test(CarbonFootprintSubmodel): Add tests for CO2 Equivalent View

Description
Added component tests to verify that the total CO2 Equivalents are displayed correctly

Fixes # (MNES-1365)

Type of change
[x] Minor change (non-breaking change, e.g. documentation adaption)

src/app/[locale]/viewer/_components/submodel/carbon-footprint/visualization-components/CO2Equivalents.spec.tsx

@@ -0,0 +1,35 @@
+import { screen } from '@testing-library/react';
+import { expect } from '@jest/globals';
+import { CustomRenderReactIntl } from 'test-utils/CustomRenderReactIntl';
+import { CO2Equivalents } from 'app/[locale]/viewer/_components/submodel/carbon-footprint/visualization-components/CO2Equivalents';
+
+describe('CarbonFootprint - CO2 Equivalents', () => {
+    it('should use correct style', async () => {
+        CustomRenderReactIntl(<CO2Equivalents totalCO2Equivalents={7.125} />);
+        const component = screen.getByTestId('co2-equivalents');
+        expect(component).toBeDefined();
+        expect(component).toBeInTheDocument();
+        expect(component).toHaveStyle('color: rgb(25, 118, 210)');
+        expect(component).toHaveStyle('fontSize: [72, 96]');
+        expect(component).toHaveStyle('font-weight: 700');
+        expect(component).toHaveStyle('lineHeight: 1');
+    });
+
+    it('should display three digit number', async () => {
+        CustomRenderReactIntl(<CO2Equivalents totalCO2Equivalents={7.125} />);
+        const component = screen.getByTestId('co2-equivalents');
+        expect(component).toHaveTextContent('7.125 kg');
+    });
+
+    it('should round to three digits', async () => {
+        CustomRenderReactIntl(<CO2Equivalents totalCO2Equivalents={7.125857} />);
+        const component = screen.getByTestId('co2-equivalents');
+        expect(component).toHaveTextContent('7.126 kg');
+    });
+
+    it('should not fill to three digits', async () => {
+        CustomRenderReactIntl(<CO2Equivalents totalCO2Equivalents={7.1} />);
+        const component = screen.getByTestId('co2-equivalents');
+        expect(component).toHaveTextContent('7.1 kg');
+    });
+});

src/app/[locale]/viewer/_components/submodel/carbon-footprint/visualization-components/CO2Equivalents.tsx

@@ -5,7 +5,10 @@ const unit = 'kg';
 
 export function CO2Equivalents(props: { totalCO2Equivalents: number }) {
     return (
-        <Typography sx={{ color: 'primary.main', fontSize: [72, 96], fontWeight: 'bold', lineHeight: 1 }}>
+        <Typography
+            sx={{ color: 'primary.main', fontSize: [72, 96], fontWeight: 'bold', lineHeight: 1 }}
+            data-testid="co2-equivalents"
+        >
             {`${cutDecimalPlaces(props.totalCO2Equivalents, 3)} ${unit}`}
         </Typography>
     );