Merge pull request mghoneimy#16 from actionm/win-tests

Modifying the package to adapt to non-linux operating systems
- Replacing "\n" character with PHP_EOL

Author: mghoneimy

src/FieldTrait.php

@@ -40,15 +40,15 @@ public function setSelectionSet(array $selectionSet)
      */
     protected function constructSelectionSet(): string
     {
-        $attributesString = " {\n";
+        $attributesString = " {" . PHP_EOL;
         $first            = true;
         foreach ($this->selectionSet as $attribute) {
 
             // Append empty line at the beginning if it's not the first item on the list
             if ($first) {
                 $first = false;
             } else {
-                $attributesString .= "\n";
+                $attributesString .= PHP_EOL;
             }
 
             // If query is included in attributes set as a nested query
@@ -59,7 +59,7 @@ protected function constructSelectionSet(): string
             // Append attribute to returned attributes list
             $attributesString .= $attribute;
         }
-        $attributesString .= "\n}";
+        $attributesString .= PHP_EOL . "}";
 
         return $attributesString;
     }

src/Query.php

@@ -211,7 +211,7 @@ public function __toString()
     {
         $queryFormat = static::QUERY_FORMAT;
         if (!$this->isNested && $this->fieldName !== static::OPERATION_TYPE) {
-            $queryFormat = $this->generateSignature() . " {\n" . static::QUERY_FORMAT . "\n}";
+            $queryFormat = $this->generateSignature() . " {" . PHP_EOL . static::QUERY_FORMAT . PHP_EOL . "}";
         }
         $argumentsString    = $this->constructArguments();
         $selectionSetString = $this->constructSelectionSet();