Add 64 bit check for Alpine

Author: AdityaHirapara

lib/LocalBinary.js

@@ -18,13 +18,13 @@ function LocalBinary(){
       this.windows = true;
       return 'https://bstack-local-prod.s3.amazonaws.com/BrowserStackLocal.exe';
     } else {
-      if(this.isAlpine()) {
-        return 'https://bstack-local-prod.s3.amazonaws.com/BrowserStackLocal-alpine';
-      } else {
-        if(this.is64bits)
-          return 'https://bstack-local-prod.s3.amazonaws.com/BrowserStackLocal-linux-x64';
+      if(this.is64bits) {
+        if(this.isAlpine())
+          return 'https://bstack-local-prod.s3.amazonaws.com/BrowserStackLocal-alpine';
         else
-          return 'https://bstack-local-prod.s3.amazonaws.com/BrowserStackLocal-linux-ia32';
+          return 'https://bstack-local-prod.s3.amazonaws.com/BrowserStackLocal-linux-x64';
+      } else {
+        return 'https://bstack-local-prod.s3.amazonaws.com/BrowserStackLocal-linux-ia32';
       }
     }
   };

test/local.js

@@ -354,6 +354,7 @@ describe('LocalBinary', function () {
     it('should return download path of alpine linux binary', function() {
       sandBox.stub(localBinary, 'hostOS', 'linux');
       localBinary.isAlpine = sandBox.stub(localBinary, 'isAlpine').returns(true);
+      sandBox.stub(localBinary, 'is64bits', true);
       expect(localBinary.getDownloadPath()).to.equal('https://bstack-local-prod.s3.amazonaws.com/BrowserStackLocal-alpine');
     });