I m writing a consumer test that uses the gRPC plugin and fo Pact Foundation #protobufs

I'm writing a consumer test that uses the gRPC plu...

Rohit Krishnan

07/11/2023, 3:43 PM

I'm writing a consumer test that uses the gRPC plugin and for some reason it's having trouble with a

Timestamp

field in the request. Is this supported?

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Pact Test function failed with an exception: Bad type on operand stack
Exception Details:
  Reason:
    Type 'com/google/protobuf/Timestamp' (current frame, stack[2]) is not assignable to 'com/google/protobuf/GeneratedMessageLite'

My request looks like this (Kotlin):

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"timestamp" to mapOf(
  "seconds" to "0",
  "nanos" to "0"
)

My message in the proto looks like this:

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message SomeMessage {
  ... Other fields ...
  google.protobuf.Timestamp timestamp = 4;
}

Rohit Krishnan

07/11/2023, 3:45 PM

This might be a self inflicted wound because we have both protobuf and protobuf-lite in our project, but that hasn't caused an issue so far with other fields, so wonder what's different here.

Rohit Krishnan

07/11/2023, 4:01 PM

Update: The exception isn't in Pact but rather parsing the proto bytes from the V4 interaction object into a concrete proto object. Looks like this is my fault.

👍 1

Matt (pactflow.io / pact-js / pact-go)

07/11/2023, 10:51 PM

Thanks for updating/clarifying (and love the rubberduck debugging - this will hopefully help others!)

Rohit Krishnan

07/12/2023, 6:44 PM

For posterity, we had the protobuf-javalite library as a transitive dependency and solve the issue by replacing it with the full version via a gradle configuration block.

👍 1

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