replace memory registry

registry/memory/watcher_test.go

@@ -0,0 +1,30 @@
+package memory
+
+import (
+	"testing"
+
+	"github.com/micro/go-micro/registry"
+)
+
+func TestWatcher(t *testing.T) {
+	w := &Watcher{
+		id:   "test",
+		res:  make(chan *registry.Result),
+		exit: make(chan bool),
+	}
+
+	go func() {
+		w.res <- &registry.Result{}
+	}()
+
+	_, err := w.Next()
+	if err != nil {
+		t.Fatal("unexpected err", err)
+	}
+
+	w.Stop()
+
+	if _, err := w.Next(); err == nil {
+		t.Fatal("expected error on Next()")
+	}
+}