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package trace
import (
"bytes"
"io"
"log"
"testing"
)
func TestMain(m *testing.M) {
defer SetLogger(newLogger())
if code := m.Run(); code != 0 {
panic(code)
}
}
func setUpTest(t testing.TB, buf *bytes.Buffer) {
t.Cleanup(func() {
if buf != nil {
buf.Reset()
}
SetTarget(0)
})
w := io.Discard
if buf != nil {
w = buf
}
SetLogger(log.New(w, "", 0))
}
func TestEmpty(t *testing.T) {
var buf bytes.Buffer
setUpTest(t, &buf)
General.Print("test")
if buf.String() != "" {
t.Error("expected empty string")
}
}
func TestOneTarget(t *testing.T) {
var buf bytes.Buffer
setUpTest(t, &buf)
SetTarget(General)
General.Print("test")
if buf.String() != "test\n" {
t.Error("expected 'test'")
}
}
func TestMultipleTargets(t *testing.T) {
var buf bytes.Buffer
setUpTest(t, &buf)
SetTarget(General | Packet)
General.Print("a")
Packet.Print("b")
if buf.String() != "a\nb\n" {
t.Error("expected 'a\nb\n'")
}
}
func TestPrintf(t *testing.T) {
var buf bytes.Buffer
setUpTest(t, &buf)
SetTarget(General)
General.Printf("a %d", 1)
if buf.String() != "a 1\n" {
t.Error("expected 'a 1\n'")
}
}
func TestDisabledMultipleTargets(t *testing.T) {
var buf bytes.Buffer
setUpTest(t, &buf)
SetTarget(General)
General.Print("a")
Packet.Print("b")
if buf.String() != "a\n" {
t.Error("expected 'a\n'")
}
}
func BenchmarkDisabledTarget(b *testing.B) {
setUpTest(b, nil)
for i := 0; i < b.N; i++ {
General.Print("test")
}
}
func BenchmarkEnabledTarget(b *testing.B) {
setUpTest(b, nil)
SetTarget(General)
for i := 0; i < b.N; i++ {
General.Print("test")
}
}
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