Roll back pkg client code for Velero server

Signed-off-by: danfengl <danfengl@vmware.com>

test/e2e/pkg/client/config_test.go

@@ -0,0 +1,34 @@
+/*
+Copyright 2021 the Velero contributors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package client
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestVeleroConfig(t *testing.T) {
+	c := VeleroConfig{
+		"namespace": "foo",
+		"features":  "feature1,feature2",
+	}
+
+	assert.Equal(t, "foo", c.Namespace())
+	assert.Equal(t, []string{"feature1", "feature2"}, c.Features())
+	assert.Equal(t, true, c.Colorized())
+}