Reset master to testing content

internal/atspi/foreground_native_test.go

@@ -0,0 +1,60 @@
+// Copyright (c) 2026 Storm Dragon
+// Authors: Storm Dragon, Angus Kola
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+package atspi
+
+import (
+	"context"
+	"os"
+	"os/exec"
+	"strconv"
+	"testing"
+	"time"
+)
+
+// The GTK provider publishes its host PID over AT-SPI, but its X11 property
+// deliberately contains a different PID, as with a Flatpak PID namespace.
+func TestNativeForegroundProcessIdentity(t *testing.T) {
+	if os.Getenv("CTHULHU_FOREGROUND_PID") != "1" {
+		t.Skip("requires isolated GTK/X11 process identity fixture")
+	}
+	pid, err := strconv.Atoi(os.Getenv("CTHULHU_TREE_PID"))
+	if err != nil {
+		t.Fatal(err)
+	}
+	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+	defer cancel()
+	adapter := New()
+	if err := adapter.Start(ctx); err != nil {
+		t.Fatal(err)
+	}
+	defer adapter.Stop(context.Background())
+	if _, err := adapter.CaptureDesktop(ctx); err != nil {
+		t.Fatal(err)
+	}
+	if foreground := adapter.Foreground(); foreground.Client.PID != pid {
+		t.Fatalf("foreground PID = %d; want host provider PID %d (window property is 252)", foreground.Client.PID, pid)
+	}
+	if err := exec.CommandContext(ctx, "xdotool", "key", "F6").Run(); err != nil {
+		t.Fatal(err)
+	}
+	for {
+		select {
+		case event := <-adapter.Events():
+			if event.Type != FocusedStateEvent || event.Detail1 == 0 || event.Source.Name != "Caret review probe" {
+				continue
+			}
+			wantMismatch := os.Getenv("CTHULHU_FOREGROUND_PROXY_OTHER") == "1"
+			if event.ForegroundMismatch != wantMismatch || event.Foreground.Client.PID != pid || !event.Window.Valid() {
+				t.Fatalf("foreground mismatch = %v; want %v: %+v", event.ForegroundMismatch, wantMismatch, event)
+			}
+			if os.Getenv("CTHULHU_FOREGROUND_PROXY") == "1" && event.Source.ApplicationProcess != "xdg-dbus-proxy" {
+				t.Fatalf("fixture did not use a separate D-Bus proxy: %q", event.Source.ApplicationProcess)
+			}
+			return
+		case <-ctx.Done():
+			t.Fatal("foreground control focus event missing")
+		}
+	}
+}