/
logger_test.go
425 lines (348 loc) · 14.6 KB
/
logger_test.go
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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/v2"
)
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{}.WithCallDepth(2)
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) TestWithLabels(c *gc.C) {
writer := &loggo.TestWriter{}
context := loggo.NewContext(loggo.INFO)
err := context.AddWriter("test", writer)
c.Assert(err, gc.IsNil)
logger := context.GetLogger("testing")
loggerWithLabels := logger.WithLabels(loggo.Labels{"foo": "bar"})
loggerWithTagsAndLabels := logger.
ChildWithTags("withTags", "tag1", "tag2").
WithLabels(loggo.Labels{"hello": "world"})
logger.Logf(loggo.INFO, "without labels")
loggerWithLabels.Logf(loggo.INFO, "with labels")
loggerWithTagsAndLabels.Logf(loggo.INFO, "with tags and labels")
logs := writer.Log()
c.Assert(logs, gc.HasLen, 3)
c.Check(logs[0].Message, gc.Equals, "without labels")
c.Check(logs[0].Labels, gc.HasLen, 0)
c.Check(logs[1].Message, gc.Equals, "with labels")
c.Check(logs[1].Labels, gc.DeepEquals, loggo.Labels{"foo": "bar"})
c.Check(logs[2].Message, gc.Equals, "with tags and labels")
c.Check(logs[2].Labels, gc.DeepEquals, loggo.Labels{
"logger-tags": "tag1,tag2",
"hello": "world",
})
}
func (s *LoggerSuite) TestNonInheritedLabels(c *gc.C) {
writer := &loggo.TestWriter{}
context := loggo.NewContext(loggo.INFO)
err := context.AddWriter("test", writer)
c.Assert(err, gc.IsNil)
logger := context.GetLogger("testing").
WithLabels(loggo.Labels{"hello": "world"})
inheritedLoggerWithLabels := logger.
ChildWithLabels("inherited", loggo.Labels{"foo": "bar"})
logger.Logf(loggo.INFO, "with labels")
inheritedLoggerWithLabels.Logf(loggo.INFO, "with inherited labels")
logs := writer.Log()
c.Assert(logs, gc.HasLen, 2)
// The second log message should _only_ have the inherited labels.
c.Check(logs[0].Message, gc.Equals, "with labels")
c.Check(logs[0].Labels, gc.DeepEquals, loggo.Labels{"hello": "world"})
c.Check(logs[1].Message, gc.Equals, "with inherited labels")
c.Check(logs[1].Labels, gc.DeepEquals, loggo.Labels{"foo": "bar"})
}
func (s *LoggerSuite) TestNonInheritedWithInheritedLabels(c *gc.C) {
writer := &loggo.TestWriter{}
context := loggo.NewContext(loggo.INFO)
err := context.AddWriter("test", writer)
c.Assert(err, gc.IsNil)
logger := context.GetLogger("testing")
inheritedLoggerWithLabels := logger.
ChildWithLabels("inherited", loggo.Labels{"foo": "bar"})
scopedLoggerWithLabels := inheritedLoggerWithLabels.
WithLabels(loggo.Labels{"hello": "world"})
inheritedLoggerWithLabels.Logf(loggo.INFO, "with inherited labels")
scopedLoggerWithLabels.Logf(loggo.INFO, "with scoped labels")
logs := writer.Log()
c.Assert(logs, gc.HasLen, 2)
// The second log message should have both the inherited labels and
// scoped labels.
c.Check(logs[0].Message, gc.Equals, "with inherited labels")
c.Check(logs[0].Labels, gc.DeepEquals, loggo.Labels{"foo": "bar"})
c.Check(logs[1].Message, gc.Equals, "with scoped labels")
c.Check(logs[1].Labels, gc.DeepEquals, loggo.Labels{
"foo": "bar",
"hello": "world",
})
}
func (s *LoggerSuite) TestInheritedLabels(c *gc.C) {
writer := &loggo.TestWriter{}
context := loggo.NewContext(loggo.INFO)
err := context.AddWriter("test", writer)
c.Assert(err, gc.IsNil)
logger := context.GetLogger("testing")
nestedLoggerWithLabels := logger.
ChildWithLabels("nested", loggo.Labels{"foo": "bar"})
deepNestedLoggerWithLabels := nestedLoggerWithLabels.
ChildWithLabels("nested", loggo.Labels{"foo": "bar"}).
ChildWithLabels("deepnested", loggo.Labels{"fred": "tim"})
loggerWithTagsAndLabels := logger.
ChildWithLabels("nested-labels", loggo.Labels{"hello": "world"}).
ChildWithTags("nested-tag", "tag1", "tag2")
logger.Logf(loggo.INFO, "without labels")
nestedLoggerWithLabels.Logf(loggo.INFO, "with nested labels")
deepNestedLoggerWithLabels.Logf(loggo.INFO, "with deep nested labels")
loggerWithTagsAndLabels.Logf(loggo.INFO, "with tags and labels")
logs := writer.Log()
c.Assert(logs, gc.HasLen, 4)
c.Check(logs[0].Message, gc.Equals, "without labels")
c.Check(logs[0].Labels, gc.HasLen, 0)
c.Check(logs[1].Message, gc.Equals, "with nested labels")
c.Check(logs[1].Labels, gc.DeepEquals, loggo.Labels{"foo": "bar"})
c.Check(logs[2].Message, gc.Equals, "with deep nested labels")
c.Check(logs[2].Labels, gc.DeepEquals, loggo.Labels{
"foo": "bar",
"fred": "tim",
})
c.Check(logs[3].Message, gc.Equals, "with tags and labels")
c.Check(logs[3].Labels, gc.DeepEquals, loggo.Labels{
"logger-tags": "tag1,tag2",
"hello": "world",
})
}
func (s *LoggerSuite) TestLogWithStaticAndDynamicLabels(c *gc.C) {
writer := &loggo.TestWriter{}
context := loggo.NewContext(loggo.INFO)
err := context.AddWriter("test", writer)
c.Assert(err, gc.IsNil)
logger := context.GetLogger("testing")
loggerWithLabels := logger.WithLabels(loggo.Labels{"foo": "bar"})
loggerWithLabels.LogWithLabelsf(loggo.INFO, "no extra labels", nil)
loggerWithLabels.LogWithLabelsf(loggo.INFO, "with extra labels", map[string]string{
"domain": "status",
"kind": "machine",
"id": "0",
"value": "idle",
})
logs := writer.Log()
c.Assert(logs, gc.HasLen, 2)
c.Check(logs[0].Message, gc.Equals, "no extra labels")
c.Check(logs[0].Labels, gc.DeepEquals, loggo.Labels{"foo": "bar"})
c.Check(logs[1].Message, gc.Equals, "with extra labels")
c.Check(logs[1].Labels, gc.DeepEquals, loggo.Labels{
"foo": "bar", "domain": "status", "id": "0", "kind": "machine", "value": "idle"})
}
func (s *LoggerSuite) TestLogWithExtraLabels(c *gc.C) {
writer := &loggo.TestWriter{}
context := loggo.NewContext(loggo.INFO)
err := context.AddWriter("test", writer)
c.Assert(err, gc.IsNil)
logger := context.GetLogger("testing")
logger.LogWithLabelsf(loggo.INFO, "no extra labels", nil)
logger.LogWithLabelsf(loggo.INFO, "with extra labels", map[string]string{
"domain": "status",
"kind": "machine",
"id": "0",
"value": "idle",
})
logs := writer.Log()
c.Assert(logs, gc.HasLen, 2)
c.Check(logs[0].Message, gc.Equals, "no extra labels")
c.Check(logs[0].Labels, gc.HasLen, 0)
c.Check(logs[1].Message, gc.Equals, "with extra labels")
c.Check(logs[1].Labels, gc.DeepEquals, loggo.Labels{
"domain": "status", "id": "0", "kind": "machine", "value": "idle"})
}
func (s *LoggerSuite) TestInfoWithLabelsf(c *gc.C) {
writer := &loggo.TestWriter{}
context := loggo.NewContext(loggo.INFO)
err := context.AddWriter("test", writer)
c.Assert(err, gc.IsNil)
logger := context.GetLogger("testing")
logger.SetLogLevel(loggo.INFO)
c.Assert(logger.LogLevel(), gc.Equals, loggo.INFO)
logger.InfoWithLabelsf("no extra labels", nil)
logger.InfoWithLabelsf("with extra labels", map[string]string{
"domain": "status",
"kind": "machine",
"id": "0",
"value": "idle",
})
logs := writer.Log()
c.Assert(logs, gc.HasLen, 2)
c.Check(logs[0].Message, gc.Equals, "no extra labels")
c.Check(logs[0].Labels, gc.HasLen, 0)
c.Check(logs[0].Level, gc.Equals, loggo.INFO)
c.Check(logs[1].Message, gc.Equals, "with extra labels")
c.Check(logs[1].Labels, gc.DeepEquals, loggo.Labels{
"domain": "status", "id": "0", "kind": "machine", "value": "idle"})
c.Check(logs[1].Level, gc.Equals, loggo.INFO)
}
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)
}
func (s *LoggerSuite) TestParent(c *gc.C) {
logger := loggo.GetLogger("a.b.c")
b := logger.Parent()
a := b.Parent()
root := a.Parent()
c.Check(b.Name(), gc.Equals, "a.b")
c.Check(a.Name(), gc.Equals, "a")
c.Check(root.Name(), gc.Equals, "<root>")
c.Check(root.Parent(), gc.DeepEquals, root)
}
func (s *LoggerSuite) TestParentSameContext(c *gc.C) {
ctx := loggo.NewContext(loggo.DEBUG)
logger := ctx.GetLogger("a.b.c")
b := logger.Parent()
c.Check(b, gc.DeepEquals, ctx.GetLogger("a.b"))
c.Check(b, gc.Not(gc.DeepEquals), loggo.GetLogger("a.b"))
}
func (s *LoggerSuite) TestChild(c *gc.C) {
root := loggo.GetLogger("")
a := root.Child("a")
logger := a.Child("b.c")
c.Check(a.Name(), gc.Equals, "a")
c.Check(logger.Name(), gc.Equals, "a.b.c")
c.Check(logger.Parent(), gc.DeepEquals, a.Child("b"))
}
func (s *LoggerSuite) TestChildSameContext(c *gc.C) {
ctx := loggo.NewContext(loggo.DEBUG)
logger := ctx.GetLogger("a")
b := logger.Child("b")
c.Check(b, gc.DeepEquals, ctx.GetLogger("a.b"))
c.Check(b, gc.Not(gc.DeepEquals), loggo.GetLogger("a.b"))
}
func (s *LoggerSuite) TestChildSameContextWithTags(c *gc.C) {
ctx := loggo.NewContext(loggo.DEBUG)
logger := ctx.GetLogger("a", "parent")
b := logger.ChildWithTags("b", "child")
c.Check(ctx.GetAllLoggerTags(), gc.DeepEquals, []string{"child", "parent"})
c.Check(logger.Tags(), gc.DeepEquals, []string{"parent"})
c.Check(b.Tags(), gc.DeepEquals, []string{"child"})
}
func (s *LoggerSuite) TestRoot(c *gc.C) {
logger := loggo.GetLogger("a.b.c")
root := logger.Root()
c.Check(root.Name(), gc.Equals, "<root>")
c.Check(root.Child("a.b.c"), gc.DeepEquals, logger)
}
func (s *LoggerSuite) TestRootSameContext(c *gc.C) {
ctx := loggo.NewContext(loggo.DEBUG)
logger := ctx.GetLogger("a.b.c")
root := logger.Root()
c.Check(root.Name(), gc.Equals, "<root>")
c.Check(root.Child("a.b.c"), gc.DeepEquals, logger)
c.Check(root.Child("a.b.c"), gc.Not(gc.DeepEquals), loggo.GetLogger("a.b.c"))
}