Charting: Adding tests for StackedBarChart and MultiStackedBarChart.

packages/react-charting/src/components/StackedBarChart/MultiStackedBarChart.test.tsx

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+jest.mock('react-dom');
+import * as React from 'react';
+import { resetIds } from '../../Utilities';
+import * as renderer from 'react-test-renderer';
+import { mount, ReactWrapper } from 'enzyme';
+import { DefaultPalette } from '@fluentui/react/lib/Styling';
+import { IChartProps, IChartDataPoint, IMultiStackedBarChartProps, MultiStackedBarChart } from '../../index';
+import { IMultiStackedBarChartState, MultiStackedBarChartBase } from './MultiStackedBarChart.base';
+
+// Wrapper of the MultiStackedBarChart to be tested.
+let wrapper: ReactWrapper<IMultiStackedBarChartProps, IMultiStackedBarChartState, MultiStackedBarChartBase> | undefined;
+
+function sharedBeforeEach() {
+  resetIds();
+}
+
+function sharedAfterEach() {
+  if (wrapper) {
+    wrapper.unmount();
+    wrapper = undefined;
+  }
+
+  // Do this after unmounting the wrapper to make sure if any timers cleaned up on unmount are
+  // cleaned up in fake timers world
+  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  if ((global.setTimeout as any).mock) {
+    jest.useRealTimers();
+  }
+}
+
+const firstChartPoints: IChartDataPoint[] = [
+  {
+    legend: 'Debit card numbers (EU and USA)',
+    data: 40,
+    color: DefaultPalette.red,
+    xAxisCalloutData: '2020/04/30',
+    yAxisCalloutData: '40%',
+  },
+  {
+    legend: 'Passport numbers (USA)',
+    data: 23,
+    color: DefaultPalette.green,
+    xAxisCalloutData: '2020/04/30',
+    yAxisCalloutData: '23%',
+  },
+];
+
+const secondChartPoints: IChartDataPoint[] = [
+  {
+    legend: 'Phone Numbers',
+    data: 40,
+    color: DefaultPalette.blue,
+    xAxisCalloutData: '2020/04/30',
+    yAxisCalloutData: '87%',
+  },
+  {
+    legend: 'Credit card Numbers',
+    data: 23,
+    color: DefaultPalette.green,
+    xAxisCalloutData: '2020/04/30',
+    yAxisCalloutData: '87%',
+  },
+];
+
+const chartPoints: IChartProps[] = [
+  {
+    chartTitle: 'Monitored',
+    chartData: firstChartPoints,
+  },
+  {
+    chartTitle: 'Unmonitored',
+    chartData: secondChartPoints,
+  },
+];
+
+describe('MultiStackedBarChart snapShot testing', () => {
+  it('renders MultiStackedBarChart correctly', () => {
+    const component = renderer.create(<MultiStackedBarChart data={chartPoints} />);
+    const tree = component.toJSON();
+    expect(tree).toMatchSnapshot();
+  });
+
+  it('renders hideLegend correctly', () => {
+    const component = renderer.create(<MultiStackedBarChart data={chartPoints} hideLegend={true} />);
+    const tree = component.toJSON();
+    expect(tree).toMatchSnapshot();
+  });
+
+  it('renders hideTooltip correctly', () => {
+    const component = renderer.create(<MultiStackedBarChart data={chartPoints} hideTooltip={true} />);
+    const tree = component.toJSON();
+    expect(tree).toMatchSnapshot();
+  });
+
+  it('renders hideRatio correctly', () => {
+    const component = renderer.create(<MultiStackedBarChart data={chartPoints} hideRatio={[true, false]} />);
+    const tree = component.toJSON();
+    expect(tree).toMatchSnapshot();
+  });
+
+  it('renders hideDenominator correctly', () => {
+    const component = renderer.create(<MultiStackedBarChart data={chartPoints} hideDenominator={[true, true]} />);
+    const tree = component.toJSON();
+    expect(tree).toMatchSnapshot();
+  });
+});
+
+describe('MultiStackedBarChart - basic props', () => {
+  beforeEach(sharedBeforeEach);
+  afterEach(sharedAfterEach);
+
+  it('Should not mount legend when hideLegend true ', () => {
+    wrapper = mount(<MultiStackedBarChart data={chartPoints} hideLegend={true} />);
+    const hideLegendDOM = wrapper.getDOMNode().querySelectorAll('[class^="legendContainer"]');
+    expect(hideLegendDOM!.length).toBe(0);
+  });
+
+  it('Should mount legend when hideLegend false ', () => {
+    wrapper = mount(<MultiStackedBarChart data={chartPoints} />);
+    const hideLegendDOM = wrapper.getDOMNode().querySelectorAll('[class^="legendContainer"]');
+    expect(hideLegendDOM).toBeDefined();
+  });
+
+  it('Should mount callout when hideTootip false ', () => {
+    wrapper = mount(<MultiStackedBarChart data={chartPoints} />);
+    const hideTootipDom = wrapper.getDOMNode().querySelectorAll('[class^="ms-Layer"]');
+    expect(hideTootipDom).toBeDefined();
+  });
+
+  it('Should not mount callout when hideTootip true ', () => {
+    wrapper = mount(<MultiStackedBarChart data={chartPoints} hideTooltip={true} />);
+    const hideTootipDom = wrapper.getDOMNode().querySelectorAll('[class^="ms-Layer"]');
+    expect(hideTootipDom.length).toBe(0);
+  });
+
+  it('Should not mount callout when hideDenominator true ', () => {
+    wrapper = mount(<MultiStackedBarChart data={chartPoints} hideDenominator={[true, true]} />);
+    const hideDenominatorDom = wrapper.getDOMNode().querySelectorAll('[class^="ratioDenominator"]');
+    expect(hideDenominatorDom.length).toBe(0);
+  });
+
+  it('Should not mount callout when hideDenominator false ', () => {
+    wrapper = mount(<MultiStackedBarChart data={chartPoints} />);
+    const hideDenominatorDom = wrapper.getDOMNode().querySelectorAll('[class^="ratioDenominator"]');
+    expect(hideDenominatorDom.length).toBeDefined();
+  });
+
+  it('Should render onRenderCalloutPerDataPoint ', () => {
+    wrapper = mount(
+      <MultiStackedBarChart
+        data={chartPoints}
+        onRenderCalloutPerDataPoint={(props: IChartDataPoint) =>
+          props ? (
+            <div className="onRenderCalloutPerDataPoint">
+              <p>Custom Callout Content</p>
+            </div>
+          ) : null
+        }
+      />,
+    );
+    const renderedDOM = wrapper.getDOMNode().getElementsByClassName('.onRenderCalloutPerDataPoint');
+    expect(renderedDOM).toBeDefined();
+  });
+
+  it('Should not render onRenderCalloutPerDataPoint ', () => {
+    wrapper = mount(<MultiStackedBarChart data={chartPoints} />);
+    const renderedDOM = wrapper.getDOMNode().getElementsByClassName('.onRenderCalloutPerDataPoint');
+    expect(renderedDOM!.length).toBe(0);
+  });
+});
+
+describe('Render calling with respective to props', () => {
+  it('No prop changes', () => {
+    const renderMock = jest.spyOn(MultiStackedBarChartBase.prototype, 'render');
+    const props = {
+      data: chartPoints,
+      height: 300,
+      width: 600,
+    };
+    const component = mount(<MultiStackedBarChart {...props} />);
+    component.setProps({ ...props });
+    expect(renderMock).toHaveBeenCalledTimes(2);
+    renderMock.mockRestore();
+  });
+
+  it('prop changes', () => {
+    const renderMock = jest.spyOn(MultiStackedBarChartBase.prototype, 'render');
+    const props = {
+      data: chartPoints,
+      height: 300,
+      width: 600,
+      hideLegend: true,
+    };
+    const component = mount(<MultiStackedBarChart {...props} />);
+    component.setProps({ ...props, hideTooltip: true });
+    expect(renderMock).toHaveBeenCalledTimes(2);
+    renderMock.mockRestore();
+  });
+});

packages/react-charting/src/components/StackedBarChart/StackedBarChart.test.tsx

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+jest.mock('react-dom');
+import * as React from 'react';
+import { resetIds } from '../../Utilities';
+import * as renderer from 'react-test-renderer';
+import { mount, ReactWrapper } from 'enzyme';
+import { DefaultPalette } from '@fluentui/react/lib/Styling';
+import { IChartProps, IChartDataPoint, IStackedBarChartProps, StackedBarChart } from '../../index';
+import { IStackedBarChartState, StackedBarChartBase } from './StackedBarChart.base';
+
+// Wrapper of the StackedBarChart to be tested.
+let wrapper: ReactWrapper<IStackedBarChartProps, IStackedBarChartState, StackedBarChartBase> | undefined;
+
+function sharedBeforeEach() {
+  resetIds();
+}
+
+function sharedAfterEach() {
+  if (wrapper) {
+    wrapper.unmount();
+    wrapper = undefined;
+  }
+
+  // Do this after unmounting the wrapper to make sure if any timers cleaned up on unmount are
+  // cleaned up in fake timers world
+  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  if ((global.setTimeout as any).mock) {
+    jest.useRealTimers();
+  }
+}
+
+const points: IChartDataPoint[] = [
+  { legend: 'first Lorem ipsum dolor sit amet', data: 40, color: DefaultPalette.magentaDark },
+  { legend: 'Winter is coming', data: 23, color: DefaultPalette.red },
+];
+const chartTitle = 'Stacked bar chart 2nd example';
+
+const chartPoints: IChartProps = {
+  chartTitle: chartTitle,
+  chartData: points,
+};
+
+describe('StackedBarChart snapShot testing', () => {
+  it('renders StackedBarChart correctly', () => {
+    const component = renderer.create(<StackedBarChart data={chartPoints} />);
+    const tree = component.toJSON();
+    expect(tree).toMatchSnapshot();
+  });
+
+  it('renders hideLegend correctly', () => {
+    const component = renderer.create(<StackedBarChart data={chartPoints} hideLegend={true} />);
+    const tree = component.toJSON();
+    expect(tree).toMatchSnapshot();
+  });
+
+  it('renders hideTooltip correctly', () => {
+    const component = renderer.create(<StackedBarChart data={chartPoints} hideTooltip={true} />);
+    const tree = component.toJSON();
+    expect(tree).toMatchSnapshot();
+  });
+
+  it('renders hideNumberDisplay correctly', () => {
+    const component = renderer.create(<StackedBarChart data={chartPoints} hideNumberDisplay={true} />);
+    const tree = component.toJSON();
+    expect(tree).toMatchSnapshot();
+  });
+
+  it('renders hideDenominator correctly', () => {
+    const component = renderer.create(<StackedBarChart data={chartPoints} hideDenominator={true} />);
+    const tree = component.toJSON();
+    expect(tree).toMatchSnapshot();
+  });
+
+  it('renders ignoreFixStyle correctly', () => {
+    const component = renderer.create(<StackedBarChart data={chartPoints} ignoreFixStyle={true} />);
+    const tree = component.toJSON();
+    expect(tree).toMatchSnapshot();
+  });
+
+  it('renders enabledLegendsWrapLines correctly', () => {
+    const component = renderer.create(<StackedBarChart data={chartPoints} enabledLegendsWrapLines={true} />);
+    const tree = component.toJSON();
+    expect(tree).toMatchSnapshot();
+  });
+});
+
+describe('StackedBarChart - basic props', () => {
+  beforeEach(sharedBeforeEach);
+  afterEach(sharedAfterEach);
+
+  it('Should not mount legend when hideLegend true ', () => {
+    wrapper = mount(<StackedBarChart data={chartPoints} hideLegend={true} />);
+    const hideLegendDOM = wrapper.getDOMNode().querySelectorAll('[class^="legendContainer"]');
+    expect(hideLegendDOM!.length).toBe(0);
+  });
+
+  it('Should mount legend when hideLegend false ', () => {
+    wrapper = mount(<StackedBarChart data={chartPoints} />);
+    const hideLegendDOM = wrapper.getDOMNode().querySelectorAll('[class^="legendContainer"]');
+    expect(hideLegendDOM).toBeDefined();
+  });
+
+  it('Should mount callout when hideTootip false ', () => {
+    wrapper = mount(<StackedBarChart data={chartPoints} />);
+    const hideTooltipDom = wrapper.getDOMNode().querySelectorAll('[class^="ms-Layer"]');
+    expect(hideTooltipDom).toBeDefined();
+  });
+
+  it('Should not mount callout when hideTootip true ', () => {
+    wrapper = mount(<StackedBarChart data={chartPoints} hideTooltip={true} />);
+    const hideTooltipDom = wrapper.getDOMNode().querySelectorAll('[class^="ms-Layer"]');
+    expect(hideTooltipDom.length).toBe(0);
+  });
+
+  it('Should not mount callout when hideDenominator true ', () => {
+    wrapper = mount(<StackedBarChart data={chartPoints} hideDenominator={true} />);
+    const hideDenominatorDom = wrapper.getDOMNode().querySelectorAll('[class^="ratioDenominator"]');
+    expect(hideDenominatorDom.length).toBe(0);
+  });
+
+  it('Should not mount callout when hideDenominator false ', () => {
+    wrapper = mount(<StackedBarChart data={chartPoints} />);
+    const hideDenominatorDom = wrapper.getDOMNode().querySelectorAll('[class^="ratioDenominator"]');
+    expect(hideDenominatorDom.length).toBeDefined();
+  });
+
+  it('Should render onRenderCalloutPerDataPoint ', () => {
+    wrapper = mount(
+      <StackedBarChart
+        data={chartPoints}
+        onRenderCalloutPerDataPoint={(props: IChartDataPoint) =>
+          props ? (
+            <div className="onRenderCalloutPerDataPoint">
+              <p>Custom Callout Content</p>
+            </div>
+          ) : null
+        }
+      />,
+    );
+    const renderedDOM = wrapper.getDOMNode().getElementsByClassName('.onRenderCalloutPerDataPoint');
+    expect(renderedDOM).toBeDefined();
+  });
+
+  it('Should not render onRenderCalloutPerDataPoint ', () => {
+    wrapper = mount(<StackedBarChart data={chartPoints} />);
+    const renderedDOM = wrapper.getDOMNode().getElementsByClassName('.onRenderCalloutPerDataPoint');
+    expect(renderedDOM!.length).toBe(0);
+  });
+});
+
+describe('Render calling with respective to props', () => {
+  it('No prop changes', () => {
+    const renderMock = jest.spyOn(StackedBarChartBase.prototype, 'render');
+    const props = {
+      data: chartPoints,
+      height: 300,
+      width: 600,
+    };
+    const component = mount(<StackedBarChart {...props} />);
+    component.setProps({ ...props });
+    expect(renderMock).toHaveBeenCalledTimes(2);
+    renderMock.mockRestore();
+  });
+
+  it('prop changes', () => {
+    const renderMock = jest.spyOn(StackedBarChartBase.prototype, 'render');
+    const props = {
+      data: chartPoints,
+      height: 300,
+      width: 600,
+      hideLegend: true,
+    };
+    const component = mount(<StackedBarChart {...props} />);
+    component.setProps({ ...props, hideTooltip: true });
+    expect(renderMock).toHaveBeenCalledTimes(2);
+    renderMock.mockRestore();
+  });
+});