coreapi: dht tests

License: MIT
Signed-off-by: Łukasz Magiera <magik6k@gmail.com>

core/coreapi/dht_test.go

+package coreapi_test
+
+import (
+	"context"
+	"io"
+	"io/ioutil"
+	"testing"
+
+	coreapi "github.com/ipfs/go-ipfs/core/coreapi"
+
+	peer "gx/ipfs/QmZoWKhxUmZ2seW4BzX6fJkNR8hh9PsGModr7q171yq2SS/go-libp2p-peer"
+	blocks "gx/ipfs/Qmej7nf81hi2x2tvjRBF3mcp74sQyuDH4VMYDGd1YtXjb2/go-block-format"
+)
+
+func TestDhtFindPeer(t *testing.T) {
+	ctx := context.Background()
+	nds, apis, err := makeAPISwarm(ctx, true, 3)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	out, err := apis[2].Dht().FindPeer(ctx, peer.ID(nds[0].Identity))
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	addr := <-out
+
+	if addr.String() != "/ip4/127.0.0.1/tcp/4001" {
+		t.Errorf("got unexpected address from FindPeer: %s", addr.String())
+	}
+
+	out, err = apis[1].Dht().FindPeer(ctx, peer.ID(nds[2].Identity))
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	addr = <-out
+
+	if addr.String() != "/ip4/127.0.2.1/tcp/4001" {
+		t.Errorf("got unexpected address from FindPeer: %s", addr.String())
+	}
+}
+
+func TestDhtFindProviders(t *testing.T) {
+	ctx := context.Background()
+	nds, apis, err := makeAPISwarm(ctx, true, 3)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	p, err := addTestObject(ctx, apis[0])
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	out, err := apis[2].Dht().FindProviders(ctx, p, apis[2].Dht().WithNumProviders(1))
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	provider := <-out
+
+	if provider.String() != nds[0].Identity.String() {
+		t.Errorf("got wrong provider: %s != %s", provider.String(), nds[0].Identity.String())
+	}
+}
+
+func TestDhtProvide(t *testing.T) {
+	ctx := context.Background()
+	nds, apis, err := makeAPISwarm(ctx, true, 3)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	// TODO: replace once there is local add on unixfs or somewhere
+	data, err := ioutil.ReadAll(&io.LimitedReader{R: rnd, N: 4092})
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	b := blocks.NewBlock(data)
+	nds[0].Blockstore.Put(b)
+	p := coreapi.ParseCid(b.Cid())
+
+	out, err := apis[2].Dht().FindProviders(ctx, p, apis[2].Dht().WithNumProviders(1))
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	provider := <-out
+
+	if provider.String() != "<peer.ID >" {
+		t.Errorf("got wrong provider: %s != %s", provider.String(), nds[0].Identity.String())
+	}
+
+	err = apis[0].Dht().Provide(ctx, p)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	out, err = apis[2].Dht().FindProviders(ctx, p, apis[2].Dht().WithNumProviders(1))
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	provider = <-out
+
+	if provider.String() != nds[0].Identity.String() {
+		t.Errorf("got wrong provider: %s != %s", provider.String(), nds[0].Identity.String())
+	}
+}