test: file-tree convertToFileTree

Author: devdumpling

test/unit/file-tree.spec.ts

@@ -0,0 +1,75 @@
+import { describe, expect, it } from 'vitest'
+import type { JsDelivrFileNode, PackageFileTree } from '../../shared/types'
+import { convertToFileTree } from '../../server/utils/file-tree'
+
+const getChildren = (node?: PackageFileTree): PackageFileTree[] => node?.children ?? []
+
+describe('convertToFileTree', () => {
+  it('converts jsDelivr nodes to a sorted tree with directories first', () => {
+    const input: JsDelivrFileNode[] = [
+      { type: 'file', name: 'zeta.txt', size: 120 },
+      {
+        type: 'directory',
+        name: 'src',
+        files: [
+          { type: 'file', name: 'b.ts', size: 5 },
+          { type: 'file', name: 'a.ts', size: 3 },
+        ],
+      },
+      { type: 'file', name: 'alpha.txt', size: 10 },
+      {
+        type: 'directory',
+        name: 'assets',
+        files: [{ type: 'file', name: 'logo.svg', size: 42 }],
+      },
+    ]
+
+    const tree = convertToFileTree(input)
+
+    const names = tree.map(node => node.name)
+    expect(names).toEqual(['assets', 'src', 'alpha.txt', 'zeta.txt'])
+
+    const srcNode = tree.find(node => node.name === 'src')
+    expect(srcNode?.type).toBe('directory')
+    expect(getChildren(srcNode).map(child => child.name)).toEqual(['a.ts', 'b.ts'])
+  })
+
+  it('builds correct paths and preserves file sizes', () => {
+    const input: JsDelivrFileNode[] = [
+      {
+        type: 'directory',
+        name: 'src',
+        files: [
+          { type: 'file', name: 'index.ts', size: 100 },
+          {
+            type: 'directory',
+            name: 'utils',
+            files: [{ type: 'file', name: 'format.ts', size: 22 }],
+          },
+        ],
+      },
+    ]
+
+    const tree = convertToFileTree(input)
+
+    const src = tree[0]
+    expect(src?.path).toBe('src')
+
+    const indexFile = getChildren(src).find(child => child.name === 'index.ts')
+    expect(indexFile?.path).toBe('src/index.ts')
+    expect(indexFile?.size).toBe(100)
+
+    const utilsDir = getChildren(src).find(child => child.name === 'utils')
+    expect(utilsDir?.type).toBe('directory')
+
+    const formatFile = getChildren(utilsDir).find(child => child.name === 'format.ts')
+    expect(formatFile?.path).toBe('src/utils/format.ts')
+    expect(formatFile?.size).toBe(22)
+  })
+
+  it('returns an empty tree for empty input', () => {
+    const tree = convertToFileTree([])
+    const empty: PackageFileTree[] = []
+    expect(tree).toEqual(empty)
+  })
+})