/**
* Color code stack tests.
*
* @depends test_class_defined
*/
public function test_color_is_saved_and_restored()
{
$color_blue = ansi::blue();
$color_red = ansi::red();
$restored = ansi::restore();
$reset = ansi::restore();
$this->assertEquals("[34m", $color_blue);
$this->assertEquals("[31m", $color_red);
$this->assertEquals("[34m", $restored);
$this->assertEquals("[0m", $reset);
}