Committer work - Agent tests (#5034)

* added couple tests

* added unit tests for agent extension

* added agent test in test script

extensions/agent/package.json

@@ -9,7 +9,7 @@
 	"icon": "images/sqlserver.png",
 	"aiKey": "AIF-5574968e-856d-40d2-af67-c89a14e76412",
 	"engines": {
-		"vscode": "0.10.x"
+		"vscode": "^1.25.0"
 	},
 	"activationEvents": [
 		"*"
@@ -46,7 +46,13 @@
 	},
 	"devDependencies": {
 		"mocha-junit-reporter": "^1.17.0",
-		"mocha-multi-reporters": "^1.1.7"
+		"mocha-multi-reporters": "^1.1.7",
+		"@types/mocha": "^5.2.5",
+		"@types/node": "^8.10.25",
+		"mocha": "^5.2.0",
+		"should": "^13.2.1",
+		"typemoq": "^2.1.0",
+		"vscode": "1.1.5"
 	},
 	"__metadata": {
 		"id": "10",