恢复空间标签层级与模型锚点

tests/unit/PoiDisplayPolicy.spec.ts

@@ -0,0 +1,37 @@
+import { describe, expect, it } from 'vitest'
+import {
+  getPoiDisplayPolicy,
+  isPoiVisibilityTierAtLeast
+} from '@/domain/poiDisplay'
+
+describe('POI 显示策略', () => {
+  it('空间点位初始总览保留 marker，但不进入环境标签层', () => {
+    const policy = getPoiDisplayPolicy({
+      primaryCategory: 'space_public_area',
+      kind: 'space'
+    })
+
+    expect(policy.labelVisible).toBe(false)
+    expect(policy.minMarkerTier).toBe('tight')
+    expect(policy.allowOverview).toBe(true)
+    expect(policy.allowMulti).toBe(true)
+    expect(policy.minLabelTier).toBe('full')
+  })
+
+  it('展厅和服务设施拥有不同优先级与标签密度策略', () => {
+    const hall = getPoiDisplayPolicy({ primaryCategory: 'exhibition_hall', kind: 'hall' })
+    const service = getPoiDisplayPolicy({ primaryCategory: 'business_poi', kind: 'facility' })
+
+    expect(hall.labelVisible).toBe(true)
+    expect(hall.minLabelTier).toBe('tight')
+    expect(hall.priority).toBeGreaterThan(service.priority)
+    expect(service.minLabelTier).toBe('full')
+  })
+
+  it('LOD tier 按 tight 到 full 单调放宽', () => {
+    expect(isPoiVisibilityTierAtLeast('tight', 'tight')).toBe(true)
+    expect(isPoiVisibilityTierAtLeast('balanced', 'tight')).toBe(true)
+    expect(isPoiVisibilityTierAtLeast('balanced', 'full')).toBe(false)
+    expect(isPoiVisibilityTierAtLeast('full', 'balanced')).toBe(true)
+  })
+})