public void Existing_connection_is_opened_and_closed_when_necessary() { var dbConnection = new FakeDbConnection("Database=FrodoLives"); using (var connection = new FakeRelationalConnection( CreateOptions(new FakeRelationalOptionsExtension { Connection = dbConnection }))) { Assert.Equal(0, connection.DbConnections.Count); connection.Open(); Assert.Equal(0, connection.DbConnections.Count); Assert.Equal(1, dbConnection.OpenCount); connection.Open(); connection.Open(); Assert.Equal(1, dbConnection.OpenCount); connection.Close(); connection.Close(); Assert.Equal(1, dbConnection.OpenCount); Assert.Equal(0, dbConnection.CloseCount); connection.Close(); Assert.Equal(1, dbConnection.OpenCount); Assert.Equal(1, dbConnection.CloseCount); connection.Open(); Assert.Equal(2, dbConnection.OpenCount); connection.Close(); Assert.Equal(2, dbConnection.OpenCount); Assert.Equal(2, dbConnection.CloseCount); } }