[track-changes] Ignore duplicated packs when zipping SL history (#8353)

* [track-changes] Ignore duplicated packs when zipping SL history * Fix incorrect `ObjectId` import in unit tests GitOrigin-RevId: 165fcaa0c7bc57d383d01eedaf6dd3b078aff2aa
2022-06-13 08:03:22 +00:00
parent c2cfa96983
commit bb04841504
5 changed files with 83 additions and 0 deletions
@@ -0,0 +1,55 @@
+const { expect } = require('chai')
+const { ObjectId } = require('mongodb')
+const { packsAreDuplicated } = require('../../../../app/js/util/PackUtils')
+
+const examplePack = {
+  v: 12,
+  meta: {
+    user_id: '525e6018b53de7a920002545',
+    start_ts: 1399130007228,
+    end_ts: 1399130007228,
+  },
+  op: [
+    {
+      p: 2372,
+      d: 'Test for a Subsection',
+    },
+    {
+      p: 2372,
+      i: 'Reviews and review terminology',
+    },
+  ],
+}
+
+const objectId1 = ObjectId('53650ba27e62ca78520d9814')
+const objectId2 = ObjectId('0b5a814a27e678520d92c536')
+
+describe('PackUtils', function () {
+  describe('packsAreDuplicated()', function () {
+    it('returns `false` when any of the packs is undefined', function () {
+      const pack = { ...examplePack, _id: objectId1 }
+      expect(packsAreDuplicated(pack, undefined)).to.be.false
+      expect(packsAreDuplicated(undefined, pack)).to.be.false
+      expect(packsAreDuplicated(undefined, undefined)).to.be.false
+    })
+
+    it('returns `true` for identical packs with same `_id`', function () {
+      const pack1 = { ...examplePack, _id: objectId1 }
+      const pack2 = { ...examplePack, _id: objectId1 }
+      expect(packsAreDuplicated(pack1, pack2)).to.be.true
+    })
+
+    it('returns `true` for identical packs with different `_id`', function () {
+      const pack1 = { ...examplePack, _id: objectId1 }
+      const pack2 = { ...examplePack, _id: objectId2 }
+      expect(packsAreDuplicated(pack1, pack2)).to.be.true
+    })
+
+    it('returns `false` for packs with different anidated properties', function () {
+      const pack1 = { ...examplePack, _id: objectId1 }
+      const pack2 = { ...examplePack, _id: 1 }
+      pack2.op = [...pack2.op, { p: 2800, i: 'char' }]
+      expect(packsAreDuplicated(pack1, pack2)).to.be.false
+    })
+  })
+})