fixed RegexpOperator (added strict comparison)

Author: alphaitai

src/Operator/Comparator/RegexpOperator.php

@@ -18,6 +18,6 @@ final class RegexpOperator extends AbstractCompareTwo
 
     public function executeComparison(mixed $expr1, mixed $expr2): bool
     {
-        return (bool) preg_match($expr2, $expr1);
+        return preg_match($expr2, $expr1) !== false;
     }
 }

tests/Operator/Comparator/RegexpOperatorTest.php

@@ -0,0 +1,15 @@
+<?php
+
+namespace LogicTree\Test\Operator\Comparator;
+
+use LogicTree\Operator\Comparator\RegexpOperator;
+
+class RegexpOperatorTest extends \PHPUnit\Framework\TestCase
+{
+
+    public function testItMatchesExactMatch()
+    {
+        $this->assertTrue((new RegexpOperator())->executeComparison('toto', '/^[A-Z]+/'));
+    }
+
+}