refactor: decouple tests

tests/CompletionTestSupport.hpp

@@ -0,0 +1,61 @@
+// 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 <QString>
+#include <QStringList>
+
+#include "context/IDocumentReader.hpp"
+#include "logger/IRequestPerformanceLogger.hpp"
+#include "providers/IProviderRegistry.hpp"
+#include "providers/Provider.hpp"
+
+QT_BEGIN_NAMESPACE
+class QTextDocument;
+QT_END_NAMESPACE
+
+namespace QodeAssist {
+
+class FakeCompletionRegistry : public Providers::IProviderRegistry
+{
+public:
+    explicit FakeCompletionRegistry(Providers::Provider *provider)
+        : m_provider(provider)
+    {}
+
+    Providers::Provider *getProviderByName(const QString &) override { return m_provider; }
+    QStringList providersNames() const override
+    {
+        return m_provider ? QStringList{m_provider->name()} : QStringList{};
+    }
+
+    void setProvider(Providers::Provider *provider) { m_provider = provider; }
+
+private:
+    Providers::Provider *m_provider = nullptr;
+};
+
+class FakeCompletionDocumentReader : public Context::IDocumentReader
+{
+public:
+    Context::DocumentInfo readDocument(const QString &path) const override
+    {
+        if (!document)
+            return {};
+        return {document, QStringLiteral("text/x-c++src"), path};
+    }
+
+    QTextDocument *document = nullptr;
+};
+
+class FakePerformanceLogger : public IRequestPerformanceLogger
+{
+public:
+    void startTimeMeasurement(const QString &) override {}
+    void endTimeMeasurement(const QString &) override {}
+    void logPerformance(const QString &, qint64) override {}
+};
+
+} // namespace QodeAssist