Scaffolding e2e testing (#56)

* Implementing generic e2e features

* Adding changes upon e2e benchmarking

e2e/utils_test.go

@@ -0,0 +1,59 @@
+//+build e2e
+
+/*
+Copyright 2020 Clastix Labs.
+
+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 e2e
+
+import (
+	"context"
+	"time"
+
+	. "github.com/onsi/gomega"
+	corev1 "k8s.io/api/core/v1"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/types"
+
+	"github.com/clastix/capsule/api/v1alpha1"
+)
+
+const (
+	defaultTimeoutInterval = 10 * time.Second
+	defaultPollInterval    = time.Second
+)
+
+func NewNamespace(name string) *corev1.Namespace {
+	return &corev1.Namespace{
+		ObjectMeta: metav1.ObjectMeta{
+			Name: name,
+		},
+	}
+}
+
+func NamespaceCreationShouldSucceed(ns *corev1.Namespace, t *v1alpha1.Tenant) {
+	cs := ownerClient(t)
+	Eventually(func() (err error) {
+		_, err = cs.CoreV1().Namespaces().Create(context.TODO(), ns, metav1.CreateOptions{})
+		return
+	}, defaultTimeoutInterval, defaultPollInterval).Should(Succeed())
+}
+
+func NamespaceShouldBeManagedByTenant(ns *corev1.Namespace, t *v1alpha1.Tenant) {
+	Eventually(func() v1alpha1.NamespaceList {
+		Expect(k8sClient.Get(context.TODO(), types.NamespacedName{Name: t.GetName()}, t)).Should(Succeed())
+		return t.Status.Namespaces
+	}, defaultTimeoutInterval, defaultPollInterval).Should(ContainElement(ns.GetName()))
+}