code.delx.au - gnu-emacs-elpa/blob - test/parse-coverage.js

   1 #!/usr/bin/env node
   2
   3 // Copyright (C) 2014-2015  Free Software Foundation, Inc.
   4
   5 // This program is free software; you can redistribute it and/or modify
   6 // it under the terms of the GNU General Public License as published by
   7 // the Free Software Foundation, either version 3 of the License, or
   8 // (at your option) any later version.
   9
  10 // This program is distributed in the hope that it will be useful,
  11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 // GNU General Public License for more details.
  14
  15 // You should have received a copy of the GNU General Public License
  16 // along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17
  18 'use strict';
  19
  20 var padRight = function (value, padding) {
  21     return value + new Array(Math.max(0, padding - String(value).length) + 1).join(' ');
  22 };
  23
  24 var formatSourceFile = function (sourceFile) {
  25     var sourceLines = sourceFile.source.split('\n');
  26     var results = [
  27         padRight('Hits', 5) + ' | Source',
  28         new Array(80 + 1).join('-')
  29     ];
  30     var linesHit = 0;
  31     var linesHittable = 0;
  32     results = results.concat(sourceFile.coverage.map(function (hits, index) {
  33         var hitsValue = hits === null ? 'N/A' : hits;
  34         var column = hits === 0 ? '~' : '|';
  35         if (hits > 0) {
  36             linesHit += 1;
  37         }
  38         if (hits !== null) {
  39             linesHittable += 1;
  40         }
  41         return padRight(hitsValue, 5) + ' ' + column + ' ' + sourceLines[index];
  42     }));
  43     results = results.concat([
  44         '',
  45         'Lines: ' + linesHit + ' / ' + linesHittable,
  46         'Coverage: ' + (Math.round(linesHit / linesHittable * 10000) / 100) + '%'
  47     ]);
  48     return results.join('\n');
  49 };
  50
  51 var format = function (json) {
  52     return json.source_files.map(formatSourceFile).join('\n');
  53 };
  54
  55 var read = function () {
  56     var whole = '';
  57
  58     process.stdin.setEncoding('utf8');
  59
  60     process.stdin.on('readable', function () {
  61         var chunk = process.stdin.read();
  62         if (chunk !== null) {
  63             whole += chunk;
  64         }
  65     });
  66
  67     process.stdin.on('end', function () {
  68         console.log(format(JSON.parse(whole)));
  69     });
  70 };
  71
  72 read();