* Refactored Pub/Sub samples into nice command-line programs, like the new Cloud Storage samples (#164)

* Brought Pub/Sub samples code coverage up to 98.66%

Author: jmdobry

handwritten/logging-winston/samples/system-test/export.test.js

@@ -18,7 +18,7 @@ var exportExample = require('../export');
 describe('logging:export', function () {
   it('should list sinks', function (done) {
     exportExample.main(function (err, sinks) {
-      assert(!err);
+      assert.ifError(err);
       assert(sinks, 'should have received sinks');
       assert(Array.isArray(sinks), 'sinks should be an array');
       done();

handwritten/logging-winston/samples/system-test/list.test.js

@@ -18,7 +18,7 @@ var listExample = require('../list');
 describe('logging:list', function () {
   it('should list entries', function (done) {
     listExample.main(undefined, function (err, entries, nextQuery, apiResponse) {
-      assert(!err);
+      assert.ifError(err);
       assert(entries, 'should have received entries');
       assert(Array.isArray(entries), 'entries should be an array');
       assert(nextQuery, 'should have received nextQuery');

handwritten/logging-winston/samples/system-test/write.test.js

@@ -21,7 +21,7 @@ describe('logging:write', function () {
       if (err && err.code === 404) {
         return done();
       }
-      assert(!err);
+      assert.ifError(err);
       assert(results.length === 2, 'should have two results');
       done();
     });