fix(tia): fingerprint the configuration file in use

src/Plugins/Tia.php

@@ -622,7 +622,7 @@ public function terminate(): void
         $changedFiles = new ChangedFiles($projectRoot);
         $currentSha = $changedFiles->currentSha();
 
-        $currentFingerprint = Fingerprint::compute($projectRoot);
+        $currentFingerprint = Fingerprint::compute($projectRoot, $this->originalArguments);
 
         if ($this->structuralFingerprintShifted($currentFingerprint)) {
             $this->renderBadge('WARN', 'Project files changed during the run — discarding recorded edges.');
@@ -708,7 +708,7 @@ public function addOutput(int $exitCode): int
         $changedFiles = new ChangedFiles($projectRoot);
         $currentSha = $changedFiles->currentSha();
 
-        $currentFingerprint = Fingerprint::compute($projectRoot);
+        $currentFingerprint = Fingerprint::compute($projectRoot, $this->originalArguments);
 
         if ($this->structuralFingerprintShifted($currentFingerprint)) {
             $this->renderBadge('WARN', 'Project files changed during the run — discarding recorded edges.');
@@ -846,7 +846,7 @@ private function handleParent(array $arguments, string $projectRoot, bool $force
                 : new TiaRequiresRemote);
         }
 
-        $fingerprint = Fingerprint::compute($projectRoot);
+        $fingerprint = Fingerprint::compute($projectRoot, $this->originalArguments);
         $this->startFingerprint = $fingerprint;
 
         if ($forceRebuild && ! $this->detachedHead) {

src/Plugins/Tia/Fingerprint.php

@@ -22,19 +22,19 @@
     ];
 
     /**
+     * @param  array<int, string>  $arguments
      * @return array{
      *     structural: array<string, int|string|null>,
      *     environmental: array<string, int|string|null>,
      * }
      */
-    public static function compute(string $projectRoot): array
+    public static function compute(string $projectRoot, array $arguments = []): array
     {
         return [
             'structural' => [
                 'schema' => self::SCHEMA_VERSION,
                 'composer_lock' => self::composerLockHash($projectRoot),
-                'phpunit_xml' => self::trackedHash($projectRoot, 'phpunit.xml'),
-                'phpunit_xml_dist' => self::trackedHash($projectRoot, 'phpunit.xml.dist'),
+                'phpunit_xml' => self::phpunitConfigurationHash($projectRoot, $arguments),
                 'vite_config' => self::viteConfigHash($projectRoot),
                 'package_lock' => self::packageLockHash($projectRoot),
                 'js_config' => self::jsConfigHash($projectRoot),
@@ -197,6 +197,70 @@ private static function jsConfigHash(string $projectRoot): ?string
         return $parts === [] ? null : hash('xxh128', implode("\n", $parts));
     }
 
+    /**
+     * @param  array<int, string>  $arguments
+     */
+    private static function phpunitConfigurationHash(string $projectRoot, array $arguments): ?string
+    {
+        foreach (self::configurationCandidates($projectRoot, $arguments) as $candidate) {
+            $hash = self::hashIfExists($candidate);
+
+            if ($hash !== null) {
+                return $hash;
+            }
+        }
+
+        return null;
+    }
+
+    /**
+     * @param  array<int, string>  $arguments
+     * @return list<string>
+     */
+    private static function configurationCandidates(string $projectRoot, array $arguments): array
+    {
+        $option = self::configurationOption($arguments);
+
+        $path = $option === null ? $projectRoot : realpath($option);
+
+        if ($path === false) {
+            return [];
+        }
+
+        if (is_file($path)) {
+            return [$path];
+        }
+
+        return [
+            $path.DIRECTORY_SEPARATOR.'phpunit.xml',
+            $path.DIRECTORY_SEPARATOR.'phpunit.xml.dist',
+        ];
+    }
+
+    /**
+     * @param  array<int, string>  $arguments
+     */
+    private static function configurationOption(array $arguments): ?string
+    {
+        $arguments = array_values($arguments);
+
+        foreach ($arguments as $index => $argument) {
+            if ($argument === '-c' || $argument === '--configuration') {
+                return $arguments[$index + 1] ?? null;
+            }
+
+            if (str_starts_with($argument, '--configuration=')) {
+                return substr($argument, strlen('--configuration='));
+            }
+
+            if (str_starts_with($argument, '-c')) {
+                return substr($argument, 2);
+            }
+        }
+
+        return null;
+    }
+
     private static function composerLockHash(string $projectRoot): ?string
     {
         return self::trackedHash($projectRoot, 'composer.lock');

src/Restarters/XdebugRestarter.php

@@ -86,10 +86,13 @@ private function runLooksDroppable(array $arguments, string $projectRoot): bool
             return false;
         }
 
-        return $this->tiaWillReplay($projectRoot);
+        return $this->tiaWillReplay($projectRoot, $arguments);
     }
 
-    private function tiaWillReplay(string $projectRoot): bool
+    /**
+     * @param  array<int, string>  $arguments
+     */
+    private function tiaWillReplay(string $projectRoot, array $arguments): bool
     {
         $path = Storage::tempDir($projectRoot).DIRECTORY_SEPARATOR.Tia::KEY_GRAPH;
 
@@ -111,7 +114,7 @@ private function tiaWillReplay(string $projectRoot): bool
 
         return Fingerprint::structuralMatches(
             $graph->fingerprint(),
-            Fingerprint::compute($projectRoot),
+            Fingerprint::compute($projectRoot, $arguments),
         );
     }
 }

tests/Features/Tia.php

@@ -13,6 +13,7 @@
     $projectRoot = dirname(__DIR__, 2);
     $home = sys_get_temp_dir().'/pest-tia-'.bin2hex(random_bytes(8));
     $fixture = 'tests/Fixtures/Suites/TiaReplayHooks.php';
+    $arguments = ['--configuration', 'tests/Fixtures/Suites/TiaReplayHooks.xml', '--tia'];
 
     mkdir($home, 0755, true);
 
@@ -24,7 +25,7 @@
         $id = fn (string $description): string => 'P\Tests\Fixtures\Suites\TiaReplayHooks::'.Str::evaluable($description);
 
         $graph = new Graph($projectRoot);
-        $graph->setFingerprint(Fingerprint::compute($projectRoot));
+        $graph->setFingerprint(Fingerprint::compute($projectRoot, $arguments));
         $graph->setRecordedAtSha($branch, $sha);
         $graph->setLastRunTree($branch, $changedFiles->snapshotTree($changedFiles->since($sha) ?? []));
         $graph->markKnownTestFiles([$fixture]);
@@ -48,7 +49,7 @@
         expect($storage->write(Tia::KEY_GRAPH, (string) $json))->toBeTrue();
 
         $process = new Process(
-            ['php', 'bin/pest', '--configuration', 'tests/Fixtures/Suites/TiaReplayHooks.xml', '--tia'],
+            ['php', 'bin/pest', ...$arguments],
             $projectRoot,
             [
                 'COLLISION_PRINTER' => 'DefaultPrinter',