YueWen/node_modules/@jimp/plugin-flip/test/flipping.test.js

import { Jimp, mkJGD } from '@jimp/test-utils';

import configure from '@jimp/custom';

import flip from '../src';

const jimp = configure({ plugins: [flip] }, Jimp);

describe('Flipping plugin', () => {
  it('can flip horizontally', async () => {
    const src = await jimp.read(
      mkJGD(
        'AAAABBBB',
        'AAABAAAB',
        'ABABABAB',
        'CCCCCCCC',
        'CCCCCCCC',
        'CCCCCCCC',
        'AACCCCAA'
      )
    );

    const result = src.flip(true, false);

    result
      .getJGDSync()
      .should.be.sameJGD(
        mkJGD(
          'BBBBAAAA',
          'BAAABAAA',
          'BABABABA',
          'CCCCCCCC',
          'CCCCCCCC',
          'CCCCCCCC',
          'AACCCCAA'
        )
      );
  });

  it('can flip vertically', async () => {
    const src = await jimp.read(
      mkJGD(
        'AAAABBBB',
        'AAABAAAB',
        'ABABABAB',
        'CCCCCCCC',
        'CCCCCCCC',
        'CCCCCCCC',
        'AACCCCAA'
      )
    );

    const result = src.flip(false, true);

    result
      .getJGDSync()
      .should.be.sameJGD(
        mkJGD(
          'AACCCCAA',
          'CCCCCCCC',
          'CCCCCCCC',
          'CCCCCCCC',
          'ABABABAB',
          'AAABAAAB',
          'AAAABBBB'
        )
      );
  });

  it('can flip both horizontally and vertically at once', async () => {
    const src = await jimp.read(
      mkJGD(
        'AAAABBBB',
        'AAABAAAB',
        'ABABABAB',
        'CCCCCCCC',
        'CCCCCCCC',
        'CCCCCCCC',
        'AACCCCAA'
      )
    );

    const result = src.flip(true, true);

    result
      .getJGDSync()
      .should.be.sameJGD(
        mkJGD(
          'AACCCCAA',
          'CCCCCCCC',
          'CCCCCCCC',
          'CCCCCCCC',
          'BABABABA',
          'BAAABAAA',
          'BBBBAAAA'
        )
      );
  });
});