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// Copyright (c) 2014 Couchbase, 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 upsidedown
import (
"bytes"
"encoding/binary"
"testing"
)
func TestPartialMerge(t *testing.T) {
tests := []struct {
in [][]byte
out uint64
}{
{
in: [][]byte{dictionaryTermIncr, dictionaryTermIncr, dictionaryTermIncr, dictionaryTermIncr, dictionaryTermIncr},
out: 5,
},
}
mo := &upsideDownMerge{}
for _, test := range tests {
curr := test.in[0]
for _, next := range test.in[1:] {
var ok bool
curr, ok = mo.PartialMerge([]byte("key"), curr, next)
if !ok {
t.Errorf("expected partial merge ok")
}
}
actual := decodeCount(curr)
if actual != test.out {
t.Errorf("expected %d, got %d", test.out, actual)
}
}
}
func decodeCount(in []byte) uint64 {
buf := bytes.NewBuffer(in)
count, _ := binary.ReadUvarint(buf)
return count
}
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