一种方法是使用反射摆脱
final字段中的修饰符，然后
LOGGER用模拟的字段替换字段
public class Class1Test { @Test public void test() throws Exception { Logger logger = Mockito.mock(Logger.class); Mockito.when(logger.isInfoEnabled()).thenReturn(false); setFinalStatic(Class1.class.getDeclaredField("LOGGER"), logger); Class1 cls1 = new Class1(); assertFalse(cls1.demoMethod()); } static void setFinalStatic(Field field, Object newValue) throws Exception { field.setAccessible(true); Field modifiersField = Field.class.getDeclaredField("modifiers"); modifiersField.setAccessible(true); modifiersField.setInt(field, field.getModifiers() & ~Modifier.FINAL); field.set(null, newValue); }}
