added sql statement equality check for SQL Server

Author: JaBistDuNarrisch

src/Migrator.Tests/Providers/SQLServer/SQLServerTransformationProvider_AddIndexTests.cs

@@ -252,7 +252,7 @@ public void AddIndex_FilteredIndexMiscellaneousFilterTypesAndDataTypes_Success()
         ];
 
         // Act
-        Provider.AddIndex(tableName,
+        var addIndexSql = Provider.AddIndex(tableName,
             new Index
             {
                 Name = indexName,
@@ -276,7 +276,6 @@ public void AddIndex_FilteredIndexMiscellaneousFilterTypesAndDataTypes_Success()
             });
 
         // Assert
-
         var indexesFromDatabase = Provider.GetIndexes(table: tableName);
         var filteredItemsFromDatabase = indexesFromDatabase.Single().FilterItems;
 
@@ -292,5 +291,9 @@ public void AddIndex_FilteredIndexMiscellaneousFilterTypesAndDataTypes_Success()
             filteredItemsFromDatabase.Select(x => x.ColumnName.ToLowerInvariant()),
             Is.EquivalentTo(filterItems.Select(x => x.ColumnName.ToLowerInvariant()))
         );
+
+        var expectedSql = @"CREATE UNIQUE NONCLUSTERED INDEX [TestIndexName] ON [TestTable] ([TestColumn1], [TestColumn2], [TestColumn3], [TestColumn4], [TestColumn5], [TestColumn6], [TestColumn7], [TestColumn8], [TestColumn9], [TestColumn10], [TestColumn11], [TestColumn12], [TestColumn13]) WHERE [TestColumn1] = 1 AND [TestColumn2] > 2 AND [TestColumn3] >= 2323 AND [TestColumn4] <> 3434 AND [TestColumn5] <> -3434 AND [TestColumn6] < 3434345345 AND [TestColumn7] <> 'asdf' AND [TestColumn8] = 11 AND [TestColumn9] > 22 AND [TestColumn10] >= 33 AND [TestColumn11] <> 44 AND [TestColumn12] < 55 AND [TestColumn13] <= 66";
+
+        Assert.That(addIndexSql, Is.EqualTo(expectedSql));
     }
 }

src/Migrator.Tests/Providers/SQLite/SQLiteTransformationProvider_AddIndexTests.cs

@@ -108,9 +108,6 @@ public void AddIndex_FilteredIndexGreaterOrEqualThanNumber_Success()
         Assert.That(indexScriptFromDatabase, Is.EqualTo("CREATE UNIQUE INDEX TestIndexName ON TestTable (TestColumn, TestColumn2, TestColumn3) WHERE TestColumn >= 100 AND TestColumn2 = 'Hello' AND TestColumn3 = 1"));
     }
 
-    /// <summary>
-    /// This test is located in the dedicated database type folder not in the base class since partial indexes (Oracle) are not supported in the migrator at this point in time.
-    /// </summary>
     [Test]
     public void AddIndex_FilteredIndexSingle_Success()
     {