fix(bower): change check for bower to use execSync.

Author: jthoms1

lib/utils/bower.js

@@ -49,10 +49,9 @@ function saveData(bowerData) {
 
 function checkForBower() {
   try {
-    var result = childProcess.exec('bower -v', { silent: true });
-    if (result.hasOwnProperty('output') &&
-        result.output.indexOf('command not found') === -1 &&
-        result.output.indexOf('not recognized') === -1) {
+    var result = childProcess.execSync('bower -v', { silent: true, encoding: 'utf8' });
+    if (result.indexOf('command not found') === -1 &&
+        result.indexOf('not recognized') === -1) {
       return true;
     }
   } catch (ex) {} // eslint-disable-line no-empty

spec/utils/bower.spec.js

@@ -149,31 +149,30 @@ describe('saveData function', function() {
 
 describe('checkForBower function', function() {
   it('should return true if bower is installed', function() {
-    spyOn(childProcess, 'exec').andReturn({
-      output: '0'
-    });
+    spyOn(childProcess, 'execSync').andReturn('1.7.9\n');
+    var result = bowerUtils.checkForBower();
+    expect(result).toEqual(true);
+  });
+  it('should return true if bower is installed', function() {
+    spyOn(childProcess, 'execSync').andReturn('0');
     var result = bowerUtils.checkForBower();
     expect(result).toEqual(true);
   });
 
   it('should return false if bower exec returns "command not found"', function() {
-    spyOn(childProcess, 'exec').andReturn({
-      output: 'command not found'
-    });
+    spyOn(childProcess, 'execSync').andReturn('command not found');
     var result = bowerUtils.checkForBower();
     expect(result).toEqual(false);
   });
 
   it('should return false if bower exec returns "not recognized"', function() {
-    spyOn(childProcess, 'exec').andReturn({
-      output: 'not recognized'
-    });
+    spyOn(childProcess, 'execSync').andReturn('not recognized');
     var result = bowerUtils.checkForBower();
     expect(result).toEqual(false);
   });
 
   it('should return false if bower exec throws an error', function() {
-    spyOn(childProcess, 'exec').andCallFake(function() {
+    spyOn(childProcess, 'execSync').andCallFake(function() {
       throw new Error('something happened');
     });
     var result = bowerUtils.checkForBower();