fix(diary): skip HideOnTTY records only on a terminal console, also with forced color (IN-01, quick-261028-rqd)

modules/diary/console_internal_test.go

@@ -0,0 +1,36 @@
+package diary
+
+import (
+	"bytes"
+	"context"
+	"log/slog"
+	"strings"
+	"sync/atomic"
+	"testing"
+	"time"
+
+	"github.com/charmbracelet/colorprofile"
+)
+
+// TestConsoleHideOnTTYTerminal (IN-01): the styled console handler skips a
+// HideOnTTY record when its writer is a terminal, and writes ordinary
+// records.
+func TestConsoleHideOnTTYTerminal(t *testing.T) {
+	var buf bytes.Buffer
+	h := newConsoleHandler(&buf, ConsoleOptions{Profile: colorprofile.ANSI}, new(atomic.Bool))
+	h.terminal = true
+	hidden := slog.NewRecord(time.Time{}, slog.LevelInfo, "hidden summary", 0)
+	if err := h.Handle(HideOnTTY(context.Background()), hidden); err != nil {
+		t.Fatal(err)
+	}
+	shown := slog.NewRecord(time.Time{}, slog.LevelInfo, "shown line", 0)
+	if err := h.Handle(context.Background(), shown); err != nil {
+		t.Fatal(err)
+	}
+	if strings.Contains(buf.String(), "hidden summary") {
+		t.Errorf("terminal console shows a HideOnTTY record:\n%s", buf.String())
+	}
+	if !strings.Contains(buf.String(), "shown line") {
+		t.Errorf("terminal console lacks the ordinary record:\n%s", buf.String())
+	}
+}