refactor: Move to agent architecture

test/ResponseCleanerTest.cpp

@@ -0,0 +1,64 @@
+// Copyright (C) 2024-2026 Petr Mironychev
+// SPDX-License-Identifier: GPL-3.0-or-later
+// Additional attribution terms under GPLv3 §7(b) apply — see LICENSE
+
+#include <gtest/gtest.h>
+
+#include <ResponseCleaner.hpp>
+
+using QodeAssist::ResponseCleaner;
+
+TEST(ResponseCleanerTest, EmptyInputStaysEmpty)
+{
+    EXPECT_EQ(ResponseCleaner::clean(QString()), QString());
+}
+
+TEST(ResponseCleanerTest, PlainCodeIsUnchanged)
+{
+    const QString code = QStringLiteral("int main() {\n    return 0;\n}");
+    EXPECT_EQ(ResponseCleaner::clean(code), code);
+}
+
+TEST(ResponseCleanerTest, ExtractsFencedCodeWithLanguage)
+{
+    const QString input = QStringLiteral("```cpp\nint main() {}\n```");
+    EXPECT_EQ(ResponseCleaner::clean(input), QStringLiteral("int main() {}"));
+}
+
+TEST(ResponseCleanerTest, ExtractsFencedCodeWithoutLanguage)
+{
+    const QString input = QStringLiteral("```\nfoo\nbar\n```");
+    EXPECT_EQ(ResponseCleaner::clean(input), QStringLiteral("foo\nbar"));
+}
+
+TEST(ResponseCleanerTest, StripsHeresTheExplanationPrefix)
+{
+    const QString input = QStringLiteral("Here's the refactored code:\nint x = 1;");
+    EXPECT_EQ(ResponseCleaner::clean(input), QStringLiteral("int x = 1;"));
+}
+
+TEST(ResponseCleanerTest, StripsHereIsTheExplanationPrefix)
+{
+    const QString input = QStringLiteral("Here is the code:\nint y = 2;");
+    EXPECT_EQ(ResponseCleaner::clean(input), QStringLiteral("int y = 2;"));
+}
+
+TEST(ResponseCleanerTest, StripsBareCodeColonPrefix)
+{
+    const QString input = QStringLiteral("code:\nfoo();");
+    EXPECT_EQ(ResponseCleaner::clean(input), QStringLiteral("foo();"));
+}
+
+TEST(ResponseCleanerTest, TrimsLeadingAndTrailingNewlines)
+{
+    const QString input = QStringLiteral("\n\nhello\n\n");
+    EXPECT_EQ(ResponseCleaner::clean(input), QStringLiteral("hello"));
+}
+
+TEST(ResponseCleanerTest, FencedCodeWithExplanationLineInsideIsExtractedVerbatim)
+{
+    // The fence body is returned verbatim; explanation stripping only inspects
+    // the first lines of the *extracted* code, which here is real code.
+    const QString input = QStringLiteral("```python\nx = 1\ny = 2\n```");
+    EXPECT_EQ(ResponseCleaner::clean(input), QStringLiteral("x = 1\ny = 2"));
+}