Not possible to use multipart form data because of boundary

[jawadsef]

Software versions

Please provide at least OS and version of pact-js

• OS: macOS Ventura Version 13.0.1 (22A400)
• Consumer Pact library: e.g. Pact JS v2.6.0

"@pact-foundation/pact": "^12.1.0"
"@pact-foundation/pact-core": "^14.0.5"

• Provider Pact library: not relevant, since this is just a consumer test
• Node Version: v18.14.1

Issue Checklist

Please confirm the following:

• I have upgraded to the latest
• I have the read the FAQs in the Readme
• I have triple checked, that there are no unhandled promises in my code and have read the section on intermittent test failures
• I have set my log level to debug and attached a log file showing the complete request/response cycle
• For bonus points and virtual high fives, I have created a reproducible git repository (see below) to illustrate the problem

Expected behavior

Test passes.

Actual behavior

Test fails.

Getting the following error:

Mock server failed with the following mismatches:
        0) The following request was incorrect: 
                POST /test            
                         1.0    $: Failed to parse the expected body as a MIME multipart body: 'no boundary in content-type'
                         1.1    $: Failed to parse the actual body as a MIME multipart body: 'no boundary in content-type'

I tried generating the boundary but didn't work either.

Steps to reproduce

Clone following repo: https://github.com/jawadsef/pact-js-repro-template (git clone git@github.com:jawadsef/pact-js-repro-template.git)

Run consumer test: https://github.com/jawadsef/pact-js-repro-template/blob/main/consumer.spec.ts (npm run test:consumer )

Relevant log files

[23:34:01.279] INFO (41652): 0.4.0: pact native library successfully found, and the correct version
2023-11-28T22:34:01.331419Z DEBUG ThreadId(01) pact_plugin_driver::catalogue_manager: Updated catalogue entries:
core/transport/http
core/transport/https
2023-11-28T22:34:01.333204Z DEBUG ThreadId(01) pact_plugin_driver::catalogue_manager: Updated catalogue entries:
core/content-generator/binary
core/content-generator/json
core/content-matcher/json
core/content-matcher/multipart-form-data
core/content-matcher/text
core/content-matcher/xml
2023-11-28T22:34:01.333600Z DEBUG ThreadId(01) pact_plugin_driver::catalogue_manager: Updated catalogue entries:
core/matcher/v1-equality
core/matcher/v2-max-type
core/matcher/v2-min-type
core/matcher/v2-minmax-type
core/matcher/v2-regex
core/matcher/v2-type
core/matcher/v3-content-type
core/matcher/v3-date
core/matcher/v3-datetime
core/matcher/v3-decimal-type
core/matcher/v3-includes
core/matcher/v3-integer-type
core/matcher/v3-null
core/matcher/v3-number-type
core/matcher/v3-time
core/matcher/v4-array-contains
core/matcher/v4-equals-ignore-order
core/matcher/v4-max-equals-ignore-order
core/matcher/v4-min-equals-ignore-order
core/matcher/v4-minmax-equals-ignore-order
core/matcher/v4-not-empty
(node:41652) ExperimentalWarning: The Fetch API is an experimental feature. This feature could change at any time
(Use `node --trace-warnings ...` to show where the warning was created)

 RUNS  ./consumer.spec.ts
2023-11-28T22:34:01.363863Z DEBUG tokio-runtime-worker hyper::proto::h1::io: parsed 9 headers
2023-11-28T22:34:01.363895Z DEBUG tokio-runtime-worker hyper::proto::h1::conn: incoming body is chunked encoding
2023-11-28T22:34:01.363970Z DEBUG tokio-runtime-worker hyper::proto::h1::decode: incoming chunked header: 0x63 (99 bytes)
2023-11-28T22:34:01.363996Z DEBUG tokio-runtime-worker pact_mock_server::hyper_server: Creating pact request from hyper request
2023-11-28T22:34:01.364011Z DEBUG tokio-runtime-worker pact_mock_server::hyper_server: Extracting query from uri /test
2023-11-28T22:34:01.364697Z DEBUG tokio-runtime-worker hyper::proto::h1::decode: incoming chunked header: 0x2A (42 bytes)
2023-11-28T22:34:01.364717Z DEBUG tokio-runtime-worker hyper::proto::h1::conn: incoming body completed
2023-11-28T22:34:01.365090Z  INFO tokio-runtime-worker pact_mock_server::hyper_server: Received request HTTP Request ( method: POST, path: /test, query: None, headers: Some({"connection": ["keep-alive"], "accept": ["*/*"], "sec-fetch-mode": ["cors"], "accept-language": ["*"], "user-agent": ["undici"], "content-type": ["multipart/form-data"], "accept-encoding": ["gzip", "deflate"], "host": ["127.0.0.1:63372"], "transfer-encoding": ["chunked"]}), body: Present(141 bytes, multipart/form-data) )
2023-11-28T22:34:01.366169Z  INFO tokio-runtime-worker pact_matching: comparing to expected HTTP Request ( method: POST, path: /test, query: None, headers: Some({"Content-Type": ["multipart/form-data"]}), body: Present(2 bytes) )
2023-11-28T22:34:01.366200Z DEBUG tokio-runtime-worker pact_matching:      body: '7B7D (2 bytes)'
2023-11-28T22:34:01.366205Z DEBUG tokio-runtime-worker pact_matching:      matching_rules: MatchingRules { rules: {PATH: MatchingRuleCategory { name: PATH, rules: {} }, HEADER: MatchingRuleCategory { name: HEADER, rules: {} }} }
2023-11-28T22:34:01.366222Z DEBUG tokio-runtime-worker pact_matching:      generators: Generators { categories: {} }
2023-11-28T22:34:01.366628Z DEBUG tokio-runtime-worker pact_matching::matchers: String -> String: comparing '/test' to '/test' ==> true cascaded=false matcher=Equality
2023-11-28T22:34:01.367642Z DEBUG tokio-runtime-worker pact_matching: expected content type = 'multipart/form-data', actual content type = 'multipart/form-data'
2023-11-28T22:34:01.367705Z DEBUG tokio-runtime-worker pact_matching: content type header matcher = 'RuleList { rules: [], rule_logic: And, cascaded: false }'
2023-11-28T22:34:01.368046Z DEBUG tokio-runtime-worker pact_plugin_driver::catalogue_manager: Looking for a content matcher for multipart/form-data
2023-11-28T22:34:01.369152Z DEBUG tokio-runtime-worker pact_matching: No content matcher defined for content type 'multipart/form-data', using core matcher implementation
2023-11-28T22:34:01.369193Z DEBUG tokio-runtime-worker pact_matching: Using body matcher for content type 'multipart/form-data'
2023-11-28T22:34:01.369210Z DEBUG tokio-runtime-worker pact_matching::binary_utils: matching MIME multipart contents
2023-11-28T22:34:01.370774Z DEBUG tokio-runtime-worker pact_matching: --> Mismatches: [BodyMismatch { path: "$", expected: Some(b"{}"), actual: Some(b"------formdata-undici-0.9267915492310101\r\nContent-Disposition: form-data; name=\"name\"\r\n\r\nJohn Doe\r\n------formdata-undici-0.9267915492310101--"), mismatch: "Failed to parse the expected body as a MIME multipart body: 'no boundary in content-type'" }, BodyMismatch { path: "$", expected: Some(b"{}"), actual: Some(b"------formdata-undici-0.9267915492310101\r\nContent-Disposition: form-data; name=\"name\"\r\n\r\nJohn Doe\r\n------formdata-undici-0.9267915492310101--"), mismatch: "Failed to parse the actual body as a MIME multipart body: 'no boundary in content-type'" }]
2023-11-28T22:34:01.371108Z DEBUG tokio-runtime-worker pact_mock_server::hyper_server: Request did not match: Request did not match - HTTP Request ( method: POST, path: /test, query: None, headers: Some({"Content-Type": ["multipart/form-data"]}), body: Present(2 bytes) )    0) $ -> Failed to parse the expected body as a MIME multipart body: 'no boundary in content-type'    1) $ -> Failed to parse the actual body as a MIME multipart body: 'no boundary in content-type'
2023-11-28T22:34:01.371252Z DEBUG tokio-runtime-worker hyper::proto::h1::io: flushed 1004 bytes
2023-11-28T22:34:01.382132Z DEBUG ThreadId(01) pact_matching::metrics: Could not get the tokio runtime, will not send metrics - there is no reactor running, must be called from the context of a Tokio 1.x runtime
2023-11-28T22:34:01.382168Z DEBUG ThreadId(01) pact_mock_server::server_manager: Shutting down mock server with ID 61f629a8-cbe4-49fc-817e-780a943c6b57 - MockServerMetrics { requests: 1 }
2023-11-28T22:34:01.382191Z DEBUG ThreadId(01) pact_mock_server::mock_server: Mock server 61f629a8-cbe4-49fc-817e-780a943c6b57 shutdown - MockServerMetrics { requests: 1 }
2023-11-28T22:34:01.382214Z DEBUG tokio-runtime-worker hyper::server::shutdown: signal received, starting graceful shutdown
[23:34:01.383] ERROR (41652): pact@12.1.0: Test failed for the following reasons:

  Mock server failed with the following mismatches:

        0) The following request was incorrect: 

                POST /test
            
                         1.0    $: Failed to parse the expected body as a MIME multipart body: 'no boundary in content-type'



                         1.1    $: Failed to parse the actual body as a MIME multipart body: 'no boundary in content-type'