Remove Extension Dependencies when running unit test

.travis.yml

@@ -20,4 +20,6 @@ install:
 
 script:
   - npm run tslint
-  - npm test --silent
+  - node CI/removeExtensionDependencies.js
+  - npm test --silent
+  - node CI/restoreExtensionDependencies.js

CI/removeExtensionDependencies.js

@@ -0,0 +1,4 @@
+const fs = require("fs");
+const packageJson = JSON.parse(fs.readFileSync("package.json"));
+packageJson.extensionDependencies = [];
+fs.writeFileSync("package.json", JSON.stringify(packageJson, null, 2) + "\n");

CI/restoreExtensionDependencies.js

@@ -0,0 +1,4 @@
+const fs = require("fs");
+const packageJson = JSON.parse(fs.readFileSync("package.json"));
+packageJson.extensionDependencies = ["ms-vscode.azure-account"];
+fs.writeFileSync("package.json", JSON.stringify(packageJson, null, 2) + "\n");