Adding Mocha instance for "require('mocha')" used for testrunners

mocha/mocha-tests.ts

@@ -167,3 +167,58 @@ function test_chaining(){
         .reporter('html')
         .reporter(function(){});
 }
+
+import MochaDef = require('mocha');
+
+function test_require_constructor_empty() {
+    var instance = new MochaDef();
+}
+
+function test_require_constructor_noOptions() {
+    var instance = new MochaDef({});
+}
+
+function test_require_constructor_allOptions() {
+    var instance = new MochaDef({
+        grep: /[a-z]*/,
+        ui: 'tdd',
+        reporter: 'dot',
+        timeout: 500,
+        bail: true
+    });
+}
+
+
+function test_require_fluentParams() {
+    var instance = new MochaDef();
+
+    instance.bail(true)
+        .bail()
+        .addFile('foo.js')
+        .reporter('bdd')
+        .ui('dot')
+        .grep('[a-z]*')
+        .grep(/[a-z]*/)
+        .invert()
+        .ignoreLeaks(true)
+        .checkLeaks()
+        .growl()
+        .globals('foo')
+        .globals(['bar', 'zap'])
+        .useColors(true)
+        .useInlineDiffs(true)
+        .timeout(500)
+        .slow(100)
+        .enableTimeouts(true)
+        .asyncOnly(false)
+        .noHighlighting(true)
+        .run();
+}
+
+function test_run_withOnComplete() {
+    var instance = new MochaDef();
+
+    instance.run((failures: any[]): void => {
+        console.log(failures);
+    });
+}