* 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

speech/system-test/recognize.test.js

@@ -21,7 +21,7 @@ describe('speech:recognize', function () {
     recognizeExample.main(
       path.join(__dirname, '../resources/audio.raw'),
       function (err, result) {
-        assert(!err);
+        assert.ifError(err);
         assert(result);
         assert(Array.isArray(result.results));
         assert(result.results.length === 1);

speech/system-test/recognize_streaming.test.js

@@ -22,7 +22,7 @@ describe('speech:recognize_streaming', function () {
       path.join(__dirname, '../resources/audio.raw'),
       process.env.SPEECH_API_HOST || 'speech.googleapis.com',
       function (err, results) {
-        assert(!err);
+        assert.ifError(err);
         assert(results);
         assert(results.length === 3);
         assert(results[0].results);