refactor: decouple tests

tests/ClaudeCacheControlTest.hpp

@@ -0,0 +1,33 @@
+// Copyright (C) 2026 Petr Mironychev
+// SPDX-License-Identifier: GPL-3.0-or-later
+// Additional attribution terms under GPLv3 §7(b) apply — see LICENSE
+
+#pragma once
+
+#include <QJsonObject>
+#include <QObject>
+
+namespace QodeAssist {
+
+class ClaudeCacheControlTest final : public QObject
+{
+    Q_OBJECT
+
+private slots:
+    void testCacheControlBreakpointWithoutExtendedTtl();
+    void testCacheControlBreakpointWithExtendedTtl();
+    void testCacheControlSystemAsStringWrappedIntoArray();
+    void testCacheControlEmptySystemStringIsNotWrapped();
+    void testCacheControlSystemAsArrayMarksLastBlock();
+    void testCacheControlToolsLastEntryGetsCacheControl();
+    void testCacheControlSingleMessageHistorySkipped();
+    void testCacheControlHistoryBreakpointOnSecondToLastMessage();
+    void testCacheControlHistoryArrayContentMarksLastBlock();
+    void testCacheControlNoSystemNoToolsNoMessagesIsNoop();
+    void testCacheControlEmptyToolsArrayIsNoop();
+
+private:
+    static QJsonObject expectedEphemeral(bool extendedTtl);
+};
+
+} // namespace QodeAssist