Use C# using var to reduce nesting

Author: mythz

tests/ServiceStack.OrmLite.Tests/AdoNetDataAccessTests.cs

@@ -27,32 +27,30 @@ public class MigrateSqlServerTypes
         [Test]
         public void Can_read_from_existing_database()
         {
-            using (var db = OpenDbConnection())
+            using var db = OpenDbConnection();
+            var map = new Dictionary<int, TimeSpan>();
+
+            using (var dbCmd = db.CreateCommand())
             {
-                var map = new Dictionary<int, TimeSpan>();
+                dbCmd.CommandText = "SELECT * FROM MigrateSqlServerTypes";
 
-                using (var dbCmd = db.CreateCommand())
+                using (var reader = dbCmd.ExecuteReader())
                 {
-                    dbCmd.CommandText = "SELECT * FROM MigrateSqlServerTypes";
-
-                    using (var reader = dbCmd.ExecuteReader())
+                    while (reader.Read())
                     {
-                        while (reader.Read())
-                        {
-                            var id = reader.GetInt32(0);
-                            var sqlTime = (TimeSpan)reader.GetValue(1);
-                            map[id] = sqlTime;
-                        }
+                        var id = reader.GetInt32(0);
+                        var sqlTime = (TimeSpan)reader.GetValue(1);
+                        map[id] = sqlTime;
                     }
                 }
+            }
 
-                foreach (var entry in map)
-                {
-                    db.Update(new MigrateSqlServerTypes { Id = entry.Key, OrmLiteTimeSpan = entry.Value });
-                }
-
-                db.Select<MigrateSqlServerTypes>().PrintDump();
+            foreach (var entry in map)
+            {
+                db.Update(new MigrateSqlServerTypes { Id = entry.Key, OrmLiteTimeSpan = entry.Value });
             }
+
+            db.Select<MigrateSqlServerTypes>().PrintDump();
         }
     }
 }

tests/ServiceStack.OrmLite.Tests/ApiSqlServerTests.cs

@@ -13,7 +13,7 @@ public ApiSqlServerTests(DialectContext context) : base(context) {}
         [Test]
         public void API_SqlServer_Examples()
         {
-            var db = OpenDbConnection();
+            using var db = OpenDbConnection();
             db.DropAndCreateTable<Person>();
             db.DropAndCreateTable<PersonWithAutoId>();
 
@@ -360,7 +360,6 @@ public void API_SqlServer_Examples()
 
             db.SaveAll(new[]{ new Person { Id = 14, FirstName = "Amy", LastName = "Winehouse", Age = 27 },
                               new Person { Id = 15, FirstName = "Amy", LastName = "Winehouse", Age = 27 } });
-            db.Dispose();
         }
     }
 }

tests/ServiceStack.OrmLite.Tests/ApiSqliteTests.cs

@@ -13,7 +13,7 @@ public ApiSqliteTests(DialectContext context) : base(context) {}
         [Test]
         public void API_Sqlite_Examples()
         {
-            var db = OpenDbConnection();
+            using var db = OpenDbConnection();
             db.DropAndCreateTable<Person>();
             db.DropAndCreateTable<PersonWithAutoId>();
 
@@ -342,7 +342,6 @@ public void API_Sqlite_Examples()
 
             db.SaveAll(new[]{ new Person { Id = 14, FirstName = "Amy", LastName = "Winehouse", Age = 27 },
                               new Person { Id = 15, FirstName = "Amy", LastName = "Winehouse", Age = 27 } });
-            db.Dispose();
         }
 
     }