public function testSubstitutionAccessors()
{
$email = new Email();
$substitutions = array("sub_1" => array("val_1.1", "val_1.2", "val_1.3"), "sub_2" => array("val_2.1", "val_2.2"), "sub_3" => array("val_3.1", "val_3.2", "val_3.3", "val_3.4"), "sub_4" => array("val_4.1", "val_4.2", "val_4.3"));
$email->setSubstitutions($substitutions);
$this->assertEquals("{\"sub\":{\"sub_1\":[\"val_1.1\",\"val_1.2\",\"val_1.3\"],\"sub_2\":[\"val_2.1\",\"val_2.2\"],\"sub_3\":[\"val_3.1\",\"val_3.2\",\"val_3.3\",\"val_3.4\"],\"sub_4\":[\"val_4.1\",\"val_4.2\",\"val_4.3\"]}}", $email->getSmtpapi()->jsonString());
}
