General source code refactoring

scripts/test.cjs

@@ -0,0 +1,13 @@
+const fs = require("node:fs");
+const path = require("node:path");
+const { spawnSync } = require("node:child_process");
+
+const root = path.resolve(__dirname, "..");
+const files = fs.readdirSync(path.join(root, "tests")).filter(name => name.endsWith(".test.cjs")).sort();
+let failed = false;
+for (const file of files) {
+  const result = spawnSync(process.execPath, [path.join(root, "tests", file)], { cwd: root, stdio: "inherit" });
+  if (result.error) console.error(result.error.message);
+  if (result.status !== 0) failed = true;
+}
+process.exitCode = failed ? 1 : 0;