import { describe, expect, it } from "vite-plus/test";import type { ProjectEntry } from "@t3tools/contracts"; import { buildFileTree, defaultExpandedTreePaths, flattenFileTree } from "./fileTree"; const entries = [  { kind: "file", path: "README.md" },  { kind: "directory", path: "src" },  { kind: "file", path: "src/index.ts" },  { kind: "file", path: "src/components/App.tsx" },  { kind: "file", path: "package.json" },] satisfies ReadonlyArray<ProjectEntry>; describe("mobile file tree helpers", () => {  it("builds a deterministic hierarchy with directories before files", () => {    const tree = buildFileTree(entries);     expect(tree.map((node) => `${node.kind}:${node.path}`)).toEqual([      "directory:src",      "file:package.json",      "file:README.md",    ]);    expect(tree[0]?.children.map((node) => `${node.kind}:${node.path}`)).toEqual([      "directory:src/components",      "file:src/index.ts",    ]);  });   it("flattens expanded directories and hides collapsed descendants", () => {    const tree = buildFileTree(entries);     expect(      flattenFileTree({        nodes: tree,        expanded: new Set(["src"]),      }).map((item) => `${item.depth}:${item.node.path}`),    ).toEqual(["0:src", "1:src/components", "1:src/index.ts", "0:package.json", "0:README.md"]);     expect(      flattenFileTree({        nodes: tree,        expanded: new Set(),      }).map((item) => item.node.path),    ).toEqual(["src", "package.json", "README.md"]);  });   it("includes matching descendants and their ancestors during search", () => {    const tree = buildFileTree(entries);     expect(      flattenFileTree({        nodes: tree,        expanded: new Set(),        searchQuery: "app",      }).map((item) => item.node.path),    ).toEqual(["src", "src/components", "src/components/App.tsx"]);  });   it("supports fuzzy, whitespace-separated path queries", () => {    const tree = buildFileTree([      {        kind: "file",        path: "docs/internals/workspace-layout.md",      },      {        kind: "file",        path: ".repos/alchemy-effect/examples/aws-lambda/src/JobNotifications.ts",      },      { kind: "directory", path: "apps/web/src/components/chat" },      { kind: "file", path: "apps/web/src/components/chat/ChatHeader.test.ts" },      { kind: "file", path: "apps/web/src/components/chat/ChatHeader.tsx" },      { kind: "file", path: "apps/web/src/components/chat/Composer.tsx" },    ]);     const expectedPaths = [      "apps",      "apps/web",      "apps/web/src",      "apps/web/src/components",      "apps/web/src/components/chat",      "apps/web/src/components/chat/ChatHeader.test.ts",      "apps/web/src/components/chat/ChatHeader.tsx",    ];     for (const searchQuery of ["chat hea", "cht hdr"]) {      expect(        flattenFileTree({          nodes: tree,          expanded: new Set(),          searchQuery,        }).map((item) => item.node.path),      ).toEqual(expectedPaths);    }  });   it("expands top-level directories by default", () => {    const tree = buildFileTree(entries);     expect([...defaultExpandedTreePaths(tree)]).toEqual(["src"]);  });});