From c7a33dc5de7efe87c53ee9598ab7b73a508f0be7 Mon Sep 17 00:00:00 2001
From: Giedrius Dubinskas <gd@uber.com>
Date: Mon, 2 Oct 2017 19:38:29 +0300
Subject: [PATCH] Add Trace level logging

---
 exported.go    | 4 ++--
 logrus.go      | 3 ++-
 logrus_test.go | 9 +++++++++
 3 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/exported.go b/exported.go
index fb261aa..b9f1c9d 100644
--- a/exported.go
+++ b/exported.go
@@ -122,7 +122,7 @@ func Fatal(args ...interface{}) {
 	std.Fatal(args...)
 }
 
-// Tracef logs a message at level Debug on the standard logger.
+// Tracef logs a message at level Trace on the standard logger.
 func Tracef(format string, args ...interface{}) {
 	std.Tracef(format, args...)
 }
@@ -167,7 +167,7 @@ func Fatalf(format string, args ...interface{}) {
 	std.Fatalf(format, args...)
 }
 
-// Traceln logs a message at level Debug on the standard logger.
+// Traceln logs a message at level Trace on the standard logger.
 func Traceln(args ...interface{}) {
 	std.Traceln(args...)
 }
diff --git a/logrus.go b/logrus.go
index 601d5e0..d657c41 100644
--- a/logrus.go
+++ b/logrus.go
@@ -87,7 +87,8 @@ const (
 	InfoLevel
 	// DebugLevel level. Usually only enabled when debugging. Very verbose logging.
 	DebugLevel
-	// TraceLevel level. Usually only enabled when debugging. Very verbose logging.  Usually reserved for message traces
+	// TraceLevel level. Usually only enabled when debugging. Very verbose logging.
+	// Usually reserved for message traces.
 	TraceLevel
 )
 
diff --git a/logrus_test.go b/logrus_test.go
index 97d15d7..210feef 100644
--- a/logrus_test.go
+++ b/logrus_test.go
@@ -303,6 +303,7 @@ func TestDoubleLoggingDoesntPrefixPreviousFields(t *testing.T) {
 }
 
 func TestConvertLevelToString(t *testing.T) {
+	assert.Equal(t, "trace", TraceLevel.String())
 	assert.Equal(t, "debug", DebugLevel.String())
 	assert.Equal(t, "info", InfoLevel.String())
 	assert.Equal(t, "warning", WarnLevel.String())
@@ -368,6 +369,14 @@ func TestParseLevel(t *testing.T) {
 	assert.Nil(t, err)
 	assert.Equal(t, DebugLevel, l)
 
+	l, err = ParseLevel("trace")
+	assert.Nil(t, err)
+	assert.Equal(t, TraceLevel, l)
+
+	l, err = ParseLevel("TRACE")
+	assert.Nil(t, err)
+	assert.Equal(t, TraceLevel, l)
+
 	l, err = ParseLevel("invalid")
 	assert.Equal(t, "not a valid logrus Level: \"invalid\"", err.Error())
 }