Add create model request (#1603)

* add create model request

test/Microsoft.SqlTools.ServiceLayer.IntegrationTests/DacFx/DacFxServiceTests.cs

@@ -5,6 +5,7 @@
 using System;
 using System.Collections.Generic;
 using System.IO;
+using System.Linq;
 using System.Threading.Tasks;
 using Microsoft.Data.SqlClient;
 using Microsoft.SqlServer.Dac;
@@ -16,6 +17,8 @@ using Microsoft.SqlTools.ServiceLayer.DacFx.Contracts;
 using Microsoft.SqlTools.ServiceLayer.IntegrationTests.Utility;
 using Microsoft.SqlTools.ServiceLayer.TaskServices;
 using Microsoft.SqlTools.ServiceLayer.Test.Common;
+using Microsoft.SqlTools.ServiceLayer.Utility;
+using Microsoft.SqlServer.Dac.Model;
 using NUnit.Framework;
 using Moq;
 using System.Reflection;
@@ -25,6 +28,7 @@ namespace Microsoft.SqlTools.ServiceLayer.IntegrationTests.DacFx
     public class DacFxServiceTests
     {
         private string publishProfileFolder = Path.Combine("..", "..", "..", "DacFx", "PublishProfiles");
+        private string TSqlModelTestFolder = Path.Combine("..", "..", "..", "DacFx", "TSqlModels");
         private const string SourceScript = @"CREATE TABLE [dbo].[table1]
 (
     [ID] INT NOT NULL PRIMARY KEY,
@@ -687,7 +691,7 @@ FROM MissingEdgeHubInputStream'";
                     DatabaseName = targetDb.DatabaseName,
                     DeploymentOptions = new DeploymentOptions()
                     {
-                        ExcludeObjectTypes = new DeploymentOptionProperty<ObjectType[]>( new[] { ObjectType.Views })
+                        ExcludeObjectTypes = new DeploymentOptionProperty<ObjectType[]>(new[] { ObjectType.Views })
                     }
                 };
 
@@ -926,5 +930,102 @@ Streaming query statement contains a reference to missing output stream 'Missing
                 Assert.That(actualValue, Is.EqualTo(expectedValue), $"Actual Property from Service is not equal to default property for {optionRow.Key}");
             }
         }
+
+        /// <summary>
+        /// Verify the generate Tsql model operation
+        /// </summary>
+        [Test]
+        public void GenerateTSqlModelFromSqlFiles()
+        {
+            DacFxService service = new DacFxService();
+            Directory.CreateDirectory(TSqlModelTestFolder);
+            string sqlTable1DefinitionPath = Path.Join(TSqlModelTestFolder, "table1.sql");
+            string sqlTable2DefinitionPath = Path.Join(TSqlModelTestFolder, "table2.sql");
+            const string table1 = @"CREATE TABLE [dbo].[table1]
+            (
+                [ID] INT NOT NULL PRIMARY KEY,
+            )";
+            const string table2 = @"CREATE TABLE [dbo].[table2]
+            (
+                [ID] INT NOT NULL PRIMARY KEY,
+            )";
+            // create sql file
+            File.WriteAllText(sqlTable1DefinitionPath, table1);
+            File.WriteAllText(sqlTable2DefinitionPath, table2);
+
+            var generateTSqlScriptParams = new GenerateTSqlModelParams
+            {
+                ProjectUri = Path.Join(TSqlModelTestFolder, "test.sqlproj"),
+                ModelTargetVersion = "Sql160",
+                FilePaths = new[] { sqlTable1DefinitionPath, sqlTable2DefinitionPath }
+            };
+
+            GenerateTSqlModelOperation op = new GenerateTSqlModelOperation(generateTSqlScriptParams);
+            var model = op.GenerateTSqlModel();
+            var objects = model.GetObjects(DacQueryScopes.UserDefined, ModelSchema.Table).ToList();
+
+            VerifyAndCleanup(sqlTable1DefinitionPath);
+            VerifyAndCleanup(sqlTable2DefinitionPath);
+            Directory.Delete(TSqlModelTestFolder);
+
+            Assert.That(model.Version.ToString(), Is.EqualTo(generateTSqlScriptParams.ModelTargetVersion), $"Model version is not equal to {generateTSqlScriptParams.ModelTargetVersion}");
+            Assert.That(objects, Is.Not.Empty);
+
+            var tableNames = objects.Select(o => o.Name.ToString()).ToList();
+
+            Assert.That(tableNames.Count, Is.EqualTo(2), "Model was not populated correctly");
+            CollectionAssert.AreEquivalent(tableNames, new[] { "[dbo].[table1]", "[dbo].[table2]" }, "Table names do not match");
+        }
+
+        /// <summary>
+        /// Verify the generate Tsql model operation, creates an empty model when files are empty
+        /// </summary>
+        [Test]
+        public void GenerateEmptyTSqlModel()
+        {
+            DacFxService service = new DacFxService();
+            Directory.CreateDirectory(TSqlModelTestFolder);
+
+            var generateTSqlScriptParams = new GenerateTSqlModelParams
+            {
+                ProjectUri = Path.Join(TSqlModelTestFolder, "test.sqlproj"),
+                ModelTargetVersion = "Sql160",
+                FilePaths = new string[] { }
+            };
+
+            GenerateTSqlModelOperation op = new GenerateTSqlModelOperation(generateTSqlScriptParams);
+            var model = op.GenerateTSqlModel();
+
+            // clean up
+            Directory.Delete(TSqlModelTestFolder);
+
+            Assert.That(model.GetObjects(DacQueryScopes.UserDefined, ModelSchema.Table).ToList().Count, Is.EqualTo(0), "Model is not empty");
+            Assert.That(model.Version.ToString(), Is.EqualTo(generateTSqlScriptParams.ModelTargetVersion), $"Model version is not equal to {generateTSqlScriptParams.ModelTargetVersion}");
+        }
+
+        /// <summary>
+        /// Verify the generate TSql Model handle
+        /// </summary>
+        [Test]
+        public async Task VerifyGenerateTSqlModelHandle()
+        {
+            DacFxService service = new DacFxService();
+            Directory.CreateDirectory(TSqlModelTestFolder);
+
+            var generateTSqlScriptParams = new GenerateTSqlModelParams
+            {
+                ProjectUri = Path.Join(TSqlModelTestFolder, "test.sqlproj"),
+                ModelTargetVersion = "Sql160",
+                FilePaths = new string[] { }
+            };
+
+            var requestContext = new Mock<RequestContext<ResultStatus>>();
+            requestContext.Setup((RequestContext<ResultStatus> x) => x.SendResult(It.Is<ResultStatus>((result) => result.Success == true))).Returns(Task.FromResult(new object()));
+            await service.HandleGenerateTSqlModelRequest(generateTSqlScriptParams, requestContext.Object);
+
+            Directory.Delete(TSqlModelTestFolder);
+
+            Assert.True(service.projectModels.Value.Keys.Contains(generateTSqlScriptParams.ProjectUri), "Model was not stored under project uri");
+        }
     }
 }