From 259c5f6d8dcaf854e5f416e728153d0371be41a0 Mon Sep 17 00:00:00 2001
From: CAAHS <154250652+CAAHS@users.noreply.github.com>
Date: Mon, 27 May 2024 15:41:52 +0200
Subject: [PATCH] Fixes explicit route binding with `BackedEnum` (#51586)

Port a078b1a97e (Fixes explicit route binding with `BackedEnum` (#51525),
2024-05-21 crynobone) to 10.x (from 11.x).

fixes #51583
refs #51514

Signed-off-by: CAAHS <CAAHS@example.net>
Co-authored-by: CAAHS <CAAHS@example.net>
---
 .../Routing/ImplicitRouteBinding.php          |  4 +++-
 .../Routing/CategoryBackedEnum.php            | 18 ++++++++++++++++++
 tests/Integration/Routing/Enums.php           |  9 ---------
 .../ImplicitBackedEnumRouteBindingTest.php    | 19 ++++++++++++++++---
 4 files changed, 37 insertions(+), 13 deletions(-)
 create mode 100644 tests/Integration/Routing/CategoryBackedEnum.php
 delete mode 100644 tests/Integration/Routing/Enums.php

diff --git a/src/Illuminate/Routing/ImplicitRouteBinding.php b/src/Illuminate/Routing/ImplicitRouteBinding.php
index d3590de1d707..f8352e3d57e1 100644
--- a/src/Illuminate/Routing/ImplicitRouteBinding.php
+++ b/src/Illuminate/Routing/ImplicitRouteBinding.php
@@ -86,7 +86,9 @@ protected static function resolveBackedEnumsForRoute($route, $parameters)
 
             $backedEnumClass = $parameter->getType()?->getName();
 
-            $backedEnum = $backedEnumClass::tryFrom((string) $parameterValue);
+            $backedEnum = $parameterValue instanceof $backedEnumClass
+                ? $parameterValue
+                : $backedEnumClass::tryFrom((string) $parameterValue);
 
             if (is_null($backedEnum)) {
                 throw new BackedEnumCaseNotFoundException($backedEnumClass, $parameterValue);
diff --git a/tests/Integration/Routing/CategoryBackedEnum.php b/tests/Integration/Routing/CategoryBackedEnum.php
new file mode 100644
index 000000000000..2ff3cf6e7f80
--- /dev/null
+++ b/tests/Integration/Routing/CategoryBackedEnum.php
@@ -0,0 +1,18 @@
+<?php
+
+namespace Illuminate\Tests\Integration\Routing;
+
+enum CategoryBackedEnum: string
+{
+    case People = 'people';
+    case Fruits = 'fruits';
+
+    public static function fromCode(string $code)
+    {
+        return match ($code) {
+            'c01' => self::People,
+            'c02' => self::Fruits,
+            default => null,
+        };
+    }
+}
diff --git a/tests/Integration/Routing/Enums.php b/tests/Integration/Routing/Enums.php
deleted file mode 100644
index 5a2ba0f5a8b1..000000000000
--- a/tests/Integration/Routing/Enums.php
+++ /dev/null
@@ -1,9 +0,0 @@
-<?php
-
-namespace Illuminate\Tests\Integration\Routing;
-
-enum CategoryBackedEnum: string
-{
-    case People = 'people';
-    case Fruits = 'fruits';
-}
diff --git a/tests/Integration/Routing/ImplicitBackedEnumRouteBindingTest.php b/tests/Integration/Routing/ImplicitBackedEnumRouteBindingTest.php
index 0eae5370b1d8..124c2f82a119 100644
--- a/tests/Integration/Routing/ImplicitBackedEnumRouteBindingTest.php
+++ b/tests/Integration/Routing/ImplicitBackedEnumRouteBindingTest.php
@@ -5,8 +5,6 @@
 use Illuminate\Support\Facades\Route;
 use Orchestra\Testbench\TestCase;
 
-include_once 'Enums.php';
-
 class ImplicitBackedEnumRouteBindingTest extends TestCase
 {
     protected function defineEnvironment($app): void
@@ -61,6 +59,12 @@ public function testWithoutRouteCachingEnabled()
             return $category->value;
         })->middleware('web');
 
+        Route::bind('categoryCode', fn (string $categoryCode) => CategoryBackedEnum::fromCode($categoryCode) ?? abort(404));
+
+        Route::post('/categories-code/{categoryCode}', function (CategoryBackedEnum $categoryCode) {
+            return $categoryCode->value;
+        })->middleware(['web']);
+
         $response = $this->post('/categories/fruits');
         $response->assertSee('fruits');
 
@@ -68,7 +72,7 @@ public function testWithoutRouteCachingEnabled()
         $response->assertSee('people');
 
         $response = $this->post('/categories/cars');
-        $response->assertNotFound(404);
+        $response->assertNotFound();
 
         $response = $this->post('/categories-default/');
         $response->assertSee('fruits');
@@ -78,5 +82,14 @@ public function testWithoutRouteCachingEnabled()
 
         $response = $this->post('/categories-default/fruits');
         $response->assertSee('fruits');
+
+        $response = $this->post('/categories-code/c01');
+        $response->assertSee('people');
+
+        $response = $this->post('/categories-code/c02');
+        $response->assertSee('fruits');
+
+        $response = $this->post('/categories-code/00');
+        $response->assertNotFound();
     }
 }