Simplecov: TextFormatter like istanbul's text coverage report

[tansaku]

I've searched through the issues and found a couple of mentions of istanbul, but no one sharing the particular text output format it uses, e.g.

----------------|----------|----------|----------|----------|----------------|
File            |  % Stmts | % Branch |  % Funcs |  % Lines |Uncovered Lines |
----------------|----------|----------|----------|----------|----------------|
All files       |    79.41 |     57.5 |    83.78 |    79.41 |                |
 async-voter.js |     88.1 |    77.78 |      100 |     88.1 |... 49,75,76,77 |
 index.js       |       95 |    83.33 |       50 |       95 |             19 |
 persist.js     |    46.88 |       25 |       50 |    46.88 |... 55,69,77,79 |
----------------|----------|----------|----------|----------|----------------|

I find this quick and simple text output at the end of a test run to be super useful. Is there an existing textformatter that I can use with simplecov that will output this kind of data on the command line after a test run?

A bit like the rspec --profile option does?

Maybe this will require writing my own formatter? presumably simplecov can output data to the command line - not just static files?

Many thanks in advance

[PragTob]

:wave:

An overview of existing formatters can be found here: https://github.com/colszowka/simplecov/blob/master/doc/alternate-formatters.md

Failing at that, yes you'd need your own formatter or we could make an official simplecov text formatter - quite honestly I don't have much time allocated for simplecov these days though.

[tansaku]

@PragTob totally understand about not having much time :-) happy to write a formatter if you can point me at anything that will help me get started - are there any docs on making a formatter, or is it just a question of looking through the existing formatters to get a feel for how to create one?

[PragTob]

@tansaku Sadly I think those are pretty much the best docs we got on that. For tests etc. we have a simple formatter here: https://github.com/colszowka/simplecov/blob/master/lib/simplecov/formatter/simple_formatter.rb

Taking a look at the result object and the methods it provides should give you the best way to look at it :)

Cheers!

[tansaku]

thanks @PragTob - I just started playing with that simpleformatter in one of our projects - result.groups seems to be {} however many tests I run - weird - probably our project, but if that's a usual gotcha you know about ...

I should maybe start with a fresh project ...

[PragTob]

@tansaku best to look at how the html formatter handles it, as it's by far the most used/tested one :)

[tansaku]

ah, looks like someone did it already https://github.com/chetan/simplecov-console