Step 146: add Emacs buffer bridge

editor/tests/step146_test.cpp

@@ -0,0 +1,38 @@
+// Step 146 TDD Test: Emacs-Whetstone bridge
+#include "EmacsIntegration.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;
+
+    MockEmacsConnection mock;
+    std::string path = "C:/tmp/example.el";
+
+    std::string text = mock.getBufferText(path);
+    expect(text == "mock-buffer", "buffer text pulled", passed, failed);
+
+    bool setOk = mock.setBufferText(path, "(message \"hi\")");
+    expect(setOk, "buffer text pushed", passed, failed);
+    expect(mock.getLastSentCommand().find("erase-buffer") != std::string::npos,
+           "replace buffer command", passed, failed);
+
+    bool frameOk = mock.openFileInEmacsFrame(path);
+    expect(frameOk, "open emacs frame", passed, failed);
+    expect(mock.getLastRunCommand().find("emacsclient") != std::string::npos,
+           "emacsclient command", passed, failed);
+
+    std::cout << "\n=== Step 146 Results: " << passed << " passed, "
+              << failed << " failed ===\n";
+    return failed == 0 ? 0 : 1;
+}