Support for creating New Groups

ts/test-both/groups/limits_test.ts

@@ -0,0 +1,67 @@
+// Copyright 2021 Signal Messenger, LLC
+// SPDX-License-Identifier: AGPL-3.0-only
+
+import { assert } from 'chai';
+import * as sinon from 'sinon';
+import * as remoteConfig from '../../RemoteConfig';
+
+import {
+  getGroupSizeRecommendedLimit,
+  getGroupSizeHardLimit,
+} from '../../groups/limits';
+
+describe('group limit utilities', () => {
+  let sinonSandbox: sinon.SinonSandbox;
+  let getRecommendedLimitStub: sinon.SinonStub;
+  let getHardLimitStub: sinon.SinonStub;
+
+  beforeEach(() => {
+    sinonSandbox = sinon.createSandbox();
+
+    const getValueStub = sinonSandbox.stub(remoteConfig, 'getValue');
+    getRecommendedLimitStub = getValueStub.withArgs(
+      'global.groupsv2.maxGroupSize'
+    );
+    getHardLimitStub = getValueStub.withArgs(
+      'global.groupsv2.groupSizeHardLimit'
+    );
+  });
+
+  afterEach(() => {
+    sinonSandbox.restore();
+  });
+
+  describe('getGroupSizeRecommendedLimit', () => {
+    it('throws if the value in remote config is not defined', () => {
+      getRecommendedLimitStub.returns(undefined);
+      assert.throws(getGroupSizeRecommendedLimit);
+    });
+
+    it('throws if the value in remote config is not a parseable integer', () => {
+      getRecommendedLimitStub.returns('uh oh');
+      assert.throws(getGroupSizeRecommendedLimit);
+    });
+
+    it('returns the value in remote config, parsed as an integer', () => {
+      getRecommendedLimitStub.returns('123');
+      assert.strictEqual(getGroupSizeRecommendedLimit(), 123);
+    });
+  });
+
+  describe('getGroupSizeHardLimit', () => {
+    it('throws if the value in remote config is not defined', () => {
+      getHardLimitStub.returns(undefined);
+      assert.throws(getGroupSizeHardLimit);
+    });
+
+    it('throws if the value in remote config is not a parseable integer', () => {
+      getHardLimitStub.returns('uh oh');
+      assert.throws(getGroupSizeHardLimit);
+    });
+
+    it('returns the value in remote config, parsed as an integer', () => {
+      getHardLimitStub.returns('123');
+      assert.strictEqual(getGroupSizeHardLimit(), 123);
+    });
+  });
+});