feat: refactor and test tools steps utilities (#42693)

tools/challenge-helper-scripts/helpers/get-project-meta-path.js

@@ -0,0 +1,22 @@
+const path = require('path');
+
+// Returns the path of the meta file associated to arguments provided.
+const getProjectMetaPath = (curriculumPath, projectName) => {
+  if (typeof curriculumPath !== 'string' || typeof projectName !== 'string') {
+    throw `${curriculumPath} and ${projectName} should be of type string`;
+  }
+
+  if (!projectName) {
+    throw `${projectName} can't be an empty string`;
+  }
+
+  return path.resolve(
+    curriculumPath,
+    'challenges',
+    '_meta',
+    projectName,
+    'meta.json'
+  );
+};
+
+exports.getProjectMetaPath = getProjectMetaPath;