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package integration
import (
"time"
"github.com/dexon-foundation/dexon-consensus-core/core/blockdb"
"github.com/dexon-foundation/dexon-consensus-core/core/test"
"github.com/dexon-foundation/dexon-consensus-core/core/types"
"github.com/dexon-foundation/dexon-consensus-core/crypto"
)
// PrepareNodes setups nodes for testing.
func PrepareNodes(
nodeCount int,
networkLatency, proposingLatency test.LatencyModel) (
apps map[types.NodeID]*test.App,
dbs map[types.NodeID]blockdb.BlockDatabase,
nodes map[types.NodeID]*Node,
err error) {
var (
db blockdb.BlockDatabase
key crypto.PrivateKey
)
apps = make(map[types.NodeID]*test.App)
dbs = make(map[types.NodeID]blockdb.BlockDatabase)
nodes = make(map[types.NodeID]*Node)
gov, err := test.NewGovernance(nodeCount, 700*time.Millisecond)
if err != nil {
return
}
for nID := range gov.GetNotarySet() {
apps[nID] = test.NewApp()
if db, err = blockdb.NewMemBackedBlockDB(); err != nil {
return
}
dbs[nID] = db
}
for nID := range gov.GetNotarySet() {
if key, err = gov.GetPrivateKey(nID); err != nil {
return
}
nodes[nID] = NewNode(
apps[nID],
gov,
dbs[nID],
key,
networkLatency,
proposingLatency)
}
return
}
// VerifyApps is a helper to check delivery between test.Apps
func VerifyApps(apps map[types.NodeID]*test.App) (err error) {
for vFrom, fromApp := range apps {
if err = fromApp.Verify(); err != nil {
return
}
for vTo, toApp := range apps {
if vFrom == vTo {
continue
}
if err = fromApp.Compare(toApp); err != nil {
return
}
}
}
return
}
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