Ported refPush and added tests

test/common/libs/refPush.js

@@ -0,0 +1,53 @@
+import shared from '../../../common';
+import { v4 as generateUUID } from 'uuid';
+
+describe('refPush', () => {
+  it('it hashes one object into another by its id', () => {
+    let referenceObject = {};
+    let objectToHash = {
+      a: 1,
+      id: generateUUID(),
+    };
+
+    shared.refPush(referenceObject, objectToHash);
+
+    expect(referenceObject[objectToHash.id].a).to.equal(objectToHash.a);
+    expect(referenceObject[objectToHash.id].id).to.equal(objectToHash.id);
+    expect(referenceObject[objectToHash.id].sort).to.equal(0);
+  });
+
+  it('it hashes one object into another by a uuid when object does not have an id', () => {
+    let referenceObject = {};
+    let objectToHash = {
+      a: 1,
+    };
+
+    shared.refPush(referenceObject, objectToHash);
+
+    let hashedObject = _.find(referenceObject, (hashedItem) => {
+      return objectToHash.a === hashedItem.a;
+    });
+
+    expect(hashedObject.a).to.equal(objectToHash.a);
+    expect(hashedObject.id).to.equal(objectToHash.id);
+    expect(hashedObject.sort).to.equal(0);
+  });
+
+  it('it hashes one object into another by a id and gives it the highest sort value', () => {
+    let referenceObject = {};
+    referenceObject[generateUUID()] = { b: 2, sort: 1 };
+    let objectToHash = {
+      a: 1,
+    };
+
+    shared.refPush(referenceObject, objectToHash);
+
+    let hashedObject = _.find(referenceObject, (hashedItem) => {
+      return objectToHash.a === hashedItem.a;
+    });
+
+    expect(hashedObject.a).to.equal(objectToHash.a);
+    expect(hashedObject.id).to.equal(objectToHash.id);
+    expect(hashedObject.sort).to.equal(2);
+  });
+});