Mockito调用静态方法和void方法

1 mock 静态方法

mockito库并不能mock静态方法，需要依赖powermock

第一步：给类添加注解

// 静态类优先加载，所以需要提前告诉powermock哪些静态类需要mock 

public class SupplierServiceImplTest extends PowerMockTestCase {}

第二步：mock使用

@Test(expectedExceptions = BusinessException.class) public void testAddSupplierAccount_genIdentityNoError() {     // 告诉powermock，需要mock该类的所有静态方法 	PowerMockito.mockStatic(PasswordGenerator.class);  	final SupplierAccountDto supplierAccountDto = new SupplierAccountDto(); 	supplierAccountDto.setName("小明"); 	final String randomPWd = "666";  	PowerMockito.when(supplierDao.selectByEmail(anyString())) 			.thenReturn(new ArrayList<HaitaoSupplier>()); 	// 静态方法mock 	PowerMockito.when(PasswordGenerator.genPwd()).thenReturn(randomPWd); 	PowerMockito.when(pwEncoder.encode(anyString())).thenReturn(randomPWd); 	PowerMockito.when(identityNoGenerator.genIdentityNo()).thenReturn(-1L);  	supplierServiceImpl.addSupplierAccount(supplierAccountDto);  	verify(pwEncoder).encode(randomPWd); }

2 mock void 方法

// void嘛，doNothing顾名思义 PowerMockito.doNothing().when(casService).addSupplier(anyLong(), any(ServiceKey.class));

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