Problem
I have several tests that do the same thing in mocha. This for me, it's duplication, and is the worst thing to do when you want your system to be maintenable.
var exerciseIsPetitionActive = function (expected, dateNow) {
var actual = sut.isPetitionActive(dateNow);
chai.assert.equal(expected, actual);
};
test('test_isPetitionActive_calledWithDateUnderNumSeconds_returnTrue', function () {
exerciseIsPetitionActive(true, new Date('2013-05-21 13:11:34'));
});
test('test_isPetitionActive_calledWithDateGreaterThanNumSeconds_returnFalse', function () {
exerciseIsPetitionActive(false, new Date('2013-05-21 13:12:35'));
});
What do I need
I need a way of collapsing my duplicated mocha tests in only one.
For example, in PhpUnit (and other test frameworks) you have dataProviders.
In phpUnit a dataProvider works this way:
<?php class DataTest extends PHPUnit_Framework_TestCase {
/**
* @dataProvider provider
*/
public function testAdd($a, $b, $c)
{
$this->assertEquals($c, $a + $b);
}
public function provider()
{
return array(
array(0, 0, 0),
array(0, 1, 1),
array(1, 0, 1),
array(1, 1, 3)
);
}
}
The provider in here injects parameters to the test, and the test executes all the cases. Is perfect for duplicated test.
I want to know if in mocha is there something similar, for example, something like this:
var exerciseIsPetitionActive = function (expected, dateNow) {
var actual = sut.isPetitionActive(dateNow);
chai.assert.equal(expected, actual);
};
@usesDataProvider myDataProvider
test('test_isPetitionActive_calledWithParams_returnCorrectAnswer', function (expected, date) {
exerciseIsPetitionActive(expected, date);
});
var myDataProvider = function() {
return {
{true, new Date(..)},
{false, new Date(...)}
};
};
What I have already looked at
There is some tecnique that is called Shared Behaviours . But it does not solve the problem directly with a test suite, it just solve the problem with different components that have duplicated tests.
The Question
Do you know any way to implement dataProviders in mocha?
