New test common project for database connections using the settings.json (#210)

* moved test driver tests and test common classes to separate projects

test/Microsoft.SqlTools.ServiceLayer.TestDriver.Tests/ConnectionTests.cs

@@ -0,0 +1,78 @@
+//
+// Copyright (c) Microsoft. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+//
+
+using System.Threading;
+using System.Threading.Tasks;
+using Microsoft.SqlTools.ServiceLayer.Test.Common;
+using Xunit;
+using Microsoft.SqlTools.ServiceLayer.Connection.Contracts;
+
+namespace Microsoft.SqlTools.ServiceLayer.TestDriver.Tests
+{
+    /// <summary>
+    /// Language Service end-to-end integration tests
+    /// </summary>
+    public class ConnectionTest
+    {
+        /// <summary>
+        /// Try to connect with invalid credentials
+        /// </summary>
+        [Fact]
+        public async Task InvalidConnection()
+        {
+            using (SelfCleaningTempFile queryTempFile = new SelfCleaningTempFile())
+            using (TestServiceDriverProvider testService = new TestServiceDriverProvider())
+            {
+                bool connected = await testService.Connect(queryTempFile.FilePath, InvalidConnectParams, 300000);
+                Assert.False(connected, "Invalid connection is failed to connect");
+
+                await testService.Connect(queryTempFile.FilePath, InvalidConnectParams, 300000);
+
+                Thread.Sleep(1000);
+
+                await testService.CancelConnect(queryTempFile.FilePath);
+
+                await testService.Disconnect(queryTempFile.FilePath);
+            }
+        }
+
+        /// <summary>
+        /// Validate list databases request
+        /// </summary>
+        [Fact]
+        public async Task ListDatabasesTest()
+        {
+            using (SelfCleaningTempFile queryTempFile = new SelfCleaningTempFile())
+            using (TestServiceDriverProvider testService = new TestServiceDriverProvider())
+            {
+                bool connected = await testService.Connect(TestServerType.OnPrem, queryTempFile.FilePath);
+                Assert.True(connected, "Connection successful");
+
+                var listDatabaseResult = await testService.ListDatabases(queryTempFile.FilePath);
+                Assert.True(listDatabaseResult.DatabaseNames.Length > 0);
+
+                await testService.Disconnect(queryTempFile.FilePath);
+            }
+        }
+
+        private static ConnectParams InvalidConnectParams
+        {
+            get
+            {
+                return new ConnectParams()
+                {
+                    Connection = new ConnectionDetails()
+                    {
+                        DatabaseName = "master",
+                        ServerName = "localhost",
+                        AuthenticationType = "SqlLogin",
+                        UserName = "invalid",
+                        Password = ".."
+                    }
+                };
+            }
+        }
+    }
+}