IntType fix (#142)

Author: aleswita

src/IntType.php

@@ -17,7 +17,7 @@ final public static function from(
 			return (int) $value;
 		}
 
-		if (Validators::isNumeric($value) && (int) $value === (int) \ceil(\abs((float) $value))) {
+		if (Validators::isNumeric($value) && \abs((int) $value) === (int) \ceil(\abs((float) $value))) {
 			return (int) $value;
 		}
 

tests/IntTypeTest.phpt

@@ -45,6 +45,9 @@ final class IntTypeTest extends TestCase
 			'1',
 			1.000_00,
 			'1.00000',
+			-1,
+			-1.0,
+			'-1.0',
 		];
 
 		foreach ($invalid as $value) {