Setup & Teardown of Tests in node-tap or tape

setup_teardown_tap_tape.md

The node-tap and tape modules are great for testing node modules. But they don't have built-in ideas of how you should do setup and teardown. So here's one approach.

• Tests run serially. Take advantage of this, rather than doing any more advanced functional magic.
• Use global variables.

var foo, bar;

function setup(t) {
    test('setup', function(t) {
        asyncSetupFunctionLikeCreatingADatabase(function() {
            bar = 'someresult';
            t.end();
        });
    });
}

function teardown(cb) {
    test('teardown', function(t) {
        syncTearDownStuff();
        asyncTearDownFunction() {
            t.end();
        });
    });
}

setup(test);
test('hello', function(t) {
    functionThatReliesOnSetup(bar);
    t.end();
});
teardown(test);

Seems like a decent compromise for a clean setup.

this won't work if your test is async.

It will work if your tests are async, as test() function callbacks are executed in serial https://github.com/substack/tape#testname-opts-cb

tape creator @substack propose a better aproach: https://gist.github.com/substack/9561717