Pull out animal content into separate files (#7989)

* Pull out animal content into separate files

* Correct variable names

* Add tests for stable, eggs, and hatching potions content

* Add content test back into npm test

test/content/hatching-potions.test.js

@@ -0,0 +1,31 @@
+import {
+  each,
+} from 'lodash';
+import {
+  expectValidTranslationString,
+} from '../helpers/content.helper';
+
+import hatchingPotions from '../../common/script/content/hatching-potions';
+
+describe('hatchingPotions', ()  => {
+  describe('all', ()  => {
+    it('is a combination of drop and premium potions', () => {
+      let dropNumber = Object.keys(hatchingPotions.drops).length;
+      let premiumNumber = Object.keys(hatchingPotions.premium).length;
+      let allNumber = Object.keys(hatchingPotions.all).length;
+
+      expect(allNumber).to.be.greaterThan(0);
+      expect(allNumber).to.equal(dropNumber + premiumNumber);
+    });
+
+    it('contains basic information about each potion', () => {
+      each(hatchingPotions.all, (potion, key) => {
+        expectValidTranslationString(potion.text);
+        expectValidTranslationString(potion.notes);
+        expect(potion.canBuy).to.be.a('function');
+        expect(potion.value).to.be.a('number');
+        expect(potion.key).to.equal(key);
+      });
+    });
+  });
+});