how to use multiple mochacov reporters in single Gruntfile and get the coverage report - gruntjs

Question

Currently am switching between html-cov and json-cov in my gruntfile and running the command
grunt mochacov:all > coverage.html
(or)
grunt mochacov:all > coverage.json
Here is the json portion of config from my Gruntfile.js :
mochacov : {
options : {
reporter : 'json-cov',
//reporter : 'travis-cov',
require : ['should'],
timeout: 250000,
//quiet : true,
output : 'coverage.json',
},
all: ['test/test-*.js']
},
Is there anyway using which i can get both coverage.html and coverage.json in the output by default by specifying both html-cov and json-cov somehow?

Answer 1

Sadly, looks like by default grunt-mocha-cov doesn't support this, as the reporter only accepts a 'string' (per the docs).
Theoretically this should be possible with a grunt multitask.

Answer 2

I have found out the answer for the same :-
This is what we need to have in our Gruntfile.js
mochacov: {
jsoncoverage: {
options: {
reporter: 'json-cov',
//reporter : 'travis-cov',
require: ['should'],
timeout: 250000,
//quiet : true,
output: 'reports/coverage.json'
},
all: ['test/test-*.js']
},
htmlcoverage: {
options: {
reporter: 'html-cov',
//reporter : 'travis-cov',
require: ['should'],
timeout: 250000,
//quiet : true,
output: 'reports/coverage.html'
},
all: ['test/test-*.js']
}
}
//and then the following line needs to be there :
grunt.registerTask('mochacoverage', ['mochacov:jsoncoverage', 'mochacov:htmlcoverage']);
Then we can run it using grunt mochacoverage and it will do both html and json