What are the key differences between laika, RTD and Safety Harness for testing Meteor applications?

Laika, RTD and Safety Harnesss are testing frameworks for Meteor.

• http://arunoda.github.io/laika/
• http://xolvio.github.io/rtd/
• http://safety-harness.meteor.com

What are the key differences between these projects? What are the pros and cons of each?

From a high-level perspective, RTD is more fully featured and is primarily aimed at:

• acceptance testing
• unit testing
• coverage reporting

Laika is lighter-weight and is squarely focused on:

• integration testing

You could do acceptance testing with Laika and integration testing with RTD... but its much easier to use a tool specifically designed for the job.

Here's a comparison chart outlining the differences:

http://safety-harness.meteor.com/comparison

At the time of writing there are still a few issues with the comparison (RTD does acceptance testing rather than integration) but its a nice overview.