add func logic for bar graph

test/component/use-graph-data.test.tsx

@@ -0,0 +1,58 @@
+import { renderHook } from '@testing-library/react-native';
+import { useGraphData } from '../../component/charts/use-graph-data';
+import { GraphData, Props } from '../../component/charts/graph-types';
+
+describe('useGraphData', () => {
+  it('should return correctly processed data from convertToBarData', () => {
+    // mock values
+    const mockGraphData: GraphData = {
+      xValues: ['full hit', '3/4 ball ball', '1/2 ball'],
+      yValues: [
+        { key: 'left', values: [10, 20, 30] },
+        { key: 'right', values: [40, 50, 60] }
+      ]
+    };
+
+    const mockProps: Partial<Props> = {
+      yAxisProps: {
+        maxLeftYAxisValue: 30,
+        maxRightYAxisValue: 60,
+        selectedLeftYAxisLabel: 'left',
+        selectedRightYAxisLabel: 'right',
+        formatRightYAxisLabel: (value) => `${value}%`,
+        formatLeftYAxisLabel: (value) => `${value}%`
+      }
+    };
+
+
+    const { result } = renderHook(() => useGraphData(mockGraphData, mockProps));
+    // values expected
+    const expectedBarData = [
+      {
+        data: [{ value: 33.33 }, { value: 66.67 }, { value: 100 }],
+        svg: { fill: 'transparent' },
+      },
+      {
+        data: [{ value: 66.67 }, { value: 83.33 }, { value: 100 }],
+        svg: { fill: 'transparent' },
+      },
+    ];
+    const expectedLeftLabels = { key: 'left', values: [10, 20, 30] };
+    const expectedRightLabels = { key: 'right', values: [40, 50, 60] };
+
+
+    expect(result.current).toBeDefined();
+    expect(result.current.xValues).toEqual(['full hit', '3/4 ball ball', '1/2 ball']);
+    result.current.barData.forEach((barDataItem, index) => {
+      barDataItem.data.forEach((dataItem, dataIndex) => {
+        expect(dataItem.value).toBeCloseTo(expectedBarData[index].data[dataIndex].value, 2);
+      });
+    });
+    expect(result.current.yAxisLeftLabels).toEqual(expectedLeftLabels);
+    expect(result.current.yAxisRightLabels).toEqual(expectedRightLabels);
+    expect(result.current.defaultProps.yAxisProps.selectedLeftYAxisLabel).toEqual('left');
+    expect(result.current.defaultProps.yAxisProps.selectedRightYAxisLabel).toEqual('right');
+    expect(result.current.defaultProps).toBeDefined();
+  });
+});
+