Step 123: add run/build commands and UI

editor/tests/step123_test.cpp

@@ -0,0 +1,39 @@
+// Step 123 TDD Test: Run/build command selection
+#include "EditorUtils.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;
+
+    EditorState state;
+    std::string py = state.buildRunCommand("C:\\work\\script.py", "python", false);
+    expect(py.find("python") != std::string::npos, "python runner", passed, failed);
+    expect(py.find("script.py") != std::string::npos, "python path", passed, failed);
+
+    std::string cppRun = state.buildRunCommand("C:\\work\\main.cpp", "cpp", false);
+    expect(cppRun.find("g++") != std::string::npos, "cpp compiler", passed, failed);
+    expect(cppRun.find("&&") != std::string::npos, "cpp run chain", passed, failed);
+#ifdef _WIN32
+    expect(cppRun.find(".exe") != std::string::npos, "cpp exe suffix", passed, failed);
+#endif
+
+    std::string cppBuild = state.buildRunCommand("C:\\work\\main.cpp", "cpp", true);
+    expect(cppBuild.find("&&") == std::string::npos, "cpp build only", passed, failed);
+
+    std::string none = state.buildRunCommand("C:\\work\\main.unknown", "unknown", false);
+    expect(none.empty(), "unsupported language", passed, failed);
+
+    std::cout << "\n=== Step 123 Results: " << passed << " passed, " << failed << " failed ===\n";
+    return failed == 0 ? 0 : 1;
+}