misc docs and fmting

exchange/bitswap/bitswap.go

@@ -28,7 +28,9 @@ import (
 var log = eventlog.Logger("bitswap")
 
 const (
-	// Number of providers to request for sending a wantlist to
+	// maxProvidersPerRequest specifies the maximum number of providers desired
+	// from the network. This value is specified because the network streams
+	// results.
 	// TODO: if a 'non-nice' strategy is implemented, consider increasing this value
 	maxProvidersPerRequest = 3
 	providerRequestTimeout = time.Second * 10

exchange/bitswap/testnet/network_test.go

@@ -10,12 +10,12 @@ import (
 	bsmsg "github.com/jbenet/go-ipfs/exchange/bitswap/message"
 	bsnet "github.com/jbenet/go-ipfs/exchange/bitswap/network"
 	peer "github.com/jbenet/go-ipfs/peer"
-	delay "github.com/jbenet/go-ipfs/util/delay"
 	mockrouting "github.com/jbenet/go-ipfs/routing/mock"
+	delay "github.com/jbenet/go-ipfs/util/delay"
 )
 
 func TestSendRequestToCooperativePeer(t *testing.T) {
-	net := VirtualNetwork(mockrouting.NewServer(),delay.Fixed(0))
+	net := VirtualNetwork(mockrouting.NewServer(), delay.Fixed(0))
 
 	idOfRecipient := peer.ID("recipient")
 

exchange/bitswap/testutils.go

@@ -26,6 +26,7 @@ func NewSessionGenerator(
 	}
 }
 
+// TODO move this SessionGenerator to the core package and export it as the core generator
 type SessionGenerator struct {
 	seq    int
 	net    tn.Network