feat: 提示词拼装器及测试

tests/core/assembler.test.ts

@@ -0,0 +1,144 @@
+import { describe, it, expect, beforeEach, afterEach } from "bun:test";
+import { mkdir, writeFile, rm } from "node:fs/promises";
+import { join } from "node:path";
+import {
+  assembleDiscussPrompt,
+  assemblePlanPrompt,
+  assembleBuildPrompt,
+  assembleArchivePrompt,
+} from "../../src/core/assembler.ts";
+import type { RuneConfig } from "../../src/types.ts";
+import { defaultConfig } from "../../src/defaults/config.ts";
+
+const TMP_DIR = join(import.meta.dir, "__tmp_assembler_test__");
+
+beforeEach(async () => {
+  await mkdir(TMP_DIR, { recursive: true });
+});
+
+afterEach(async () => {
+  await rm(TMP_DIR, { recursive: true, force: true });
+});
+
+describe("assembleDiscussPrompt", () => {
+  it("返回默认 discuss 提示词", () => {
+    const prompt = assembleDiscussPrompt(defaultConfig);
+    expect(prompt).toBeTruthy();
+    expect(prompt).toContain("软件架构师");
+  });
+
+  it("返回自定义 discuss 提示词", () => {
+    const config: RuneConfig = {
+      stages: { discuss: { prompt: "自定义讨论" } },
+    };
+    const prompt = assembleDiscussPrompt(config);
+    expect(prompt).toBe("自定义讨论");
+  });
+});
+
+describe("assemblePlanPrompt", () => {
+  it("包含变更名称和文档指引", async () => {
+    const prompt = await assemblePlanPrompt(
+      defaultConfig,
+      TMP_DIR,
+      "user-auth",
+    );
+    expect(prompt).toContain("user-auth");
+    expect(prompt).toContain("design");
+    expect(prompt).toContain("task");
+    expect(prompt).toContain("格式模板");
+  });
+
+  it("包含已有文档内容（重复 plan 场景）", async () => {
+    const changeDir = join(TMP_DIR, ".rune", "changes", "user-auth");
+    await mkdir(changeDir, { recursive: true });
+    await writeFile(join(changeDir, "design.md"), "# 已有设计");
+    const prompt = await assemblePlanPrompt(
+      defaultConfig,
+      TMP_DIR,
+      "user-auth",
+    );
+    expect(prompt).toContain("已有设计");
+    expect(prompt).toContain("在此基础上修订");
+  });
+
+  it("替换模板中的 {{change-name}}", async () => {
+    const prompt = await assemblePlanPrompt(
+      defaultConfig,
+      TMP_DIR,
+      "user-auth",
+    );
+    expect(prompt).toContain("user-auth 设计文档");
+    expect(prompt).toContain("user-auth 任务列表");
+    expect(prompt).not.toContain("{{change-name}}");
+  });
+
+  it("使用自定义 plan 配置", async () => {
+    const config: RuneConfig = {
+      stages: {
+        plan: {
+          documents: [
+            {
+              name: "spec",
+              prompt: "生成规格",
+              template: "# {{change-name}} 规格",
+            },
+          ],
+        },
+      },
+    };
+    const prompt = await assemblePlanPrompt(config, TMP_DIR, "my-feature");
+    expect(prompt).toContain("spec");
+    expect(prompt).toContain("my-feature 规格");
+    expect(prompt).not.toContain("design");
+  });
+});
+
+describe("assembleBuildPrompt", () => {
+  it("包含待执行任务列表", async () => {
+    const changeDir = join(TMP_DIR, ".rune", "changes", "user-auth");
+    await mkdir(changeDir, { recursive: true });
+    await writeFile(
+      join(changeDir, "task.md"),
+      `- [x] 任务一\n- [ ] 任务二\n- [ ] 任务三`,
+    );
+    const prompt = await assembleBuildPrompt(
+      defaultConfig,
+      TMP_DIR,
+      "user-auth",
+    );
+    expect(prompt).toContain("任务二");
+    expect(prompt).toContain("待执行任务");
+    expect(prompt).toContain("共 2 项");
+  });
+
+  it("所有任务完成时提示可归档", async () => {
+    const changeDir = join(TMP_DIR, ".rune", "changes", "user-auth");
+    await mkdir(changeDir, { recursive: true });
+    await writeFile(
+      join(changeDir, "task.md"),
+      `- [x] 任务一\n- [x] 任务二`,
+    );
+    const prompt = await assembleBuildPrompt(
+      defaultConfig,
+      TMP_DIR,
+      "user-auth",
+    );
+    expect(prompt).toContain("已完成");
+    expect(prompt).toContain("归档");
+  });
+
+  it("task.md 不存在时抛出错误", async () => {
+    await expect(
+      assembleBuildPrompt(defaultConfig, TMP_DIR, "nonexistent"),
+    ).rejects.toThrow("task.md not found");
+  });
+});
+
+describe("assembleArchivePrompt", () => {
+  it("返回归档提示词", () => {
+    const prompt = assembleArchivePrompt(defaultConfig, "user-auth");
+    expect(prompt).toContain("user-auth");
+    expect(prompt).toContain("归档");
+  });
+});