phalcon#15553 - Added unit test

tests/unit/Mvc/Model/Query/GetExpressionCest.php

@@ -0,0 +1,64 @@
+<?php
+
+/**
+ * This file is part of the Phalcon Framework.
+ *
+ * (c) Phalcon Team <team@phalcon.io>
+ *
+ * For the full copyright and license information, please view the LICENSE.txt
+ * file that was distributed with this source code.
+ */
+
+declare(strict_types=1);
+
+namespace Phalcon\Test\Unit\Mvc\Model\Query;
+
+use Phalcon\Mvc\Model\Query;
+use UnitTester;
+
+class GetExpressionCest
+{
+    private $PHQL_T_AND = 266;
+    private $PHQL_T_OR = 267;
+
+    /**
+     * Tests Phalcon\Mvc\Model\Query :: getExpression()
+     *
+     * @author       Phalcon Team <team@phalcon.io>
+     * @since        2021-09-21
+     * @issue        15553
+     */
+    public function mvcModelQueryGetExpression(UnitTester $I)
+    {
+        $I->wantToTest('Phalcon\Mvc\Model\Query - getExpression()');
+
+        $valueOne = [
+            'type' => 'binary-op',
+            'op' => 'AND',
+            'left' => null,
+            'right' => null,
+        ];
+        $valueTwo = [
+            'type' => 'binary-op',
+            'op' => 'OR',
+            'left' => null,
+            'right' => null,
+        ];
+
+        $oneExpr = [
+            'type' => $this->PHQL_T_AND,
+        ];
+
+        $twoExpr = [
+            'type' => $this->PHQL_T_OR,
+        ];
+
+        $query = new Query();
+        $reflection = new \ReflectionClass(Query::class);
+        $getExpression = $reflection->getMethod('getExpression');
+        $getExpression->setAccessible(true);
+
+        $I->assertEquals($getExpression->invokeArgs($query, [$oneExpr, false]), $valueOne);
+        $I->assertEquals($getExpression->invokeArgs($query, [$twoExpr, false]), $valueTwo);
+    }
+}