rename all remaining packages to internal/ (#12418)

This is to ensure that there are no projects
that try to import `minio/minio/pkg` into
their own repo. Any such common packages should
go to `https://github.com/minio/pkg`

internal/rest/client_test.go

@@ -0,0 +1,69 @@
+// Copyright (c) 2015-2021 MinIO, Inc.
+//
+// This file is part of MinIO Object Storage stack
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+package rest
+
+import (
+	"errors"
+	"net"
+	"net/url"
+	"testing"
+)
+
+func TestNetworkError_Unwrap(t *testing.T) {
+	tests := []struct {
+		name   string
+		err    error
+		target interface{}
+		want   bool
+	}{
+		{
+			name:   "url.Error",
+			err:    &url.Error{Op: "PUT", URL: "http://localhost/1234", Err: restError("remote server offline")},
+			target: &url.Error{},
+			want:   true,
+		},
+		{
+			name: "net.Error",
+			err:  &url.Error{Op: "PUT", URL: "http://localhost/1234", Err: restError("remote server offline")},
+			want: true,
+		},
+		{
+			name: "net.Error-unmatched",
+			err:  errors.New("something"),
+			want: false,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			// Wrap error
+			n := &NetworkError{
+				Err: tt.err,
+			}
+			if tt.target == nil {
+				var netErrInterface net.Error
+				if errors.As(n, &netErrInterface) != tt.want {
+					t.Errorf("errors.As(n, &tt.target) != tt.want, n: %#v, target: %#v, want:%v, got: %v", n, tt.target, tt.want, !tt.want)
+				}
+			} else {
+				if errors.As(n, &tt.target) != tt.want {
+					t.Errorf("errors.As(n, &tt.target) != tt.want, n: %#v, target: %#v, want:%v, got: %v", n, tt.target, tt.want, !tt.want)
+				}
+			}
+		})
+	}
+}