Add coverage report in xml format.

Author: cliffano

bin/vows

@@ -59,6 +59,7 @@ var help = [
     "  --cover-plain     Print plain coverage map if detected",
     "  --cover-html      Write coverage map to \"coverage.html\"",
     "  --cover-json      Write unified coverage map to \"coverage.json\"",
+    "  --cover-xml       Write coverage map to \"coverage.xml\" in Emma xml",
     "  --no-color        Don't use terminal colors",
     "  --version         Show version",
     "  -h, --help        You're staring at it"
@@ -134,6 +135,10 @@ while (arg = argv.shift()) {
                     options.coverage = true;
                     _coverage = require('../lib/vows/coverage/report-json');
                     break;
+                case 'cover-xml':
+                    options.coverage = true;
+                    _coverage = require('../lib/vows/coverage/report-xml');
+                    break;
                 case 'verbose':
                 case 'v':
                     options.verbose = true;

lib/vows/coverage/report-xml.js

@@ -0,0 +1,81 @@
+var util = require('util'),
+    file = require('./file');
+
+this.name = 'coverage-report-xml';
+
+this.report = function (coverageMap) {
+    var all = {
+            xml: '',
+            packages: 0,
+            files: 0,
+            lines: 0,
+            hits: 0
+        },
+        data = {};
+
+    // group data by path      
+    for (var filename in coverageMap) {
+        if (coverageMap.hasOwnProperty(filename)) {
+            var pkg = (filename.indexOf('/') > 0)
+                ? filename.substr(0, filename.lastIndexOf('/'))
+                : filename;
+            if (!data[pkg]) {
+                data[pkg] = {};
+            }
+            data[pkg][ (filename.indexOf('/'))
+                ? filename.substr(filename.lastIndexOf('/') + 1, filename.length)
+                : filename ]
+                = file.coverage(filename, coverageMap[filename]);
+        }
+    }
+
+    // generate groups xml-fragment
+    for (var pkg in data) {
+        if (data.hasOwnProperty(pkg)) {
+            var pkgStat = {
+                xml: '',
+                files: 0,
+                lines: 0,
+                hits: 0
+            };
+
+            all.xml += '\t<package name="' + pkg + '">\n';
+
+            for (var filename in data[pkg]) {
+                if (data[pkg].hasOwnProperty(filename)) {
+                    pkgStat.files += 1;
+                    pkgStat.lines += data[pkg][filename].sloc;
+                    pkgStat.hits += data[pkg][filename].hits;
+
+                    pkgStat.xml += '\t\t<srcfile name="' + filename + '">\n'
+                        + '\t\t\t<coverage type="line, %" value="' + data[pkg][filename].coverage.toFixed(2) + '%  (' + data[pkg][filename].hits + '/' + data[pkg][filename].sloc + ')"/>\n'
+                        + '\t\t</srcfile>\n';
+                }
+            }
+
+            all.packages += 1;
+            all.files += pkgStat.files;
+            all.lines += pkgStat.lines;
+            all.hits += pkgStat.hits;
+
+            all.xml += '\t\t<coverage type="line, %" value="' + ((pkgStat.hits * 100) / pkgStat.lines).toFixed(2) + '%  (' + pkgStat.hits + '/' + pkgStat.lines + ')"/>\n'
+                + pkgStat.xml
+                + '\t</package>\n';
+        }
+    }
+
+    all.xml = '<?xml version="1.0" encoding="UTF-8"?>\n'
+        + '<report>\n<stats>\n'
+        + '\t<packages value="' + all.packages + '"/>\n'
+        + '\t<classes value="0"/>\n'
+        + '\t<methods value="0"/>\n'
+        + '\t<srcfiles value="' + all.files + '"/>\n'
+        + '\t<srclines value="' + all.lines + '"/>\n'
+        + '</stats>\n<data>\n'
+        + '<all name="all classes">\n'
+        + '\t<coverage type="line, %" value="' + ((all.hits * 100) / all.lines).toFixed(2) + '%  (' + all.hits + '/' + all.lines + ')"/>\n'
+        + all.xml
+        + '</all>\n</data>\n</report>\n';
+
+    util.print(all.xml);
+};