.NET Core App Coverage and Report gulp

gulpfile.js

var gulp = require("gulp"),
    rimraf = require("rimraf"),
    concat = require("gulp-concat")
    exec = require("gulp-exec");

gulp.task('report', ['test'], function(cb) {
    return exec('ReportGenerator.exe -reports:coverage.xml" -targetdir:"coverage\"');
});

gulp.task('test', function(cb) {
    return exec('OpenCover.Console "-target:C:\Program Files\dotnet\dotnet.exe" -targetargs:test -register:user -filter:"+[*]* -[xunit*]* -[*.Testing]*" -output:coverage.xml -oldStyle');
});