adding in logging

vendor/go.uber.org/zap/encoder_test.go

@@ -0,0 +1,88 @@
+// 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 zap
+
+import (
+	"testing"
+
+	"go.uber.org/zap/zapcore"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestRegisterDefaultEncoders(t *testing.T) {
+	testEncodersRegistered(t, "console", "json")
+}
+
+func TestRegisterEncoder(t *testing.T) {
+	testEncoders(func() {
+		assert.NoError(t, RegisterEncoder("foo", newNilEncoder), "expected to be able to register the encoder foo")
+		testEncodersRegistered(t, "foo")
+	})
+}
+
+func TestDuplicateRegisterEncoder(t *testing.T) {
+	testEncoders(func() {
+		RegisterEncoder("foo", newNilEncoder)
+		assert.Error(t, RegisterEncoder("foo", newNilEncoder), "expected an error when registering an encoder with the same name twice")
+	})
+}
+
+func TestRegisterEncoderNoName(t *testing.T) {
+	assert.Equal(t, errNoEncoderNameSpecified, RegisterEncoder("", newNilEncoder), "expected an error when registering an encoder with no name")
+}
+
+func TestNewEncoder(t *testing.T) {
+	testEncoders(func() {
+		RegisterEncoder("foo", newNilEncoder)
+		encoder, err := newEncoder("foo", zapcore.EncoderConfig{})
+		assert.NoError(t, err, "could not create an encoder for the registered name foo")
+		assert.Nil(t, encoder, "the encoder from newNilEncoder is not nil")
+	})
+}
+
+func TestNewEncoderNotRegistered(t *testing.T) {
+	_, err := newEncoder("foo", zapcore.EncoderConfig{})
+	assert.Error(t, err, "expected an error when trying to create an encoder of an unregistered name")
+}
+
+func TestNewEncoderNoName(t *testing.T) {
+	_, err := newEncoder("", zapcore.EncoderConfig{})
+	assert.Equal(t, errNoEncoderNameSpecified, err, "expected an error when creating an encoder with no name")
+}
+
+func testEncoders(f func()) {
+	existing := _encoderNameToConstructor
+	_encoderNameToConstructor = make(map[string]func(zapcore.EncoderConfig) (zapcore.Encoder, error))
+	defer func() { _encoderNameToConstructor = existing }()
+	f()
+}
+
+func testEncodersRegistered(t *testing.T, names ...string) {
+	assert.Len(t, _encoderNameToConstructor, len(names), "the expected number of registered encoders does not match the actual number")
+	for _, name := range names {
+		assert.NotNil(t, _encoderNameToConstructor[name], "no encoder is registered for name %s", name)
+	}
+}
+
+func newNilEncoder(_ zapcore.EncoderConfig) (zapcore.Encoder, error) {
+	return nil, nil
+}