move mock routing tests to proper directory

mock/routing.go

-package mockrouter
+package mock
 
 import (
 	"errors"

mock/routing_test.go

+package mock
+
+import (
+	"bytes"
+	"testing"
+
+	context "github.com/jbenet/go-ipfs/Godeps/_workspace/src/code.google.com/p/go.net/context"
+	"github.com/jbenet/go-ipfs/peer"
+	u "github.com/jbenet/go-ipfs/util"
+)
+
+func TestKeyNotFound(t *testing.T) {
+
+	vrs := VirtualRoutingServer()
+	empty := vrs.Providers(u.Key("not there"))
+	if len(empty) != 0 {
+		t.Fatal("should be empty")
+	}
+}
+
+func TestSetAndGet(t *testing.T) {
+	pid := peer.ID([]byte("the peer id"))
+	p := &peer.Peer{
+		ID: pid,
+	}
+	k := u.Key("42")
+	rs := VirtualRoutingServer()
+	err := rs.Announce(p, k)
+	if err != nil {
+		t.Fatal(err)
+	}
+	providers := rs.Providers(k)
+	if len(providers) != 1 {
+		t.Fatal("should be one")
+	}
+	for _, elem := range providers {
+		if bytes.Equal(elem.ID, pid) {
+			return
+		}
+	}
+	t.Fatal("ID should have matched")
+}
+
+func TestClientFindProviders(t *testing.T) {
+	peer := &peer.Peer{ID: []byte("42")}
+	rs := VirtualRoutingServer()
+	client := rs.Client(peer)
+
+	k := u.Key("hello")
+	err := client.Provide(context.Background(), k)
+	if err != nil {
+		t.Fatal(err)
+	}
+	max := 100
+
+	providersFromHashTable := rs.Providers(k)
+
+	isInHT := false
+	for _, p := range providersFromHashTable {
+		if bytes.Equal(p.ID, peer.ID) {
+			isInHT = true
+		}
+	}
+	if !isInHT {
+		t.Fatal("Despite client providing key, peer wasn't in hash table as a provider")
+	}
+	providersFromClient := client.FindProvidersAsync(context.Background(), u.Key("hello"), max)
+	isInClient := false
+	for p := range providersFromClient {
+		if bytes.Equal(p.ID, peer.ID) {
+			isInClient = true
+		}
+	}
+	if !isInClient {
+		t.Fatal("Despite client providing key, client didn't receive peer when finding providers")
+	}
+}
+
+func TestClientOverMax(t *testing.T) {
+	rs := VirtualRoutingServer()
+	k := u.Key("hello")
+	numProvidersForHelloKey := 100
+	for i := 0; i < numProvidersForHelloKey; i++ {
+		peer := &peer.Peer{
+			ID: []byte(string(i)),
+		}
+		err := rs.Announce(peer, k)
+		if err != nil {
+			t.Fatal(err)
+		}
+	}
+	providersFromHashTable := rs.Providers(k)
+	if len(providersFromHashTable) != numProvidersForHelloKey {
+		t.Log(1 == len(providersFromHashTable))
+		t.Fatal("not all providers were returned")
+	}
+
+	max := 10
+	peer := &peer.Peer{ID: []byte("TODO")}
+	client := rs.Client(peer)
+
+	providersFromClient := client.FindProvidersAsync(context.Background(), k, max)
+	i := 0
+	for _ = range providersFromClient {
+		i++
+	}
+	if i != max {
+		t.Fatal("Too many providers returned")
+	}
+}
+
+// TODO does dht ensure won't receive self as a provider? probably not.
+func TestCanceledContext(t *testing.T) {
+	rs := VirtualRoutingServer()
+	k := u.Key("hello")
+
+	t.Log("async'ly announce infinite stream of providers for key")
+	i := 0
+	go func() { // infinite stream
+		for {
+			peer := &peer.Peer{
+				ID: []byte(string(i)),
+			}
+			err := rs.Announce(peer, k)
+			if err != nil {
+				t.Fatal(err)
+			}
+			i++
+		}
+	}()
+
+	local := &peer.Peer{ID: []byte("peer id doesn't matter")}
+	client := rs.Client(local)
+
+	t.Log("warning: max is finite so this test is non-deterministic")
+	t.Log("context cancellation could simply take lower priority")
+	t.Log("and result in receiving the max number of results")
+	max := 1000
+
+	t.Log("cancel the context before consuming")
+	ctx, cancelFunc := context.WithCancel(context.Background())
+	cancelFunc()
+	providers := client.FindProvidersAsync(ctx, k, max)
+
+	numProvidersReturned := 0
+	for _ = range providers {
+		numProvidersReturned++
+	}
+	t.Log(numProvidersReturned)
+
+	if numProvidersReturned == max {
+		t.Fatal("Context cancel had no effect")
+	}
+}