lan-manager/web/node_modules/@antv/g6-plugin/tests/unit/image-minimap-spec.ts

import G6 from '@antv/g6';
import Simulate from 'event-simulate';
import ImageMinimap from '../../src/imageMinimap';

const numberEqual = (a: number, b: number, gap?: number) => {
  return Math.abs(a - b) <= (gap || 0.001);
};

const div = document.createElement('div');
div.id = 'image-minimap-spec';
document.body.appendChild(div);

describe('image minimap', () => {
  let graph;
  const minimap = new ImageMinimap({
    width: 200,
    padding: 10,
    graphImg:
      'https://gw.alipayobjects.com/mdn/rms_f8c6a0/afts/img/A*DcGMQ7AN3Z0AAAAAAAAAAABkARQnAQ',
  });
  fetch('https://gw.alipayobjects.com/os/antvdemo/assets/data/algorithm-category.json')
    .then((res) => res.json())
    .then((data) => {
      graph = new G6.TreeGraph({
        container: div,
        width: 800,
        height: 600,
        plugins: [minimap],
        defaultNode: {
          size: 26,
          anchorPoints: [
            [0, 0.5],
            [1, 0.5],
          ],
          style: {
            fill: 'rgb(239, 244, 255)',
            stroke: 'rgb(95, 149, 255)',
          },
        },
        defaultEdge: {
          type: 'cubic-horizontal',
          style: {
            stroke: '#A3B1BF',
          },
        },
        layout: {
          type: 'dendrogram',
          direction: 'LR', // H / V / LR / RL / TB / BT
          nodeSep: 30,
          rankSep: 100,
        },
      });
      graph.node(function (node) {
        return {
          label: node.id,
          labelCfg: {
            position: node.children && node.children.length > 0 ? 'left' : 'right',
            offset: 5,
          },
        };
      });
      graph.data(data);
      graph.render();
    });

  it('default image minimap', (done) => {
    done();
    window.setTimeout(() => {
      const container = minimap.getContainer();
      expect(container).not.toBe(undefined);
      const viewport = minimap.getViewport();
      expect(viewport).not.toBe(undefined);
      let left = parseFloat(viewport.style.left.split('px')[0]);
      let top = parseFloat(viewport.style.top.split('px')[0]);
      let width = parseFloat(viewport.style.width.split('px')[0]);
      let height = parseFloat(viewport.style.height.split('px')[0]);
      expect(numberEqual(left, 63, 5)).toEqual(true);
      expect(numberEqual(top, 90, 5)).toEqual(true);
      expect(numberEqual(width, 137, 5)).toEqual(true);
      expect(numberEqual(height, 59, 5)).toEqual(true);

      Simulate.simulate(viewport, 'mousedown', {
        clientX: 100,
        clientY: 100,
        target: viewport,
      });

      Simulate.simulate(viewport, 'mousemove', {
        clientX: 50,
        clientY: 100,
      });

      Simulate.simulate(viewport, 'mouseup', {
        clientX: 50,
        clientY: 100,
      });

      setTimeout(() => {
        left = parseFloat(viewport.style.left.split('px')[0]);
        top = parseFloat(viewport.style.top.split('px')[0]);
        width = parseFloat(viewport.style.width.split('px')[0]);
        height = parseFloat(viewport.style.height.split('px')[0]);
        expect(numberEqual(left, 33, 2)).toEqual(true);
        expect(numberEqual(top, 90, 2)).toEqual(true);
        expect(numberEqual(width, 158, 2)).toEqual(true);
        expect(numberEqual(height, 59, 2)).toEqual(true);

        minimap.updateGraphImg(
          'https://gw.alipayobjects.com/mdn/rms_f8c6a0/afts/img/A*7QSRRJwAWxQAAAAAAAAAAABkARQnAQ',
        );
        const imgDOM = minimap.get('imgDOM');
        expect(imgDOM.src).toEqual(
          'https://gw.alipayobjects.com/mdn/rms_f8c6a0/afts/img/A*7QSRRJwAWxQAAAAAAAAAAABkARQnAQ',
        );

        graph.destroy();
        expect(minimap.destroyed).toEqual(true);

        done();
      }, 100);
    }, 800);
  });
});