enclose multi-line strings in triple quotes

Author: thewunder

src/Util/StringLiteralFormatter.php

@@ -22,7 +22,11 @@ public static function formatValueForRHS($value): string
             // Do not treat value as a string if it starts with '$', which indicates that it's a variable name
             if (strpos($value, '$') !== 0) {
                 $value = str_replace('"', '\"', $value);
-                $value = "\"$value\"";
+                if (strpos($value, "\n") !== false) {
+                    $value = '"""' . $value . '"""';
+                } else {
+                    $value = "\"$value\"";
+                }
             }
         } elseif (is_bool($value)) {
             if ($value) {
@@ -84,4 +88,4 @@ public static function formatLowerCamelCase(string $stringValue): string
     {
         return lcfirst(static::formatUpperCamelCase($stringValue));
     }
-}
+}

tests/StringLiteralFormatterTest.php

@@ -37,6 +37,9 @@ public function testFormatForClassRHSValue()
         $formattedString = StringLiteralFormatter::formatValueForRHS('\'singleQuotes\'');
         $this->assertEquals('"\'singleQuotes\'"', $formattedString);
 
+        $formattedString = StringLiteralFormatter::formatValueForRHS("with \n newlines");
+        $this->assertEquals("\"\"\"with \n newlines\"\"\"", $formattedString);
+
         // Integer tests
         $integerString = StringLiteralFormatter::formatValueForRHS(25);
         $this->assertEquals('25', $integerString);
@@ -112,4 +115,4 @@ public function testFormatLowerCamelCase()
     }
 
 
-}
+}