27 lines
1.3 KiB
Plaintext
27 lines
1.3 KiB
Plaintext
import { expectTypeOf, test } from "vitest";
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import * as z from "zod/v4";
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test("ZodPreprocess<B> assignable to ZodPipe<$ZodTransform, B>", () => {
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const pre = z.preprocess((v) => v, z.string().optional());
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const _asPipe: z.ZodPipe<z.core.$ZodTransform, z.ZodOptional<z.ZodString>> = pre;
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const _asCorePipe: z.core.$ZodPipe<z.core.$ZodTransform, z.ZodOptional<z.ZodString>> = pre;
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expectTypeOf(_asPipe).toMatchTypeOf<z.ZodPipe>();
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expectTypeOf(_asCorePipe).toMatchTypeOf<z.core.$ZodPipe>();
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});
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test("ZodPreprocess optin/optout defer to B", () => {
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const optionalInside = z.preprocess((v) => v, z.string().optional());
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expectTypeOf<(typeof optionalInside)["_zod"]["optin"]>().toEqualTypeOf<"optional">();
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expectTypeOf<(typeof optionalInside)["_zod"]["optout"]>().toEqualTypeOf<"optional">();
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const required = z.preprocess((v) => v, z.string());
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expectTypeOf<(typeof required)["_zod"]["optin"]>().toEqualTypeOf<"optional" | undefined>();
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expectTypeOf<(typeof required)["_zod"]["optout"]>().toEqualTypeOf<"optional" | undefined>();
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});
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test("ZodPreprocess input/output inference", () => {
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const pre = z.preprocess((v) => v, z.number().optional());
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expectTypeOf<z.output<typeof pre>>().toEqualTypeOf<number | undefined>();
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expectTypeOf<z.input<typeof pre>>().toEqualTypeOf<unknown>();
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});
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