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Add more comments to explain helper functions

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This commit is contained in:
Aleksander Mistewicz 2019-09-28 14:41:53 +02:00
parent 8053766092
commit 783959208c
1 changed files with 20 additions and 10 deletions
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30
src/yggdrasil/core_test.go
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@ -12,7 +12,7 @@ import (
"github.com/yggdrasil-network/yggdrasil-go/src/config"
)
// GenerateConfig is modification
// GenerateConfig produces default configuration with suitable modifications for tests.
func GenerateConfig() *config.NodeConfig {
cfg := config.GenerateConfig()
cfg.AdminListen = "none"
@ -22,6 +22,8 @@ func GenerateConfig() *config.NodeConfig {
return cfg
}
// GetLoggerWithPrefix creates a new logger instance wih prefix.
// If verbose is set to true, three log levels are enabled: "info", "warn", "error".
func GetLoggerWithPrefix(prefix string, verbose bool) *log.Logger {
l := log.New(os.Stderr, prefix, log.Flags())
if !verbose {
@ -33,14 +35,16 @@ func GetLoggerWithPrefix(prefix string, verbose bool) *log.Logger {
return l
}
func CreateAndConnectTwo(t testing.TB, verbose bool) (*Core, *Core) {
nodeA := Core{}
// CreateAndConnectTwo creates two nodes. nodeB connects to nodeA.
// Verbosity flag is passed to logger.
func CreateAndConnectTwo(t testing.TB, verbose bool) (nodeA *Core, nodeB *Core) {
nodeA = new(Core)
_, err := nodeA.Start(GenerateConfig(), GetLoggerWithPrefix("A: ", verbose))
if err != nil {
t.Fatal(err)
}
nodeB := Core{}
nodeB = new(Core)
_, err = nodeB.Start(GenerateConfig(), GetLoggerWithPrefix("B: ", verbose))
if err != nil {
t.Fatal(err)
@ -58,7 +62,7 @@ func CreateAndConnectTwo(t testing.TB, verbose bool) (*Core, *Core) {
t.Fatal("unexpected number of peers", l)
}
return &nodeA, &nodeB
return nodeA, nodeB
}
// WaitConnected blocks until either nodes negotiated DHT or 5 seconds passed.
@ -73,17 +77,16 @@ func WaitConnected(nodeA, nodeB *Core) bool {
return false
}
func TestCore_Start_Connect(t *testing.T) {
CreateAndConnectTwo(t, true)
}
// CreateEchoListener creates a routine listening on nodeA. It expects repeats messages of length bufLen.
// It returns a channel used to synchronize the routine with caller.
func CreateEchoListener(t testing.TB, nodeA *Core, bufLen int, repeats int) chan struct{} {
// Listen
// Listen. Doing it here guarantees that there will be something to try to connect when it returns.
listener, err := nodeA.ConnListen()
if err != nil {
t.Fatal(err)
}
// Start routine
done := make(chan struct{})
go func() {
defer listener.Close()
@ -116,6 +119,12 @@ func CreateEchoListener(t testing.TB, nodeA *Core, bufLen int, repeats int) chan
return done
}
// TestCore_Start_Connect checks if two nodes can connect together.
func TestCore_Start_Connect(t *testing.T) {
CreateAndConnectTwo(t, true)
}
// TestCore_Start_Transfer checks that messages can be passed between nodes (in both directions).
func TestCore_Start_Transfer(t *testing.T) {
nodeA, nodeB := CreateAndConnectTwo(t, true)
@ -153,6 +162,7 @@ func TestCore_Start_Transfer(t *testing.T) {
<-done
}
// BenchmarkCore_Start_Transfer estimates the possible transfer between nodes (in MB/s).
func BenchmarkCore_Start_Transfer(b *testing.B) {
nodeA, nodeB := CreateAndConnectTwo(b, false)