[10.x] Add Enum Support to the In and NotIn Validation Rules (#48247)

* Add Enum compatability to in and not_in validation rules

* fix tests

* styleci changes

* formatting

---------

Co-authored-by: Taylor Otwell <[email protected]>

Author: geisi

src/Illuminate/Validation/Rules/In.php

@@ -2,6 +2,9 @@
 
 namespace Illuminate\Validation\Rules;
 
+use BackedEnum;
+use UnitEnum;
+
 class In
 {
     /**
@@ -39,6 +42,12 @@ public function __construct(array $values)
     public function __toString()
     {
         $values = array_map(function ($value) {
+            $value = match (true) {
+                $value instanceof BackedEnum => $value->value,
+                $value instanceof UnitEnum => $value->name,
+                default => $value,
+            };
+
             return '"'.str_replace('"', '""', $value).'"';
         }, $this->values);
 

src/Illuminate/Validation/Rules/NotIn.php

@@ -2,6 +2,9 @@
 
 namespace Illuminate\Validation\Rules;
 
+use BackedEnum;
+use UnitEnum;
+
 class NotIn
 {
     /**
@@ -37,6 +40,12 @@ public function __construct(array $values)
     public function __toString()
     {
         $values = array_map(function ($value) {
+            $value = match (true) {
+                $value instanceof BackedEnum => $value->value,
+                $value instanceof UnitEnum => $value->name,
+                default => $value,
+            };
+
             return '"'.str_replace('"', '""', $value).'"';
         }, $this->values);
 

tests/Validation/ValidationEnumRuleTest.php

@@ -11,7 +11,7 @@
 use Illuminate\Validation\Validator;
 use PHPUnit\Framework\TestCase;
 
-include 'Enums.php';
+include_once 'Enums.php';
 
 class ValidationEnumRuleTest extends TestCase
 {

tests/Validation/ValidationInRuleTest.php

@@ -7,6 +7,8 @@
 use Illuminate\Validation\Rules\In;
 use PHPUnit\Framework\TestCase;
 
+include_once 'Enums.php';
+
 class ValidationInRuleTest extends TestCase
 {
     public function testItCorrectlyFormatsAStringVersionOfTheRule()
@@ -38,5 +40,17 @@ public function testItCorrectlyFormatsAStringVersionOfTheRule()
         $rule = Rule::in('1', '2', '3', '4');
 
         $this->assertSame('in:"1","2","3","4"', (string) $rule);
+
+        $rule = Rule::in([StringStatus::done]);
+
+        $this->assertSame('in:"done"', (string) $rule);
+
+        $rule = Rule::in([IntegerStatus::done]);
+
+        $this->assertSame('in:"2"', (string) $rule);
+
+        $rule = Rule::in([PureEnum::one]);
+
+        $this->assertSame('in:"one"', (string) $rule);
     }
 }

tests/Validation/ValidationNotInRuleTest.php

@@ -6,6 +6,8 @@
 use Illuminate\Validation\Rules\NotIn;
 use PHPUnit\Framework\TestCase;
 
+include_once 'Enums.php';
+
 class ValidationNotInRuleTest extends TestCase
 {
     public function testItCorrectlyFormatsAStringVersionOfTheRule()
@@ -25,5 +27,17 @@ public function testItCorrectlyFormatsAStringVersionOfTheRule()
         $rule = Rule::notIn('1', '2', '3', '4');
 
         $this->assertSame('not_in:"1","2","3","4"', (string) $rule);
+
+        $rule = Rule::notIn([StringStatus::done]);
+
+        $this->assertSame('not_in:"done"', (string) $rule);
+
+        $rule = Rule::notIn([IntegerStatus::done]);
+
+        $this->assertSame('not_in:"2"', (string) $rule);
+
+        $rule = Rule::notIn([PureEnum::one]);
+
+        $this->assertSame('not_in:"one"', (string) $rule);
     }
 }