refactor: drop superorder from metas (#44422)

* refactor: create superOrder from superblock

* chore: drop superOrders from meta

* fix: return null for 'certifications'

* fix: only set superOrder if it is needed

* fix(tests): remove filter from order tests

* test: use getSuperOrder, since superOrder has gone

* test: ignore certificates

* fix: getSuperOrder throw for 'certifications'

* test: remove certificate special case

It wasn't necessary, anyway (it had never been working because I put
certificate not certification)

Co-authored-by: Nicholas Carrigan <nhcarrigan@gmail.com>

curriculum/utils.js

@@ -16,3 +16,32 @@ exports.testedLang = function testedLang() {
     throw Error('LOCALE must be set for testing');
   }
 };
+
+// TODO: migrate to TS and use the SuperBlocks enum from
+// config/certification-settings.ts
+
+const superBlockToOrder = {
+  'responsive-web-design': 0,
+  'javascript-algorithms-and-data-structures': 1,
+  'front-end-development-libraries': 2,
+  'data-visualization': 3,
+  'relational-databases': 4,
+  'back-end-development-and-apis': 5,
+  'quality-assurance': 6,
+  'scientific-computing-with-python': 7,
+  'data-analysis-with-python': 8,
+  'information-security': 9,
+  'machine-learning-with-python': 10,
+  'coding-interview-prep': 11
+};
+
+function getSuperOrder(superblock, { isLegacy } = { isLegacy: false }) {
+  if (typeof superblock !== 'string')
+    throw Error('superblock must be a string');
+  const order = superBlockToOrder[superblock];
+  if (typeof order === 'undefined')
+    throw Error(`${superblock} is not a valid superblock`);
+  return isLegacy ? order + 12 : order;
+}
+
+exports.getSuperOrder = getSuperOrder;