Kept queued 'Content-Type' headers, required 'webroot', dropped the unusable 'paths' default and corrected docs.

[AlexSkrypnyk]

Summary

Response::__construct() in apiserver/index.php now keeps a queued Content-Type and sets application/json only when none was queued, PhpServerContext::__construct() takes webroot as a required string, ApiServerContext no longer invents a paths default, and PhpServerContext::freePort() returns TRUE whenever the port ends up free.

A queued Content-Type was replaced with application/json whenever the body parsed as JSON, so a .txt fixture holding 42 was served as JSON. A PhpServerContext without webroot fell back to DEFAULT_WEBROOT, a src/DrevOps/BehatPhpServer/fixtures directory that never existed, so the constructor threw. An ApiServerContext without paths searched <webroot>/../tests/behat/fixtures, which with the bundled webroot points into a tests/ directory the dist archive excludes, so API will respond with file failed for a consumer that hadn't set paths. And when terminateProcess() still listed a process that had already released its socket, freePort() returned FALSE, so start() threw Unable to stop existing server.

After merge, a Behat config that leaves out webroot fails with Can not find a matching value for an argument $webroot, a file response without paths throws a message naming the option, Response::fromArray() accepts a reason of "0" and ignores a method key, and SECURITY.md lists 3.x as supported and 2.x until 31 December 2026. Gherkin step phrases and context option names in behat.yml and behat.php don't change.

Before / After

Response::__construct() with a queued Content-Type of text/plain and body 42

  BEFORE                                  AFTER
  ┌─────────────────────────────────┐     ┌─────────────────────────────────┐
  │ isJson('42') is TRUE            │     │ isJson('42') is TRUE            │
  │ Content-Type replaced with      │     │ hasHeader('Content-Type') TRUE  │
  │ application/json                │     │ Content-Type stays text/plain   │
  └─────────────────────────────────┘     └─────────────────────────────────┘

PhpServerContext in a Behat config without webroot

  BEFORE                                  AFTER
  ┌─────────────────────────────────┐     ┌─────────────────────────────────┐
  │ falls back to DEFAULT_WEBROOT   │     │ $webroot is a required string   │
  │ src/.../fixtures never existed  │     │ Behat reports: Can not find a   │
  │ constructor throws: directory   │     │ matching value for an argument  │
  │ does not exist                  │     │ $webroot                        │
  └─────────────────────────────────┘     └─────────────────────────────────┘

API will respond with file, with no paths configured

  BEFORE                                  AFTER
  ┌─────────────────────────────────┐     ┌─────────────────────────────────┐
  │ searches <webroot>/../tests/    │     │ fixturesPaths is []             │
  │ behat/fixtures                  │     │ throws: no fixture paths are    │
  │ excluded from the dist archive  │     │ configured, set the paths       │
  │ throws: File does not exist     │     │ option                          │
  └─────────────────────────────────┘     └─────────────────────────────────┘

freePort() when the process is still listed but its port is free

  BEFORE                                  AFTER
  ┌─────────────────────────────────┐     ┌─────────────────────────────────┐
  │ terminateProcess() is FALSE     │     │ terminateProcess() is FALSE     │
  │ isPortInUse() is FALSE          │     │ isPortInUse() is FALSE          │
  │ freePort() returns FALSE        │     │ freePort() returns TRUE         │
  │ start() throws: Unable to stop  │     │ start() launches the server     │
  └─────────────────────────────────┘     └─────────────────────────────────┘

Changes

Mock API server (apiserver/index.php)

• Response::__construct() keeps a queued Content-Type, matched case-insensitively through the new hasHeader(), and sets application/json only for a JSON body with no queued Content-Type.
• Response::fromArray() requires reason to be a non-empty string, so "0" is accepted, and no longer validates a method key that responses never used.
• The file docblock uses method instead of http_method in the GET /admin/requests example, shows the PUT /admin/responses payload apart from its response headers, and states which requests are recorded.

Contexts

• PhpServerContext::__construct() takes webroot as a required, promoted string, and PhpServerContext::DEFAULT_WEBROOT is removed.
• ApiServerContext passes $webroot ?: static::DEFAULT_WEBROOT to the parent, so its webroot still defaults to the bundled apiserver directory.
• ApiServerContext has no default paths, and apiWillRespondWithFile() throws File "<name>" cannot be found because no fixture paths are configured. Set the "paths" option of the context. when none are set.
• ApiServerContext::prepareResponse() validates reason with the same rule as the server.
• PhpServerContext::freePort() returns TRUE when isPortInUse() reports the port free after terminateProcess(), whatever the termination result.
• getPidLsof() and getPidNetstat() share a new listPortProcesses() for the which check, the LISTEN-filtered command, the retry without the filter, and splitting output lines into fields.
• The docblocks for the scenario hooks, the stop() @return and apiIsRunning() describe what the code does.

Tests

• ResponseTest::testContentType(), ApiServerContextTest::testConstructorWebroot() and testApiWillRespondWithFileThrowsWithoutPaths() are new, and a Behat scenario checks that a queued text/plain survives a JSON body.
• testPrepareResponse() asserts the base64 body on body_raw; its assertion branch was keyed on body_encoded, which no data set had, so it never ran.
• testGetPid() calls the real getPid() through callProtectedMethod(), where its test double threw the expected exception itself.
• testFreePort() covers a reported termination failure both with the port freed and with the port still held.
• Test names follow the renamed step methods (testApiDebugRequestsThrowsOnFailure, testApiShouldHaveQueuedResponses, testApiShouldHaveReceivedRequests and their providers), and anonymous test doubles use protected.
• FeatureContext drops the case-sensitive duplicate step the response header :name should contain :value, whose 2 feature lines now use the response header should contain :name with value :value, and sendGetRequestToPath() is renamed sendGetRequestToApiServer().

Documentation and config

• README.md: the ApiServerContext examples no longer set webroot: '%paths.base%/apiserver', a path a consuming project doesn't have; the options table says PhpServerContext requires webroot and paths has no default; the queued-response example says every field may be omitted; the hook reference is #[BeforeScenario].
• behat.dist.yml and behat.dist.php point the ApiServerContext webroot at %paths.base%/vendor/drevops/behat-phpserver/apiserver.
• UPGRADE.md: the $paths section says YAML paths: 8888 is still coerced to '8888', because Behat builds contexts through ReflectionClass::newInstanceArgs(), and only a strict_types=1 PHP caller gets a TypeError; new sections cover the Content-Type, paths and webroot changes; option references name both behat.yml and behat.php.
• SECURITY.md lists 3.x as supported, and 2.x until 31 December 2026.
• CONTRIBUTING.md says composer test-coverage writes PHPUnit coverage to .logs/phpunit/, and composer test-bdd writes Behat coverage to .logs/behat/ when pcov or Xdebug is enabled.
• AGENTS.md uses the dataProvider prefix in its DataProvider example.

Readability

• Blank lines before return and around blocks in PhpServerContext.php, apiserver/index.php, FeatureContext.php and the unit tests, short multi-line calls on one line, a guard clause in freePort(), no dead 'unknown' initialisation in terminateProcess(), and $responses instead of a reused $data in apiWillRespondWith().
• Comments that restated the code or held a @todo are removed, and figurative comments in apiserver/index.php, PhpServerContext.php and rector.php are rewritten as plain technical statements.

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📝 Walkthrough

Walkthrough

The pull request updates API response validation and content-type handling, changes server context webroot and fixture-path defaults, consolidates port-process discovery, updates tests, and revises configuration and release documentation.

Changes

Server behavior

Layer / File(s)	Summary
Response contract and content handling apiserver/index.php, src/DrevOps/BehatPhpServer/ApiServerContext.php, tests/behat/*, tests/phpunit/Unit/ResponseTest.php, tests/phpunit/Unit/ApiServerContextTest.php	Responses require a non-empty string reason. JSON content types are added only when no equivalent header exists. Existing queued content types are preserved. Related API, PHPUnit, and Behat tests were updated.
Context configuration and lifecycle src/DrevOps/BehatPhpServer/*Context.php, tests/phpunit/Unit/*ContextTest.php	ApiServerContext uses its bundled webroot when needed and no longer supplies an implicit fixture path. PhpServerContext requires webroot, removes DEFAULT_WEBROOT, and uses shared port-process discovery.
Integration configuration and release documentation behat.dist.*, README.md, UPGRADE.md, SECURITY.md, CONTRIBUTING.md, AGENTS.md, rector.php	Behat uses the vendored API server path. Documentation describes the updated constructors, response behavior, coverage, support policy, and PHPUnit convention.

Priority: ➖ Normal

Estimated code review effort: 3 (Moderate) | ~30 minutes

Change: Bug fix

Merge Risk: 🔵 Low · up to 8fd99

The API test may miss a Content-Type regression; this is a narrow validation gap with low merge risk, but the assertion should be made exact.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly summarizes several primary changes, including queued Content-Type preservation, the required webroot, removal of the paths default, and documentation updates.
Docstring Coverage	✅ Passed	Docstring coverage is 95.24% which is sufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 63 functions across 9 files. (1 skipped: 1 …
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 96.20%. Comparing base (115ed9f) to head (8fd99b7).
⚠️ Report is 12 commits behind head on main.
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #140      +/-   ##
==========================================
+ Coverage   95.70%   96.20%   +0.50%     
==========================================
  Files           3        3              
  Lines         466      422      -44     
==========================================
- Hits          446      406      -40     
+ Misses         20       16       -4     

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Actionable comments posted: 3

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Inline comments:
In `@src/DrevOps/BehatPhpServer/PhpServerContext.php`:
- Line 345: Update the terminateProcess/freePort flow so a process that has
released its socket is treated as successfully terminated, even if the process
check still reports it present after waiting. Reuse isPortInUse() to validate
the port state before returning failure, ensuring stop() does not propagate a
false failure and start() can proceed when the port is free.

In `@tests/behat/features/apiserver.feature`:
- Line 207: Update the response-header assertion in the scenario to require the
Content-Type value to equal exactly "text/plain" rather than merely contain it,
and ensure duplicate Content-Type headers are removed regardless of header-name
casing.

In `@UPGRADE.md`:
- Line 5: Update the configuration guidance in the introductory paragraph of
UPGRADE.md to distinguish Behat 3’s behat.yml from Behat 4’s behat.php or
behat.dist.php, or refer generally to the active Behat configuration file when
describing where to add paths.

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• AGENTS.md
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• apiserver/index.php
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• src/DrevOps/BehatPhpServer/PhpServerContext.php
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Code Coverage Report:
  2026-09-15 03:47:37

 Summary:
  Classes: 40.00% (2/5)
  Methods: 77.27% (34/44)
  Lines:   93.90% (400/426)

DrevOps\BehatPhpServer\ApiServerContext
  Methods:  75.00% ( 9/12)   Lines:  95.73% (112/117)
DrevOps\BehatPhpServer\ApiServer\ApiServer
  Methods:  70.00% ( 7/10)   Lines:  87.78% ( 79/ 90)
DrevOps\BehatPhpServer\ApiServer\Request
  Methods: 100.00% ( 1/ 1)   Lines: 100.00% (  1/  1)
DrevOps\BehatPhpServer\ApiServer\Response
  Methods: 100.00% ( 4/ 4)   Lines: 100.00% ( 39/ 39)
DrevOps\BehatPhpServer\PhpServerContext
  Methods:  76.47% (13/17)   Lines:  95.48% (169/177)