Spring单元测试[webflux，cloud]

Question

我是单元测试主题的新手，我的问题是我是否应该对方法的每一行代码执行测试，或者我可以用什么方式执行这些测试以获得良好的覆盖率，如果也是，是否应该评估异常？

例如，如果我有这个服务方法，它也使用一些与其他微服务通信的助手，有人可以给我一些如何执行的例子，非常感谢。

public Mono<BankAccountDto> save(BankAccountDto bankAccount) {
var count = findAccountsByCustomerId(bankAccount.getCustomerId()).count();
var customerDto = webClientCustomer
.findCustomerById(bankAccount.getCustomerId());
var accountType = bankAccount.getAccountType();
return customerDto
.zipWith(count)
.flatMap(tuple -> {
final CustomerDto custDto = tuple.getT1();
final long sizeAccounts = tuple.getT2();
final var customerType = custDto.getCustomerType();

if (webClientCustomer.isCustomerAuthorized(customerType, accountType, sizeAccounts)) {
return saveBankAccountAndRole(bankAccount);
}
return Mono.error(new Exception("....."));
});
}

---

编辑

public Mono<BankAccountDto> save(BankAccountDto bankAccount) {
var count = findAccountsByCustomerId(bankAccount.getCustomerId()).count();
var customerDto = webClientCustomer
.findCustomerById(bankAccount.getCustomerId());
return customerDto
.zipWith(count)
.flatMap(tuple -> {
final var customDto = tuple.getT1();
final var sizeAccounts = tuple.getT2();
final var accountType = bankAccount.getAccountType();
// EDITED
return webClientCustomer.isCustomerAuthorized(customDto, accountType, sizeAccounts)
.flatMap(isAuthorized -> {
if (Boolean.TRUE.equals(isAuthorized)) {
return saveBankAccountAndRole(bankAccount);
}
return Mono.error(new Exception("No tiene permisos para registrar una cuenta bancaria"));
});
});
}

Answer 1

如果您想对该代码进行单元测试，则需要模拟webClientCustomer等依赖关系。

然后，您应该始终测试代码中的任何相关路径。查看您的代码，我只看到三个需要测试的相关代码：

• 如果webClientCustomer.findCustomerById(bankAccount.getCustomerId());返回空的Mono，则该方法返回空Mono
• 调用saveBankAccountAndRole(bankAccount)，save()方法实际返回saveBankAccountAndRole(bankAccount)返回的任何内容。如果webClientCustomer.isCustomerAuthorized(customerType, accountType, sizeAccounts)是true，则应该发生这种情况
• 如果CCD_ 10是CCD_