Adding upstream version 2.5.1.

Signed-off-by: Daniel Baumann <daniel@debian.org>

index/upsidedown/store/null/null_test.go

@@ -0,0 +1,92 @@
+//  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 null
+
+import (
+	"testing"
+
+	store "github.com/blevesearch/upsidedown_store_api"
+)
+
+func TestStore(t *testing.T) {
+	s, err := New(nil, nil)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	NullTestKVStore(t, s)
+}
+
+// NullTestKVStore has very different expectations
+// compared to CommonTestKVStore
+func NullTestKVStore(t *testing.T, s store.KVStore) {
+
+	writer, err := s.Writer()
+	if err != nil {
+		t.Error(err)
+	}
+
+	batch := writer.NewBatch()
+	batch.Set([]byte("b"), []byte("val-b"))
+	batch.Set([]byte("c"), []byte("val-c"))
+	batch.Set([]byte("d"), []byte("val-d"))
+	batch.Set([]byte("e"), []byte("val-e"))
+	batch.Set([]byte("f"), []byte("val-f"))
+	batch.Set([]byte("g"), []byte("val-g"))
+	batch.Set([]byte("h"), []byte("val-h"))
+	batch.Set([]byte("i"), []byte("val-i"))
+	batch.Set([]byte("j"), []byte("val-j"))
+
+	err = writer.ExecuteBatch(batch)
+	if err != nil {
+		t.Fatal(err)
+	}
+	err = writer.Close()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	reader, err := s.Reader()
+	if err != nil {
+		t.Error(err)
+	}
+	defer func() {
+		err := reader.Close()
+		if err != nil {
+			t.Fatal(err)
+		}
+	}()
+	it := reader.RangeIterator([]byte("b"), nil)
+	key, val, valid := it.Current()
+	if valid {
+		t.Fatalf("valid true, expected false")
+	}
+	if key != nil {
+		t.Fatalf("expected key nil, got %s", key)
+	}
+	if val != nil {
+		t.Fatalf("expected value nil, got %s", val)
+	}
+
+	err = it.Close()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	err = s.Close()
+	if err != nil {
+		t.Fatal(err)
+	}
+}