--- /dev/null
+--TEST--
+Twig manages negative numbers as default parameters
+--TEMPLATE--
+{% import _self as macros %}
+{{ macros.negative_number1() }}
+{{ macros.negative_number2() }}
+{{ macros.negative_number3() }}
+{{ macros.positive_number1() }}
+{{ macros.positive_number2() }}
+{% macro negative_number1(nb=-1) %}{{ nb }}{% endmacro %}
+{% macro negative_number2(nb = --1) %}{{ nb }}{% endmacro %}
+{% macro negative_number3(nb = - 1) %}{{ nb }}{% endmacro %}
+{% macro positive_number1(nb = +1) %}{{ nb }}{% endmacro %}
+{% macro positive_number2(nb = ++1) %}{{ nb }}{% endmacro %}
+--DATA--
+return array()
+--EXPECT--
+-1
+1
+-1
+1
+1