Support for creating New Groups

ts/test-node/components/leftPane/LeftPaneSetGroupMetadataHelper_test.ts

@@ -0,0 +1,85 @@
+// Copyright 2021 Signal Messenger, LLC
+// SPDX-License-Identifier: AGPL-3.0-only
+
+import { assert } from 'chai';
+import { v4 as uuid } from 'uuid';
+import { RowType } from '../../../components/ConversationList';
+
+import { LeftPaneSetGroupMetadataHelper } from '../../../components/leftPane/LeftPaneSetGroupMetadataHelper';
+
+describe('LeftPaneSetGroupMetadataHelper', () => {
+  const fakeContact = () => ({
+    id: uuid(),
+    title: uuid(),
+    type: 'direct' as const,
+  });
+
+  describe('getRowCount', () => {
+    it('returns 0 if there are no contacts', () => {
+      assert.strictEqual(
+        new LeftPaneSetGroupMetadataHelper({
+          groupAvatar: undefined,
+          groupName: '',
+          hasError: false,
+          isCreating: false,
+          selectedContacts: [],
+        }).getRowCount(),
+        0
+      );
+    });
+
+    it('returns the number of candidate contacts + 2 if there are any', () => {
+      assert.strictEqual(
+        new LeftPaneSetGroupMetadataHelper({
+          groupAvatar: undefined,
+          groupName: '',
+          hasError: false,
+          isCreating: false,
+          selectedContacts: [fakeContact(), fakeContact()],
+        }).getRowCount(),
+        4
+      );
+    });
+  });
+
+  describe('getRow', () => {
+    it('returns undefined if there are no contacts', () => {
+      assert.isUndefined(
+        new LeftPaneSetGroupMetadataHelper({
+          groupAvatar: undefined,
+          groupName: '',
+          hasError: false,
+          isCreating: false,
+          selectedContacts: [],
+        }).getRow(0)
+      );
+    });
+
+    it('returns a header, then the contacts, then a blank space if there are contacts', () => {
+      const selectedContacts = [fakeContact(), fakeContact()];
+      const helper = new LeftPaneSetGroupMetadataHelper({
+        groupAvatar: undefined,
+        groupName: '',
+        hasError: false,
+        isCreating: false,
+        selectedContacts,
+      });
+
+      assert.deepEqual(helper.getRow(0), {
+        type: RowType.Header,
+        i18nKey: 'setGroupMetadata__members-header',
+      });
+      assert.deepEqual(helper.getRow(1), {
+        type: RowType.Contact,
+        contact: selectedContacts[0],
+        isClickable: false,
+      });
+      assert.deepEqual(helper.getRow(2), {
+        type: RowType.Contact,
+        contact: selectedContacts[1],
+        isClickable: false,
+      });
+      assert.deepEqual(helper.getRow(3), { type: RowType.Blank });
+    });
+  });
+});