moving test under dht folder

tests/dht/test_helper.nim

@@ -0,0 +1,55 @@
+import
+  stew/shims/net, bearssl, chronos,
+  eth/keys,
+  ../../eth/p2p/discoveryv5/[enr, node, routing_table],
+  ../../eth/p2p/discoveryv5/protocol as discv5_protocol
+
+export net
+
+proc localAddress*(port: int): Address =
+  Address(ip: ValidIpAddress.init("127.0.0.1"), port: Port(port))
+
+proc initDiscoveryNode*(
+    rng: ref BrHmacDrbgContext,
+    privKey: PrivateKey,
+    address: Address,
+    bootstrapRecords: openArray[Record] = [],
+    localEnrFields: openArray[(string, seq[byte])] = [],
+    previousRecord = none[enr.Record]()):
+    discv5_protocol.Protocol =
+  # set bucketIpLimit to allow bucket split
+  let config = DiscoveryConfig.init(1000, 24, 5)
+
+  let protocol = newProtocol(
+    privKey,
+    some(address.ip),
+    some(address.port), some(address.port),
+    bindPort = address.port,
+    bootstrapRecords = bootstrapRecords,
+    localEnrFields = localEnrFields,
+    previousRecord = previousRecord,
+    config = config,
+    rng = rng)
+
+  protocol.open()
+
+  protocol
+
+proc nodeIdInNodes*(id: NodeId, nodes: openArray[Node]): bool =
+  for n in nodes:
+    if id == n.id: return true
+
+proc generateNode*(privKey: PrivateKey, port: int = 20302,
+    ip: ValidIpAddress = ValidIpAddress.init("127.0.0.1"),
+    localEnrFields: openArray[FieldPair] = []): Node =
+  let port = Port(port)
+  let enr = enr.Record.init(1, privKey, some(ip),
+    some(port), some(port), localEnrFields).expect("Properly intialized private key")
+  result = newNode(enr).expect("Properly initialized node")
+
+proc generateNRandomNodes*(rng: ref BrHmacDrbgContext, n: int): seq[Node] =
+  var res = newSeq[Node]()
+  for i in 1..n:
+    let node = generateNode(PrivateKey.random(rng[]))
+    res.add(node)
+  res

tests/dht/test_providers.nim

@@ -13,10 +13,10 @@ import
   std/sequtils,
   chronos, stew/byteutils, nimcrypto, testutils/unittests,
   eth/keys,
-  ../../eth/p2p/providers,
+  ../../dht/providers,
   chronicles,
   ../../eth/p2p/discoveryv5/protocol as discv5_protocol,
-  ./discv5_test_helper,
+  test_helper,
   libp2p/routing_record,
   libp2p/multihash,
   libp2p/multicodec