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migrate-to-shoehorn

将测试文件中的 `as` 类型断言迁移到 @total-typescript/shoehorn。当用户提到 shoehorn、想替换测试中的 `as`,或需要部分测试数据时使用。

Skill by WenWuZhiDao

IndexedMIT★ 29
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About

将测试文件中的 `as` 类型断言迁移到 @total-typescript/shoehorn。当用户提到 shoehorn、想替换测试中的 `as`,或需要部分测试数据时使用。

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What this skill can do and what it asks for, from its SKILL.md and code. Checked Oct 26, 2026.

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  • codeload.github.com · found in install command

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  • ~/.claude/skills/migrate-to-shoehorn

What's inside

Skill name
migrate-to-shoehorn
Description
将测试文件中的 `as` 类型断言迁移到 @total-typescript/shoehorn。当用户提到 shoehorn、想替换测试中的 `as`,或需要部分测试数据时使用。
License
MIT
Instructions
115 lines in SKILL.md · view on GitHub

Files (2)

  • SKILL.md
  • openai.yaml · agents/

SKILL.md (first lines)

# 迁移到 Shoehorn

## 为什么用 shoehorn?

`shoehorn` 让你在测试中传入部分数据,同时让 TypeScript 满意。它用类型安全的替代方案取代 `as` 断言。

**仅限测试代码。** 永远不要在生产代码中使用 shoehorn。

在测试中使用 `as` 的问题:

- 被训练成不要使用它
- 必须手动指定目标类型
- 对于故意错误的数据需要双重 as(`as unknown as Type`)

## 安装

```bash
npm i @total-typescript/shoehorn
```

## 迁移模式

### 只需要少数属性的大对象

之前:

```ts
type Request = {
  body: { id: string };
  headers: Record<string, string>;
  cookies: Record<string, string>;
  // ...还有 20 多个属性
};

it("gets user by id", () => {
  // 只关心 body.id,但必须伪造整个 Request
  getUser({
    body: { id: "123" },
    headers: {},
    cookies: {},
    // ...伪造全部 20 个属性
  });
});
```

之后:

```ts
import { fromPartial } from "@total-typescript/shoehorn";

it("gets user by id", () => {
  getUser(
    fromPartial({
      body: { id: "123" },
    }),
  );
});
```

### `as Type` → `fromPartial()`

之前:

```ts
getUser({ body: { id: "123" } } as Request);
```

之后:

```ts
import { fromPartial } from "@total-typescript/shoehorn";

getUser(fromPartial({ body: { id: "123" } }));
```

### `as unknown as Type` → `fromAny()`

之前:

```ts
getUser({ body: { id: 123 } } as unknown as Request); // 故意用错误的类型
```

之后:

```ts
import { fromAny } from "@total-typescript/shoehorn";

getUser(fromAny({ body: { id: 123 } }));
```

## 各函数何时使用

| 函数            | 使用场景                                           |
| --------------- | -------------------------------------------------- |
| `fromPartial()` | 传入仍能通过类型检查的部分数据                     |
| `fromAny()`     | 传入故意错误的数据(保留自动补全)                 |
| `fromExact()`   | 强制要求完整对象(之后可换成 fromPartial)         |

## 工作流程

1. **收集需求** —— 询问用户:
   - 哪些测试文件里的 `as` 断言造成了问题?
   - 它们是否在处理只有部分属性重要的大对象?
   - 是否需要传入故意错误的数据来做错误测试?

2. **安装并迁移**:
   - [ ] 安装:`npm i @total-typescript/shoehorn`
   - [ ] 找出带 `as` 断言的测试文件:`grep -r " as [A-Z]" --include="*.test.ts" --include="*.spec.ts"`
   - [ ] 将 `as Type` 替换为 `fromPartial()`
   - [ ] 将 `as unknown as Type` 替换为 `fromAny()`
   - [ ] 添加来自 `@total-typescript/shoehorn` 的导入
   - [ ] 运行类型检查以验证

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Last commit (this folder)
Jul 24, 2026 (3 months ago)
Last release
Aug 13, 2026 (2 months ago)

From GitHub (fetched Oct 24, 2026).

Details

License
MIT
First seen
Oct 24, 2026
Last checked
Oct 24, 2026

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migrate-to-shoehorn skill. Agent Mart. https://agentmart.dev/skills/wenwuzhidao-migrate-to-shoehorn (last updated 2026-10-24)