Contract test for a Java consumer and JavaScript provider

Question

We have 2 services where one is the consumer of the other. The consumer is written in Java and the provider is written in JavaScript.

On the consumer side we've defined a consumer-contract-test using pact-jvm and we're able to generate a contract. In this contract the response is defined like:

"response": {
  "status": 200,
  "headers": {
    "Content-Type": "application/json"
  },
  "body": [
    "test"
  ]
},

On our provider we are now trying to define a provider-contract-test using pact-js but we are hitting a problem where in pact-js we are using a MessageProviderPact to verify the contract. But when running the test, the body is expected to be in a content attribute like this:

Key: - is expected 
            + is actual 
       Matching keys and values are not shown

       -[
       -  "test"
       -]
       +{
       +  "contents": {
       +    "statusCode": 200,
       +    "body": "[test]"
       +  }
       +}

Code used for pact verification

const p = new MessageProviderPact({
        messageProviders: {
            '': handler
        },
        provider: 'provider-service',
        pactUrls: [
            path.resolve(
                process.cwd(),
                'pacts',
                'consumer-service-provider-service.json'
            )
        ]
    });

Any idea's on how to solve this? Is it possible to use a similar message structure with content key on the consumer side? Or can we solve it any other way on the provider side

Any update on this? im using similar setup as you. Java providerand JavaScript consumer — WIlkins LIang
As suggested below, the MessageProviderPact was the wrong choice here. Using the standard Verifier class it's working — bvdwater

Matthew Fellows Matthew Fellows · Accepted Answer · 2020-09-01T23:58:07

MessageProviderPact is for message queue type interactions, not HTTP interactions. I think you need the standard Verifier class (https://github.com/pact-foundation/pact-js/#provider-api-testing):

const { Verifier } = require('@pact-foundation/pact');
let opts = {
  ...
};

new Verifier(opts).verifyProvider().then(function () {
    // do something
});

Contract test for a Java consumer and JavaScript provider

1 Answers