Function validator

src/index.spec.js:3659–3664

(file)

  describe("validator", () => {
    it("rejects with custom error", async () => {
      const validator = (file) => {
        if (/dogs/i.test(file.name))
          return { code: "dogs-not-allowed", message: "Dogs not allowed" };

        return null;
      };

      const onDropSpy = jest.fn();