test: add unit test

__tests__/bugs/bug-dual-axes-same-y-spec.ts

@@ -0,0 +1,73 @@
+import { DualAxes } from '../../src';
+import { createDiv } from '../utils/dom';
+
+const uv = [
+  { time: '2019-03', value: 350, type: 'uv' },
+  { time: '2019-04', value: 900, type: 'uv' },
+  { time: '2019-05', value: 300, type: 'uv' },
+  { time: '2019-06', value: 450, type: 'uv' },
+  { time: '2019-07', value: 470, type: 'uv' },
+  { time: '2019-03', value: 220, type: 'bill' },
+  { time: '2019-04', value: 300, type: 'bill' },
+  { time: '2019-05', value: 250, type: 'bill' },
+  { time: '2019-06', value: 220, type: 'bill' },
+  { time: '2019-07', value: 362, type: 'bill' },
+];
+
+const pv = [
+  { time: '2019-03', value: 800, name: 'a' },
+  { time: '2019-04', value: 600, name: 'a' },
+  { time: '2019-05', value: 400, name: 'a' },
+  { time: '2019-06', value: 380, name: 'a' },
+  { time: '2019-07', value: 220, name: 'a' },
+  { time: '2019-03', value: 750, name: 'b' },
+  { time: '2019-04', value: 650, name: 'b' },
+  { time: '2019-05', value: 450, name: 'b' },
+  { time: '2019-06', value: 400, name: 'b' },
+  { time: '2019-07', value: 320, name: 'b' },
+  { time: '2019-03', value: 900, name: 'c' },
+  { time: '2019-04', value: 600, name: 'c' },
+  { time: '2019-05', value: 450, name: 'c' },
+  { time: '2019-06', value: 300, name: 'c' },
+  { time: '2019-07', value: 200, name: 'c' },
+];
+
+describe('dual-axes same y fields', () => {
+  it('same y fields', () => {
+    const dualAxes = new DualAxes(createDiv(), {
+      data: [uv, pv],
+      xField: 'time',
+      yField: ['value', 'value'],
+      yAxis: [
+        {
+          title: {
+            text: 'y1',
+          },
+        },
+        {
+          title: {
+            text: 'y2',
+          },
+        },
+      ],
+      geometryOptions: [
+        {
+          geometry: 'line',
+          seriesField: 'type',
+        },
+        {
+          geometry: 'column',
+          seriesField: 'name',
+          point: {},
+        },
+      ],
+    });
+
+    dualAxes.render();
+
+    expect(dualAxes.chart.views[0].getController('axis').getComponents()[0].component.get('title').text).toBe('y1');
+    expect(dualAxes.chart.views[1].getController('axis').getComponents()[0].component.get('title').text).toBe('y2');
+
+    dualAxes.destroy();
+  });
+});