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logger_test.go
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logger_test.go
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package sloghighlight_test
import (
"context"
"log/slog"
"math/rand"
"runtime"
"testing"
"time"
sloghighlight "github.com/ngoldack/slog-highlight"
"github.com/stretchr/testify/require"
)
func TestNewHighlightHandler(t *testing.T) {
handler := sloghighlight.NewHighlightHandler()
require.NotNil(t, handler, "handler should not be nil")
}
func TestEnabled(t *testing.T) {
ctx := context.Background()
handler := sloghighlight.NewHighlightHandler(
sloghighlight.WithLevel(slog.LevelWarn),
)
require.NotNil(t, handler, "handler should not be nil")
levels := map[slog.Leveler]bool{
slog.LevelDebug: false,
slog.LevelInfo: false,
slog.LevelWarn: true,
slog.LevelError: true,
}
for level, enabled := range levels {
if !enabled {
require.False(t, handler.Enabled(ctx, level.Level()), "handler should not be enabled")
continue
}
require.Equal(t, enabled, handler.Enabled(ctx, level.Level()), "handler should be enabled")
}
}
func TestHandle(t *testing.T) {
ctx := context.Background()
handler := sloghighlight.NewHighlightHandler()
require.NotNil(t, handler, "handler should not be nil")
type userKey string
uk := userKey("user")
uv := struct {
user string
}{
user: "test",
}
pcs := createPCs(t)
records := make([]slog.Record, 0, len(pcs))
for _, pc := range pcs {
r := slog.NewRecord(time.Now(), slog.LevelDebug, "Hello Debug!", pc)
r.AddAttrs(slog.Attr{
Key: "test",
Value: slog.StringValue("test"),
})
switch rand.Intn(4) % 4 {
case 0:
r.Level = slog.LevelDebug
records = append(records, r)
continue
case 1:
r.Level = slog.LevelInfo
records = append(records, r)
continue
case 2:
r.Level = slog.LevelWarn
records = append(records, r)
continue
case 3:
r.Level = slog.LevelError
records = append(records, r)
continue
}
}
ctx = context.WithValue(ctx, uk, uv)
for _, r := range records {
err := handler.Handle(ctx, r)
require.NoError(t, err, "handler should not return an error")
}
}
func TestWithGroups(t *testing.T) {
handler := sloghighlight.NewHighlightHandler()
handler = handler.WithGroup("test")
require.NotNil(t, handler, "handler should not be nil")
}
func TestWithAttrs(t *testing.T) {
handler := sloghighlight.NewHighlightHandler()
handler = handler.WithAttrs([]slog.Attr{
{
Key: "test",
Value: slog.StringValue("test"),
},
})
require.NotNil(t, handler, "handler should not be nil")
}
func createPCs(t *testing.T) []uintptr {
pc := make([]uintptr, 100)
n := runtime.Callers(0, pc)
if n == 0 {
t.Fatal("could not get PC")
}
return pc[:n]
}