Question

I am trying TDD in Codeigniter and I’m stuck. I am using TOAST and want to test a simple feature without touching the database…

function test_get_products_by_user_id()
{
}

How to create a mock of the database for a case like this? I do not want to query the database for such tests.

Answer 1

Even though I wanted to avoid querying a real database, the answer for this is to create a separate database and fill it with dummy data for testing. You can easily switch the database when running the tests – this is written in the documentation

“The reason we use a multi-dimensional array rather than a more simple one is to permit you to optionally store multiple sets of connection values. If, for example, you run multiple environments (development, production, test, etc.) under a single installation, you can set up a connection group for each, then switch between groups as needed. For example, to set up a “test” environment you would do this:”

$db['test']['hostname'] = "localhost";
$db['test']['username'] = "root";
$db['test']['password'] = "";
$db['test']['database'] = "database_name";
$db['test']['dbdriver'] = "mysql";
$db['test']['dbprefix'] = "";
$db['test']['pconnect'] = TRUE;
$db['test']['db_debug'] = FALSE;
$db['test']['cache_on'] = FALSE;
$db['test']['cachedir'] = "";
$db['test']['char_set'] = "utf8";
$db['test']['dbcollat'] = "utf8_general_ci";
$db['test']['swap_pre'] = "";
$db['test']['autoinit'] = TRUE;
$db['test']['stricton'] = FALSE;