Step 221: basic evaluation tasks

editor/tests/step221_test.cpp

@@ -0,0 +1,20 @@
+// Step 221: Basic evaluation task suite.
+
+#include <cassert>
+#include <filesystem>
+#include <string>
+
+int main() {
+    std::filesystem::path dir = "../eval/basic";
+    int count = 0;
+    if (std::filesystem::exists(dir)) {
+        for (const auto& entry : std::filesystem::directory_iterator(dir)) {
+            if (entry.is_regular_file() && entry.path().extension() == ".json") {
+                count++;
+            }
+        }
+    }
+    assert(count == 30);
+    printf("step221_test: all assertions passed\n");
+    return 0;
+}