Merge pull request #1148 from trjohnst/1115_tapreporter-extensions

Inheriting from internal reporters

docs/custom_reporter.md

@@ -71,8 +71,5 @@ To use your custom reporter, set `reporter` in your `testem.js` config file:
             "src/*.js",
             "tests/*_tests.js"
         ]
-        "reporter": new MyReporter()
+        "reporter": MyReporter
     };
-
-
-

lib/utils/reporter.js

@@ -14,6 +14,10 @@ function setupReporter(name, out, config, app) {
     if (TestReporter) {
       reporter = new TestReporter(false, out, config, app);
     }
+  } else if (isa(name, Function)) {
+    // name is a constructor function, ignore new-cap and instantiate
+    // eslint-disable-next-line new-cap
+    reporter = new name(false, out, config, app);
   } else {
     reporter = name;
   }

tests/utils/reporter_tests.js

@@ -11,6 +11,7 @@ var tmpNameAsync = Bluebird.promisify(tmp.tmpName);
 
 var Reporter = require('../../lib/utils/reporter');
 var FakeReporter = require('../support/fake_reporter');
+var TapReporter = require('../../lib/reporters/tap_reporter');
 
 var fsReadFileAsync = Bluebird.promisify(fs.readFile);
 var fsUnlinkAsync = Bluebird.promisify(fs.unlink);
@@ -179,6 +180,23 @@ describe('Reporter', function() {
       });
     });
 
+    it('creates a reporter when custom reporter dependent on configs is provided', function() {
+      var CustomReporter = function() {
+        TapReporter.apply(this, arguments);
+      };
+      CustomReporter.prototype = Object.create(TapReporter.prototype);
+
+      var config = { get: sinon.stub() };
+      config.get.withArgs('reporter').returns(CustomReporter);
+      config.get.withArgs('tap_quiet_logs').returns(true);
+      var app = { config: config };
+      var reporter = new Reporter(app, stream);
+
+      expect(reporter).to.be.ok();
+      expect(reporter.reporters.length).to.equal(1);
+      expect(reporter.reporters[0].quietLogs).to.be.true();
+    });
+
     it('writes xml to stream and file with xunit reporter and intermediate output is enabled', function() {
       return tmpNameAsync().then(function(path) {
         var stream = new PassThrough();