rxjava 3
当我的RX链子应该引发例外但面临问题时，我正在尝试测试情况。当我尝试调用asserterror（error）时，它说找不到错误。这里的示例：
fun isAvailable(): Single<String> {
return mapper.getSymbol().map { symbol ->
if (repository.isAvailable(symbol)) {
symbol
} else {
throw Exception("Symbol is not available")
}
}
}
在测试中，我模拟存储库返回false，然后做类似的事情：
val error = Exception("Symbol is not available")
whenever(mapper.getSymbol()).thenReturn(
Single.just(
symbol
)
)
whenever(repository.isAvailable(symbol)).thenReturn(false)
val test = symbolsRepository.isAvailable().test()
test.await()
.assertError(error)
但是当我运行测试时，我会看到 错误不存在（闩锁= 0，值= 0，错误= 1，完成= 0） 引起：java.lang.exception：符号不可用
I'm trying to test case when my rx chain should throw an exception but facing problem with it. When I'm trying to call assertError(error) it says that no error found. Here's example:
fun isAvailable(): Single<String> {
return mapper.getSymbol().map { symbol ->
if (repository.isAvailable(symbol)) {
symbol
} else {
throw Exception("Symbol is not available")
}
}
}
In test I mock repository to return false and after do something like:
val error = Exception("Symbol is not available")
whenever(mapper.getSymbol()).thenReturn(
Single.just(
symbol
)
)
whenever(repository.isAvailable(symbol)).thenReturn(false)
val test = symbolsRepository.isAvailable().test()
test.await()
.assertError(error)
But when I run test I see
Error not present (latch = 0, values = 0, errors = 1, completions = 0)
Caused by: java.lang.Exception: Symbol is not available
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评论（1）
正如@gpunto所说，
asserterror确实等于exception，默认情况下没有实现标准Java中的参考平等。您可以使用另外两个
asserterror的过载来检查异常类及其消息：As @gpunto said,
assertErrordoes equals check on theExceptionand those are not implemented by default beyond reference equality in standard Java.You could use two other overloads of
assertErrorto check for both the exception class and its message: