feat：添加自动化测试

nezha-fronted/test/unit/specs/example.spec.js

@@ -0,0 +1,17 @@
+import { dealLegendAlias } from '@/components/common/js/tools'
+describe('别名替换函数', () => {
+  // 测试代码可读性最好
+  // 分组
+  it('正常替换一个', () => {
+    expect(dealLegendAlias('{a:1,b:2}', '{{a}}')).toBe('1')
+  })
+  it('正常替换多个个', () => {
+    expect(dealLegendAlias('{a:1,b:2}', '{{a}}{{b}}')).toBe('12')
+  })
+  it('匹配不到', () => {
+    expect(dealLegendAlias('{a:1,b:2}', '{{c}}')).toBe('')
+  })
+  it('没有legend', () => {
+    expect(dealLegendAlias('{a:1,b:2}', '')).toBe('{a:1,b:2}')
+  })
+})