@Test public void testSelectQuery() { String query = "SELECT * FROM customers WHERE id='123'"; Listcustomers = executeClassSql(query); Customer customer = customers.get(0); assertNotNull(customer); assertEquals("John", customer.getName()); }
@Test public void testInsertQuery() { String query = "INSERT INTO customers (id, name, address) VALUES ('123', 'John', '123 Main St')"; int rowsAffected = executeClassSql(query); assertEquals(1, rowsAffected); }In this example, we execute an insert query to add a new customer to the database. We use the executeClassSql method to execute the query and store the number of rows affected in a variable. We then assert that the number of rows affected is equal to 1, indicating that the query was successful. Package Library: Based on the naming convention and the class structure, it can be determined that the org.junit Assert executeClassSql method belongs in the JUnit library.