1 files changed, 100 insertions, 0 deletions
diff --git a/apps/files/src/services/SortingService.spec.ts b/apps/files/src/services/SortingService.spec.ts
new file mode 100644
index 00000000000..5d20c43ed0a
--- /dev/null
+++ b/apps/files/src/services/SortingService.spec.ts
@@ -0,0 +1,100 @@
+/**
+ * SPDX-FileCopyrightText: 2024 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+import { describe, expect } from '@jest/globals'
+import { orderBy } from './SortingService'
+
+describe('SortingService', () => {
+	test('By default the identify and ascending order is used', () => {
+		const array = ['a', 'z', 'b']
+		expect(orderBy(array)).toEqual(['a', 'b', 'z'])
+	})
+
+	test('Use identifiy but descending', () => {
+		const array = ['a', 'z', 'b']
+		expect(orderBy(array, undefined, ['desc'])).toEqual(['z', 'b', 'a'])
+	})
+
+	test('Can set identifier function', () => {
+		const array = [
+			{ text: 'a', order: 2 },
+			{ text: 'z', order: 1 },
+			{ text: 'b', order: 3 },
+		] as const
+		expect(orderBy(array, [(v) => v.order]).map((v) => v.text)).toEqual(['z', 'a', 'b'])
+	})
+
+	test('Can set multiple identifier functions', () => {
+		const array = [
+			{ text: 'a', order: 2, secondOrder: 2 },
+			{ text: 'z', order: 1, secondOrder: 3 },
+			{ text: 'b', order: 2, secondOrder: 1 },
+		] as const
+		expect(orderBy(array, [(v) => v.order, (v) => v.secondOrder]).map((v) => v.text)).toEqual(['z', 'b', 'a'])
+	})
+
+	test('Can set order partially', () => {
+		const array = [
+			{ text: 'a', order: 2, secondOrder: 2 },
+			{ text: 'z', order: 1, secondOrder: 3 },
+			{ text: 'b', order: 2, secondOrder: 1 },
+		] as const
+
+		expect(
+			orderBy(
+				array,
+				[(v) => v.order, (v) => v.secondOrder],
+				['desc'],
+			).map((v) => v.text),
+		).toEqual(['b', 'a', 'z'])
+	})
+
+	test('Can set order array', () => {
+		const array = [
+			{ text: 'a', order: 2, secondOrder: 2 },
+			{ text: 'z', order: 1, secondOrder: 3 },
+			{ text: 'b', order: 2, secondOrder: 1 },
+		] as const
+
+		expect(
+			orderBy(
+				array,
+				[(v) => v.order, (v) => v.secondOrder],
+				['desc', 'desc'],
+			).map((v) => v.text),
+		).toEqual(['a', 'b', 'z'])
+	})
+
+	test('Numbers are handled correctly', () => {
+		const array = [
+			{ text: '2.3' },
+			{ text: '2.10' },
+			{ text: '2.0' },
+			{ text: '2.2' },
+		] as const
+
+		expect(
+			orderBy(
+				array,
+				[(v) => v.text],
+			).map((v) => v.text),
+		).toEqual(['2.0', '2.2', '2.3', '2.10'])
+	})
+
+	test('Numbers with suffixes are handled correctly', () => {
+		const array = [
+			{ text: '2024-01-05' },
+			{ text: '2024-05-01' },
+			{ text: '2024-01-10' },
+			{ text: '2024-01-05 Foo' },
+		] as const
+
+		expect(
+			orderBy(
+				array,
+				[(v) => v.text],
+			).map((v) => v.text),
+		).toEqual(['2024-01-05', '2024-01-05 Foo', '2024-01-10', '2024-05-01'])
+	})
+})