From c61dcad42b086b7ec2c3c22e783b486b4ccb7bda Mon Sep 17 00:00:00 2001
From: dbpolito <danielbpolito@gmail.com>
Date: Wed, 11 Feb 2026 17:57:07 -0300
Subject: [PATCH] Dataset Named Parameters

---
 src/Concerns/Testable.php        | 11 +++--
 tests/Features/DatasetsTests.php | 77 ++++++++++++++++++++++++++++++++
 2 files changed, 85 insertions(+), 3 deletions(-)

diff --git a/src/Concerns/Testable.php b/src/Concerns/Testable.php
index 767a7c69..43c84e3c 100644
--- a/src/Concerns/Testable.php
+++ b/src/Concerns/Testable.php
@@ -350,7 +350,8 @@ trait Testable
         }
 
         $underlyingTest = Reflection::getFunctionVariable($this->__test, 'closure');
-        $testParameterTypes = array_values(Reflection::getFunctionArguments($underlyingTest));
+        $testParameterTypesByName = Reflection::getFunctionArguments($underlyingTest);
+        $testParameterTypes = array_values($testParameterTypesByName);
 
         if (count($arguments) !== 1) {
             foreach ($arguments as $argumentIndex => $argumentValue) {
@@ -358,7 +359,11 @@ trait Testable
                     continue;
                 }
 
-                if (in_array($testParameterTypes[$argumentIndex], [Closure::class, 'callable', 'mixed'])) {
+                $parameterType = is_string($argumentIndex)
+                    ? ($testParameterTypesByName[$argumentIndex] ?? 'mixed')
+                    : ($testParameterTypes[$argumentIndex] ?? 'mixed');
+
+                if (in_array($parameterType, [Closure::class, 'callable', 'mixed'])) {
                     continue;
                 }
 
@@ -384,7 +389,7 @@ trait Testable
             return [$boundDatasetResult];
         }
 
-        return array_values($boundDatasetResult);
+        return $boundDatasetResult;
     }
 
     /**
diff --git a/tests/Features/DatasetsTests.php b/tests/Features/DatasetsTests.php
index 837b56f6..1ae7437e 100644
--- a/tests/Features/DatasetsTests.php
+++ b/tests/Features/DatasetsTests.php
@@ -457,3 +457,80 @@ dataset('after-describe', ['after']);
 test('after describe block with named dataset', function (...$args) {
     expect($args)->toBe(['after']);
 })->with('after-describe');
+
+// Named parameters on datasets
+test('named parameters match by parameter name', function (string $email, string $name) {
+    expect($name)->toBe('Taylor');
+    expect($email)->toBe('taylor@laravel.com');
+})->with([
+    ['name' => 'Taylor', 'email' => 'taylor@laravel.com'],
+]);
+
+test('named parameters work with multiple dataset items', function (string $email, string $name) {
+    expect($name)->toBeString();
+    expect($email)->toContain('@');
+})->with([
+    ['name' => 'Taylor', 'email' => 'taylor@laravel.com'],
+    ['name' => 'James', 'email' => 'james@laravel.com'],
+]);
+
+test('named parameters work in different order than closure params', function (string $third, string $first, string $second) {
+    expect($first)->toBe('a');
+    expect($second)->toBe('b');
+    expect($third)->toBe('c');
+})->with([
+    ['first' => 'a', 'second' => 'b', 'third' => 'c'],
+]);
+
+test('named parameters work with named dataset keys', function (string $email, string $name) {
+    expect($name)->toBeString();
+    expect($email)->toContain('@');
+})->with([
+    'taylor' => ['name' => 'Taylor', 'email' => 'taylor@laravel.com'],
+    'james' => ['name' => 'James', 'email' => 'james@laravel.com'],
+]);
+
+test('named parameters work with closures that should be resolved', function (string $email, string $name) {
+    expect($name)->toBe('bar');
+    expect($email)->toBe('bar@example.com');
+})->with([
+    [
+        'name' => function () {
+            return $this->foo;
+        },
+        'email' => function () {
+            return $this->foo.'@example.com';
+        },
+    ],
+]);
+
+test('named parameters work with closure type hints', function (Closure $callback, string $name) {
+    expect($name)->toBe('Taylor');
+    expect($callback())->toBe('resolved');
+})->with([
+    [
+        'name' => 'Taylor',
+        'callback' => function () {
+            return 'resolved';
+        },
+    ],
+]);
+
+dataset('named-params-dataset', [
+    ['name' => 'Taylor', 'email' => 'taylor@laravel.com'],
+    ['name' => 'James', 'email' => 'james@laravel.com'],
+]);
+
+test('named parameters work with registered datasets', function (string $email, string $name) {
+    expect($name)->toBeString();
+    expect($email)->toContain('@');
+})->with('named-params-dataset');
+
+test('named parameters work with bound closure returning associative array', function (string $email, string $name) {
+    expect($name)->toBe('bar');
+    expect($email)->toBe('test@example.com');
+})->with([
+    function () {
+        return ['name' => $this->foo, 'email' => 'test@example.com'];
+    },
+]);