maputnik/test/functional/util/coverage.js

var artifacts   = require("../../artifacts");
var fs          = require("fs");
var istanbulCov = require('istanbul-lib-coverage');

var COVERAGE_PATH = artifacts.pathSync("/coverage");


var coverage = istanbulCov.createCoverageMap({});

describe("coverage", function() {
  // Capture the coverage after each test
  afterEach(function() {
    // Code coverage
    var results = browser.execute(function() {
      return window.__coverage__;
    });

    coverage.merge(results.value);
  })

  // Dump the coverage to a file
  after(function() {
    var jsonStr = JSON.stringify(coverage, null, 2);
    fs.writeFileSync(COVERAGE_PATH+"/coverage.json", jsonStr);
  })
})