Return Task to prevent unhandled promise warning

[jnicklas]

This makes runTest on the runner return a task, rather than a promise.

Since we call runTest without actually observing the result thereof, if we convert the task into a promise, we end up in a situation where we have created a promise but not attached any error handlers to it. This causes a warning to be printed to the console. By returning the task directly and not converting it to a promise, we avoid this problem and also increase flexibility in how the runner is used.

[changeset-bot[bot]]

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Latest commit: 7345735c7068a9dafc5a63cf5ed994b9aef7b242

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