allow for changing path of coverage report

Author: hakubo

lib/coverage.js

@@ -1,14 +1,17 @@
 var path = require('path'),
     _ = require('underscore');
 
-var istanbul, collector;
+var istanbul,
+	collector,
+	coveragePath;
 
 try {
     istanbul = require('istanbul');
 } catch (e) {}
 
-exports.setup = function() {
+exports.setup = function(path) {
     collector = new istanbul.Collector();
+	coveragePath = typeof path === 'string' ? path : 'coverage';
 };
 
 exports.add = function(coverage) {
@@ -30,7 +33,7 @@ exports.report = function() {
     var opts, Report, reports;
 
     if (collector) {
-        opts = {dir: path.resolve('coverage')};
+        opts = {dir: path.resolve(coveragePath)};
         Report = istanbul.Report;
         reports = [Report.create('lcov', opts), Report.create('json', opts)];
         reports.forEach(function(rep) {

lib/testrunner.js

@@ -149,7 +149,7 @@ exports.run = function(files, callback) {
         files = [files];
     }
 
-    if (options.coverage || files[0].coverage) coverage.setup();
+    if (options.coverage || files[0].coverage) coverage.setup(options.coverage);
 
     files.forEach(function(file) {
         var opts = _.extend({}, options, file);