v1.0 with SW PWA enabled

frontend/node_modules/zod/src/v4/classic/tests/discriminated-unions.test.ts

@@ -0,0 +1,619 @@
+import { expect, expectTypeOf, test } from "vitest";
+
+import * as z from "zod/v4";
+
+test("_values", () => {
+  expect(z.string()._zod.values).toEqual(undefined);
+  expect(z.enum(["a", "b"])._zod.values).toEqual(new Set(["a", "b"]));
+  expect(z.nativeEnum({ a: "A", b: "B" })._zod.values).toEqual(new Set(["A", "B"]));
+  expect(z.literal("test")._zod.values).toEqual(new Set(["test"]));
+  expect(z.literal(123)._zod.values).toEqual(new Set([123]));
+  expect(z.literal(true)._zod.values).toEqual(new Set([true]));
+  expect(z.literal(BigInt(123))._zod.values).toEqual(new Set([BigInt(123)]));
+  expect(z.undefined()._zod.values).toEqual(new Set([undefined]));
+  expect(z.null()._zod.values).toEqual(new Set([null]));
+
+  const t = z.literal("test");
+  expect(t.optional()._zod.values).toEqual(new Set(["test", undefined]));
+  expect(t.nullable()._zod.values).toEqual(new Set(["test", null]));
+  expect(t.default("test")._zod.values).toEqual(new Set(["test"]));
+  expect(t.catch("test")._zod.values).toEqual(new Set(["test"]));
+
+  const pre = z.preprocess((val) => String(val), z.string()).pipe(z.literal("test"));
+  expect(pre._zod.values).toEqual(undefined);
+
+  const post = z.literal("test").transform((_) => Math.random());
+  expect(post._zod.values).toEqual(new Set(["test"]));
+
+  // Test that readonly literals pass through their values property
+  expect(z.literal("test").readonly()._zod.values).toEqual(new Set(["test"]));
+});
+
+test("valid parse - object", () => {
+  expect(
+    z
+      .discriminatedUnion("type", [
+        z.object({ type: z.literal("a"), a: z.string() }),
+        z.object({ type: z.literal("b"), b: z.string() }),
+      ])
+      .parse({ type: "a", a: "abc" })
+  ).toEqual({ type: "a", a: "abc" });
+});
+
+test("valid - include discriminator key (deprecated)", () => {
+  expect(
+    z
+      .discriminatedUnion("type", [
+        z.object({ type: z.literal("a"), a: z.string() }),
+        z.object({ type: z.literal("b"), b: z.string() }),
+      ])
+      .parse({ type: "a", a: "abc" })
+  ).toEqual({ type: "a", a: "abc" });
+});
+
+test("valid - optional discriminator (object)", () => {
+  const schema = z.discriminatedUnion("type", [
+    z.object({ type: z.literal("a").optional(), a: z.string() }),
+    z.object({ type: z.literal("b"), b: z.string() }),
+  ]);
+  expect(schema.parse({ type: "a", a: "abc" })).toEqual({ type: "a", a: "abc" });
+  expect(schema.parse({ a: "abc" })).toEqual({ a: "abc" });
+});
+
+test("valid - discriminator value of various primitive types", () => {
+  const schema = z.discriminatedUnion("type", [
+    z.object({ type: z.literal("1"), val: z.string() }),
+    z.object({ type: z.literal(1), val: z.string() }),
+    z.object({ type: z.literal(BigInt(1)), val: z.string() }),
+    z.object({ type: z.literal("true"), val: z.string() }),
+    z.object({ type: z.literal(true), val: z.string() }),
+    z.object({ type: z.literal("null"), val: z.string() }),
+    z.object({ type: z.null(), val: z.string() }),
+    z.object({ type: z.literal("undefined"), val: z.string() }),
+    z.object({ type: z.undefined(), val: z.string() }),
+  ]);
+
+  expect(schema.parse({ type: "1", val: "val" })).toEqual({ type: "1", val: "val" });
+  expect(schema.parse({ type: 1, val: "val" })).toEqual({ type: 1, val: "val" });
+  expect(schema.parse({ type: BigInt(1), val: "val" })).toEqual({
+    type: BigInt(1),
+    val: "val",
+  });
+  expect(schema.parse({ type: "true", val: "val" })).toEqual({
+    type: "true",
+    val: "val",
+  });
+  expect(schema.parse({ type: true, val: "val" })).toEqual({
+    type: true,
+    val: "val",
+  });
+  expect(schema.parse({ type: "null", val: "val" })).toEqual({
+    type: "null",
+    val: "val",
+  });
+  expect(schema.parse({ type: null, val: "val" })).toEqual({
+    type: null,
+    val: "val",
+  });
+  expect(schema.parse({ type: "undefined", val: "val" })).toEqual({
+    type: "undefined",
+    val: "val",
+  });
+  expect(schema.parse({ type: undefined, val: "val" })).toEqual({
+    type: undefined,
+    val: "val",
+  });
+
+  const fail = schema.safeParse({
+    type: "not_a_key",
+    val: "val",
+  });
+  expect(fail.error).toBeInstanceOf(z.ZodError);
+});
+
+test("invalid - null", () => {
+  try {
+    z.discriminatedUnion("type", [
+      z.object({ type: z.literal("a"), a: z.string() }),
+      z.object({ type: z.literal("b"), b: z.string() }),
+    ]).parse(null);
+    throw new Error();
+  } catch (e: any) {
+    // [
+    //   {
+    //     code: z.ZodIssueCode.invalid_type,
+    //     expected: z.ZodParsedType.object,
+    //     input: null,
+    //     message: "Expected object, received null",
+    //     received: z.ZodParsedType.null,
+    //     path: [],
+    //   },
+    // ];
+    expect(e.issues).toMatchInlineSnapshot(`
+      [
+        {
+          "code": "invalid_type",
+          "expected": "object",
+          "message": "Invalid input: expected object, received null",
+          "path": [],
+        },
+      ]
+    `);
+  }
+});
+
+test("invalid discriminator value", () => {
+  const result = z
+    .discriminatedUnion("type", [
+      z.object({ type: z.literal("a"), a: z.string() }),
+      z.object({ type: z.literal("b"), b: z.string() }),
+    ])
+    .safeParse({ type: "x", a: "abc" });
+
+  expect(result).toMatchInlineSnapshot(`
+    {
+      "error": [ZodError: [
+      {
+        "code": "invalid_union",
+        "errors": [],
+        "note": "No matching discriminator",
+        "path": [
+          "type"
+        ],
+        "message": "Invalid input"
+      }
+    ]],
+      "success": false,
+    }
+  `);
+});
+
+test("invalid discriminator value - unionFallback", () => {
+  const result = z
+    .discriminatedUnion(
+      "type",
+      [z.object({ type: z.literal("a"), a: z.string() }), z.object({ type: z.literal("b"), b: z.string() })],
+      { unionFallback: true }
+    )
+    .safeParse({ type: "x", a: "abc" });
+  expect(result).toMatchInlineSnapshot(`
+    {
+      "error": [ZodError: [
+      {
+        "code": "invalid_union",
+        "errors": [
+          [
+            {
+              "code": "invalid_value",
+              "values": [
+                "a"
+              ],
+              "path": [
+                "type"
+              ],
+              "message": "Invalid input: expected \\"a\\""
+            }
+          ],
+          [
+            {
+              "code": "invalid_value",
+              "values": [
+                "b"
+              ],
+              "path": [
+                "type"
+              ],
+              "message": "Invalid input: expected \\"b\\""
+            },
+            {
+              "expected": "string",
+              "code": "invalid_type",
+              "path": [
+                "b"
+              ],
+              "message": "Invalid input: expected string, received undefined"
+            }
+          ]
+        ],
+        "path": [],
+        "message": "Invalid input"
+      }
+    ]],
+      "success": false,
+    }
+  `);
+});
+
+test("valid discriminator value, invalid data", () => {
+  const result = z
+    .discriminatedUnion("type", [
+      z.object({ type: z.literal("a"), a: z.string() }),
+      z.object({ type: z.literal("b"), b: z.string() }),
+    ])
+    .safeParse({ type: "a", b: "abc" });
+
+  // [
+  //   {
+  //     code: z.ZodIssueCode.invalid_type,
+  //     expected: z.ZodParsedType.string,
+  //     message: "Required",
+  //     path: ["a"],
+  //     received: z.ZodParsedType.undefined,
+  //   },
+  // ];
+  expect(result).toMatchInlineSnapshot(`
+    {
+      "error": [ZodError: [
+      {
+        "expected": "string",
+        "code": "invalid_type",
+        "path": [
+          "a"
+        ],
+        "message": "Invalid input: expected string, received undefined"
+      }
+    ]],
+      "success": false,
+    }
+  `);
+});
+
+test("wrong schema - missing discriminator", () => {
+  try {
+    z.discriminatedUnion("type", [
+      z.object({ type: z.literal("a"), a: z.string() }),
+      z.object({ b: z.string() }) as any,
+    ])._zod.propValues;
+    throw new Error();
+  } catch (e: any) {
+    expect(e.message.includes("Invalid discriminated union option")).toBe(true);
+  }
+});
+
+// removed to account for unions of unions
+// test("wrong schema - duplicate discriminator values", () => {
+//   try {
+//     z.discriminatedUnion("type",[
+//       z.object({ type: z.literal("a"), a: z.string() }),
+//       z.object({ type: z.literal("a"), b: z.string() }),
+//     ]);
+//     throw new Error();
+//   } catch (e: any) {
+//     expect(e.message.includes("Duplicate discriminator value")).toEqual(true);
+//   }
+// });
+
+test("async - valid", async () => {
+  const schema = await z.discriminatedUnion("type", [
+    z.object({
+      type: z.literal("a"),
+      a: z
+        .string()
+        .refine(async () => true)
+        .transform(async (val) => Number(val)),
+    }),
+    z.object({
+      type: z.literal("b"),
+      b: z.string(),
+    }),
+  ]);
+  const data = { type: "a", a: "1" };
+  const result = await schema.safeParseAsync(data);
+  expect(result.data).toEqual({ type: "a", a: 1 });
+});
+
+test("async - invalid", async () => {
+  // try {
+  const a = z.discriminatedUnion("type", [
+    z.object({
+      type: z.literal("a"),
+      a: z
+        .string()
+        .refine(async () => true)
+        .transform(async (val) => val),
+    }),
+    z.object({
+      type: z.literal("b"),
+      b: z.string(),
+    }),
+  ]);
+  const result = await a.safeParseAsync({ type: "a", a: 1 });
+
+  // expect(JSON.parse(e.message)).toEqual([
+  //   {
+  //     code: "invalid_type",
+  //     expected: "string",
+  //     input: 1,
+  //     received: "number",
+  //     path: ["a"],
+  //     message: "Expected string, received number",
+  //   },
+  // ]);
+  expect(result.error).toMatchInlineSnapshot(`
+    [ZodError: [
+      {
+        "expected": "string",
+        "code": "invalid_type",
+        "path": [
+          "a"
+        ],
+        "message": "Invalid input: expected string, received number"
+      }
+    ]]
+  `);
+});
+
+test("valid - literals with .default or .pipe", () => {
+  const schema = z.discriminatedUnion("type", [
+    z.object({
+      type: z.literal("foo").default("foo"),
+      a: z.string(),
+    }),
+    z.object({
+      type: z.literal("custom"),
+      method: z.string(),
+    }),
+    z.object({
+      type: z.literal("bar").transform((val) => val),
+      c: z.string(),
+    }),
+  ]);
+  expect(schema.parse({ type: "foo", a: "foo" })).toEqual({
+    type: "foo",
+    a: "foo",
+  });
+});
+
+test("enum and nativeEnum", () => {
+  enum MyEnum {
+    d = 0,
+    e = "e",
+  }
+
+  const schema = z.discriminatedUnion("key", [
+    z.object({
+      key: z.literal("a"),
+      // Add other properties specific to this option
+    }),
+    z.object({
+      key: z.enum(["b", "c"]),
+      // Add other properties specific to this option
+    }),
+    z.object({
+      key: z.nativeEnum(MyEnum),
+      // Add other properties specific to this option
+    }),
+  ]);
+
+  type schema = z.infer<typeof schema>;
+  expectTypeOf<schema>().toEqualTypeOf<{ key: "a" } | { key: "b" | "c" } | { key: MyEnum.d | MyEnum.e }>();
+
+  schema.parse({ key: "a" });
+  schema.parse({ key: "b" });
+  schema.parse({ key: "c" });
+  schema.parse({ key: MyEnum.d });
+  schema.parse({ key: MyEnum.e });
+  schema.parse({ key: "e" });
+});
+
+test("branded", () => {
+  const schema = z.discriminatedUnion("key", [
+    z.object({
+      key: z.literal("a"),
+      // Add other properties specific to this option
+    }),
+    z.object({
+      key: z.literal("b").brand<"asdfasdf">(),
+      // Add other properties specific to this option
+    }),
+  ]);
+
+  type schema = z.infer<typeof schema>;
+  expectTypeOf<schema>().toEqualTypeOf<{ key: "a" } | { key: "b" & z.core.$brand<"asdfasdf"> }>();
+
+  schema.parse({ key: "a" });
+  schema.parse({ key: "b" });
+  expect(() => {
+    schema.parse({ key: "c" });
+  }).toThrow();
+});
+
+test("optional and nullable", () => {
+  const schema = z.discriminatedUnion("key", [
+    z.object({
+      key: z.literal("a").optional(),
+      a: z.literal(true),
+    }),
+    z.object({
+      key: z.literal("b").nullable(),
+      b: z.literal(true),
+      // Add other properties specific to this option
+    }),
+  ]);
+
+  type schema = z.infer<typeof schema>;
+  expectTypeOf<schema>().toEqualTypeOf<{ key?: "a" | undefined; a: true } | { key: "b" | null; b: true }>();
+
+  schema.parse({ key: "a", a: true });
+  schema.parse({ key: undefined, a: true });
+  schema.parse({ key: "b", b: true });
+  schema.parse({ key: null, b: true });
+  expect(() => {
+    schema.parse({ key: null, a: true });
+  }).toThrow();
+  expect(() => {
+    schema.parse({ key: "b", a: true });
+  }).toThrow();
+
+  const value = schema.parse({ key: null, b: true });
+
+  if (!("key" in value)) value.a;
+  if (value.key === undefined) value.a;
+  if (value.key === "a") value.a;
+  if (value.key === "b") value.b;
+  if (value.key === null) value.b;
+});
+
+test("multiple discriminators", () => {
+  const FreeConfig = z.object({
+    type: z.literal("free"),
+    min_cents: z.null(),
+  });
+
+  // console.log(FreeConfig.shape.type);
+  const PricedConfig = z.object({
+    type: z.literal("fiat-price"),
+    // min_cents: z.int().nullable(),
+    min_cents: z.null(),
+  });
+
+  const Config = z.discriminatedUnion("type", [FreeConfig, PricedConfig]);
+
+  Config.parse({
+    min_cents: null,
+    type: "fiat-price",
+    name: "Standard",
+  });
+
+  expect(() => {
+    Config.parse({
+      min_cents: null,
+      type: "not real",
+      name: "Standard",
+    });
+  }).toThrow();
+});
+
+test("single element union", () => {
+  const schema = z.object({
+    a: z.literal("discKey"),
+    b: z.enum(["apple", "banana"]),
+    c: z.object({ id: z.string() }),
+  });
+
+  const input = {
+    a: "discKey",
+    b: "apple",
+    c: {}, // Invalid, as schema requires `id` property
+  };
+
+  // Validation must fail here, but it doesn't
+
+  const u = z.discriminatedUnion("a", [schema]);
+  const result = u.safeParse(input);
+  expect(result).toMatchObject({ success: false });
+  expect(result).toMatchInlineSnapshot(`
+    {
+      "error": [ZodError: [
+      {
+        "expected": "string",
+        "code": "invalid_type",
+        "path": [
+          "c",
+          "id"
+        ],
+        "message": "Invalid input: expected string, received undefined"
+      }
+    ]],
+      "success": false,
+    }
+  `);
+
+  expect(u.options.length).toEqual(1);
+});
+
+test("nested discriminated unions", () => {
+  const BaseError = z.object({ status: z.literal("failed"), message: z.string() });
+  const MyErrors = z.discriminatedUnion("code", [
+    BaseError.extend({ code: z.literal(400) }),
+    BaseError.extend({ code: z.literal(401) }),
+    BaseError.extend({ code: z.literal(500) }),
+  ]);
+
+  const MyResult = z.discriminatedUnion("status", [
+    z.object({ status: z.literal("success"), data: z.string() }),
+    MyErrors,
+  ]);
+
+  expect(MyErrors._zod.propValues).toMatchInlineSnapshot(`
+    {
+      "code": Set {
+        400,
+        401,
+        500,
+      },
+      "status": Set {
+        "failed",
+      },
+    }
+  `);
+  expect(MyResult._zod.propValues).toMatchInlineSnapshot(`
+    {
+      "code": Set {
+        400,
+        401,
+        500,
+      },
+      "status": Set {
+        "success",
+        "failed",
+      },
+    }
+  `);
+
+  const result = MyResult.parse({ status: "success", data: "hello" });
+  expect(result).toMatchInlineSnapshot(`
+    {
+      "data": "hello",
+      "status": "success",
+    }
+  `);
+  const result2 = MyResult.parse({ status: "failed", code: 400, message: "bad request" });
+  expect(result2).toMatchInlineSnapshot(`
+    {
+      "code": 400,
+      "message": "bad request",
+      "status": "failed",
+    }
+  `);
+  const result3 = MyResult.parse({ status: "failed", code: 401, message: "unauthorized" });
+  expect(result3).toMatchInlineSnapshot(`
+    {
+      "code": 401,
+      "message": "unauthorized",
+      "status": "failed",
+    }
+  `);
+  const result4 = MyResult.parse({ status: "failed", code: 500, message: "internal server error" });
+  expect(result4).toMatchInlineSnapshot(`
+    {
+      "code": 500,
+      "message": "internal server error",
+      "status": "failed",
+    }
+  `);
+});
+
+test("readonly literal discriminator", () => {
+  const discUnion = z.discriminatedUnion("type", [
+    z.object({ type: z.literal("a").readonly(), a: z.string() }),
+    z.object({ type: z.literal("b"), b: z.number() }),
+  ]);
+
+  // Test that both discriminator values are correctly included in propValues
+  const propValues = discUnion._zod.propValues;
+  expect(propValues?.type?.has("a")).toBe(true);
+  expect(propValues?.type?.has("b")).toBe(true);
+
+  // Test that the discriminated union works correctly
+  const result1 = discUnion.parse({ type: "a", a: "hello" });
+  expect(result1).toEqual({ type: "a", a: "hello" });
+
+  const result2 = discUnion.parse({ type: "b", b: 42 });
+  expect(result2).toEqual({ type: "b", b: 42 });
+
+  // Test that invalid discriminator values are rejected
+  expect(() => {
+    discUnion.parse({ type: "c", a: "hello" });
+  }).toThrow();
+});