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path: root/vendor/go.uber.org/zap/zaptest/writer_test.go
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// Copyright (c) 2016 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

package zaptest

import (
	"errors"
	"testing"

	"github.com/stretchr/testify/assert"
)

func TestSyncer(t *testing.T) {
	err := errors.New("sentinel")
	s := &Syncer{}
	s.SetError(err)
	assert.Equal(t, err, s.Sync(), "Expected Sync to fail with provided error.")
	assert.True(t, s.Called(), "Expected to record that Sync was called.")
}

func TestDiscarder(t *testing.T) {
	d := &Discarder{}
	payload := []byte("foo")
	n, err := d.Write(payload)
	assert.NoError(t, err, "Unexpected error writing to Discarder.")
	assert.Equal(t, len(payload), n, "Wrong number of bytes written.")
}

func TestFailWriter(t *testing.T) {
	w := &FailWriter{}
	payload := []byte("foo")
	n, err := w.Write(payload)
	assert.Error(t, err, "Expected an error writing to FailWriter.")
	assert.Equal(t, len(payload), n, "Wrong number of bytes written.")
}

func TestShortWriter(t *testing.T) {
	w := &ShortWriter{}
	payload := []byte("foo")
	n, err := w.Write(payload)
	assert.NoError(t, err, "Unexpected error writing to ShortWriter.")
	assert.Equal(t, len(payload)-1, n, "Wrong number of bytes written.")
}

func TestBuffer(t *testing.T) {
	buf := &Buffer{}
	buf.WriteString("foo\n")
	buf.WriteString("bar\n")
	assert.Equal(t, []string{"foo", "bar"}, buf.Lines(), "Unexpected output from Lines.")
	assert.Equal(t, "foo\nbar", buf.Stripped(), "Unexpected output from Stripped.")
}