feat: align with upstream 1.5.9.9

tests/server/grade-class-options.test.ts

@@ -0,0 +1,45 @@
+import assert from 'node:assert/strict'
+import test from 'node:test'
+import {
+  resolveGradeClassOptions,
+  smartSort
+} from '../../server/utils/grade-class-core.ts'
+
+test('配置非空时优先使用配置项', () => {
+  const config = [{ grade: '高一', class: '一班' }]
+  const fallback = [{ grade: '高二', class: '二班' }]
+
+  assert.deepEqual(resolveGradeClassOptions(config, fallback), config)
+})
+
+test('配置为空时回退到用户提取并按学段排序', () => {
+  const config = []
+  const fallback = [
+    { grade: '高二', class: '二班' },
+    { grade: '高一', class: '一班' }
+  ]
+
+  const result = resolveGradeClassOptions(config, fallback)
+  assert.deepEqual(result.map((item) => item.grade), ['高一', '高二'])
+})
+
+test('过滤年级或班级为空的数据项', () => {
+  const items = [
+    { grade: '高一', class: '一班' },
+    { grade: '', class: '二班' },
+    { grade: '高一', class: '' }
+  ]
+
+  const result = resolveGradeClassOptions(items, [])
+  assert.equal(result.length, 1)
+  assert.deepEqual(result[0], { grade: '高一', class: '一班' })
+})
+
+test('smartSort 按学段权重排序，未知学段按字典序', () => {
+  assert.equal(smartSort('初一', '高一') < 0, true)
+  assert.equal(smartSort('高一', '高二') < 0, true)
+  assert.equal(smartSort('教师', '高一') > 0, true)
+  const values = ['十年级', '二年级']
+  values.sort(smartSort)
+  assert.deepEqual(values, ['二年级', '十年级'])
+})