import { faker } from "@faker-js/faker";
import { describe, expect, it } from "vitest";
import { NonEmptyString } from "./non-empty-string.js";

describe("NonEmptyString", () => {
  const WHITESPACE_CHARACTERS = {
    NEWLINE: "\n",
    SPACE: " ",
    TAB: "\t",
  };

  it("rejects true", () =>
    // @ts-expect-error because only strings are valid inputs
    expect(NonEmptyString.safeDecode(true).success).toBe(false));

  it("rejects false", () =>
    // @ts-expect-error because only strings are valid inputs
    expect(NonEmptyString.safeDecode(false).success).toBe(false));

  it("rejects integers", { repeats: 10 }, () =>
    // @ts-expect-error because only strings are valid inputs
    expect(NonEmptyString.safeDecode(faker.number.int()).success).toBe(false),
  );

  it("rejects bigints", { repeats: 10 }, () =>
    // @ts-expect-error because only strings are valid inputs
    expect(NonEmptyString.safeDecode(faker.number.bigInt()).success).toBe(
      false,
    ),
  );

  it("rejects floats/numbers", { repeats: 10 }, () =>
    // @ts-expect-error because only strings are valid inputs
    expect(NonEmptyString.safeDecode(faker.number.float()).success).toBe(false),
  );

  it("rejects arrays", () =>
    // @ts-expect-error because only strings are valid inputs
    expect(NonEmptyString.safeDecode([]).success).toBe(false));

  it("rejects plain objects", () =>
    // @ts-expect-error because only strings are valid inputs
    expect(NonEmptyString.safeDecode({}).success).toBe(false));

  it("rejects empty strings", () =>
    expect(NonEmptyString.safeDecode("").success).toBe(false));

  it("rejects strings containing only whitespace characters", () =>
    expect(
      NonEmptyString.safeDecode(
        faker.helpers
          .multiple(() => faker.helpers.enumValue(WHITESPACE_CHARACTERS), {
            count: { min: 1, max: 100 },
          })
          .join(""),
      ).success,
    ).toBe(false));

  it("accepts strings with at least 1 non-whitespsace character", () =>
    expect(
      NonEmptyString.safeDecode(
        faker.string.alphanumeric({ length: { min: 1, max: 255 } }),
      ).success,
    ).toBe(true));
});