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logging_test.go
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logging_test.go
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// Copyright 2020 CleverGo. All rights reserved.
// Use of this source code is governed by a MIT style license that can be found
// in the LICENSE file.
package clevergo
import (
"bytes"
"errors"
stdlog "log"
"net/http"
"net/http/httptest"
"testing"
"clevergo.tech/log"
"github.com/stretchr/testify/assert"
)
func TestLoggingLogger(t *testing.T) {
l := &logging{}
assert.Nil(t, l.logger)
LoggingLogger(logger)(l)
assert.Equal(t, logger, l.logger)
}
func TestLogging(t *testing.T) {
m := Logging(LoggingLogger(logger))
cases := []struct {
err error
}{
{nil},
{ErrNotFound},
{errors.New("foobar")},
}
for _, test := range cases {
handled := true
handle := m(func(c *Context) error {
handled = true
c.WriteHeader(http.StatusOK)
return test.err
})
resp := httptest.NewRecorder()
c := newContext(resp, httptest.NewRequest(http.MethodGet, "/", nil))
c.app = Pure()
assert.Equal(t, test.err, handle(c))
assert.True(t, handled)
}
}
func TestBufferedResponseWrite(t *testing.T) {
data := []byte("foobar")
w := &bufferedResponse{}
w.Write(data)
assert.Equal(t, data, w.buf.Bytes())
}
func TestBufferedResponseWriteString(t *testing.T) {
data := "foobar"
w := &bufferedResponse{}
w.WriteString(data)
assert.Equal(t, data, w.buf.String())
}
func TestBufferedResponse(t *testing.T) {
w := httptest.NewRecorder()
resp := newBufferedResponse(w)
assert.Equal(t, w, resp.ResponseWriter)
assert.Equal(t, http.StatusOK, resp.statusCode)
assert.False(t, resp.wroteHeader)
}
func TestBufferedResponseWriteHeader(t *testing.T) {
w := httptest.NewRecorder()
resp := newBufferedResponse(w)
resp.WriteHeader(http.StatusNotFound)
assert.Equal(t, http.StatusNotFound, resp.statusCode)
assert.True(t, resp.wroteHeader)
resp.WriteHeader(http.StatusOK)
assert.Equal(t, http.StatusNotFound, resp.statusCode)
}
type nullWriter struct {
err error
}
func (*nullWriter) Header() http.Header {
return http.Header{}
}
func (*nullWriter) WriteHeader(statusCode int) {
}
func (w *nullWriter) Write(p []byte) (int, error) {
return 0, w.err
}
func TestBufferedResponseEmit(t *testing.T) {
output := &bytes.Buffer{}
expectedErr := errors.New("failed to write response")
w := &nullWriter{expectedErr}
c := newContext(w, httptest.NewRequest(http.MethodGet, "/", nil))
c.app = Pure()
c.app.Logger = log.New(output, "", stdlog.LstdFlags)
Logging()(fakeHandler("buffered response test"))(c)
assert.Contains(t, output.String(), expectedErr.Error())
}