[PM-14360] Import Batching (#703)

* initial implementation

* next iteration

* clean up

* cleanup

* fix test

* cleanup

* rename services, refactor, fix test logic

* fix DI

* update comment

* update comment

* resolve merge conflict

* register dependencies out of jslib, more cleanup

* fix failing test in build

* fix type error

* try fixing test error

* remove async from test setup

* attempt to fix test

* fix text

* fix test

* add ts-expect-error comment

* cleanup

---------

Co-authored-by: bnagawiecki <107435978+bnagawiecki@users.noreply.github.com>

src/services/batch-requests-builder.spec.ts

@@ -0,0 +1,47 @@
+import { GroupEntry } from "@/src/models/groupEntry";
+import { UserEntry } from "@/src/models/userEntry";
+
+import { BatchRequestBuilder } from "./batch-request-builder";
+import { SingleRequestBuilder } from "./single-request-builder";
+
+describe("BatchRequestBuilder", () => {
+  let batchRequestBuilder: BatchRequestBuilder;
+  let singleRequestBuilder: SingleRequestBuilder;
+
+  function userSimulator(userCount: number) {
+    return Array(userCount).fill(new UserEntry());
+  }
+
+  function groupSimulator(groupCount: number) {
+    return Array(groupCount).fill(new GroupEntry());
+  }
+
+  beforeEach(async () => {
+    batchRequestBuilder = new BatchRequestBuilder();
+    singleRequestBuilder = new SingleRequestBuilder();
+  });
+
+  it("BatchRequestBuilder batches requests for > 2000 users", () => {
+    const mockGroups = groupSimulator(11000);
+    const mockUsers = userSimulator(11000);
+
+    const requests = batchRequestBuilder.buildRequest(mockGroups, mockUsers, true, true);
+
+    expect(requests.length).toEqual(12);
+  });
+
+  it("SingleRequestBuilder returns single request for 200 users", () => {
+    const mockGroups = groupSimulator(200);
+    const mockUsers = userSimulator(200);
+
+    const requests = singleRequestBuilder.buildRequest(mockGroups, mockUsers, true, true);
+
+    expect(requests.length).toEqual(1);
+  });
+
+  it("BatchRequestBuilder retuns an empty array when there are no users or groups", () => {
+    const requests = batchRequestBuilder.buildRequest([], [], true, true);
+
+    expect(requests).toEqual([]);
+  });
+});