log_test.go

// Copyright (c) 2021 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 fx

import (
	"testing"

	"github.com/stretchr/testify/assert"
	"go.uber.org/fx/fxevent"
	"go.uber.org/fx/internal/fxlog"
	"go.uber.org/zap"
	"go.uber.org/zap/zaptest"
	"go.uber.org/zap/zaptest/observer"
)

func TestLogBufferConnect(t *testing.T) {
	t.Parallel()

	spy := new(fxlog.Spy)
	event := &fxevent.Started{}
	lb := &logBuffer{
		events: []fxevent.Event{event},
		logger: nil,
	}

	lb.Connect(spy)
	assert.Equal(t, fxlog.Events{event}, spy.Events())
}

func TestLogBufferLog(t *testing.T) {
	t.Parallel()

	spy := new(fxlog.Spy)
	event := &fxevent.Started{}
	lb := &logBuffer{
		events: nil,
		logger: nil,
	}

	lb.LogEvent(event)

	lb.Connect(spy)
	assert.Equal(t, fxlog.Events{event}, spy.Events())
}

func TestWithLoggerDecorate(t *testing.T) {
	t.Parallel()

	core, logs := observer.New(zap.DebugLevel)
	New(
		Supply(zaptest.NewLogger(t)), // provide a logger
		Replace(zap.New(core)),       // and replace it
		WithLogger(func(log *zap.Logger) fxevent.Logger {
			return &fxevent.ZapLogger{Logger: log}
		}),
	)

	assert.NotZero(t, logs.Len(),
		"should post to replacement logger")
}