Menambah test untuk fungsi handleSelectChange

assets/js/__test__/components/CompanyRegisterModal-test.jsx

 import React from 'react';
 import ReactTestUtils from 'react-dom/test-utils';
-import CompanyRegisterModal from '../../components/CompanyRegisterModal';
 import ReactDOM from 'react-dom';
 
+import CompanyRegisterModal from '../../components/CompanyRegisterModal';
+
 describe('CompanyRegisterModal', () => {
   let container;
 
@@ -70,4 +71,13 @@ describe('CompanyRegisterModal', () => {
     expect(modal.state.email).to.equal('kape@kape.com');
   });
 
+  it('handle handleSelectChange without problem', () => {
+    const modal = ReactTestUtils.renderIntoDocument(
+      <CompanyRegisterModal/>
+  );
+    
+    modal.handleSelectChange({}, { name: 'category', value: 'kape@kape.com' });
+    expect(modal.state.category).to.equal('kape@kape.com');
+  });
+
 })
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