@Test
public void testGetInstance() throws Exception {

	String script = "edb.addEmployee(\"Test\",35.5);";
	EmployeeDataBase employeeDataBase = EmployeeDataBase.getInstance(script);
	Collection<Employee> employees = employeeDataBase.getEmployees();
	assertFalse(employees.isEmpty());
	Employee employee = employees.iterator().next();
	assertEquals("Test", employee.getName());
	assertEquals(35.5, employee.getWageRate(), 0.001);
}