feat: update tests

feat: update tests

feat: update tests

packages/es-mapping-generator/test/common.ts

@@ -0,0 +1,19 @@
+import path from 'path';
+import {readdirSync, statSync} from 'fs';
+
+/**
+ * Expand a path to a list of all files deeply contained in it
+ */
+export function expandPathToFilesSync(sourcePath: string, accept: (fileName: string) => boolean): string[] {
+  const fullPath = path.resolve(sourcePath);
+  const directory = statSync(fullPath);
+
+  return directory.isDirectory()
+    ? // eslint-disable-next-line unicorn/prefer-spread
+      ([] as string[]).concat(
+        ...readdirSync(fullPath).map(fragment =>
+          expandPathToFilesSync(path.resolve(sourcePath, fragment), accept),
+        ),
+      )
+    : [fullPath].filter(accept);
+}