github.com/dolthub/go-mysql-server@v0.18.0/sql/rowexec/showwarnings_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 rowexec
    16  
    17  import (
    18  	"io"
    19  	"testing"
    20  
    21  	"github.com/stretchr/testify/require"
    22  
    23  	"github.com/dolthub/go-mysql-server/sql"
    24  	"github.com/dolthub/go-mysql-server/sql/plan"
    25  )
    26  
    27  func TestShowWarnings(t *testing.T) {
    28  	require := require.New(t)
    29  
    30  	ctx := sql.NewEmptyContext()
    31  	ctx.Session.Warn(&sql.Warning{Level: "l1", Message: "w1", Code: 1})
    32  	ctx.Session.Warn(&sql.Warning{Level: "l2", Message: "w2", Code: 2})
    33  	ctx.Session.Warn(&sql.Warning{Level: "l4", Message: "w3", Code: 3})
    34  
    35  	sw := plan.ShowWarnings(ctx.Session.Warnings())
    36  	require.True(sw.Resolved())
    37  
    38  	it, err := DefaultBuilder.Build(ctx, sw, nil)
    39  	require.NoError(err)
    40  
    41  	n := 3
    42  	for row, err := it.Next(ctx); err == nil; row, err = it.Next(ctx) {
    43  		level := row[0].(string)
    44  		code := row[1].(int)
    45  		message := row[2].(string)
    46  
    47  		t.Logf("level: %s\tcode: %v\tmessage: %s\n", level, code, message)
    48  
    49  		require.Equal(n, code)
    50  		n--
    51  	}
    52  	if err != io.EOF {
    53  		require.NoError(err)
    54  	}
    55  	require.NoError(it.Close(ctx))
    56  }