chore: import upstream snapshot with attribution

testing/go/benchmark/map.go

@@ -0,0 +1,46 @@
+// Copyright 2024 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 main
+
+import (
+	"cmp"
+	"sort"
+)
+
+// KeyValue represents an entry in a map.
+type KeyValue[K comparable, V any] struct {
+	Key   K
+	Value V
+}
+
+// GetMapKVs returns the map's KeyValue entries as an unsorted slice.
+func GetMapKVs[K comparable, V any](m map[K]V) []KeyValue[K, V] {
+	allEntries := make([]KeyValue[K, V], len(m))
+	i := 0
+	for k, v := range m {
+		allEntries[i] = KeyValue[K, V]{Key: k, Value: v}
+		i++
+	}
+	return allEntries
+}
+
+// GetMapKVsSorted returns the map's KeyValue entries as a sorted slice. The keys are sorted in ascending order.
+func GetMapKVsSorted[K cmp.Ordered, V any](m map[K]V) []KeyValue[K, V] {
+	allEntries := GetMapKVs(m)
+	sort.Slice(allEntries, func(i, j int) bool {
+		return allEntries[i].Key < allEntries[j].Key
+	})
+	return allEntries
+}