optional.test.ts•1.22 kB
// @ts-ignore TS6133
import { expect, test } from "vitest";
import * as z from "zod/v3";
function checkErrors(a: z.ZodTypeAny, bad: any) {
let expected: any;
try {
a.parse(bad);
} catch (error) {
expected = (error as z.ZodError).formErrors;
}
try {
a.optional().parse(bad);
} catch (error) {
expect((error as z.ZodError).formErrors).toEqual(expected);
}
}
test("Should have error messages appropriate for the underlying type", () => {
checkErrors(z.string().min(2), 1);
z.string().min(2).optional().parse(undefined);
checkErrors(z.number().gte(2), 1);
z.number().gte(2).optional().parse(undefined);
checkErrors(z.boolean(), "");
z.boolean().optional().parse(undefined);
checkErrors(z.undefined(), null);
z.undefined().optional().parse(undefined);
checkErrors(z.null(), {});
z.null().optional().parse(undefined);
checkErrors(z.object({}), 1);
z.object({}).optional().parse(undefined);
checkErrors(z.tuple([]), 1);
z.tuple([]).optional().parse(undefined);
checkErrors(z.unknown(), 1);
z.unknown().optional().parse(undefined);
});
test("unwrap", () => {
const unwrapped = z.string().optional().unwrap();
expect(unwrapped).toBeInstanceOf(z.ZodString);
});