fix: hide close button if openVolume is zero (#2768)

libs/positions/src/lib/positions-table.spec.tsx

@@ -172,3 +172,33 @@ it('displays realised and unrealised PNL', async () => {
   expect(cells[9].textContent).toEqual('1.23');
   expect(cells[10].textContent).toEqual('4.56');
 });
+
+it('displays close button', async () => {
+  await act(async () => {
+    render(
+      <PositionsTable
+        rowData={singleRowData}
+        onClose={() => {
+          return;
+        }}
+      />
+    );
+  });
+  const cells = screen.getAllByRole('gridcell');
+  expect(cells[12].textContent).toEqual('Close');
+});
+
+it('do not display close button if openVolume is zero', async () => {
+  await act(async () => {
+    render(
+      <PositionsTable
+        rowData={[{ ...singleRow, openVolume: '0' }]}
+        onClose={() => {
+          return;
+        }}
+      />
+    );
+  });
+  const cells = screen.getAllByRole('gridcell');
+  expect(cells[12].textContent).toEqual('');
+});

libs/positions/src/lib/positions-table.tsx

@@ -381,14 +381,16 @@ export const PositionsTable = forwardRef<AgGridReact, Props>(
         {onClose ? (
           <AgGridColumn
             type="rightAligned"
-            cellRenderer={({ data }: VegaICellRendererParams<Position>) => (
+            cellRenderer={({ data }: VegaICellRendererParams<Position>) =>
+              data?.openVolume && data?.openVolume !== '0' ? (
                 <ButtonLink
                   data-testid="close-position"
                   onClick={() => data && onClose(data)}
                 >
                   {t('Close')}
                 </ButtonLink>
-            )}
+              ) : null
+            }
           />
         ) : null}
       </AgGrid>