Timeline: repair oldest/newest metrics if we fetch nothing

ts/test-node/quill/memberRepository_test.ts

@@ -0,0 +1,137 @@
+// Copyright 2020 Signal Messenger, LLC
+// SPDX-License-Identifier: AGPL-3.0-only
+
+import { assert } from 'chai';
+
+import { ConversationType } from '../../state/ducks/conversations';
+import { MemberRepository } from '../../quill/memberRepository';
+
+const memberMahershala: ConversationType = {
+  id: '555444',
+  uuid: 'abcdefg',
+  title: 'Pal',
+  firstName: 'Mahershala',
+  profileName: 'Mr Ali',
+  name: 'Friend',
+  type: 'direct',
+  lastUpdated: Date.now(),
+  markedUnread: false,
+  areWeAdmin: false,
+};
+
+const memberShia: ConversationType = {
+  id: '333222',
+  uuid: 'hijklmno',
+  title: 'Buddy',
+  firstName: 'Shia',
+  profileName: 'Sr LaBeouf',
+  name: 'Duder',
+  type: 'direct',
+  lastUpdated: Date.now(),
+  markedUnread: false,
+  areWeAdmin: false,
+};
+
+const members: Array<ConversationType> = [memberMahershala, memberShia];
+
+const singleMember: ConversationType = {
+  id: '666777',
+  uuid: 'pqrstuv',
+  title: 'The Guy',
+  firstName: 'Jeff',
+  profileName: 'Jr Klaus',
+  name: 'Him',
+  type: 'direct',
+  lastUpdated: Date.now(),
+  markedUnread: false,
+  areWeAdmin: false,
+};
+
+describe('MemberRepository', () => {
+  describe('#updateMembers', () => {
+    it('updates with given members', () => {
+      const memberRepository = new MemberRepository(members);
+      assert.deepEqual(memberRepository.getMembers(), members);
+
+      const updatedMembers = [...members, singleMember];
+      memberRepository.updateMembers(updatedMembers);
+      assert.deepEqual(memberRepository.getMembers(), updatedMembers);
+    });
+  });
+
+  describe('#getMemberById', () => {
+    it('returns undefined when there is no search id', () => {
+      const memberRepository = new MemberRepository(members);
+      assert.isUndefined(memberRepository.getMemberById());
+    });
+
+    it('returns a matched member', () => {
+      const memberRepository = new MemberRepository(members);
+      assert.isDefined(memberRepository.getMemberById('555444'));
+    });
+
+    it('returns undefined when it does not have the member', () => {
+      const memberRepository = new MemberRepository(members);
+      assert.isUndefined(memberRepository.getMemberById('nope'));
+    });
+  });
+
+  describe('#getMemberByUuid', () => {
+    it('returns undefined when there is no search uuid', () => {
+      const memberRepository = new MemberRepository(members);
+      assert.isUndefined(memberRepository.getMemberByUuid());
+    });
+
+    it('returns a matched member', () => {
+      const memberRepository = new MemberRepository(members);
+      assert.isDefined(memberRepository.getMemberByUuid('abcdefg'));
+    });
+
+    it('returns undefined when it does not have the member', () => {
+      const memberRepository = new MemberRepository(members);
+      assert.isUndefined(memberRepository.getMemberByUuid('nope'));
+    });
+  });
+
+  describe('#search', () => {
+    describe('given a prefix-matching string on last name', () => {
+      it('returns the match', () => {
+        const memberRepository = new MemberRepository(members);
+        const results = memberRepository.search('a');
+        assert.deepEqual(results, [memberMahershala]);
+      });
+    });
+
+    describe('given a prefix-matching string on first name', () => {
+      it('returns the match', () => {
+        const memberRepository = new MemberRepository(members);
+        const results = memberRepository.search('ma');
+        assert.deepEqual(results, [memberMahershala]);
+      });
+    });
+
+    describe('given a prefix-matching string on profile name', () => {
+      it('returns the match', () => {
+        const memberRepository = new MemberRepository(members);
+        const results = memberRepository.search('sr');
+        assert.deepEqual(results, [memberShia]);
+      });
+    });
+
+    describe('given a prefix-matching string on title', () => {
+      it('returns the match', () => {
+        const memberRepository = new MemberRepository(members);
+        const results = memberRepository.search('d');
+        assert.deepEqual(results, [memberShia]);
+      });
+    });
+
+    describe('given a match in the middle of a name', () => {
+      it('returns zero matches', () => {
+        const memberRepository = new MemberRepository(members);
+        const results = memberRepository.search('e');
+        assert.deepEqual(results, []);
+      });
+    });
+  });
+});