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

     1  // Copyright 2022 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 executor_test
    16  
    17  import (
    18  	"context"
    19  	"testing"
    20  
    21  	"github.com/stretchr/testify/assert"
    22  	"github.com/vescale/zgraph"
    23  	"github.com/vescale/zgraph/compiler"
    24  	"github.com/vescale/zgraph/parser"
    25  	"github.com/vescale/zgraph/session"
    26  )
    27  
    28  func TestSimpleExec(t *testing.T) {
    29  	assert := assert.New(t)
    30  	db, err := zgraph.Open(t.TempDir(), nil)
    31  	assert.Nil(err)
    32  
    33  	catalog := db.Catalog()
    34  
    35  	cases := []struct {
    36  		query string
    37  		check func(session *session.Session)
    38  	}{
    39  		{
    40  			query: "create graph g1",
    41  			check: func(_ *session.Session) {
    42  				assert.NotNil(catalog.Graph("g1"))
    43  			},
    44  		},
    45  		{
    46  			query: "use g1",
    47  			check: func(s *session.Session) {
    48  				assert.Equal("g1", s.StmtContext().CurrentGraphName())
    49  			},
    50  		},
    51  	}
    52  
    53  	ctx := context.Background()
    54  	for _, c := range cases {
    55  		parser := parser.New()
    56  		stmt, err := parser.ParseOneStmt(c.query)
    57  		assert.Nil(err)
    58  
    59  		s := db.NewSession()
    60  		sc := s.StmtContext()
    61  		exec, err := compiler.Compile(sc, stmt)
    62  		assert.Nil(err)
    63  
    64  		err = exec.Open(ctx)
    65  		assert.Nil(err)
    66  		_, err = exec.Next(ctx)
    67  		assert.Nil(err)
    68  
    69  		if c.check != nil {
    70  			c.check(s)
    71  		}
    72  	}
    73  }