File: logger_test.go

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golang-github-juju-loggo 0.0~git20170605.8232ab8-4
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// Copyright 2014 Canonical Ltd.
// Licensed under the LGPLv3, see LICENCE file for details.

package loggo_test

import (
	gc "gopkg.in/check.v1"

	"github.com/juju/loggo"
)

type LoggerSuite struct{}

var _ = gc.Suite(&LoggerSuite{})

func (*LoggerSuite) SetUpTest(c *gc.C) {
	loggo.ResetDefaultContext()
}

func (s *LoggerSuite) TestRootLogger(c *gc.C) {
	root := loggo.Logger{}
	c.Check(root.Name(), gc.Equals, "<root>")
	c.Check(root.LogLevel(), gc.Equals, loggo.WARNING)
	c.Check(root.IsErrorEnabled(), gc.Equals, true)
	c.Check(root.IsWarningEnabled(), gc.Equals, true)
	c.Check(root.IsInfoEnabled(), gc.Equals, false)
	c.Check(root.IsDebugEnabled(), gc.Equals, false)
	c.Check(root.IsTraceEnabled(), gc.Equals, false)
}

func (s *LoggerSuite) TestSetLevel(c *gc.C) {
	logger := loggo.GetLogger("testing")

	c.Assert(logger.LogLevel(), gc.Equals, loggo.UNSPECIFIED)
	c.Assert(logger.EffectiveLogLevel(), gc.Equals, loggo.WARNING)
	c.Assert(logger.IsErrorEnabled(), gc.Equals, true)
	c.Assert(logger.IsWarningEnabled(), gc.Equals, true)
	c.Assert(logger.IsInfoEnabled(), gc.Equals, false)
	c.Assert(logger.IsDebugEnabled(), gc.Equals, false)
	c.Assert(logger.IsTraceEnabled(), gc.Equals, false)
	logger.SetLogLevel(loggo.TRACE)
	c.Assert(logger.LogLevel(), gc.Equals, loggo.TRACE)
	c.Assert(logger.EffectiveLogLevel(), gc.Equals, loggo.TRACE)
	c.Assert(logger.IsErrorEnabled(), gc.Equals, true)
	c.Assert(logger.IsWarningEnabled(), gc.Equals, true)
	c.Assert(logger.IsInfoEnabled(), gc.Equals, true)
	c.Assert(logger.IsDebugEnabled(), gc.Equals, true)
	c.Assert(logger.IsTraceEnabled(), gc.Equals, true)
	logger.SetLogLevel(loggo.DEBUG)
	c.Assert(logger.LogLevel(), gc.Equals, loggo.DEBUG)
	c.Assert(logger.EffectiveLogLevel(), gc.Equals, loggo.DEBUG)
	c.Assert(logger.IsErrorEnabled(), gc.Equals, true)
	c.Assert(logger.IsWarningEnabled(), gc.Equals, true)
	c.Assert(logger.IsInfoEnabled(), gc.Equals, true)
	c.Assert(logger.IsDebugEnabled(), gc.Equals, true)
	c.Assert(logger.IsTraceEnabled(), gc.Equals, false)
	logger.SetLogLevel(loggo.INFO)
	c.Assert(logger.LogLevel(), gc.Equals, loggo.INFO)
	c.Assert(logger.EffectiveLogLevel(), gc.Equals, loggo.INFO)
	c.Assert(logger.IsErrorEnabled(), gc.Equals, true)
	c.Assert(logger.IsWarningEnabled(), gc.Equals, true)
	c.Assert(logger.IsInfoEnabled(), gc.Equals, true)
	c.Assert(logger.IsDebugEnabled(), gc.Equals, false)
	c.Assert(logger.IsTraceEnabled(), gc.Equals, false)
	logger.SetLogLevel(loggo.WARNING)
	c.Assert(logger.LogLevel(), gc.Equals, loggo.WARNING)
	c.Assert(logger.EffectiveLogLevel(), gc.Equals, loggo.WARNING)
	c.Assert(logger.IsErrorEnabled(), gc.Equals, true)
	c.Assert(logger.IsWarningEnabled(), gc.Equals, true)
	c.Assert(logger.IsInfoEnabled(), gc.Equals, false)
	c.Assert(logger.IsDebugEnabled(), gc.Equals, false)
	c.Assert(logger.IsTraceEnabled(), gc.Equals, false)
	logger.SetLogLevel(loggo.ERROR)
	c.Assert(logger.LogLevel(), gc.Equals, loggo.ERROR)
	c.Assert(logger.EffectiveLogLevel(), gc.Equals, loggo.ERROR)
	c.Assert(logger.IsErrorEnabled(), gc.Equals, true)
	c.Assert(logger.IsWarningEnabled(), gc.Equals, false)
	c.Assert(logger.IsInfoEnabled(), gc.Equals, false)
	c.Assert(logger.IsDebugEnabled(), gc.Equals, false)
	c.Assert(logger.IsTraceEnabled(), gc.Equals, false)
	// This is added for completeness, but not really expected to be used.
	logger.SetLogLevel(loggo.CRITICAL)
	c.Assert(logger.LogLevel(), gc.Equals, loggo.CRITICAL)
	c.Assert(logger.EffectiveLogLevel(), gc.Equals, loggo.CRITICAL)
	c.Assert(logger.IsErrorEnabled(), gc.Equals, false)
	c.Assert(logger.IsWarningEnabled(), gc.Equals, false)
	c.Assert(logger.IsInfoEnabled(), gc.Equals, false)
	c.Assert(logger.IsDebugEnabled(), gc.Equals, false)
	c.Assert(logger.IsTraceEnabled(), gc.Equals, false)
	logger.SetLogLevel(loggo.UNSPECIFIED)
	c.Assert(logger.LogLevel(), gc.Equals, loggo.UNSPECIFIED)
	c.Assert(logger.EffectiveLogLevel(), gc.Equals, loggo.WARNING)
}

func (s *LoggerSuite) TestModuleLowered(c *gc.C) {
	logger1 := loggo.GetLogger("TESTING.MODULE")
	logger2 := loggo.GetLogger("Testing")

	c.Assert(logger1.Name(), gc.Equals, "testing.module")
	c.Assert(logger2.Name(), gc.Equals, "testing")
}

func (s *LoggerSuite) TestLevelsInherited(c *gc.C) {
	root := loggo.GetLogger("")
	first := loggo.GetLogger("first")
	second := loggo.GetLogger("first.second")

	root.SetLogLevel(loggo.ERROR)
	c.Assert(root.LogLevel(), gc.Equals, loggo.ERROR)
	c.Assert(root.EffectiveLogLevel(), gc.Equals, loggo.ERROR)
	c.Assert(first.LogLevel(), gc.Equals, loggo.UNSPECIFIED)
	c.Assert(first.EffectiveLogLevel(), gc.Equals, loggo.ERROR)
	c.Assert(second.LogLevel(), gc.Equals, loggo.UNSPECIFIED)
	c.Assert(second.EffectiveLogLevel(), gc.Equals, loggo.ERROR)

	first.SetLogLevel(loggo.DEBUG)
	c.Assert(root.LogLevel(), gc.Equals, loggo.ERROR)
	c.Assert(root.EffectiveLogLevel(), gc.Equals, loggo.ERROR)
	c.Assert(first.LogLevel(), gc.Equals, loggo.DEBUG)
	c.Assert(first.EffectiveLogLevel(), gc.Equals, loggo.DEBUG)
	c.Assert(second.LogLevel(), gc.Equals, loggo.UNSPECIFIED)
	c.Assert(second.EffectiveLogLevel(), gc.Equals, loggo.DEBUG)

	second.SetLogLevel(loggo.INFO)
	c.Assert(root.LogLevel(), gc.Equals, loggo.ERROR)
	c.Assert(root.EffectiveLogLevel(), gc.Equals, loggo.ERROR)
	c.Assert(first.LogLevel(), gc.Equals, loggo.DEBUG)
	c.Assert(first.EffectiveLogLevel(), gc.Equals, loggo.DEBUG)
	c.Assert(second.LogLevel(), gc.Equals, loggo.INFO)
	c.Assert(second.EffectiveLogLevel(), gc.Equals, loggo.INFO)

	first.SetLogLevel(loggo.UNSPECIFIED)
	c.Assert(root.LogLevel(), gc.Equals, loggo.ERROR)
	c.Assert(root.EffectiveLogLevel(), gc.Equals, loggo.ERROR)
	c.Assert(first.LogLevel(), gc.Equals, loggo.UNSPECIFIED)
	c.Assert(first.EffectiveLogLevel(), gc.Equals, loggo.ERROR)
	c.Assert(second.LogLevel(), gc.Equals, loggo.INFO)
	c.Assert(second.EffectiveLogLevel(), gc.Equals, loggo.INFO)
}