Fixed validation rule alpha_dash does not support int. (#2927)

* Updated validation.md

* Fixed validation rule `alpha_dash` does not support `int`.

* Update CHANGELOG-2.0.md

Co-authored-by: 李铭昕 <715557344@qq.com>

Author: PandaLIU-1111

src/Concerns/ValidatesAttributes.php

@@ -146,7 +146,7 @@ public function validateAlphaDash(string $attribute, $value): bool
             return false;
         }
 
-        return preg_match('/^[\pL\pM\pN_-]+$/u', $value) > 0;
+        return preg_match('/^[\pL\pM\pN_-]+$/u', (string) $value) > 0;
     }
 
     /**

tests/Cases/ValidateAttributesTest.php

@@ -20,15 +20,45 @@
  */
 class ValidateAttributesTest extends TestCase
 {
+    public function testValidateAlpha()
+    {
+        $validator = new ValidatesAttributesStub();
+        $this->assertTrue($validator->validateAlpha('', 'xxx'));
+        $this->assertTrue($validator->validateAlpha('', '你好'));
+
+        $this->assertFalse($validator->validateAlpha('', '123'));
+        $this->assertFalse($validator->validateAlpha('', '123f1'));
+        $this->assertFalse($validator->validateAlpha('', 123));
+        $this->assertFalse($validator->validateAlpha('', 123.1));
+        $this->assertFalse($validator->validateAlpha('', '123_f1'));
+        $this->assertFalse($validator->validateAlpha('', 'xxx_yy'));
+    }
+
+    public function testValidateAlphaDash()
+    {
+        $validator = new ValidatesAttributesStub();
+        $this->assertTrue($validator->validateAlphaDash('', 'xxx'));
+        $this->assertTrue($validator->validateAlphaDash('', 'xxx_yy'));
+        $this->assertTrue($validator->validateAlphaDash('', '你好'));
+        $this->assertTrue($validator->validateAlphaDash('', '123'));
+        $this->assertTrue($validator->validateAlphaDash('', '123f1'));
+        $this->assertTrue($validator->validateAlphaDash('', 123));
+        $this->assertTrue($validator->validateAlphaDash('', '123_f1'));
+
+        $this->assertFalse($validator->validateAlphaDash('', 123.1));
+    }
+
     public function testValidateAlphaNum()
     {
         $validator = new ValidatesAttributesStub();
         $this->assertTrue($validator->validateAlphaNum('', 'xxx'));
         $this->assertTrue($validator->validateAlphaNum('', '123'));
         $this->assertTrue($validator->validateAlphaNum('', '123f1'));
         $this->assertTrue($validator->validateAlphaNum('', 123));
+        $this->assertTrue($validator->validateAlphaNum('', '你好'));
 
         $this->assertFalse($validator->validateAlphaNum('', 123.1));
         $this->assertFalse($validator->validateAlphaNum('', '123_f1'));
+        $this->assertFalse($validator->validateAlphaNum('', 'xxx_yy'));
     }
 }