feat: update test for limit

Author: dongbanban

src/hooks/useSearchConfig.ts

@@ -1,4 +1,3 @@
-
 import warning from 'rc-util/lib/warning';
 import * as React from 'react';
 import type { CascaderProps, ShowSearchType } from '../Cascader';
@@ -22,8 +21,8 @@ export default function useSearchConfig(showSearch?: CascaderProps['showSearch']
       };
     }
 
-    if ((searchConfig.limit as number) <= 0) {
-      searchConfig.limit = false;
+    if ((searchConfig.limit as number) <= 0 && searchConfig.limit !== false) {
+      delete searchConfig.limit;
 
       if (process.env.NODE_ENV !== 'production') {
         warning(false, "'limit' of showSearch should be positive number or false.");

tests/search.limit.spec.tsx

@@ -41,4 +41,36 @@ describe('Cascader.Search', () => {
     const itemList = wrapper.find('div.rc-cascader-menu-item-content');
     expect(itemList).toHaveLength(itemList.length);
   });
+
+  it('limit', () => {
+    const wrapper = mount(
+      <Cascader
+        options={options}
+        open
+        showSearch={{
+          limit: 0,
+        }}
+      />,
+    );
+
+    doSearch(wrapper, 'as');
+    const itemList = wrapper.find('div.rc-cascader-menu-item-content');
+    expect(itemList).toHaveLength(50);
+  });
+
+  it('limit', () => {
+    const wrapper = mount(
+      <Cascader
+        options={options}
+        open
+        showSearch={{
+          limit: 20,
+        }}
+      />,
+    );
+
+    doSearch(wrapper, 'as');
+    const itemList = wrapper.find('div.rc-cascader-menu-item-content');
+    expect(itemList).toHaveLength(20);
+  });
 });