Consistency between digits and digits_between validation rules (#42358)

Author: taai

src/Illuminate/Validation/Concerns/ValidatesAttributes.php

@@ -564,7 +564,18 @@ public function validateDigits($attribute, $value, $parameters)
     {
         $this->requireParameterCount(1, $parameters, 'digits');
 
-        return ! preg_match('/[^0-9]/', $value)
+        $length = strlen((string) $value);
+
+        if (((string) $value) === '.') {
+            return false;
+        }
+
+        // Make sure there is not more than one dot...
+        if (($length - strlen(str_replace('.', '', (string) $value))) > 1) {
+            return false;
+        }
+
+        return ! preg_match('/[^0-9.]/', $value)
                     && strlen((string) $value) == $parameters[0];
     }
 

tests/Validation/ValidationValidatorTest.php

@@ -2272,6 +2272,30 @@ public function testValidateDigits()
         $v = new Validator($trans, ['foo' => '2e7'], ['foo' => 'Digits:3']);
         $this->assertTrue($v->fails());
 
+        $v = new Validator($trans, ['foo' => '1.2'], ['foo' => 'digits:3']);
+        $this->assertTrue($v->passes());
+
+        $v = new Validator($trans, ['foo' => '0.9876'], ['foo' => 'digits:5']);
+        $this->assertTrue($v->fails());
+
+        $v = new Validator($trans, ['foo' => '1..2'], ['foo' => 'digits:4']);
+        $this->assertTrue($v->fails());
+
+        $v = new Validator($trans, ['foo' => '123.456.789'], ['foo' => 'digits:10']);
+        $this->assertTrue($v->fails());
+
+        $v = new Validator($trans, ['foo' => '...'], ['foo' => 'digits:3']);
+        $this->assertTrue($v->fails());
+
+        $v = new Validator($trans, ['foo' => '.'], ['foo' => 'digits:1']);
+        $this->assertTrue($v->fails());
+
+        $v = new Validator($trans, ['foo' => '.2'], ['foo' => 'digits:2']);
+        $this->assertTrue($v->passes());
+
+        $v = new Validator($trans, ['foo' => '2.'], ['foo' => 'digits:2']);
+        $this->assertTrue($v->passes());
+
         $trans = $this->getIlluminateArrayTranslator();
         $v = new Validator($trans, ['foo' => '12345'], ['foo' => 'digits_between:1,6']);
         $this->assertTrue($v->passes());