test(pie): 补充单测

Author: visiky

__tests__/unit/plots/pie/index-spec.ts

@@ -20,6 +20,9 @@ describe('pie', () => {
     });
 
     pie.render();
+    expect(pie.type).toBe('pie');
+    // @ts-ignore
+    expect(pie.getDefaultOptions()).toBe(Pie.getDefaultOptions());
 
     const geometry = pie.chart.geometries[0];
     const elements = geometry.elements;

__tests__/unit/plots/pie/statistic-spec.ts

@@ -1,5 +1,6 @@
 import { Chart } from '@antv/g2';
 import { Pie, PieOptions } from '../../../../src';
+import { DEFAULT_OPTIONS } from '../../../../src/plots/pie/contants';
 import { POSITIVE_NEGATIVE_DATA } from '../../../data/common';
 import { delay } from '../../../utils/delay';
 import { createDiv } from '../../../utils/dom';
@@ -301,6 +302,22 @@ describe('中心文本 - 指标卡', () => {
     expect(htmlAnnotations[0].getBoundingClientRect().width).toEqual(600);
   });
 
+  it('statistic 默认继承 defaultOptions', () => {
+    pie.update({ statistic: null });
+    expect(pie.chart.ele.querySelectorAll('.g2-html-annotation').length).toBe(0);
+
+    pie.update({ statistic: {} });
+    expect(pie.chart.ele.querySelectorAll('.g2-html-annotation').length).toBe(2);
+    expect(pie.options.statistic).toEqual({});
+    setTimeout(() => {
+      // @ts-ignore
+      const annotations = pie.chart.ele.querySelectorAll('.g2-html-annotation') as HTMLDivElement[];
+      expect(annotations[0].style.fontSize).toEqual(DEFAULT_OPTIONS.statistic.title.fontSize);
+      expect(annotations[1].style.color).toEqual(DEFAULT_OPTIONS.statistic.content.color);
+      expect(annotations[1].style).toMatchObject(DEFAULT_OPTIONS.statistic.content);
+    }, 0);
+  });
+
   afterEach(() => {
     pie.chart.clear();
   });