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23 lines
1.1 KiB
TypeScript
23 lines
1.1 KiB
TypeScript
import {expectNotAssignable, expectType} from 'tsd';
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import type {SetRequired} from '../index';
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// Update one required and one optional to required.
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declare const variation1: SetRequired<{a?: number; b: string; c?: boolean}, 'b' | 'c'>;
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expectType<{a?: number; b: string; c: boolean}>(variation1);
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// Update two optional to required.
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declare const variation2: SetRequired<{a?: number; b?: string; c?: boolean}, 'a' | 'b'>;
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expectType<{a: number; b: string; c?: boolean}>(variation2);
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// Three required remain required.
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declare const variation3: SetRequired<{a: number; b: string; c: boolean}, 'a' | 'b' | 'c'>;
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expectType<{a: number; b: string; c: boolean}>(variation3);
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// Fail if type changes even if optional is right.
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declare const variation4: SetRequired<{a?: number; b: string; c?: boolean}, 'b' | 'c'>;
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expectNotAssignable<{a?: boolean; b: string; c: boolean}>(variation4);
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// Update one required and one optional to required in a union.
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declare const variation5: SetRequired<{a?: '1'; b: string; c?: boolean} | {a?: '2'; b: string; c?: boolean}, 'a' | 'b'>;
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expectType<{a: '1'; b: string; c?: boolean} | {a: '2'; b: string; c?: boolean}>(variation5);
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