chore: Add tests for LLMClientInterface (#131)

test/MockRequestHandler.hpp

@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2025 Povilas Kanapickas <povilas@radix.lt>
+ *
+ * This file is part of QodeAssist.
+ *
+ * QodeAssist is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * QodeAssist is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with QodeAssist. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <llmcore/RequestHandlerBase.hpp>
+
+namespace QodeAssist::LLMCore {
+
+class MockRequestHandler : public RequestHandlerBase
+{
+public:
+    explicit MockRequestHandler(QObject *parent = nullptr)
+        : RequestHandlerBase(parent)
+        , m_fakeCompletion("")
+    {}
+
+    void setFakeCompletion(const QString &completion) { m_fakeCompletion = completion; }
+
+    void sendLLMRequest(const LLMConfig &config, const QJsonObject &request) override
+    {
+        m_receivedRequests.append(config);
+
+        emit completionReceived(m_fakeCompletion, request, true);
+
+        QString requestId = request["id"].toString();
+        emit requestFinished(requestId, true, QString());
+    }
+
+    bool cancelRequest(const QString &id) override
+    {
+        emit requestCancelled(id);
+        return true;
+    }
+
+    const QVector<LLMConfig> &receivedRequests() const { return m_receivedRequests; }
+
+private:
+    QString m_fakeCompletion;
+    QVector<LLMConfig> m_receivedRequests;
+};
+
+} // namespace QodeAssist::LLMCore