chore: import upstream snapshot with attribution

internal/util/test/test.go

@@ -0,0 +1,58 @@
+package test
+
+import (
+	"go-micro.dev/v6/registry"
+)
+
+var (
+	// Data is a set of mock registry data.
+	Data = map[string][]*registry.Service{
+		"foo": {
+			{
+				Name:    "foo",
+				Version: "1.0.0",
+				Nodes: []*registry.Node{
+					{
+						Id:      "foo-1.0.0-123",
+						Address: "localhost:9999",
+					},
+					{
+						Id:      "foo-1.0.0-321",
+						Address: "localhost:9999",
+					},
+				},
+			},
+			{
+				Name:    "foo",
+				Version: "1.0.1",
+				Nodes: []*registry.Node{
+					{
+						Id:      "foo-1.0.1-321",
+						Address: "localhost:6666",
+					},
+				},
+			},
+			{
+				Name:    "foo",
+				Version: "1.0.3",
+				Nodes: []*registry.Node{
+					{
+						Id:      "foo-1.0.3-345",
+						Address: "localhost:8888",
+					},
+				},
+			},
+		},
+	}
+)
+
+// EmptyChannel will empty out a error channel by checking if an error is
+// present, and if so return the error.
+func EmptyChannel(c chan error) error {
+	select {
+	case err := <-c:
+		return err
+	default:
+		return nil
+	}
+}