fix(tia): suppress PHPUnit XML coverage during recording

When phpunit.xml has <coverage> and <source> sections, PHPUnit
auto-initializes its code coverage driver which takes over
xdebug's coverage APIs. TIA's recorder then gets empty data
from xdebug_get_code_coverage(), resulting in zero recorded
edges and no graph being saved.

Inject --no-coverage into the arguments when TIA enters its
own recording mode (not piggybacking on an explicit coverage
report). This tells PHPUnit to ignore XML-configured coverage
reports, leaving xdebug free for TIA's per-test recording.

Having <coverage> and <source> in phpunit.xml is standard for
any project that generates coverage reports. Without this fix,
users must manually pass --no-coverage alongside --tia, which
is an unnecessary footgun.

Author: calebdw

src/Plugins/Tia.php

@@ -1234,6 +1234,10 @@ private function enterRecordMode(array $arguments): array
             return $arguments;
         }
 
+        if (! $this->piggybackCoverage && ! in_array('--no-coverage', $arguments, true)) {
+            $arguments[] = '--no-coverage';
+        }
+
         if (Parallel::isEnabled()) {
             $this->purgeWorkerPartials();
 

tests/Features/Tia/CoveragePiggyback.php

@@ -39,6 +39,44 @@
         ->and($graph['files'])->toContain('app/Calculator.php');
 })->skipOnWindows();
 
+test('xml-configured coverage does not prevent tia recording', function (): void {
+    $project = Project::make('master');
+
+    $project->write('phpunit.xml', <<<'XML'
+        <?xml version="1.0" encoding="UTF-8"?>
+        <phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+                 xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/10.0/phpunit.xsd"
+                 bootstrap="vendor/autoload.php"
+                 cacheDirectory=".phpunit.cache"
+                 colors="true"
+                 failOnRisky="true"
+                 failOnWarning="false"
+        >
+          <testsuites>
+            <testsuite name="default">
+              <directory suffix="Test.php">./tests</directory>
+            </testsuite>
+          </testsuites>
+          <coverage>
+            <report>
+              <clover outputFile="coverage/clover.xml" />
+            </report>
+          </coverage>
+          <source>
+            <include>
+              <directory suffix=".php">./app</directory>
+            </include>
+          </source>
+        </phpunit>
+        XML);
+
+    $result = $project->pest('--tia');
+
+    expect($result->exitCode)->toBe(0)
+        ->and($project->graphExists())->toBeTrue()
+        ->and(array_keys($project->graph()['edges']))->toEqualCanonicalizing(array_keys(Project::EDGES));
+})->skipOnWindows();
+
 test('a coverage report leaves the edges of an existing graph alone', function (): void {
     $project = Project::make('master');
     $project->seed('master');