CODEWITHSUNDEEP
pact
Jonathan R
Jonathan R

Reputation: 3948

Make Pact-Test fail on additional provider field

The default behavior for a Pact test is to not fail when the provider adds fields to a message that the contract of the consumer does not specify, eg:

Consumer expects:

{
  "foo": "bar"
}

Provider provides:

{
  "foo": "bar",
  "hello": "world"
}

A Pact contract-test using the above noted messages would succeed. Is there a way to make them fail? Some "strict"-mode for example that requires exact matches of messages?

Upvotes: 0

Views: 579

Answers (1)

slauth
slauth

Reputation: 3188

No, that's not possible according to the pact docs:

You cannot expect a field to not be present in a response

Following Postel's law, the provider may return fields that the consumer will just ignore. The provider may have a pact with another consumer that requires those fields, so your consumer cannot tell the provider what it should not do. It can only specify what it should do.

Upvotes: 2

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