tests: Actually invoke mocha instead of mocking it out

See michaelleeallen#83 for rationale.

In the future, it would be useful if we could test against multiple
versions of mocha instead of just the one listed in `devDependencies`.

Closes michaelleeallen#83

.eslintrc.js

@@ -1,3 +1,5 @@
+'use strict';
+
 module.exports = {
   "env": {
     "browser": true,

.gitignore

@@ -1,7 +1,8 @@
 .c9/
 .idea/
 node_modules/
-test/subdir/
 test/*.xml
+test/output/
 node-debug*
 npm-debug*
+test-results.xml

index.js

@@ -203,6 +203,7 @@ function MochaJUnitReporter(runner, options) {
   this._antId = 0;
 
   var testsuites = [];
+  this._testsuites = testsuites;
 
   function lastSuite() {
     return testsuites[testsuites.length - 1].testsuite;
@@ -366,12 +367,12 @@ MochaJUnitReporter.prototype.removeInvalidCharacters = function(input){
  * @param {Array.<Object>} testsuites - a list of xml configs
  */
 MochaJUnitReporter.prototype.flush = function(testsuites){
-  var xml = this.getXml(testsuites);
+  this._xml = this.getXml(testsuites);
 
-  this.writeXmlToDisk(xml, this._options.mochaFile);
+  this.writeXmlToDisk(this._xml, this._options.mochaFile);
 
   if (this._options.toConsole === true) {
-    console.log(xml); // eslint-disable-line no-console
+    console.log(this._xml); // eslint-disable-line no-console
   }
 };
 

package.json

@@ -28,6 +28,7 @@
     "chai-xml": "^0.3.0",
     "eslint": "^7.0.0",
     "mocha": "^7.2.0",
+    "rimraf": "^3.0.2",
     "test-console": "^1.0.0",
     "xmllint": "^0.1.1"
   },