github.com/dolthub/go-mysql-server@v0.18.0/sql/expression/function/connection_id_test.go (about)

     1  // Copyright 2020-2021 Dolthub, Inc.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package function
    16  
    17  import (
    18  	"context"
    19  	"testing"
    20  
    21  	"github.com/stretchr/testify/require"
    22  
    23  	"github.com/dolthub/go-mysql-server/sql"
    24  )
    25  
    26  func TestConnectionID(t *testing.T) {
    27  	require := require.New(t)
    28  
    29  	session := sql.NewBaseSessionWithClientServer("", sql.Client{Address: "localhost", User: "root"}, 2)
    30  	ctx := sql.NewContext(context.Background(), sql.WithSession(session))
    31  
    32  	connIDFunc := sql.NewFunction0("connection_id", NewConnectionID)
    33  	result, err := connIDFunc.Fn().Eval(ctx, nil)
    34  	require.NoError(err)
    35  	require.Equal(uint32(2), result)
    36  }