Step 117: session persistence

editor/tests/step117_test.cpp

@@ -0,0 +1,44 @@
+// Step 117 TDD Test: Session persistence
+#include "SessionManager.h"
+#include <iostream>
+
+static void expect(bool cond, const std::string& name, int& passed, int& failed) {
+    if (cond) {
+        std::cout << "Test " << (passed + failed + 1) << " PASS: " << name << "\n";
+        ++passed;
+    } else {
+        std::cout << "Test " << (passed + failed + 1) << " FAIL: " << name << "\n";
+        ++failed;
+    }
+}
+
+int main() {
+    int passed = 0;
+    int failed = 0;
+
+    SessionData session;
+    session.workspaceRoot = "C:/repo";
+    session.activePath = "C:/repo/main.py";
+    session.layoutPreset = "JetBrains";
+    session.imguiIni = "[Window][Editor]";
+    SessionBufferState buf;
+    buf.path = "C:/repo/main.py";
+    buf.language = "python";
+    buf.mode = "structured";
+    buf.cursorLine = 12;
+    buf.cursorCol = 5;
+    buf.foldedLines = {1, 10};
+    session.buffers.push_back(buf);
+
+    auto j = sessionToJson(session);
+    SessionData loaded = sessionFromJson(j);
+
+    expect(loaded.workspaceRoot == "C:/repo", "workspace root", passed, failed);
+    expect(loaded.activePath == "C:/repo/main.py", "active path", passed, failed);
+    expect(loaded.layoutPreset == "JetBrains", "layout preset", passed, failed);
+    expect(loaded.buffers.size() == 1 && loaded.buffers[0].cursorLine == 12, "cursor", passed, failed);
+    expect(loaded.buffers[0].foldedLines.size() == 2, "folded lines", passed, failed);
+
+    std::cout << "\n=== Step 117 Results: " << passed << " passed, " << failed << " failed ===\n";
+    return failed == 0 ? 0 : 1;
+}