1 files changed, 136 insertions, 0 deletions
diff --git a/dependencies/pkg/mod/go.uber.org/zap@v1.23.0/zapcore/write_syncer_test.go b/dependencies/pkg/mod/go.uber.org/zap@v1.23.0/zapcore/write_syncer_test.go
new file mode 100644
index 0000000..4748be7
--- /dev/null
+++ b/dependencies/pkg/mod/go.uber.org/zap@v1.23.0/zapcore/write_syncer_test.go
@@ -0,0 +1,136 @@
+// 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 zapcore
+
+import (
+	"bytes"
+	"errors"
+	"io"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+	"go.uber.org/zap/internal/ztest"
+)
+
+type writeSyncSpy struct {
+	io.Writer
+	ztest.Syncer
+}
+
+func requireWriteWorks(t testing.TB, ws WriteSyncer) {
+	n, err := ws.Write([]byte("foo"))
+	require.NoError(t, err, "Unexpected error writing to WriteSyncer.")
+	require.Equal(t, 3, n, "Wrote an unexpected number of bytes.")
+}
+
+func TestAddSyncWriteSyncer(t *testing.T) {
+	buf := &bytes.Buffer{}
+	concrete := &writeSyncSpy{Writer: buf}
+	ws := AddSync(concrete)
+	requireWriteWorks(t, ws)
+
+	require.NoError(t, ws.Sync(), "Unexpected error syncing a WriteSyncer.")
+	require.True(t, concrete.Called(), "Expected to dispatch to concrete type's Sync method.")
+
+	concrete.SetError(errors.New("fail"))
+	assert.Error(t, ws.Sync(), "Expected to propagate errors from concrete type's Sync method.")
+}
+
+func TestAddSyncWriter(t *testing.T) {
+	// If we pass a plain io.Writer, make sure that we still get a WriteSyncer
+	// with a no-op Sync.
+	buf := &bytes.Buffer{}
+	ws := AddSync(buf)
+	requireWriteWorks(t, ws)
+	assert.NoError(t, ws.Sync(), "Unexpected error calling a no-op Sync method.")
+}
+
+func TestNewMultiWriteSyncerWorksForSingleWriter(t *testing.T) {
+	w := &ztest.Buffer{}
+
+	ws := NewMultiWriteSyncer(w)
+	assert.Equal(t, w, ws, "Expected NewMultiWriteSyncer to return the same WriteSyncer object for a single argument.")
+
+	ws.Sync()
+	assert.True(t, w.Called(), "Expected Sync to be called on the created WriteSyncer")
+}
+
+func TestMultiWriteSyncerWritesBoth(t *testing.T) {
+	first := &bytes.Buffer{}
+	second := &bytes.Buffer{}
+	ws := NewMultiWriteSyncer(AddSync(first), AddSync(second))
+
+	msg := []byte("dumbledore")
+	n, err := ws.Write(msg)
+	require.NoError(t, err, "Expected successful buffer write")
+	assert.Equal(t, len(msg), n)
+
+	assert.Equal(t, msg, first.Bytes())
+	assert.Equal(t, msg, second.Bytes())
+}
+
+func TestMultiWriteSyncerFailsWrite(t *testing.T) {
+	ws := NewMultiWriteSyncer(AddSync(&ztest.FailWriter{}))
+	_, err := ws.Write([]byte("test"))
+	assert.Error(t, err, "Write error should propagate")
+}
+
+func TestMultiWriteSyncerFailsShortWrite(t *testing.T) {
+	ws := NewMultiWriteSyncer(AddSync(&ztest.ShortWriter{}))
+	n, err := ws.Write([]byte("test"))
+	assert.NoError(t, err, "Expected fake-success from short write")
+	assert.Equal(t, 3, n, "Expected byte count to return from underlying writer")
+}
+
+func TestWritestoAllSyncs_EvenIfFirstErrors(t *testing.T) {
+	failer := &ztest.FailWriter{}
+	second := &bytes.Buffer{}
+	ws := NewMultiWriteSyncer(AddSync(failer), AddSync(second))
+
+	_, err := ws.Write([]byte("fail"))
+	assert.Error(t, err, "Expected error from call to a writer that failed")
+	assert.Equal(t, []byte("fail"), second.Bytes(), "Expected second sink to be written after first error")
+}
+
+func TestMultiWriteSyncerSync_PropagatesErrors(t *testing.T) {
+	badsink := &ztest.Buffer{}
+	badsink.SetError(errors.New("sink is full"))
+	ws := NewMultiWriteSyncer(&ztest.Discarder{}, badsink)
+
+	assert.Error(t, ws.Sync(), "Expected sync error to propagate")
+}
+
+func TestMultiWriteSyncerSync_NoErrorsOnDiscard(t *testing.T) {
+	ws := NewMultiWriteSyncer(&ztest.Discarder{})
+	assert.NoError(t, ws.Sync(), "Expected error-free sync to /dev/null")
+}
+
+func TestMultiWriteSyncerSync_AllCalled(t *testing.T) {
+	failed, second := &ztest.Buffer{}, &ztest.Buffer{}
+
+	failed.SetError(errors.New("disposal broken"))
+	ws := NewMultiWriteSyncer(failed, second)
+
+	assert.Error(t, ws.Sync(), "Expected first sink to fail")
+	assert.True(t, failed.Called(), "Expected first sink to have Sync method called.")
+	assert.True(t, second.Called(), "Expected call to Sync even with first failure.")
+}