test: Improve Code Coverage

Author: Rounak-stha

@beautiful-tree/react/src/tests/BeautifulTree.test.tsx

@@ -229,7 +229,7 @@ describe('BeautifulTree : Smart Layout', () => {
 	it('renders small tree, with T-D orientation', () => {
 		const rendered = render(
 			<BeautifulTree
-				id="smart-small-tree"
+				id="smart-small-tree_T-D-orientation"
 				svgProps={{
 					width: 400,
 					height: 400,
@@ -246,14 +246,15 @@ describe('BeautifulTree : Smart Layout', () => {
 	it('renders small tree, with L-R orientation', () => {
 		const rendered = render(
 			<BeautifulTree
-				id="smart-small-tree"
+				id="smart-small-tree_L-R-orientation"
 				svgProps={{
 					width: 400,
 					height: 400,
 				}}
 				tree={smallTree}
 				orientation="L-R"
 				computeLayout={computeSmartLayout}
+				getNodeContent={(data): string => data?.['v']?.toString() ?? ''}
 			/>,
 		)
 
@@ -263,14 +264,15 @@ describe('BeautifulTree : Smart Layout', () => {
 	it('renders small tree, with R-L orientation', () => {
 		const rendered = render(
 			<BeautifulTree
-				id="smart-small-tree"
+				id="smart-small-tree_R-L-orientation"
 				svgProps={{
 					width: 400,
 					height: 400,
 				}}
 				tree={smallTree}
 				orientation="R-L"
 				computeLayout={computeSmartLayout}
+				getNodeContent={(data): string => data?.['v']?.toString() ?? ''}
 			/>,
 		)
 
@@ -280,14 +282,15 @@ describe('BeautifulTree : Smart Layout', () => {
 	it('renders small tree, with D-T orientation', () => {
 		const rendered = render(
 			<BeautifulTree
-				id="smart-small-tree"
+				id="smart-small-tree_D-T-orientation"
 				svgProps={{
 					width: 400,
 					height: 400,
 				}}
 				tree={smallTree}
 				orientation="D-T"
 				computeLayout={computeSmartLayout}
+				getNodeContent={(data): string => data?.['v']?.toString() ?? ''}
 			/>,
 		)