如何在 Python 中使用 grpcio-testing 测试 ServiceInterceptor
我有一个像这样的原型文件
syntax = "proto3";
package hello;
message HelloRequest {
}
message HelloResponse {
}
service HelloService {
rpc UnaryUnaryHello (HelloRequest) returns (HelloResponse) {}
rpc UnaryStreamHello (HelloRequest) returns (stream HelloResponse) {}
rpc StreamUnaryHello (stream HelloRequest) returns (HelloResponse) {}
rpc StreamStreamHello (stream HelloRequest) returns (stream HelloResponse) {}
}
,然后我为其生成了基本服务程序和存根。
我还为其创建了一个服务器拦截器,MyServerInterceptor
。
现在我尝试使用 grpcio-testing 测试拦截器,但是不能'搞不懂。实际上,我找不到有关如何使用该库的任何文档,这看起来像已知问题< /a>.
从那个问题中,我找到了 这个示例,但是我不知道如何将拦截器添加到测试服务器。
此外,测试使用较低级别描述符的方式似乎相当笨拙。有没有办法使用生成的存根来发出请求?
最后,该示例显示将字典 {}
作为 invocable_metadata
传递,但我认为 involution_metadata
应该是元组列表 List [元组[str,str]]
?
I have a proto file like
syntax = "proto3";
package hello;
message HelloRequest {
}
message HelloResponse {
}
service HelloService {
rpc UnaryUnaryHello (HelloRequest) returns (HelloResponse) {}
rpc UnaryStreamHello (HelloRequest) returns (stream HelloResponse) {}
rpc StreamUnaryHello (stream HelloRequest) returns (HelloResponse) {}
rpc StreamStreamHello (stream HelloRequest) returns (stream HelloResponse) {}
}
And then I've generated the base servicer and stubs for it.
I also created a server interceptor for it, MyServerInterceptor
.
Now I am trying to test the interceptor using grpcio-testing, but can't figure it out. I am actually having trouble finding any documentation on how to use the library, which looks like a known issue.
From that issue, I found this example, however I can't figure out how to add interceptors to the test server.
Also, the way the tests use the lower level DESCRIPTORS seems rather clunky. Is there a way to use the generated stubs to make the requests?
Finally, the example shows passing a dict {}
as invocation_metadata
, but I thought invocation_metadata
was supposed to be a list of tuples List[Tuple[str,str]]
?
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您发布的示例尚未合并。我建议使用实际的 gRPC 客户端/服务器而不是模拟库来测试 Python 中的 gRPC 服务。通过这种方式,您可以像客户端一样测试服务器逻辑。
您对元数据类型的看法是正确的,它应该是
List[Tuple[str, str]
。The example you posted is not merged yet. I would recommend to test the gRPC service in Python with actual gRPC client/server instead of the mocking library. In this way, you are testing the server logic in the way that a client would.
And you are right about the metadata type, it should be
List[Tuple[str, str]
.