Stub server should support generator MockServerURL

[tienvx]

Generator MockServerURL is used like this:

{
      'pact:matcher:type': 'regex',
      'pact:generator:type': 'MockServerURL',
      regex: '.*(\\/example/path)$',
      value: 'http://localhost:8080/example/path',
      example: 'http://localhost:8080/example/path',
    }

Mock Server support this generator (obviously from its name), so Consumer's contract test passed. But Stub Server doesn't support this generator, so Consumer's integration test failed.

I think:

• This is a bug, and Stub Server should support this generator (because it support other generators, at least I tested with RandomInt)
• Should we rename MockServerURL to something else that say that Stub Server support it too? I don't have suggestion, naming is hard.

Here are some additional information:

• Demo project https://github.com/tienvx/test-mock-server-url-generator
• Slack's discussion https://pact-foundation.slack.com/archives/CA2S7E6KC/p1682530823430519
• Sequence diagram from what I understand + expect what to happen

Pact file from the above demo project

### In case you don't want to run the demo project to see the contract file ```json { "consumer": { "name": "MyConsumer" }, "interactions": [ { "description": "a request for all urls", "key": "285dde1d2816ddad", "pending": false, "providerStates": [ { "name": "I have a list of urls" } ], "request": { "headers": { "Accept": [ "application/json" ] }, "method": "GET", "path": "/urls" }, "response": { "body": { "content": { "urls": [ { "url": "http://localhost:8080/example/path" } ] }, "contentType": "application/json", "encoded": false }, "generators": { "body": { "$.urls[*].url": { "example": "http://localhost:8080/example/path", "regex": ".*(\\/example/path)$", "type": "MockServerURL" } } }, "headers": { "Content-Type": [ "application/json" ] }, "matchingRules": { "body": { "$.urls": { "combine": "AND", "matchers": [ { "match": "type", "min": 1 } ] }, "$.urls[*].url": { "combine": "AND", "matchers": [ { "match": "regex", "regex": ".*(\\/example/path)$" } ] } }, "header": {} }, "status": 200 }, "type": "Synchronous/HTTP" }, { "description": "a request the url http://provider.com/example/path", "key": "7824381c6cca0583", "pending": false, "providerStates": [ { "name": "I have a url http://provider.com/example/path" } ], "request": { "headers": { "Accept": [ "application/json" ] }, "method": "GET", "path": "/example/path" }, "response": { "body": { "content": { "key": "value" }, "contentType": "application/json", "encoded": false }, "headers": { "Content-Type": [ "application/json" ] }, "matchingRules": { "body": { "$.key": { "combine": "AND", "matchers": [ { "match": "type" } ] } }, "header": {} }, "status": 200 }, "type": "Synchronous/HTTP" } ], "metadata": { "pact-js": { "version": "11.0.2" }, "pactRust": { "ffi": "0.4.0", "models": "1.0.4" }, "pactSpecification": { "version": "4.0" } }, "provider": { "name": "MyProvider" } } ```

[rholshausen]

This may be due to https://github.com/pact-foundation/pact-reference/releases/tag/libpact_models-v1.1.3

[tienvx]

I follow these steps:

• Clone this project (pact-stub-server)
• Update pact_models in Cargo.toml to ~1.1.3
• Run cargo build
• Follow those steps in https://github.com/tienvx/test-mock-server-url-generator
• Instead of starting stub server using yarn, run this command instead: target/debug/pact-stub-server -p 8001 -d ../test-mock-server-url-generator/pacts --cors

But it doesn't fix the issue. The connection refused error is still there.