Files
dolt/go/store/prolly/utils_test.go

84 lines
2.3 KiB
Go

// Copyright 2021 Dolthub, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package prolly
import (
"context"
"io"
"testing"
"github.com/stretchr/testify/require"
"github.com/dolthub/dolt/go/store/prolly/message"
"github.com/dolthub/dolt/go/store/prolly/tree"
"github.com/dolthub/dolt/go/store/val"
)
// testMap is a utility type that allows us to create a common test
// harness for Map, memoryMap, and MutableMap.
type testMap interface {
Has(ctx context.Context, key val.Tuple) (bool, error)
Get(ctx context.Context, key val.Tuple, cb tree.KeyValueFn[val.Tuple, val.Tuple]) (err error)
IterAll(ctx context.Context) (MapIter, error)
IterRange(ctx context.Context, rng Range) (MapIter, error)
Descriptors() (val.TupleDesc, val.TupleDesc)
}
var _ testMap = Map{}
var _ testMap = &MutableMap{}
func countOrderedMap(t *testing.T, om testMap) (cnt int) {
iter, err := om.IterAll(context.Background())
require.NoError(t, err)
for {
_, _, err = iter.Next(context.Background())
if err == io.EOF {
break
}
require.NoError(t, err)
cnt++
}
return cnt
}
func keyDescFromMap(om testMap) val.TupleDesc {
switch m := om.(type) {
case Map:
return m.keyDesc
case *MutableMap:
return m.keyDesc
default:
panic("unknown ordered map")
}
}
func mustProllyMapFromTuples(t *testing.T, kd, vd val.TupleDesc, tuples [][2]val.Tuple) Map {
ctx := context.Background()
ns := tree.NewTestNodeStore()
serializer := message.NewProllyMapSerializer(vd, ns.Pool())
chunker, err := tree.NewEmptyChunker(ctx, ns, serializer)
require.NoError(t, err)
for _, pair := range tuples {
err := chunker.AddPair(ctx, tree.Item(pair[0]), tree.Item(pair[1]))
require.NoError(t, err)
}
root, err := chunker.Done(ctx)
require.NoError(t, err)
return NewMap(root, ns, kd, vd)
}