feat(DataProvider): Support string method names in DataProvider attribute

Author: roxblnfk

src/Sample/DataProvider.php

@@ -20,11 +20,14 @@
 #[FallbackInterceptor(DataProviderInterceptor::class)]
 final class DataProvider implements Interceptable
 {
-    public readonly \Closure $provider;
+    public readonly \Closure|string $provider;
 
+    /**
+     * @param callable(): iterable<array>|non-empty-string $provider The data provider callable or the method name.
+     */
     public function __construct(
-        callable $provider,
+        callable|string $provider,
     ) {
-        $this->provider = $provider(...);
+        $this->provider = \is_callable($provider) ? $provider(...) : $provider;
     }
 }

src/Sample/Internal/DataProviderInterceptor.php

@@ -5,6 +5,7 @@
 namespace Testo\Sample\Internal;
 
 use Psr\EventDispatcher\EventDispatcherInterface;
+use ReflectionMethod;
 use Testo\Sample\DataProvider;
 use Testo\Sample\MultipleResult;
 use Testo\Interceptor\TestRunInterceptor;
@@ -32,8 +33,22 @@ public function runTest(TestInfo $info, callable $next): TestResult
         // Dispatch batch starting event
         $this->eventDispatcher->dispatch(new TestBatchStarting($info));
 
+        $provider = $this->options->provider;
+        if (\is_string($provider)) {
+            $info->testDefinition->reflection instanceof \ReflectionMethod or throw new \LogicException(
+                'DataProvider provider must be a callable or method name string.',
+            );
+
+            /** @var \ReflectionClass $class */
+            $class = $info->testDefinition->reflection->getDeclaringClass();
+            $class->hasMethod($provider) or throw new \LogicException(
+                "DataProvider method '$provider' does not exist.",
+            );
+            $provider = [$class->getName(), $provider];
+        }
+
         // Fetch data sets from the provider
-        $dataSets = ($this->options->provider)();
+        $dataSets = $provider();
 
         // Run the test for each data set
         $results = [];

tests/Testo/Unit/PathTest.php

@@ -461,7 +461,7 @@ public static function providePathsForMatch(): \Generator
         yield 'character class does not match' => ['test/file4.txt', 'test/file[123].txt', false];
         yield 'no match different extension' => ['test/file.php', 'test/*.txt', false];
         yield 'no match different path' => ['other/file.txt', 'test/*.txt', false];
-        yield 'wildcard double asterisk simulation' => ['test/deep/nested/file.txt', 'test/*/nested/*.txt', false];
+        yield 'wildcard double asterisk simulation' => ['test/deep/nested/file.txt', 'test/*/nested/*.txt', true];
         yield 'pattern with no wildcards no match' => ['test/file.txt', 'test/other.txt', false];
     }