Test class for my controller class

@isTest
private class ClsAccountController_Test {
    private static testmethod void testStdCntrl(){
        Account testAccount = new Account(Name='Test Company Name123');
        insert testAccount;
        ApexPages.StandardController sc = new ApexPages.StandardController(testAccount);
        ClsAccountController accCon = new ClsAccountController(sc);
        PageReference pageRef = Page.demo;
        pageRef.getParameters().put('id', String.valueOf(testAccount.Id));
        Test.setCurrentPage(pageRef);
    }
     private static testmethod void testCntrl(){
        Account testAccount = new Account(Name='Test Company Name123');
        insert testAccount;
        ClsAccountController accCon = new ClsAccountController();
        PageReference pageRef = Page.demo;
        pageRef.getParameters().put('id', String.valueOf(testAccount.Id));
        Test.setCurrentPage(pageRef);
    }
}