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Testing Script Parser Configuration Handling in dcloudio/uni-app

This test suite validates the script parsing functionality in uni-app’s CLI shared package, focusing on platform-specific configurations and context handling. The tests ensure proper parsing of package.json scripts for different H5 platform variations.

Test Coverage Overview

The test suite provides targeted coverage for the parseScripts utility function, specifically examining H5 platform variations.

Key areas tested include:

Platform identification and parsing
Context object generation for different H5 variants (WEIXIN, QQ)
Package path resolution and handling
Platform-specific configuration validation

Implementation Analysis

The testing approach utilizes Jest’s describe/test pattern for structured test organization. The implementation leverages path resolution for test fixtures and employs explicit equality assertions to verify parsed configurations.

Key patterns include:

Direct function invocation testing
Path-based fixture loading
Expected object structure validation
Platform context boolean flag verification

Technical Details

Testing infrastructure includes:

Jest as the primary testing framework
Node.js path module for file resolution
Custom test fixtures in package.json format
TypeScript configuration for type-safe testing
Explicit equality matchers from Jest’s expect API

Best Practices Demonstrated

The test suite exemplifies several testing best practices in its implementation. It maintains clear test isolation, uses descriptive test cases, and provides comprehensive platform variant coverage.

Notable practices include:

Isolated test scenarios for each platform variant
Explicit expected value assertions
Structured test organization
Clear separation of test fixtures

dcloudio/uni-app

packages/uni-cli-shared/__tests__/scripts.spec.ts

            
import path from 'path'
import { parseScripts } from '../src/scripts'

describe('filter', () => {
  test(`basic`, () => {
    const pkgPath = path.resolve(
      __dirname,
      'examples/custom-scripts/package.json'
    )
    expect(parseScripts('H5-WEIXIN', pkgPath)).toEqual({
      name: 'H5-WEIXIN',
      platform: 'H5',
      define: {},
      context: { 'H5-BASE': true, 'H5-WEIXIN': true, 'H5-QQ': false },
    })
    expect(parseScripts('H5-QQ', pkgPath)).toEqual({
      name: 'H5-QQ',
      platform: 'H5',
      define: {},
      context: { 'H5-BASE': false, 'H5-QQ': true, 'H5-WEIXIN': false },
    })
  })
})