Fix: Revert displayName change from #53 & add regression test

.eslintignore

@@ -0,0 +1 @@
+**/*.babel.js

.jscsrc

@@ -1,3 +1,4 @@
 {
-  "preset": "gulp"
+  "preset": "gulp",
+  "excludeFiles": ["**/*.babel.js"]
 }

lib/shared/registerExports.js

@@ -14,7 +14,7 @@ function registerExports(gulpInst, tasks) {
       return;
     }
 
-    gulpInst.task(task.displayName || taskName, task);
+    gulpInst.task(taskName, task);
   }
 }
 

package.json

@@ -47,6 +47,8 @@
     "yargs": "^3.28.0"
   },
   "devDependencies": {
+    "babel-preset-es2015": "^6.5.0",
+    "babel-register": "^6.5.1",
     "code": "^1.2.1",
     "coveralls": "^2.7.0",
     "eslint": "^1.7.3",

test/expected/tasks-as-exports.txt

@@ -0,0 +1,7 @@
+gulp-cli/test
+├── build
+├── clean
+└─┬ dist
+  └─┬ <series>
+    ├── clean
+    └── build

test/exports-as-tasks.js

@@ -0,0 +1,26 @@
+'use strict';
+
+var lab = exports.lab = require('lab').script();
+var code = require('code');
+var fs = require('fs');
+var child = require('child_process');
+
+var output = fs.readFileSync(__dirname + '/expected/tasks-as-exports.txt', 'utf8').replace(/(\r\n|\n|\r)/gm,'\n');
+
+// Long timeout is required because parse time is slow
+lab.experiment('exports as tasks', { timeout: 0 }, function() {
+
+  lab.test('prints the task list', function(done) {
+
+    child.exec('node ' + __dirname + '/../bin/gulp.js --tasks --gulpfile "./test/fixtures/gulpfile-exports.babel.js"', function(err, stdout) {
+      code.expect(stdout).to.contain('Tasks for');
+      stdout = stdout.replace(/\\/g, '/').split('Tasks for')[1].split('\n');
+      var outputArray = output.split('\n');
+      for (var i = 0; i < stdout.length; i++) {
+        code.expect(stdout[i]).to.contain(outputArray[i]);
+      }
+      done(err);
+    });
+  });
+
+});

test/fixtures/.babelrc

@@ -0,0 +1,3 @@
+{
+  "presets": ["es2015"]
+}

test/fixtures/gulpfile-exports.babel.js

@@ -0,0 +1,9 @@
+// jscs:disable
+
+'use strict';
+
+import gulp from 'gulp';
+
+export function clean(){};
+export function build(){};
+export const dist = gulp.series(clean, build);