test: 建立 DOCX 自动化验收门禁

apps/desktop/src/desktop-application-controller.ts

@@ -52,6 +52,7 @@ import {
   toDesktopDocxExportFailure,
   type DesktopDocxExportOutcome
 } from "./docx-contract.js";
+import { saveDesktopDocx } from "./desktop-docx-save.js";
 import { ElectronDocxMediaEngine } from "./electron-docx-media-engine.js";
 import {
   parseMarkdownRenderRequest,
@@ -987,16 +988,14 @@ export class DesktopApplicationController {
               timings: generated.timings
             };
           }
-          const targetPath = selection.filePath
-            .toLowerCase()
-            .endsWith(".docx")
-            ? selection.filePath
-            : `${selection.filePath}.docx`;
-          await writeFile(targetPath, generated.docx);
+          const saved = await saveDesktopDocx(
+            selection.filePath,
+            generated.docx
+          );
           return {
             ok: true,
             saved: true,
-            fileName: path.basename(targetPath),
+            fileName: saved.fileName,
             diagnostics: generated.diagnostics,
             timings: generated.timings
           };

apps/desktop/src/desktop-docx-save.ts

@@ -0,0 +1,23 @@
+import path from "node:path";
+import { writeFile } from "node:fs/promises";
+
+export function resolveDesktopDocxTargetPath(selectedPath: string) {
+  return selectedPath.toLowerCase().endsWith(".docx")
+    ? selectedPath
+    : `${selectedPath}.docx`;
+}
+
+export async function saveDesktopDocx(
+  selectedPath: string,
+  content: Uint8Array
+) {
+  if (!selectedPath || content.byteLength === 0) {
+    throw new Error("DOCX 保存参数无效");
+  }
+  const targetPath = resolveDesktopDocxTargetPath(selectedPath);
+  await writeFile(targetPath, content);
+  return {
+    targetPath,
+    fileName: path.basename(targetPath)
+  };
+}

apps/desktop/tests/desktop-docx-save.test.ts

@@ -0,0 +1,57 @@
+import { mkdtemp, readFile, rm } from "node:fs/promises";
+import os from "node:os";
+import path from "node:path";
+import { afterEach, describe, expect, it } from "vitest";
+import {
+  resolveDesktopDocxTargetPath,
+  saveDesktopDocx
+} from "../src/desktop-docx-save.js";
+
+const temporaryDirectories: string[] = [];
+
+afterEach(async () => {
+  await Promise.all(
+    temporaryDirectories.splice(0).map((directory) =>
+      rm(directory, { recursive: true, force: true })
+    )
+  );
+});
+
+async function createTemporaryDirectory() {
+  const directory = await mkdtemp(
+    path.join(os.tmpdir(), "md-to-pdf-desktop-docx-save-")
+  );
+  temporaryDirectories.push(directory);
+  return directory;
+}
+
+describe("Desktop DOCX 原生保存", () => {
+  it("在用户未填写扩展名时补充 .docx 并原样落盘", async () => {
+    const directory = await createTemporaryDirectory();
+    const content = Uint8Array.of(80, 75, 3, 4, 1, 2, 3);
+    const selectedPath = path.join(directory, "桌面验收");
+
+    const saved = await saveDesktopDocx(selectedPath, content);
+
+    expect(saved).toEqual({
+      targetPath: `${selectedPath}.docx`,
+      fileName: "桌面验收.docx"
+    });
+    expect(await readFile(saved.targetPath)).toEqual(Buffer.from(content));
+  });
+
+  it("大小写不敏感地保留已有 DOCX 扩展名", () => {
+    expect(resolveDesktopDocxTargetPath("报告.DOCX")).toBe(
+      "报告.DOCX"
+    );
+  });
+
+  it("拒绝空路径或空内容", async () => {
+    await expect(
+      saveDesktopDocx("", Uint8Array.of(80, 75))
+    ).rejects.toThrow("DOCX 保存参数无效");
+    await expect(
+      saveDesktopDocx("报告.docx", new Uint8Array())
+    ).rejects.toThrow("DOCX 保存参数无效");
+  });
+});