snapshot of https://github.com/RocketChat/Rocket.Chat.git (develop, 2026-09-16; blobs > 131072B omitted)

apps/meteor/tests/unit/server/services/room/getNameForDMs.spec.ts

@@ -0,0 +1,128 @@
+import { expect } from 'chai';
+
+import { getNameForDMs } from '../../../../../server/services/room/getNameForDMs';
+
+describe('getNameForDMs', () => {
+	it('should return empty object when members array is empty', () => {
+		const result = getNameForDMs([]);
+		expect(result).to.deep.equal({});
+	});
+
+	it('should return own name for single member', () => {
+		const members = [{ _id: 'user1', name: 'John Doe', username: 'john' }];
+
+		const result = getNameForDMs(members);
+
+		expect(result).to.deep.equal({
+			user1: {
+				fname: 'John Doe',
+				name: 'john',
+			},
+		});
+	});
+
+	it('should return name map for two members using name field', () => {
+		const members = [
+			{ _id: 'user1', name: 'John Doe', username: 'john' },
+			{ _id: 'user2', name: 'Jane Smith', username: 'jane' },
+		];
+
+		const result = getNameForDMs(members);
+
+		expect(result).to.deep.equal({
+			user1: {
+				fname: 'Jane Smith',
+				name: 'jane',
+			},
+			user2: {
+				fname: 'John Doe',
+				name: 'john',
+			},
+		});
+	});
+
+	it('should fallback to username when name is not available', () => {
+		const members = [
+			{ _id: 'user1', name: '', username: 'john' },
+			{ _id: 'user2', name: '', username: 'jane' },
+		];
+
+		const result = getNameForDMs(members);
+
+		expect(result).to.deep.equal({
+			user1: {
+				fname: 'jane',
+				name: 'jane',
+			},
+			user2: {
+				fname: 'john',
+				name: 'john',
+			},
+		});
+	});
+
+	it('should handle multiple members and sort them alphabetically', () => {
+		const members = [
+			{ _id: 'user3', name: 'Charlie Brown', username: 'charlie' },
+			{ _id: 'user1', name: 'Alice Wonder', username: 'alice' },
+			{ _id: 'user2', name: 'Bob Builder', username: 'bob' },
+		];
+
+		const result = getNameForDMs(members);
+
+		expect(result).to.deep.equal({
+			user1: {
+				fname: 'Bob Builder, Charlie Brown',
+				name: 'bob, charlie',
+			},
+			user2: {
+				fname: 'Alice Wonder, Charlie Brown',
+				name: 'alice, charlie',
+			},
+			user3: {
+				fname: 'Alice Wonder, Bob Builder',
+				name: 'alice, bob',
+			},
+		});
+	});
+
+	it('should handle mix of members with and without names', () => {
+		const members = [
+			{ _id: 'user1', name: 'Alice Wonder', username: 'alice' },
+			{ _id: 'user2', name: '', username: 'bob' },
+		];
+
+		const result = getNameForDMs(members);
+
+		expect(result).to.deep.equal({
+			user1: {
+				fname: 'bob',
+				name: 'bob',
+			},
+			user2: {
+				fname: 'Alice Wonder',
+				name: 'alice',
+			},
+		});
+	});
+
+	it('should sort by username when names are empty', () => {
+		const members = [
+			{ _id: 'user1', name: '', username: 'zebra' },
+			{ _id: 'user2', name: '', username: 'alpha' },
+		];
+
+		const result = getNameForDMs(members);
+
+		expect(result).to.deep.equal({
+			user1: {
+				fname: 'alpha',
+				name: 'alpha',
+			},
+			user2: {
+				fname: 'zebra',
+				name: 'zebra',
+			},
+		});
+	});
+});