adding in logging

vendor/go.uber.org/zap/error_test.go

@@ -0,0 +1,99 @@
+// Copyright (c) 2017 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 (
+	"errors"
+	"testing"
+
+	"go.uber.org/zap/zapcore"
+
+	richErrors "github.com/pkg/errors"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestErrorConstructors(t *testing.T) {
+	fail := errors.New("fail")
+
+	tests := []struct {
+		name   string
+		field  zapcore.Field
+		expect zapcore.Field
+	}{
+		{"Error", Skip(), Error(nil)},
+		{"Error", zapcore.Field{Key: "error", Type: zapcore.ErrorType, Interface: fail}, Error(fail)},
+		{"NamedError", Skip(), NamedError("foo", nil)},
+		{"NamedError", zapcore.Field{Key: "foo", Type: zapcore.ErrorType, Interface: fail}, NamedError("foo", fail)},
+		{"Any:Error", Any("k", errors.New("v")), NamedError("k", errors.New("v"))},
+		{"Any:Errors", Any("k", []error{errors.New("v")}), Errors("k", []error{errors.New("v")})},
+	}
+
+	for _, tt := range tests {
+		if !assert.Equal(t, tt.expect, tt.field, "Unexpected output from convenience field constructor %s.", tt.name) {
+			t.Logf("type expected: %T\nGot: %T", tt.expect.Interface, tt.field.Interface)
+		}
+		assertCanBeReused(t, tt.field)
+	}
+}
+
+func TestErrorArrayConstructor(t *testing.T) {
+	tests := []struct {
+		desc     string
+		field    zapcore.Field
+		expected []interface{}
+	}{
+		{"empty errors", Errors("", []error{}), []interface{}(nil)},
+		{
+			"errors",
+			Errors("", []error{nil, errors.New("foo"), nil, errors.New("bar")}),
+			[]interface{}{map[string]interface{}{"error": "foo"}, map[string]interface{}{"error": "bar"}},
+		},
+	}
+
+	for _, tt := range tests {
+		enc := zapcore.NewMapObjectEncoder()
+		tt.field.Key = "k"
+		tt.field.AddTo(enc)
+		assert.Equal(t, tt.expected, enc.Fields["k"], "%s: unexpected map contents.", tt.desc)
+		assert.Equal(t, 1, len(enc.Fields), "%s: found extra keys in map: %v", tt.desc, enc.Fields)
+	}
+}
+
+func TestErrorsArraysHandleRichErrors(t *testing.T) {
+	errs := []error{richErrors.New("egad")}
+
+	enc := zapcore.NewMapObjectEncoder()
+	Errors("k", errs).AddTo(enc)
+	assert.Equal(t, 1, len(enc.Fields), "Expected only top-level field.")
+
+	val := enc.Fields["k"]
+	arr, ok := val.([]interface{})
+	require.True(t, ok, "Expected top-level field to be an array.")
+	require.Equal(t, 1, len(arr), "Expected only one error object in array.")
+
+	serialized := arr[0]
+	errMap, ok := serialized.(map[string]interface{})
+	require.True(t, ok, "Expected serialized error to be a map, got %T.", serialized)
+	assert.Equal(t, "egad", errMap["error"], "Unexpected standard error string.")
+	assert.Contains(t, errMap["errorVerbose"], "egad", "Verbose error string should be a superset of standard error.")
+	assert.Contains(t, errMap["errorVerbose"], "TestErrorsArraysHandleRichErrors", "Verbose error string should contain a stacktrace.")
+}