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20 lines
473 B
TypeScript
20 lines
473 B
TypeScript
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import { vi } from "vitest";
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/**
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* 標準出力のテストのためのヘルパー
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* @param proc 実行する関数
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* @return 標準出力の結果
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*/
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async function run(proc: () => PromiseLike<void>): Promise<string> {
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const out: string[] = [];
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const stdout = vi.spyOn(process.stdout, "write").mockImplementation((val) => {
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out.push(val as string);
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return true;
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});
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await proc();
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stdout.mockRestore();
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return out.join("");
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}
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export default run;
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