fix(hitsPerPageSelector): Issue when state did not have a hitsPerPage

Author: ElPicador

widgets/hits-per-page-selector/__tests__/hits-per-page-selector-test.js

@@ -102,6 +102,13 @@ describe('hitsPerPageSelector()', () => {
     }).toThrow(/No option in `options` with `value: -1`/);
   });
 
+  it('should not throw an error if state does not have a `hitsPerPage`', () => {
+    delete helper.state.hitsPerPage;
+    expect(() => {
+      widget.init(helper.state, helper);
+    }).toNotThrow(/No option in `options`/);
+  });
+
   afterEach(() => {
     hitsPerPageSelector.__ResetDependency__('ReactDOM');
     hitsPerPageSelector.__ResetDependency__('autoHideContainer');

widgets/hits-per-page-selector/hits-per-page-selector.js

@@ -41,8 +41,12 @@ function hitsPerPageSelector({
   return {
     init: function(state) {
       let isCurrentInOptions = reduce(options, function(res, option) {
+        if (state.hitsPerPage === undefined) {
+          return true;
+        }
         return res || +state.hitsPerPage === +option.value;
       }, false);
+
       if (!isCurrentInOptions) {
         throw new Error('[hitsPerPageSelector]: No option in `options` with `value: ' + state.hitsPerPage + '`');
       }