update stack trace limit to use a variable for ease of configuring + tests.

Author: joeybloggs

entry.go

@@ -206,8 +206,8 @@ func (e *Entry) WithFields(fields ...Field) LeveledLogger {
 func (e *Entry) StackTrace() LeveledLogger {
 	trace := make([]byte, 1<<16)
 	n := runtime.Stack(trace, true)
-	if n > 7000 {
-		n = 7000
+	if n > stackTraceLimit {
+		n = stackTraceLimit
 	}
 	e.Fields = append(e.Fields, F("stack trace", string(trace[:n])+"\n"))
 	return e

log.go

@@ -45,10 +45,11 @@ const (
 
 // Logger is the default instance of the log package
 var (
-	once      sync.Once
-	Logger    *logger
-	exitFunc  = os.Exit
-	skipLevel = 2
+	once            sync.Once
+	Logger          *logger
+	exitFunc        = os.Exit
+	skipLevel       = 2
+	stackTraceLimit = 7000
 )
 
 func init() {
@@ -255,8 +256,8 @@ func (l *logger) WithFields(fields ...Field) LeveledLogger {
 func (l *logger) StackTrace() LeveledLogger {
 	trace := make([]byte, 1<<16)
 	n := runtime.Stack(trace, true)
-	if n > 7000 {
-		n = 7000
+	if n > stackTraceLimit {
+		n = stackTraceLimit
 	}
 	return newEntry(DebugLevel, "", []Field{F("stack trace", string(trace[:n])+"\n")}, skipLevel)
 }

log_test.go

@@ -21,7 +21,7 @@ import (
 //
 
 func TestConsoleLogger1(t *testing.T) {
-
+	stackTraceLimit = 1000
 	tests := getLogTests1()
 
 	buff := new(bytes.Buffer)

pkg.go

@@ -182,8 +182,8 @@ func WithFields(fields ...Field) LeveledLogger {
 func StackTrace() LeveledLogger {
 	trace := make([]byte, 1<<16)
 	n := runtime.Stack(trace, true)
-	if n > 7000 {
-		n = 7000
+	if n > stackTraceLimit {
+		n = stackTraceLimit
 	}
 	return newEntry(DebugLevel, "", []Field{F("stack trace", string(trace[:n])+"\n")}, skipLevel)
 }

pkg_test.go

@@ -22,7 +22,7 @@ import (
 //
 
 func TestConsoleLogger2(t *testing.T) {
-
+	stackTraceLimit = 1000
 	tests := getLogTests()
 	buff := new(bytes.Buffer)