governance: implement delegate/undelegate function and add tests (#33)

Implement delegate/undelegate function to allow others to delegate it's
fund to stake on a node. Also added governance contract tests.

2 files changed, 4 insertions, 4 deletions

diff --git a/dex/app.go b/dex/app.go
index e0280dc2c..99514ed83 100644
--- a/dex/app.go
+++ b/dex/app.go
@@ -245,7 +245,7 @@ func (d *DexconApp) PrepareWitness(consensusHeight uint64) (witness coreTypes.Wi
 	if lastPendingHeight == 0 && consensusHeight == 0 {
 		witnessBlock = d.blockchain.CurrentBlock()
 	} else if lastPendingHeight >= consensusHeight {
-		witnessBlock = d.blockchain.GetPendingBlock()
+		witnessBlock = d.blockchain.PendingBlock()
 	} else {
 		log.Error("last pending height too low", "lastPendingHeight", lastPendingHeight,
 			"consensusHeight", consensusHeight)
diff --git a/dex/governance.go b/dex/governance.go
index f555b3508..db33f7820 100644
--- a/dex/governance.go
+++ b/dex/governance.go
@@ -100,7 +100,7 @@ func (d *DexconGovernance) Configuration(round uint64) *coreTypes.Config {
 		NumChains:        c.NumChains,
 		LambdaBA:         time.Duration(c.LambdaBA) * time.Millisecond,
 		LambdaDKG:        time.Duration(c.LambdaDKG) * time.Millisecond,
-		K:                c.K,
+		K:                int(c.K),
 		PhiRatio:         c.PhiRatio,
 		NotarySetSize:    c.NotarySetSize,
 		DKGSetSize:       c.DKGSetSize,
@@ -172,12 +172,12 @@ func (d *DexconGovernance) ProposeCRS(round uint64, signedCRS []byte) {
 	}
 }
 
-// NodeSet returns the current notary set.
+// NodeSet returns the current node set.
 func (d *DexconGovernance) NodeSet(round uint64) []coreCrypto.PublicKey {
 	s := d.getGovStateAtRound(round)
 	var pks []coreCrypto.PublicKey
 
-	for _, n := range s.Nodes() {
+	for _, n := range s.QualifiedNodes() {
 		pk, err := coreEcdsa.NewPublicKeyFromByteSlice(n.PublicKey)
 		if err != nil {
 			panic(err)