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Testing QQ Mini Program Component Transformations in dcloudio/uni-app

A comprehensive test suite for QQ Mini Program component transformations in uni-app, focusing on v-show directive handling and match-media component integration. The tests validate component rendering and directive transformations for the QQ platform implementation.

Test Coverage Overview

This test suite provides essential coverage for QQ Mini Program component transformations.

Key areas tested include:

v-show directive transformation to platform-specific attributes
Match-media component rendering and initialization
Component binding and unique identifier generation
Template transformation accuracy

Implementation Analysis

The testing approach utilizes Jest’s describe/test pattern for organizing component transformation tests. Implementation leverages custom assert utilities for comparing input templates with expected QQ platform output.

Technical patterns include:

Template string comparison for transformation validation
Runtime context simulation for component rendering
Directive transformation verification

Technical Details

Testing infrastructure includes:

Jest as the primary testing framework
Custom assertion utilities for template comparison
TypeScript for type-safe test implementation
Component transformation helpers
Mock runtime context generation

Best Practices Demonstrated

The test suite exemplifies high-quality testing practices through clear test organization and comprehensive validation.

Notable practices include:

Isolated component testing
Explicit expected output verification
Consistent test structure and naming
Platform-specific transformation validation

dcloudio/uni-app

packages/uni-mp-qq/__tests__/component.spec.ts

            
import { assert } from './testUtils'

describe('mp-baidu: transform component', () => {
  test(`component with v-show`, () => {
    assert(
      `<custom v-show="ok"/>`,
      `<custom data-c-h="{{!a}}" u-i="2a9ec0b0-0" bind:__l="__l"/>`,
      `(_ctx, _cache) => {
  return { a: _ctx.ok }
}`
    )
  })
  test(`match-media`, () => {
    assert(
      `<match-media/>`,
      `<uni-match-media u-i="2a9ec0b0-0" bind:__l="__l"/>`,
      `(_ctx, _cache) => {
  return {}
}`
    )
  })
})