const bundle4: MockBundle = {
    'entry.js': {
      fileName: 'entry.js',
      type: 'chunk',
      imports: ['chunk1.js', 'chunk2.js'],
      viteMetadata: { importedCss: ['entry.css'] },
    },
    'entry2.js': {
      fileName: 'entry2.js',
      type: 'chunk',
      imports: ['chunk2.js'],
      viteMetadata: { importedCss: ['entry2.css'] },
    },
    'chunk1.js': {
      fileName: 'chunk1.js',
      type: 'chunk',
      imports: [],
      viteMetadata: { importedCss: ['chunk1.css', 'chunk-shared.css'] },
    },
    'chunk2.js': {
      fileName: 'chunk2.js',
      type: 'chunk',
      imports: [],
      viteMetadata: { importedCss: ['chunk2.css', 'chunk-shared.css'] },
    },
  }

  const oldGetCss4 = createGetCssFilesForChunkOld(bundle4)
  oldGetCss4(bundle4['entry.js']) // Process the first entry and set up the cache.
  // ✅ Output: chunk-shared.css, chunk1.css, chunk2.css, entry.css
  const oldResult4 = oldGetCss4(bundle4['entry2.js'])
  // ❌ Output: chunk2.css, entry2.css
  const newGetCss4 = createGetCssFilesForChunkNew(bundle4)
  newGetCss4(bundle4['entry.js'])
  // ✅ Output: chunk-shared.css, chunk1.css, chunk2.css, entry.css
  const newResult4 = newGetCss4(bundle4['entry2.js'])
  // ✅ Output: chunk-shared.css, chunk2.css, entry2.css