// Copyright 2017-2021 @polkadot/types authors & contributors
// SPDX-License-Identifier: Apache-2.0

import { typeSplit } from '.';

describe('typeSplit', (): void => {
  it('splits simple types into an array', (): void => {
    expect(
      typeSplit('Text, u32, u64')
    ).toEqual(['Text', 'u32', 'u64']);
  });

  it('splits nested combinations', (): void => {
    expect(
      typeSplit('Text, (u32), Vec<u64>')
    ).toEqual(['Text', '(u32)', 'Vec<u64>']);
  });

  it('keeps nested tuples together', (): void => {
    expect(
      typeSplit('Text, (u32, u128), Vec<u64>')
    ).toEqual(['Text', '(u32, u128)', 'Vec<u64>']);
  });

  it('keeps nested vector tuples together', (): void => {
    expect(
      typeSplit('Text, (u32, u128), Vec<(u64, u32)>')
    ).toEqual(['Text', '(u32, u128)', 'Vec<(u64, u32)>']);
  });

  it('allows for deep nesting', (): void => {
    expect(
      typeSplit('Text, (u32, (u128, u8)), Vec<(u64, (u32, u32))>')
    ).toEqual(['Text', '(u32, (u128, u8))', 'Vec<(u64, (u32, u32))>']);
  });

  it('checks for unclosed vec', (): void => {
    expect(
      (): string[] => typeSplit('Text, Vec<u64')
    ).toThrow(/Invalid definition/);
  });

  it('checks for unclosed tuple', (): void => {
    expect(
      (): string[] => typeSplit('Text, (u64, u32')
    ).toThrow(/Invalid definition/);
  });
});