diff --git a/.travis.yml b/.travis.yml
index 9e896b1..f61e3a3 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,16 @@
 language: go
 go:
-  - 1.4.3
-  - 1.5.2
+  - 1.5.3
+  - 1.6
 sudo: false
-install: go get -d -t -v ./...
+before_install:
+  - gotools=golang.org/x/tools
+install:
+  - go get -d -t -v ./...
+  - go get -v $gotools/cmd/cover
+  - go get -v $gotools/cmd/vet
+  - go get -v github.com/bradfitz/goimports
+  - go get -v github.com/golang/lint/golint
+script:
+  - export PATH=$PATH:$HOME/gopath/bin
+  - ./goclean.sh
diff --git a/chain/chain.go b/chain/chain.go
index 2e4cab0..d33bbd7 100644
--- a/chain/chain.go
+++ b/chain/chain.go
@@ -342,8 +342,8 @@ out:
 		case dequeue <- next:
 			if n, ok := next.(BlockConnected); ok {
 				bs = &waddrmgr.BlockStamp{
-					n.Height,
-					n.Hash,
+					Height: n.Height,
+					Hash:   n.Hash,
 				}
 			}
 
diff --git a/goclean.sh b/goclean.sh
new file mode 100755
index 0000000..4ce493d
--- /dev/null
+++ b/goclean.sh
@@ -0,0 +1,39 @@
+#!/bin/bash
+# The script does automatic checking on a Go package and its sub-packages, including:
+# 1. gofmt         (http://golang.org/cmd/gofmt/)
+# 2. goimports     (https://github.com/bradfitz/goimports)
+# 3. golint        (https://github.com/golang/lint)
+# 4. go vet        (http://golang.org/cmd/vet)
+# 5. race detector (http://blog.golang.org/race-detector)
+# 6. test coverage (http://blog.golang.org/cover)
+
+set -ex
+
+# Automatic checks
+test -z "$(gofmt -l -w . | tee /dev/stderr)"
+test -z "$(goimports -l -w . | tee /dev/stderr)"
+test -z "$(golint ./... | grep -v 'ALL_CAPS\|OP_\|NewFieldVal\|RpcCommand\|RpcRawCommand\|RpcSend\|Dns\|api.pb.go\|StartConsensusRpc\|factory_test.go\|legacy' | tee /dev/stderr)"
+test -z "$(go tool vet . 2>&1 | grep -v 'Example\|newestSha\|rpcserver/server.go' | tee /dev/stderr)"
+env GORACE="halt_on_error=1" go test -v -race ./...
+
+# Run test coverage on each subdirectories and merge the coverage profile.
+
+set +x
+echo "mode: count" > profile.cov
+
+# Standard go tooling behavior is to ignore dirs with leading underscores.
+for dir in $(find . -maxdepth 10 -not -path '.' -not -path './.git*' \
+    -not -path '*/_*' -not -path './cmd*' -not -path './release*' -type d)
+do
+if ls $dir/*.go &> /dev/null; then
+  go test -covermode=count -coverprofile=$dir/profile.tmp $dir
+  if [ -f $dir/profile.tmp ]; then
+    cat $dir/profile.tmp | tail -n +2 >> profile.cov
+    rm $dir/profile.tmp
+  fi
+fi
+done
+
+# To submit the test coverage result to coveralls.io,
+# use goveralls (https://github.com/mattn/goveralls)
+# goveralls -coverprofile=profile.cov -service=travis-ci
diff --git a/internal/helpers/helpers.go b/internal/helpers/helpers.go
index ba58f49..9bf3e42 100644
--- a/internal/helpers/helpers.go
+++ b/internal/helpers/helpers.go
@@ -11,6 +11,7 @@ import (
 	"github.com/btcsuite/btcutil"
 )
 
+// SumOutputValues sums up the list of TxOuts and returns an Amount.
 func SumOutputValues(outputs []*wire.TxOut) (totalOutput btcutil.Amount) {
 	for _, txOut := range outputs {
 		totalOutput += btcutil.Amount(txOut.Value)
@@ -18,6 +19,7 @@ func SumOutputValues(outputs []*wire.TxOut) (totalOutput btcutil.Amount) {
 	return totalOutput
 }
 
+// SumOutputSerializeSizes sums up the serialized size of the supplied outputs.
 func SumOutputSerializeSizes(outputs []*wire.TxOut) (serializeSize int) {
 	for _, txOut := range outputs {
 		serializeSize += txOut.SerializeSize()
diff --git a/internal/rpchelp/methods.go b/internal/rpchelp/methods.go
index 98e8a4a..cdc4fad 100644
--- a/internal/rpchelp/methods.go
+++ b/internal/rpchelp/methods.go
@@ -17,8 +17,8 @@ var (
 	returnsLTRArray    = []interface{}{(*[]btcjson.ListTransactionsResult)(nil)}
 )
 
-// Contains all methods and result types that help is generated for, for every
-// locale.
+// Methods contains all methods and result types that help is generated for,
+// for every locale.
 var Methods = []struct {
 	Method      string
 	ResultTypes []interface{}
@@ -70,6 +70,7 @@ var Methods = []struct {
 	{"walletislocked", returnsBool},
 }
 
+// HelpDescs contains the locale-specific help strings along with the locale.
 var HelpDescs = []struct {
 	Locale   string // Actual locale, e.g. en_US
 	GoLocale string // Locale used in Go names, e.g. EnUS
diff --git a/rpc/rpcserver/server.go b/rpc/rpcserver/server.go
index 7d7bdd9..892ef68 100644
--- a/rpc/rpcserver/server.go
+++ b/rpc/rpcserver/server.go
@@ -2,8 +2,8 @@
 // Use of this source code is governed by an ISC
 // license that can be found in the LICENSE file.
 
-// This package implements the RPC API and is used by the main package to start
-// gRPC services.
+// Package rpcserver implements the RPC API and is used by the main package to
+// start gRPC services.
 //
 // Full documentation of the API implemented by this package is maintained in a
 // language-agnostic document:
@@ -854,10 +854,9 @@ func (s *loaderServer) StartConsensusRpc(ctx context.Context, req *pb.StartConse
 		if err == btcrpcclient.ErrInvalidAuth {
 			return nil, grpc.Errorf(codes.InvalidArgument,
 				"Invalid RPC credentials: %v", err)
-		} else {
-			return nil, grpc.Errorf(codes.NotFound,
-				"Connection to RPC server failed: %v", err)
 		}
+		return nil, grpc.Errorf(codes.NotFound,
+			"Connection to RPC server failed: %v", err)
 	}
 
 	s.rpcClient = rpcClient
diff --git a/snacl/snacl.go b/snacl/snacl.go
index 6f9e0be..d85f81b 100644
--- a/snacl/snacl.go
+++ b/snacl/snacl.go
@@ -22,12 +22,14 @@ var (
 	prng = rand.Reader
 )
 
+// Error types and messages.
 var (
 	ErrInvalidPassword = errors.New("invalid password")
 	ErrMalformed       = errors.New("malformed data")
 	ErrDecryptFailed   = errors.New("unable to decrypt")
 )
 
+// Various constants needed for encryption scheme.
 const (
 	// Expose secretbox's Overhead const here for convenience.
 	Overhead  = secretbox.Overhead
diff --git a/waddrmgr/db.go b/waddrmgr/db.go
index 59c3292..1b2bf8c 100644
--- a/waddrmgr/db.go
+++ b/waddrmgr/db.go
@@ -1930,11 +1930,10 @@ func upgradeToVersion4(namespace walletdb.Namespace, pubPassPhrase []byte) error
 		if err == nil {
 			const str = "default account exists under old name"
 			return managerError(ErrUpgrade, str, nil)
-		} else {
-			merr, ok := err.(ManagerError)
-			if !ok || merr.ErrorCode != ErrAccountNotFound {
-				return err
-			}
+		}
+		merr, ok := err.(ManagerError)
+		if !ok || merr.ErrorCode != ErrAccountNotFound {
+			return err
 		}
 
 		return nil
diff --git a/waddrmgr/manager.go b/waddrmgr/manager.go
index 2fb3077..30b7e5d 100644
--- a/waddrmgr/manager.go
+++ b/waddrmgr/manager.go
@@ -116,8 +116,7 @@ type OpenCallbacks struct {
 	ObtainPrivatePass ObtainUserInputFunc
 }
 
-// DefaultConfig is an instance of the Options struct initialized with default
-// configuration options.
+// DefaultScryptOptions is the default options used with scrypt.
 var DefaultScryptOptions = ScryptOptions{
 	N: 262144, // 2^18
 	R: 8,
diff --git a/wallet/rescan.go b/wallet/rescan.go
index 79c99e9..ce74c57 100644
--- a/wallet/rescan.go
+++ b/wallet/rescan.go
@@ -191,7 +191,7 @@ out:
 			log.Infof("Finished rescan for %d %s (synced to block "+
 				"%s, height %d)", len(addrs), noun, n.Hash,
 				n.Height)
-			bs := waddrmgr.BlockStamp{n.Height, *n.Hash}
+			bs := waddrmgr.BlockStamp{Height: n.Height, Hash: *n.Hash}
 			if err := w.Manager.SetSyncedTo(&bs); err != nil {
 				log.Errorf("Failed to update address manager "+
 					"sync state for hash %v (height %d): %v",
diff --git a/wtxmgr/query_test.go b/wtxmgr/query_test.go
index 98af3f0..a61b3a2 100644
--- a/wtxmgr/query_test.go
+++ b/wtxmgr/query_test.go
@@ -557,8 +557,13 @@ func TestPreviousPkScripts(t *testing.T) {
 	buildTx := func(prevHash *wire.ShaHash, script0, script1 []byte) *wire.MsgTx {
 		return &wire.MsgTx{
 			TxIn: []*wire.TxIn{
-				&wire.TxIn{PreviousOutPoint: wire.OutPoint{*prevHash, 0}},
-				&wire.TxIn{PreviousOutPoint: wire.OutPoint{*prevHash, 1}},
+				&wire.TxIn{PreviousOutPoint: wire.OutPoint{
+					Hash:  *prevHash,
+					Index: 0,
+				}},
+				&wire.TxIn{PreviousOutPoint: wire.OutPoint{
+					Hash: *prevHash, Index: 1,
+				}},
 			},
 			TxOut: []*wire.TxOut{
 				&wire.TxOut{Value: 1e8, PkScript: script0},
diff --git a/wtxmgr/tx_test.go b/wtxmgr/tx_test.go
index 8a23351..87bbf94 100644
--- a/wtxmgr/tx_test.go
+++ b/wtxmgr/tx_test.go
@@ -154,7 +154,10 @@ func TestInsertsCreditsDebitsRollbacks(t *testing.T) {
 			bal: 0,
 			unc: btcutil.Amount(TstRecvTx.MsgTx().TxOut[0].Value),
 			unspents: map[wire.OutPoint]struct{}{
-				wire.OutPoint{*TstRecvTx.Sha(), 0}: {},
+				wire.OutPoint{
+					Hash:  *TstRecvTx.Sha(),
+					Index: 0,
+				}: {},
 			},
 			unmined: map[wire.ShaHash]struct{}{
 				*TstRecvTx.Sha(): {},
@@ -178,7 +181,10 @@ func TestInsertsCreditsDebitsRollbacks(t *testing.T) {
 			bal: 0,
 			unc: btcutil.Amount(TstRecvTx.MsgTx().TxOut[0].Value),
 			unspents: map[wire.OutPoint]struct{}{
-				wire.OutPoint{*TstRecvTx.Sha(), 0}: {},
+				wire.OutPoint{
+					Hash:  *TstRecvTx.Sha(),
+					Index: 0,
+				}: {},
 			},
 			unmined: map[wire.ShaHash]struct{}{
 				*TstRecvTx.Sha(): {},
@@ -202,7 +208,10 @@ func TestInsertsCreditsDebitsRollbacks(t *testing.T) {
 			bal: btcutil.Amount(TstRecvTx.MsgTx().TxOut[0].Value),
 			unc: 0,
 			unspents: map[wire.OutPoint]struct{}{
-				wire.OutPoint{*TstRecvTx.Sha(), 0}: {},
+				wire.OutPoint{
+					Hash:  *TstRecvTx.Sha(),
+					Index: 0,
+				}: {},
 			},
 			unmined: map[wire.ShaHash]struct{}{},
 		},
@@ -224,7 +233,10 @@ func TestInsertsCreditsDebitsRollbacks(t *testing.T) {
 			bal: btcutil.Amount(TstRecvTx.MsgTx().TxOut[0].Value),
 			unc: 0,
 			unspents: map[wire.OutPoint]struct{}{
-				wire.OutPoint{*TstRecvTx.Sha(), 0}: {},
+				wire.OutPoint{
+					Hash:  *TstRecvTx.Sha(),
+					Index: 0,
+				}: {},
 			},
 			unmined: map[wire.ShaHash]struct{}{},
 		},
@@ -237,7 +249,10 @@ func TestInsertsCreditsDebitsRollbacks(t *testing.T) {
 			bal: 0,
 			unc: btcutil.Amount(TstRecvTx.MsgTx().TxOut[0].Value),
 			unspents: map[wire.OutPoint]struct{}{
-				wire.OutPoint{*TstRecvTx.Sha(), 0}: {},
+				wire.OutPoint{
+					Hash:  *TstRecvTx.Sha(),
+					Index: 0,
+				}: {},
 			},
 			unmined: map[wire.ShaHash]struct{}{
 				*TstRecvTx.Sha(): {},
@@ -261,7 +276,10 @@ func TestInsertsCreditsDebitsRollbacks(t *testing.T) {
 			bal: btcutil.Amount(TstDoubleSpendTx.MsgTx().TxOut[0].Value),
 			unc: 0,
 			unspents: map[wire.OutPoint]struct{}{
-				wire.OutPoint{*TstDoubleSpendTx.Sha(), 0}: {},
+				wire.OutPoint{
+					Hash:  *TstDoubleSpendTx.Sha(),
+					Index: 0,
+				}: {},
 			},
 			unmined: map[wire.ShaHash]struct{}{},
 		},
@@ -317,7 +335,10 @@ func TestInsertsCreditsDebitsRollbacks(t *testing.T) {
 			bal: 0,
 			unc: btcutil.Amount(TstSpendingTx.MsgTx().TxOut[0].Value),
 			unspents: map[wire.OutPoint]struct{}{
-				wire.OutPoint{*TstSpendingTx.Sha(), 0}: {},
+				wire.OutPoint{
+					Hash:  *TstSpendingTx.Sha(),
+					Index: 0,
+				}: {},
 			},
 			unmined: map[wire.ShaHash]struct{}{
 				*TstSpendingTx.Sha(): {},
@@ -340,8 +361,14 @@ func TestInsertsCreditsDebitsRollbacks(t *testing.T) {
 			bal: 0,
 			unc: btcutil.Amount(TstSpendingTx.MsgTx().TxOut[0].Value + TstSpendingTx.MsgTx().TxOut[1].Value),
 			unspents: map[wire.OutPoint]struct{}{
-				wire.OutPoint{*TstSpendingTx.Sha(), 0}: {},
-				wire.OutPoint{*TstSpendingTx.Sha(), 1}: {},
+				wire.OutPoint{
+					Hash:  *TstSpendingTx.Sha(),
+					Index: 0,
+				}: {},
+				wire.OutPoint{
+					Hash:  *TstSpendingTx.Sha(),
+					Index: 1,
+				}: {},
 			},
 			unmined: map[wire.ShaHash]struct{}{
 				*TstSpendingTx.Sha(): {},
@@ -360,8 +387,14 @@ func TestInsertsCreditsDebitsRollbacks(t *testing.T) {
 			bal: btcutil.Amount(TstSpendingTx.MsgTx().TxOut[0].Value + TstSpendingTx.MsgTx().TxOut[1].Value),
 			unc: 0,
 			unspents: map[wire.OutPoint]struct{}{
-				wire.OutPoint{*TstSpendingTx.Sha(), 0}: {},
-				wire.OutPoint{*TstSpendingTx.Sha(), 1}: {},
+				wire.OutPoint{
+					Hash:  *TstSpendingTx.Sha(),
+					Index: 0,
+				}: {},
+				wire.OutPoint{
+					Hash:  *TstSpendingTx.Sha(),
+					Index: 1,
+				}: {},
 			},
 			unmined: map[wire.ShaHash]struct{}{},
 		},
@@ -374,8 +407,14 @@ func TestInsertsCreditsDebitsRollbacks(t *testing.T) {
 			bal: btcutil.Amount(TstSpendingTx.MsgTx().TxOut[0].Value + TstSpendingTx.MsgTx().TxOut[1].Value),
 			unc: 0,
 			unspents: map[wire.OutPoint]struct{}{
-				wire.OutPoint{*TstSpendingTx.Sha(), 0}: {},
-				wire.OutPoint{*TstSpendingTx.Sha(), 1}: {},
+				wire.OutPoint{
+					Hash:  *TstSpendingTx.Sha(),
+					Index: 0,
+				}: {},
+				wire.OutPoint{
+					Hash:  *TstSpendingTx.Sha(),
+					Index: 1,
+				}: {},
 			},
 			unmined: map[wire.ShaHash]struct{}{},
 		},
@@ -388,8 +427,14 @@ func TestInsertsCreditsDebitsRollbacks(t *testing.T) {
 			bal: 0,
 			unc: btcutil.Amount(TstSpendingTx.MsgTx().TxOut[0].Value + TstSpendingTx.MsgTx().TxOut[1].Value),
 			unspents: map[wire.OutPoint]struct{}{
-				wire.OutPoint{*TstSpendingTx.Sha(), 0}: {},
-				wire.OutPoint{*TstSpendingTx.Sha(), 1}: {},
+				wire.OutPoint{
+					Hash:  *TstSpendingTx.Sha(),
+					Index: 0,
+				}: {},
+				wire.OutPoint{
+					Hash:  *TstSpendingTx.Sha(),
+					Index: 1,
+				}: {},
 			},
 			unmined: map[wire.ShaHash]struct{}{
 				*TstSpendingTx.Sha(): {},