WIP: unit tests

Signed-off-by: Rashmi Gottipati <chowdary.grashmi@gmail.com>

pkg/finalizer/finalizer.go

@@ -21,8 +21,8 @@ import (
 	"sigs.k8s.io/controller-runtime/pkg/controller/controllerutil"
 )
 
-func NewFinalizers() (Finalizers, error) {
-	return finalizers(map[string]Finalizer{}), nil
+func NewFinalizers() Finalizers {
+	return finalizers(map[string]Finalizer{})
 }
 
 func (f finalizers) Register(key string, finalizer Finalizer) error {

pkg/finalizer/finalizer_test.go

@@ -0,0 +1,50 @@
+package finalizer
+
+import (
+	"context"
+	"testing"
+
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+	corev1 "k8s.io/api/core/v1"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"sigs.k8s.io/controller-runtime/pkg/client"
+	"sigs.k8s.io/controller-runtime/pkg/envtest/printer"
+)
+
+type mockFinalizer struct{}
+
+func (f mockFinalizer) Finalize(context.Context, client.Object) (needsUpdate bool, err error) {
+	return true, nil
+}
+func TestFinalizer(t *testing.T) {
+	RegisterFailHandler(Fail)
+	suiteName := "Finalizer Suite"
+	RunSpecsWithDefaultAndCustomReporters(t, suiteName, []Reporter{printer.NewlineReporter{}, printer.NewProwReporter(suiteName)})
+}
+
+var _ = Describe("TestFinalizer", func() {
+	Describe("Finalizer", func() {
+		It("should return no error", func() {
+			var err error
+			now := metav1.Now()
+			pod := &corev1.Pod{
+				ObjectMeta: metav1.ObjectMeta{
+					Finalizers:        []string{"finalizers.sigs.k8s.io/testfinalizer"},
+					DeletionTimestamp: &now,
+				},
+			}
+
+			finalizers := NewFinalizers()
+
+			f := mockFinalizer{}
+
+			err = finalizers.Register("finalizers.sigs.k8s.io/testfinalizer", f)
+			Expect(err).To(BeNil())
+
+			ret, err := finalizers.Finalize(context.TODO(), pod)
+			Expect(err).To(BeNil())
+			Expect(ret).To(BeTrue())
+		})
+	})
+})