kvdb/test: generalize etcd tests

kvdb/test.go

@@ -0,0 +1,14 @@
+package kvdb
+
+type KV struct {
+	key string
+	val string
+}
+
+func reverseKVs(a []KV) []KV {
+	for i, j := 0, len(a)-1; i < j; i, j = i+1, j-1 {
+		a[i], a[j] = a[j], a[i]
+	}
+
+	return a
+}