Adjust validation rule to accept negative amount

Author: PostScripton

src/Rules/Money.php

@@ -8,7 +8,7 @@ class Money implements Rule
 {
     public const RULE_NAME = 'money';
 
-    private const MONEY_REGEX = '/^(([1-9]\d{0,2})(\d*|(\s\d{3})*)|0)(\.\d{1,4})?$/';
+    private const MONEY_REGEX = '/^-?(([1-9]\d{0,2})(\d*|(\s\d{3})*)|0)(\.\d{1,4})?$/';
 
     public function passes($attribute, $value): bool
     {

tests/Unit/Rules/MoneyTest.php

@@ -38,6 +38,38 @@ public function inputsDataProvider(): array
                 'input' => '0.2500',
                 'result' => true,
             ],
+            [
+                'input' => '-1500',
+                'result' => true,
+            ],
+            [
+                'input' => '-1 500',
+                'result' => true,
+            ],
+            [
+                'input' => '-1500.0',
+                'result' => true,
+            ],
+            [
+                'input' => '-1 500.0',
+                'result' => true,
+            ],
+            [
+                'input' => '-0',
+                'result' => true,
+            ],
+            [
+                'input' => '-0.0',
+                'result' => true,
+            ],
+            [
+                'input' => '-0.2500',
+                'result' => true,
+            ],
+            [
+                'input' => '- 500.0',
+                'result' => false,
+            ],
             [
                 'input' => '0.25001',
                 'result' => false,