github.com/gin-gonic/gin.git
51 lines
1.2 KiB
Go
51 lines
1.2 KiB
Go
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// +build go1.7
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package gin
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import (
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"bytes"
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"net/http"
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"net/http/httptest"
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"testing"
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"github.com/stretchr/testify/assert"
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)
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type interceptedWriter struct {
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ResponseWriter
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b *bytes.Buffer
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}
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func (i interceptedWriter) WriteHeader(code int) {
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i.Header().Del("X-Test")
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i.ResponseWriter.WriteHeader(code)
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}
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func TestInterceptedHeader(t *testing.T) {
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w := httptest.NewRecorder()
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c, r := CreateTestContext(w)
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r.Use(func(c *Context) {
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i := interceptedWriter{
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ResponseWriter: c.Writer,
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b: bytes.NewBuffer(nil),
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}
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c.Writer = i
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c.Next()
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c.Header("X-Test", "overridden")
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c.Writer = i.ResponseWriter
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})
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r.GET("/", func(c *Context) {
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c.Header("X-Test", "original")
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c.Header("X-Test-2", "present")
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c.String(http.StatusOK, "hello world")
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})
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c.Request = httptest.NewRequest("GET", "/", nil)
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r.HandleContext(c)
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// Result() has headers frozen when WriteHeaderNow() has been called
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// Compared to this time, this is when the response headers will be flushed
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// As response is flushed on c.String, the Header cannot be set by the first
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// middleware. Assert this
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assert.Equal(t, "", w.Result().Header.Get("X-Test"))
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assert.Equal(t, "present", w.Result().Header.Get("X-Test-2"))
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}
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