[Validator] Fix annotation default for @count and @Length

Author: vudaltsov

Constraints/Count.php

@@ -43,6 +43,9 @@ public function __construct($options = null)
                 'min' => $options,
                 'max' => $options,
             ];
+        } elseif (\is_array($options) && isset($options['value']) && !isset($options['min']) && !isset($options['max'])) {
+            $options['min'] = $options['max'] = $options['value'];
+            unset($options['value']);
         }
 
         parent::__construct($options);

Constraints/Length.php

@@ -47,6 +47,9 @@ public function __construct($options = null)
                 'min' => $options,
                 'max' => $options,
             ];
+        } elseif (\is_array($options) && isset($options['value']) && !isset($options['min']) && !isset($options['max'])) {
+            $options['min'] = $options['max'] = $options['value'];
+            unset($options['value']);
         }
 
         parent::__construct($options);

Tests/Constraints/CountValidatorTest.php

@@ -195,4 +195,13 @@ public function testDefaultOption()
         $this->assertEquals(5, $constraint->min);
         $this->assertEquals(5, $constraint->max);
     }
+
+    public function testConstraintAnnotationDefaultOption()
+    {
+        $constraint = new Count(['value' => 5, 'exactMessage' => 'message']);
+
+        $this->assertEquals(5, $constraint->min);
+        $this->assertEquals(5, $constraint->max);
+        $this->assertEquals('message', $constraint->exactMessage);
+    }
 }

Tests/Constraints/LengthValidatorTest.php

@@ -237,11 +237,20 @@ public function testOneCharset($value, $charset, $isValid)
         }
     }
 
-    public function testConstraintGetDefaultOption()
+    public function testConstraintDefaultOption()
     {
         $constraint = new Length(5);
 
         $this->assertEquals(5, $constraint->min);
         $this->assertEquals(5, $constraint->max);
     }
+
+    public function testConstraintAnnotationDefaultOption()
+    {
+        $constraint = new Length(['value' => 5, 'exactMessage' => 'message']);
+
+        $this->assertEquals(5, $constraint->min);
+        $this->assertEquals(5, $constraint->max);
+        $this->assertEquals('message', $constraint->exactMessage);
+    }
 }