use blocking mode pre-go1.11

ipv4_test.go

@@ -1,9 +1,7 @@
 package water
 
 import (
-	"context"
 	"testing"
-	"time"
 )
 
 const BUFFERSIZE = 1522
@@ -22,30 +20,3 @@ func startRead(t *testing.T, ifce *Interface, dataCh chan<- []byte, errCh chan<-
 		}
 	}()
 }
-
-func TestCloseUnblockPendingRead(t *testing.T) {
-	ifce, err := New(Config{DeviceType: TUN})
-	if err != nil {
-		t.Fatalf("creating TUN error: %v\n", err)
-	}
-
-	c := make(chan struct{})
-	go func() {
-		ifce.Read(make([]byte, 1<<16))
-		close(c)
-	}()
-
-	// make sure ifce.Close() happens after ifce.Read() blocks
-	time.Sleep(1 * time.Second)
-
-	ifce.Close()
-	ctx, cancel := context.WithTimeout(context.Background(), time.Second)
-	defer cancel()
-
-	select {
-	case <-c:
-		t.Log("Pending Read unblocked")
-	case <-ctx.Done():
-		t.Fatal("Timeouted, pending read blocked")
-	}
-}