zod/src/v4/classic/tests/coalesce.test.ts

TypeScript-first schema declaration and validation library with static type inference

import { expect, test } from "vitest";

test("coalesce", () => {
  expect(true).toBe(true);
});

// test("nonoptional with default", () => {
//   const schema = z.string().optional().coalesce("hi");
//   expectTypeOf<typeof schema._input>().toEqualTypeOf<string | undefined>();
//   expectTypeOf<typeof schema._output>().toEqualTypeOf<string>();
//   expect(schema.parse(undefined)).toBe("hi");
// });

// test("nonoptional in object", () => {
//   const schema = z.object({ hi: z.string().optional().nonoptional("hi") });

//   expectTypeOf<typeof schema._input>().toEqualTypeOf<{ hi: string | undefined }>();
//   expectTypeOf<typeof schema._output>().toEqualTypeOf<{ hi: string }>();
//   expect(schema.parse(undefined)).toBe("hi");
// });