refresh users global ch

src/device/input/wrap/refresh.go

@@ -6,6 +6,15 @@ import (
 	"mayhem-party/src/device/input/button"
 	"os"
 	"os/signal"
+	"syscall"
+)
+
+var (
+	ChanSigUsr1 = func() chan os.Signal {
+		c := make(chan os.Signal, 1)
+		signal.Notify(c, syscall.SIGUSR1)
+		return c
+	}()
 )
 
 type Refresh struct {
@@ -13,13 +22,11 @@ type Refresh struct {
 	input Wrap
 }
 
-func NewRefreshCh(sig os.Signal) <-chan os.Signal {
-	c := make(chan os.Signal, 1)
-	signal.Notify(c, sig)
-	return c
+func NewRefresh(newWrap func() Wrap) *Refresh {
+	return NewRefreshWith(newWrap, ChanSigUsr1)
 }
 
-func NewRefresh(newWrap func() Wrap, ch <-chan os.Signal) *Refresh {
+func NewRefreshWith(newWrap func() Wrap, ch <-chan os.Signal) *Refresh {
 	ctx, can := context.WithCancel(context.Background())
 	result := &Refresh{
 		can:   can,

src/device/input/wrap/refresh_test.go

@@ -15,7 +15,7 @@ func TestRefresh(t *testing.T) {
 	}
 	ch := make(chan os.Signal, 1)
 	defer close(ch)
-	refresh := NewRefresh(generator, ch)
+	refresh := NewRefreshWith(generator, ch)
 	defer refresh.Close()
 
 	assertIts := func(t *testing.T, b byte) {

src/device/input/wrap/wrap.go

@@ -4,7 +4,12 @@ import (
 	"context"
 	"mayhem-party/src/device/input/button"
 	"os"
-	"syscall"
+)
+
+var (
+	FlagBuffered         = os.Getenv("WRAP_BUFFERED") == "true"
+	FlagRemapFile        = os.Getenv("WRAP_REMAP_FILE")
+	FlagRefreshOnSigUsr1 = os.Getenv("WRAP_REFRESH_ON_SIGUSR1") == "true"
 )
 
 type Wrap interface {
@@ -16,23 +21,22 @@ func New(ctx context.Context, srcFunc func() button.Parser) Wrap {
 	maker := func() Wrap {
 		return srcFunc()
 	}
-	if os.Getenv("WRAP_BUFFERED") == "true" {
+	if FlagBuffered {
 		oldMaker := maker
 		maker = func() Wrap {
 			return NewBuffered(ctx, oldMaker())
 		}
 	}
-	if p := os.Getenv("WRAP_REMAP_FILE"); p != "" {
+	if FlagRemapFile != "" {
 		oldMaker := maker
 		maker = func() Wrap {
-			return NewRemapFromFile(oldMaker(), p)
+			return NewRemapFromFile(oldMaker(), FlagRemapFile)
 		}
 	}
-	if os.Getenv("WRAP_REFRESH_ON_SIGUSR1") != "" {
+	if FlagRefreshOnSigUsr1 {
 		oldMaker := maker
-		c := NewRefreshCh(syscall.SIGUSR1)
 		maker = func() Wrap {
-			return NewRefresh(oldMaker, c)
+			return NewRefresh(oldMaker)
 		}
 	}
 	return maker()

src/device/input/wrap/wrap_exported_test.go

@@ -0,0 +1,10 @@
+package wrap_test
+
+import (
+	"mayhem-party/src/device/input/wrap"
+	"testing"
+)
+
+func TestNewRefreshing(t *testing.T) {
+	wrap.FlagBuffered = true
+}