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テスト用のヘルパー関数を追加する #45
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テスト用のヘルパー関数を追加する #45
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optionsAPIのためのオプションを削除
""" Walkthrough新たにテスト用のヘルパー関数が2点追加されました。 Changes
Sequence Diagram(s)sequenceDiagram
participant T as テスター
participant B as bindTestingPinia
participant P as createTestingPinia (@pinia/testing)
T->>B: bindTestingPinia(initialState) を呼び出す
B->>P: createTestingPinia({stubActions: false, ...initialState})
P-->>B: TestingPinia インスタンスを返す
B-->>T: TestingPinia インスタンスを返す
sequenceDiagram
participant T as テスター
participant M as mountSuspendedComponent
participant N as mountSuspended (Nuxt Test Utility)
T->>M: mountSuspendedComponent(component, testingPinia, options) を呼び出す
M->>N: mountSuspended(mergedOptions, component) を呼び出す
N-->>M: VueWrapper を返す
M-->>T: VueWrapper を返す
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Actionable comments posted: 2
📜 Review details
Configuration used: CodeRabbit UI
Review profile: ASSERTIVE
Plan: Pro (Legacy)
📒 Files selected for processing (1)
src/helpers/test/mountSuspendedComponent.ts
(1 hunks)
🔇 Additional comments (4)
src/helpers/test/mountSuspendedComponent.ts (4)
1-3
: インポート構成は問題ありません。
主に@nuxt/test-utils/runtime
と@vue/test-utils
の組み合わせが適切で、PiniaとVueの型を正しく参照できています。
32-67
: ドキュメントコメントが丁寧で分かりやすいです。
パラメータの説明やサンプルコードも充実しており、利用者が迷わずに使える構成になっています。
68-70
: ジェネリクスを用いてコンポーネント側の型安全性を高めている点が良いです。
<VMValue>
を明示的に指定することで、vm 経由でコンポーネント内部に型付きでアクセスできるのは便利です。
21-30
:✅ Verification successful
TypeScript 4.9 以降で導入された
satisfies
演算子の利用を確認してください。
as const satisfies MountOptions
は非常に有用ですが、プロジェクトで使用しているTypeScriptのバージョンが 4.9 未満の場合はビルドが通らない可能性があります。
🌐 Web query:
Which TypeScript version introduced the 'satisfies' operator?
💡 Result:
The
satisfies
operator was introduced in TypeScript 4.9, released in November 2022[1][4][8]. This operator allows developers to validate that an expression's type matches a specified type without altering the inferred type of the expression, enabling both type safety and preserved type narrowing[1][4][6].Key features of the
satisfies
operator:
- Pre-validation: Checks type compatibility before runtime[1][3]
- Type narrowing: Maintains specific inferred types (e.g., preserving literal values instead of widening to
string
)[6][11]- Error detection: Catches typos and type mismatches during development[4][8]
Example usage:
type RGB = [number, number, number]; const palette = { red: [255, 0, 0], green: "#00ff00", blue: [0, 0, 255] } satisfies Record<string, RGB | string>; // TypeScript knows palette.green is a string const greenUpper = palette.green.toUpperCase(); // Valid[5][9]This operator solves common TypeScript dilemmas where developers previously had to choose between type safety and precise type inference[4][6][11].
Citations:
- 1: https://www.freecodecamp.org/news/typescript-satisfies-operator/
- 2: https://javascript.plainenglish.io/satisfies-type-annotation-operator-in-typescript-e94064bbfe42
- 3: https://hackernoon.com/introducing-the-satisfy-operator-in-typescript
- 4: https://www.typescriptlang.org/docs/handbook/release-notes/typescript-4-9.html
- 5: https://www.youtube.com/watch?v=z12xYmmJ8Ww
- 6: https://www.allthingstypescript.dev/p/a-deep-dive-into-the-typescript-satisfies
- 7: "satisfies" operator to ensure an expression matches some type (feedback reset) microsoft/TypeScript#47920
- 8: https://www.youtube.com/watch?v=A5nzTpquGJ4
- 9: https://blog.logrocket.com/getting-started-typescript-satisfies-operator/
- 10: https://typescript.tv/new-features/what-is-the-satisfies-operator-in-typescript
- 11: https://2ality.com/2025/02/satisfies-operator.html
- 12: https://linkedlist.ch/typescript_satisfies_operator_51/
TypeScript 4.9 以降のバージョン確認のお願い
src/helpers/test/mountSuspendedComponent.ts
の該当コードconst DEFAULT_OPTIONS = { testingPinia: undefined, attachTo: undefined, props: {}, slots: {}, shallow: false, stubs: DEFAULT_STUBS, mocks: {}, options: {}, } as const satisfies MountOptions;は、
satisfies
演算子を活用しているため、型チェックとリテラル型の厳密な取り扱いが実現されています。ただし、この構文は TypeScript 4.9 以降で導入されたため、プロジェクト全体で使用している TypeScript のバージョンが 4.9 以上であることを必ずご確認ください。もしビルドエラー等が発生する場合は、TypeScript のバージョンが古い可能性があるので、tsconfig.json
や依存関係の設定を見直してください。
close #31
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