Spectacular vs tape
When comparing Spectacular vs tape, the Slant community recommends tape for most people. In the question“What are the best JavaScript unit testing tools?” tape is ranked 5th while Spectacular is ranked 11th. The most important reason people chose tape is:
Very simple API that doesn't require globals, or monkey patching objects for assertions.
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Pros
Pro Simple API
Very simple API that doesn't require globals, or monkey patching objects for assertions.
Pro Built-in assert
This way you don't have to add more dependencies and external assertion libraries.
Pro No global functions
Tape does not use global methods such as "it", "describe", since they are not considered best practice in JavaScript.
Pro It follows the principles of TAP
TAP: Test Anything Protocol
Cons
Con Inactive project
Spectacular has not been contributed to in over a year, and the last active issues posted to GitHub were in 2013.
Con No concurrency
Cannot run async test cases concurrently for faster test builds.