Alanren/integration test (#3657)

* add an extension for integration tests

* setup ads before running test

* test setup

* test cases

* bash script

* shorter temp folder name

* code cleanup

* add commented out original code

* fix test error

* test result path

* rename results file

* change file path

* report smoke test results

* test stablize

* test stablization and configurable test servers

* fix smoke test error

* connection provider

* simplify the integration test script

* add comment

* fix tslint error

* address PR comments

* add temp log to check whether the environment variable is already set

* remove temp log

* move api definition to testapi typing file

* exclude integration tests extension

* address comments

scripts/sql-test-integration.sh

@@ -0,0 +1,23 @@
+#!/bin/bash
+set -e
+
+if [[ "$OSTYPE" == "darwin"* ]]; then
+	realpath() { [[ $1 = /* ]] && echo "$1" || echo "$PWD/${1#./}"; }
+	ROOT=$(dirname $(dirname $(realpath "$0")))
+	VSCODEUSERDATADIR=`mktemp -d -t 'myuserdatadir'`
+	VSCODEEXTDIR=`mktemp -d -t 'myextdir'`
+else
+	ROOT=$(dirname $(dirname $(readlink -f $0)))
+	VSCODEUSERDATADIR=`mktemp -d 2>/dev/null`
+	VSCODEEXTDIR=`mktemp -d 2>/dev/null`
+fi
+
+cd $ROOT
+echo $VSCODEUSERDATADIR
+echo $VSCODEEXTDIR
+
+./scripts/code.sh --extensionDevelopmentPath=$ROOT/extensions/integration-tests --extensionTestsPath=$ROOT/extensions/integration-tests/out --user-data-dir=$VSCODEUSERDATADIR --extensions-dir=$VSCODEEXTDIR
+
+
+rm -r $VSCODEUSERDATADIR
+rm -r $VSCODEEXTDIR