writer_test.go

Documentation: go.uber.org/zap/zaptest

     1  // Copyright (c) 2016 Uber Technologies, Inc.
     2  //
     3  // Permission is hereby granted, free of charge, to any person obtaining a copy
     4  // of this software and associated documentation files (the "Software"), to deal
     5  // in the Software without restriction, including without limitation the rights
     6  // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
     7  // copies of the Software, and to permit persons to whom the Software is
     8  // furnished to do so, subject to the following conditions:
     9  //
    10  // The above copyright notice and this permission notice shall be included in
    11  // all copies or substantial portions of the Software.
    12  //
    13  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    14  // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    15  // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    16  // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    17  // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    18  // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
    19  // THE SOFTWARE.
    20  
    21  package zaptest
    22  
    23  import (
    24  	"errors"
    25  	"testing"
    26  
    27  	"github.com/stretchr/testify/assert"
    28  )
    29  
    30  func TestSyncer(t *testing.T) {
    31  	err := errors.New("sentinel")
    32  	s := &Syncer{}
    33  	s.SetError(err)
    34  	assert.Equal(t, err, s.Sync(), "Expected Sync to fail with provided error.")
    35  	assert.True(t, s.Called(), "Expected to record that Sync was called.")
    36  }
    37  
    38  func TestDiscarder(t *testing.T) {
    39  	d := &Discarder{}
    40  	payload := []byte("foo")
    41  	n, err := d.Write(payload)
    42  	assert.NoError(t, err, "Unexpected error writing to Discarder.")
    43  	assert.Equal(t, len(payload), n, "Wrong number of bytes written.")
    44  }
    45  
    46  func TestFailWriter(t *testing.T) {
    47  	w := &FailWriter{}
    48  	payload := []byte("foo")
    49  	n, err := w.Write(payload)
    50  	assert.Error(t, err, "Expected an error writing to FailWriter.")
    51  	assert.Equal(t, len(payload), n, "Wrong number of bytes written.")
    52  }
    53  
    54  func TestShortWriter(t *testing.T) {
    55  	w := &ShortWriter{}
    56  	payload := []byte("foo")
    57  	n, err := w.Write(payload)
    58  	assert.NoError(t, err, "Unexpected error writing to ShortWriter.")
    59  	assert.Equal(t, len(payload)-1, n, "Wrong number of bytes written.")
    60  }
    61  
    62  func TestBuffer(t *testing.T) {
    63  	buf := &Buffer{}
    64  	buf.WriteString("foo\n")
    65  	buf.WriteString("bar\n")
    66  	assert.Equal(t, []string{"foo", "bar"}, buf.Lines(), "Unexpected output from Lines.")
    67  	assert.Equal(t, "foo\nbar", buf.Stripped(), "Unexpected output from Stripped.")
    68  }
    69
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