merge new into master

node_modules/zod/src/v4/classic/tests/apply.test.ts

@@ -0,0 +1,59 @@
+import { expect, expectTypeOf, test } from "vitest";
+
+import * as z from "zod/v4";
+
+test("basic apply (object)", () => {
+  const schema = z
+    .object({
+      a: z.number(),
+      b: z.string(),
+    })
+    .apply((s) => s.omit({ b: true }))
+    .apply((s) => s.extend({ c: z.boolean() }));
+
+  expect(z.toJSONSchema(schema)).toMatchInlineSnapshot(`
+    {
+      "$schema": "https://json-schema.org/draft/2020-12/schema",
+      "additionalProperties": false,
+      "properties": {
+        "a": {
+          "type": "number",
+        },
+        "c": {
+          "type": "boolean",
+        },
+      },
+      "required": [
+        "a",
+        "c",
+      ],
+      "type": "object",
+    }
+  `);
+  expectTypeOf<z.infer<typeof schema>>().toEqualTypeOf<{
+    a: number;
+    c: boolean;
+  }>();
+});
+
+test("basic apply (number)", () => {
+  const setCommonNumberChecks = <T extends z.ZodNumber>(schema: T) => {
+    return schema.min(0).max(100);
+  };
+
+  const schema = z.number().apply(setCommonNumberChecks).nullable();
+
+  expect(() => schema.parse(-1)).toThrowError();
+  expect(() => schema.parse(101)).toThrowError();
+  expect(schema.parse(0)).toBe(0);
+  expect(schema.parse(null)).toBe(null);
+  expectTypeOf<z.infer<typeof schema>>().toEqualTypeOf<number | null>();
+});
+
+test("The callback's return value becomes the apply's return value.", () => {
+  const symbol = Symbol();
+  const result = z.number().apply(() => symbol);
+
+  expect(result).toBe(symbol);
+  expectTypeOf<typeof result>().toEqualTypeOf<symbol>();
+});