gin/response_writer_test.go

90 lines
2.1 KiB
Go

// Copyright 2014 Manu Martinez-Almeida. All rights reserved.
// Use of this source code is governed by a MIT style
// license that can be found in the LICENSE file.
package gin
import (
"net/http"
"net/http/httptest"
"testing"
"github.com/stretchr/testify/assert"
)
var _ ResponseWriter = &responseWriter{}
var _ http.ResponseWriter = &responseWriter{}
var _ http.ResponseWriter = ResponseWriter(&responseWriter{})
func init() {
SetMode(TestMode)
}
func TestResponseWriterReset(t *testing.T) {
testWritter := httptest.NewRecorder()
writer := &responseWriter{}
var w ResponseWriter = writer
writer.reset(testWritter)
assert.Equal(t, writer.size, -1)
assert.Equal(t, writer.status, 200)
assert.Equal(t, writer.ResponseWriter, testWritter)
assert.Equal(t, w.Size(), -1)
assert.Equal(t, w.Status(), 200)
assert.False(t, w.Written())
}
func TestResponseWriterWriteHeader(t *testing.T) {
testWritter := httptest.NewRecorder()
writer := &responseWriter{}
writer.reset(testWritter)
w := ResponseWriter(writer)
w.WriteHeader(300)
assert.False(t, w.Written())
assert.Equal(t, w.Status(), 300)
assert.NotEqual(t, testWritter.Code, 300)
w.WriteHeader(-1)
assert.Equal(t, w.Status(), 300)
}
func TestResponseWriterWriteHeadersNow(t *testing.T) {
testWritter := httptest.NewRecorder()
writer := &responseWriter{}
writer.reset(testWritter)
w := ResponseWriter(writer)
w.WriteHeader(300)
w.WriteHeaderNow()
assert.True(t, w.Written())
assert.Equal(t, w.Size(), 0)
assert.Equal(t, testWritter.Code, 300)
writer.size = 10
w.WriteHeaderNow()
assert.Equal(t, w.Size(), 10)
}
func TestResponseWriterWrite(t *testing.T) {
testWritter := httptest.NewRecorder()
writer := &responseWriter{}
writer.reset(testWritter)
w := ResponseWriter(writer)
n, err := w.Write([]byte("hola"))
assert.Equal(t, n, 4)
assert.Equal(t, w.Size(), 4)
assert.Equal(t, w.Status(), 200)
assert.Equal(t, testWritter.Code, 200)
assert.Equal(t, testWritter.Body.String(), "hola")
assert.NoError(t, err)
n, err = w.Write([]byte(" adios"))
assert.Equal(t, n, 6)
assert.Equal(t, w.Size(), 10)
assert.Equal(t, testWritter.Body.String(), "hola adios")
assert.NoError(t, err)
}