UT cases for garbagecollector package

[thandayuthapani]

For #168
Added UT cases for garbagecollector package

[nikita15p]

func TestGarbageCollector_IsJobFinished(t *testing.T) {
namespace := "test"

testcases := []struct {
	Name        string
	Job         *v1alpha1.Job
	ExpectedVal bool
}{
	{
		Name: "Success Case",
		Job: &v1alpha1.Job{
			ObjectMeta: metav1.ObjectMeta{
				Name:      "job1",
				Namespace: namespace,
			},
			Status: v1alpha1.JobStatus{
				State: v1alpha1.JobState{
					Phase: v1alpha1.Completed,
				},
			},
		},
		ExpectedVal: true,
	},
	{
		Name: "Success Case",
		Job: &v1alpha1.Job{
			ObjectMeta: metav1.ObjectMeta{
				Name:      "job1",
				Namespace: namespace,
			},
			Status: v1alpha1.JobStatus{
				State: v1alpha1.JobState{
					Phase: v1alpha1.Running,
				},
			},
		},
		ExpectedVal: false,
	},
}

It is good to maintain different names of the test cases so as to know exactly which TC passed/failed.

[thandayuthapani]

@nikita15p Thanks for noting it down, Would have missed it while writing.

[TommyLike]

/lgtm
/approve