add check for xdescribe and xfit + add syntax test to npm test

Author: etpinard

package.json

@@ -32,7 +32,7 @@
     "citest-jasmine": "karma start test/jasmine/karma.ciconf.js",
     "test-image": "./tasks/test_image.sh",
     "test-syntax": "node test/syntax_test.js",
-    "test": "npm run test-jasmine && npm test-image",
+    "test": "npm run test-jasmine && npm test-image && npm test-syntax",
     "start-test_dashboard": "node devtools/test_dashboard/server.js",
     "start-image_viewer": "node devtools/image_viewer/server.js",
     "baseline": "./tasks/baseline.sh",

test/syntax_test.js

@@ -6,7 +6,7 @@ var glob = require('glob');
 
 var constants = require('../tasks/util/constants');
 
-var focusGlobals = ['fdescribe', 'fit'];
+var focusGlobals = ['fdescribe', 'fit', 'xdescribe', 'xit'];
 var logs = [];
 
 
@@ -19,12 +19,13 @@ glob(path.join(constants.pathToJasmineTests, '**/*.js'), function(err, files) {
                 logs.push([
                     path.basename(file),
                     '[line ' + node.loc.start.line + '] :',
-                    'contains either a *fdescribe* or a *fit* block.'
+                    'contains either a *fdescribe*, *fit*,',
+                    '*xdescribe* or *xit* block.'
                 ].join(' '));
             }
         });
 
     });
 
-    if(logs.length) throw new Error(logs.join('\n'));
+    if(logs.length) throw new Error('\n' + logs.join('\n') + '\n');
 });