Adding upstream version 2.5.1.

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

search/searcher/search_numeric_range_test.go

@@ -0,0 +1,60 @@
+//  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 searcher
+
+import (
+	"reflect"
+	"testing"
+
+	"github.com/blevesearch/bleve/v2/numeric"
+)
+
+func TestSplitRange(t *testing.T) {
+	min := numeric.Float64ToInt64(1.0)
+	max := numeric.Float64ToInt64(5.0)
+	ranges := splitInt64Range(min, max, 4)
+	enumerated := ranges.Enumerate(nil)
+	if len(enumerated) != 135 {
+		t.Errorf("expected 135 terms, got %d", len(enumerated))
+	}
+
+}
+
+func TestIncrementBytes(t *testing.T) {
+	tests := []struct {
+		in  []byte
+		out []byte
+	}{
+		{
+			in:  []byte{0},
+			out: []byte{1},
+		},
+		{
+			in:  []byte{0, 0},
+			out: []byte{0, 1},
+		},
+		{
+			in:  []byte{0, 255},
+			out: []byte{1, 0},
+		},
+	}
+
+	for _, test := range tests {
+		actual := incrementBytes(test.in)
+		if !reflect.DeepEqual(actual, test.out) {
+			t.Errorf("expected %#v, got %#v", test.out, actual)
+		}
+	}
+}