github.com/dolthub/go-mysql-server@v0.18.0/sql/expression/function/user_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/assert"
    22  	"github.com/stretchr/testify/require"
    23  
    24  	"github.com/dolthub/go-mysql-server/sql"
    25  )
    26  
    27  func TestUser(t *testing.T) {
    28  	userFunc := sql.NewFunction0("user", NewUser)
    29  	fn := userFunc.Fn
    30  
    31  	session := sql.NewBaseSessionWithClientServer("server", sql.Client{Address: "client", User: "root"}, 0)
    32  	ctx := sql.NewContext(context.TODO(), sql.WithSession(session))
    33  
    34  	user, err := fn().Eval(ctx, nil)
    35  	require.NoError(t, err)
    36  	assert.Equal(t, "root@client", user)
    37  
    38  	session = sql.NewBaseSessionWithClientServer("server", sql.Client{Address: "client", User: "someguy"}, 0)
    39  	ctx = sql.NewContext(context.TODO(), sql.WithSession(session))
    40  
    41  	user, err = fn().Eval(ctx, nil)
    42  	require.NoError(t, err)
    43  	assert.Equal(t, "someguy@client", user)
    44  
    45  	ctx = sql.NewEmptyContext()
    46  
    47  	user, err = fn().Eval(ctx, nil)
    48  	require.NoError(t, err)
    49  	assert.Equal(t, "", user)
    50  }