It might be a dumb question, but are there any good examples on how to specify matching rules for values in a map? I'm struggling to understand the syntax tbh, like where do you put the matching rules. Like how can we say the map accepts 0+ fields and both key and value are strings (basically

map<string, string> labels = 4

in the .proto file). I've tried:

"labels": {"pact:match": "eachKey(matching(type, 'some-key')), eachValue(matching(type, 'some-value'))"}

and got

rpc error: code = FailedPrecondition desc = Failed to match the request message - BodyMismatches({"$.destination": [BodyMismatch { path: "$.destination.labels", expected: None, actual: None, mismatch: "Expected repeated field 'labels' to be empty but received 1 values" }]})

"labels": {"pact:match": "atLeast(0), eachKey(matching(type, 'some-key')), eachValue(matching(type, 'some-value'))"},

and it gave me an error

2024-01-31 22:44:50.5126  ┃ 2024-02-01T06:44:50.498712Z ERROR ThreadId(01) pact_ffi::plugins: Failed to call out to plugin - min-type is not a valid matching rule type

(or at least that's the error I found in the debug logs, in info it was the usual 'pact file contains no protobuf descriptors')

Yes, a sperate test for each different combination you want to assert. But I would normally just do 2: empty and not empty

Thanks! Yeah, I've seen those docs, they're good but miss important point - how to apply those matchers for list and map fields, e.g. where do you put

eachKey

and

eachValue

? I was kinda semi-guessing based on your previous comments 🙂

Just coming back to this

how can we say the map accepts 0+ fields

ooh, seems like the first issue here is the same as the one for which I've opened a separate ticket 😅 https://pact-foundation.slack.com/archives/CEQBDD5U4/p1707272916302469

0.3.12 released with some fixes