docs(examples): add http+xml example

[benaduo]

Closes #372

This PR adds a complete HTTP XML contract testing example to examples/http/xml_example/, demonstrating how to use pact-python with XML payloads.

What's included:

• consumer.py: A UserClient that requests XML from a provider using Accept: application/xml and parses responses with xml.etree.ElementTree
• provider.py: A FastAPI app with a /users/{id} endpoint returning Content-Type: application/xml responses
• test_consumer.py: 2 Pact consumer tests (200 with XML body, 404 for unknown user)
• test_provider.py: 1 Pact provider verification test using uvicorn
• conftest.py: Local pacts_path fixture
• pyproject.toml: Example dependencies
• Updated examples/http/README.md to list the new example

Tests: All 3 pass locally.

[benaduo]

Hi @JP-Ellis, I've opened this PR to address issue #372, adding a complete XML contract testing example using xml.etree.ElementTree with FastAPI as the provider. All 3 tests pass locally. Would appreciate a review when you get the chance. Happy to make any changes you need.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 55%. Comparing base (a69ddc4) to head (2240654).
⚠️ Report is 3 commits behind head on main.
✅ All tests successful. No failed tests found.

Additional details and impacted files

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  Coverage    55%     55%           
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  Files        32      32           
  Lines      3894    3894           
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  Hits       2144    2144           
  Misses     1750    1750           

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[JP-Ellis]

Thanks for opening up the PR! There are a few changes I have made to the example itself in terms of linting/formatting. I've also expanded a fair bit on the docs aspect, as the examples are meant to be a learning resource as well. I'll push these changes up shortly.

[Copilot]

Pull request overview

Adds a new, self-contained examples/http/xml_example/ showing how to use pact-python for HTTP contract testing with XML payloads, and makes HTTP example logging setup more resilient.

Changes:

• Introduces an XML consumer (requests) and provider (FastAPI) pair plus consumer/provider Pact tests and fixtures under examples/http/xml_example/.
• Adds an example-local pyproject.toml for dependency setup and updates examples/http/README.md to list the new example.
• Suppresses RuntimeError when configuring Pact FFI logging in existing HTTP examples’ conftest.py.

Reviewed changes

Copilot reviewed 10 out of 10 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
examples/http/xml_example/test_provider.py	Provider verification test with state handlers and uvicorn-backed server fixture.
examples/http/xml_example/test_consumer.py	Consumer Pact tests using literal XML bodies and Accept: application/xml.
examples/http/xml_example/pyproject.toml	Example dependency declaration and tooling config.
examples/http/xml_example/provider.py	FastAPI provider returning XML responses built via xml.etree.ElementTree.
examples/http/xml_example/consumer.py	requests client that requests/parses XML responses.
examples/http/xml_example/conftest.py	Provides pacts_path fixture for the example.
examples/http/xml_example/init.py	Marks the example as a package; disables missing docstring lint.
examples/http/requests_and_fastapi/conftest.py	Wraps Pact logging initialization in contextlib.suppress(RuntimeError).
examples/http/aiohttp_and_flask/conftest.py	Wraps Pact logging initialization in contextlib.suppress(RuntimeError).
examples/http/README.md	Lists the new xml_example/ directory.

[Copilot]

The server thread is started and the fixture returns immediately; provider verification can race the server startup and become flaky on slower machines/CI. Consider waiting until the port is accepting connections (or adding a small startup delay/poll) before returning the base URL.