public function test_update_list_of_installed_versions()
{
$initial_activation_history = $this->_addon->get_activation_history();
$this->assertEmpty($initial_activation_history);
$now_string = substr(date('Y-m-d H:i:s', time()), 0, -1);
//now update the list
$this->_addon->update_list_of_installed_versions($initial_activation_history, '2.0.0');
//now let's try adding more to it
$this->_addon->update_list_of_installed_versions($initial_activation_history, '3.0.0');
$new_activation_history = $this->_addon->get_activation_history();
$version_number = key($new_activation_history);
$times_installed = array_shift($new_activation_history);
$this->assertEquals('2.0.0', $version_number);
$this->assertTrue(is_array($times_installed));
$time_first_installed = array_shift($times_installed);
$this->assertEquals($now_string, substr($time_first_installed, 0, -1));
$second_version_number = key($new_activation_history);
$times_second_v_installed = array_shift($new_activation_history);
$this->assertEquals('3.0.0', $second_version_number);
$this->assertTrue(is_array($times_second_v_installed));
$time_second_v_first_installed = array_shift($times_second_v_installed);
$this->assertEquals($now_string, substr($time_second_v_first_installed, 0, -1));
}
