Desktop, Cli, Mobile, Server: Optimise synchronisation by making delta call return whole items

packages/lib/file-api.test.ts

@@ -0,0 +1,73 @@
+import { PaginatedList, RemoteItem, getSupportsDeltaWithItems } from './file-api';
+
+const defaultPaginatedList = (): PaginatedList => {
+	return {
+		items: [],
+		hasMore: false,
+		context: null,
+	};
+};
+
+const defaultItem = (): RemoteItem => {
+	return {
+		id: '',
+	};
+};
+
+describe('file-api', () => {
+
+	test.each([
+		[
+			{
+				...defaultPaginatedList(),
+				items: [],
+			},
+			false,
+		],
+
+		[
+			{
+				...defaultPaginatedList(),
+				items: [
+					{
+						...defaultItem(),
+						path: 'test',
+					},
+				],
+			},
+			false,
+		],
+
+		[
+			{
+				...defaultPaginatedList(),
+				items: [
+					{
+						...defaultItem(),
+						path: 'test',
+						jopItem: null,
+					},
+				],
+			},
+			true,
+		],
+
+		[
+			{
+				...defaultPaginatedList(),
+				items: [
+					{
+						...defaultItem(),
+						path: 'test',
+						jopItem: { something: 'abcd' },
+					},
+				],
+			},
+			true,
+		],
+	])('should tell if the sync target supports delta with items', async (deltaResponse: PaginatedList, expected: boolean) => {
+		const actual = getSupportsDeltaWithItems(deltaResponse);
+		expect(actual).toBe(expected);
+	});
+
+});