技巧

对特定测试文件禁用隔离

为每个 projects 配置项设置 isolate 参数，禁用特定文件的隔离功能，从而加速测试运行速度。

vitest.config.ts

import { defineConfig } from 'vitest/config'

export default defineConfig({
  test: {
    projects: [
      {
        test: {
          // Non-isolated unit tests
          name: 'Unit tests',
          isolate: false,
          exclude: ['**.integration.test.ts'],
        },
      },
      {
        test: {
          // Isolated integration tests
          name: 'Integration tests',
          include: ['**.integration.test.ts'],
        },
      },
    ],
  },
})

并行与串行测试文件

可以通过 projects 配置项，将测试文件划分为并行和串行两组：

vitest.config.ts

import { defineConfig } from 'vitest/config'

export default defineConfig({
  test: {
    projects: [
      {
        test: {
          name: 'Parallel',
          exclude: ['**.sequential.test.ts'],
        },
      },
      {
        test: {
          name: 'Sequential',
          include: ['**.sequential.test.ts'],
          fileParallelism: false,
        },
      },
    ],
  },
})