[charts] Test pointer events (#14042)

packages/x-charts/src/BarChart/checkClickEvent.test.tsx

@@ -0,0 +1,155 @@
+import * as React from 'react';
+import { expect } from 'chai';
+import { createRenderer, fireEvent } from '@mui/internal-test-utils';
+import { spy } from 'sinon';
+import { BarChart } from '@mui/x-charts/BarChart';
+import { firePointerEvent } from '../tests/firePointerEvent';
+
+const config = {
+  dataset: [
+    { x: 'A', v1: 4, v2: 2 },
+    { x: 'B', v1: 1, v2: 1 },
+  ],
+  margin: { top: 0, left: 0, bottom: 0, right: 0 },
+  width: 400,
+  height: 400,
+};
+
+// Plot as follow to simplify click position
+//
+// | X
+// | X
+// | X X
+// | X X X X
+// ---A---B-
+
+const isJSDOM = /jsdom/.test(window.navigator.userAgent);
+
+describe('BarChart - click event', () => {
+  const { render } = createRenderer();
+
+  describe('onAxisClick', () => {
+    it('should provide the right context as second argument', function test() {
+      if (isJSDOM) {
+        // can't do Pointer event with JSDom https://github.com/jsdom/jsdom/issues/2527
+        this.skip();
+      }
+      const onAxisClick = spy();
+      render(
+        <div
+          style={{
+            margin: -8, // Removes the body default margins
+            width: 400,
+            height: 400,
+          }}
+        >
+          <BarChart
+            {...config}
+            series={[
+              { dataKey: 'v1', id: 's1' },
+              { dataKey: 'v2', id: 's2' },
+            ]}
+            xAxis={[{ scaleType: 'band', dataKey: 'x' }]}
+            onAxisClick={onAxisClick}
+          />
+        </div>,
+      );
+      const svg = document.querySelector<HTMLElement>('svg')!;
+
+      firePointerEvent(svg, 'pointermove', {
+        clientX: 198,
+        clientY: 60,
+      });
+      fireEvent.click(svg);
+
+      expect(onAxisClick.lastCall.args[1]).to.deep.equal({
+        dataIndex: 0,
+        axisValue: 'A',
+        seriesValues: { s1: 4, s2: 2 },
+      });
+
+      firePointerEvent(svg, 'pointermove', {
+        clientX: 201,
+        clientY: 60,
+      });
+      fireEvent.click(svg);
+
+      expect(onAxisClick.lastCall.args[1]).to.deep.equal({
+        dataIndex: 1,
+        axisValue: 'B',
+        seriesValues: { s1: 1, s2: 1 },
+      });
+    });
+  });
+
+  describe('onItemClick', () => {
+    it('should add cursor="pointer" to bar elements', function test() {
+      render(
+        <BarChart
+          {...config}
+          series={[
+            { dataKey: 'v1', id: 's1' },
+            { dataKey: 'v2', id: 's2' },
+          ]}
+          xAxis={[{ scaleType: 'band', dataKey: 'x' }]}
+          onItemClick={() => {}}
+        />,
+      );
+      const rectangles = document.querySelectorAll<HTMLElement>('rect.MuiBarElement-root');
+
+      expect(
+        Array.from(rectangles).map((rectangle) => rectangle.getAttribute('cursor')),
+      ).to.deep.equal(['pointer', 'pointer', 'pointer', 'pointer']);
+    });
+
+    it('should provide the right context as second argument', function test() {
+      if (isJSDOM) {
+        // can't do Pointer event with JSDom https://github.com/jsdom/jsdom/issues/2527
+        this.skip();
+      }
+      const onItemClick = spy();
+      render(
+        <div
+          style={{
+            margin: -8, // No idea why, but that make the SVG coordinates match the HTML coordinates
+            width: 400,
+            height: 400,
+          }}
+        >
+          <BarChart
+            {...config}
+            series={[
+              { dataKey: 'v1', id: 's1' },
+              { dataKey: 'v2', id: 's2' },
+            ]}
+            xAxis={[{ scaleType: 'band', dataKey: 'x' }]}
+            onItemClick={onItemClick}
+          />
+        </div>,
+      );
+
+      const rectangles = document.querySelectorAll<HTMLElement>('rect.MuiBarElement-root');
+
+      fireEvent.click(rectangles[0]);
+      expect(onItemClick.lastCall.args[1]).to.deep.equal({
+        type: 'bar',
+        seriesId: 's1',
+        dataIndex: 0,
+      });
+
+      fireEvent.click(rectangles[1]);
+      expect(onItemClick.lastCall.args[1]).to.deep.equal({
+        type: 'bar',
+        seriesId: 's1',
+        dataIndex: 1,
+      });
+
+      fireEvent.click(rectangles[2]);
+      expect(onItemClick.lastCall.args[1]).to.deep.equal({
+        type: 'bar',
+        seriesId: 's2',
+        dataIndex: 0,
+      });
+    });
+  });
+});