github.com/vescale/zgraph@v0.0.0-20230410094002-959c02d50f95/driver_test.go (about)

     1  // Copyright 2023 zGraph Authors. All rights reserved.
     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 zgraph_test
    16  
    17  import (
    18  	"context"
    19  	"database/sql"
    20  	"testing"
    21  
    22  	"github.com/samber/lo"
    23  	"github.com/stretchr/testify/require"
    24  )
    25  
    26  func TestDriver(t *testing.T) {
    27  	db, err := sql.Open("zgraph", t.TempDir())
    28  	require.NoError(t, err)
    29  	defer db.Close()
    30  
    31  	ctx, cancel := context.WithCancel(context.Background())
    32  	defer cancel()
    33  
    34  	conn := lo.Must1(db.Conn(ctx))
    35  	_ = lo.Must1(conn.ExecContext(ctx, "CREATE GRAPH g"))
    36  	_ = lo.Must1(conn.ExecContext(ctx, "USE g"))
    37  	_ = lo.Must1(conn.ExecContext(ctx, "INSERT VERTEX x PROPERTIES (x.a = 123)"))
    38  	rows := lo.Must1(conn.QueryContext(ctx, "SELECT x.a FROM MATCH (x)"))
    39  
    40  	var a int
    41  	require.True(t, rows.Next())
    42  	require.NoError(t, rows.Scan(&a))
    43  	require.Equal(t, 123, a)
    44  	require.False(t, rows.Next())
    45  	require.NoError(t, rows.Err())
    46  }