add bug 1

Author: optimistex

tests/Expression.php

@@ -268,5 +268,19 @@ public function testCustomClosures()
             $this->assertEquals((bool)$expr->evaluate("even($number)"), $value);
         }
     }
+
+    // -------------------------------------------------------------------------
+    public function testBug_1()
+    {
+        $expr = new Expression();
+        $expr->v += [
+            'f_price' => 500,
+            'f_width' => 500,
+            'f_turndown_0_2_f_count' => 2,
+            'f_length_metal_f_length' => 1400
+        ];
+        $formula = 'f_price*(f_width+f_turndown_0_2_f_count*10)*f_length_metal_f_length/1000000';
+        $this->assertEquals($expr->evaluate($formula), 364);
+    }
     // */
 }