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import map from "./map.ts";import { assertEquals, assertThrows } from "testing/asserts.ts";
Deno.test("map", () => {  {    const input = { foo: 1, [Symbol("bar")]: 2 };    const mapped = map(input, (k, v) => [k, v]);    type _0 = Expect<typeof mapped, Record<string | symbol, number>>;    assertEquals(mapped, input);    // @ts-expect-error    type _1 = Expect<typeof mapped, Record<string, number>>;    // @ts-expect-error    type _2 = Expect<typeof mapped, Record<string | symbol, string>>;  }
  {    const input = new Map<string, string>([["1", "2"], ["3", "4"]]);    const mapped: Map<number, number> = map(      input,      (key, value) => [parseInt(key), parseInt(value)],    );    assertEquals(mapped, new Map([[1, 2], [3, 4]]));  }
  {    const input = ["1", "2", "3"];    const mapped: number[] = map(input, (v) => parseInt(v));    assertEquals(mapped, [1, 2, 3]);  }
  {    const input = new Set(["1", "2", "3"]);    const mapped: Set<number> = map(input, (v) => parseInt(v));    assertEquals(mapped, new Set([1, 2, 3]));  }
  // @ts-expect-error  assertThrows(() => map(null, (k, v) => [k, v]), TypeError);});
type Expect<T, U extends T> = 0;