From a9000a375c55590a980852d634b85922a5684801 Mon Sep 17 00:00:00 2001
From: AllenZMC <zhongming.chang@daocloud.io>
Date: Thu, 21 Apr 2022 00:19:39 +0800
Subject: [PATCH] add ut for filter

Signed-off-by: AllenZMC <zhongming.chang@daocloud.io>
---
 pkg/descheduler/core/filter_test.go | 150 ++++++++++++++++++++++++++++
 1 file changed, 150 insertions(+)
 create mode 100644 pkg/descheduler/core/filter_test.go

diff --git a/pkg/descheduler/core/filter_test.go b/pkg/descheduler/core/filter_test.go
new file mode 100644
index 000000000..a99475688
--- /dev/null
+++ b/pkg/descheduler/core/filter_test.go
@@ -0,0 +1,150 @@
+package core
+
+import (
+	"encoding/json"
+	"testing"
+
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+
+	policyv1alpha1 "github.com/karmada-io/karmada/pkg/apis/policy/v1alpha1"
+	workv1alpha2 "github.com/karmada-io/karmada/pkg/apis/work/v1alpha2"
+	"github.com/karmada-io/karmada/pkg/util"
+)
+
+func TestValidateGVK(t *testing.T) {
+	tests := []struct {
+		name      string
+		reference *workv1alpha2.ObjectReference
+		expected  bool
+	}{
+		{
+			name: "supportedGVKs",
+			reference: &workv1alpha2.ObjectReference{
+				APIVersion: "apps/v1",
+				Kind:       "Deployment",
+			},
+			expected: true,
+		},
+		{
+			name: "unsupportedGVKs",
+			reference: &workv1alpha2.ObjectReference{
+				APIVersion: "v1",
+				Kind:       "Pod",
+			},
+			expected: false,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			res := validateGVK(tt.reference)
+			if res != tt.expected {
+				t.Errorf("validateGVK() = %v, want %v", res, tt.expected)
+			}
+		})
+	}
+}
+
+func TestValidatePlacement(t *testing.T) {
+	fakePlacement1 := policyv1alpha1.Placement{
+		ReplicaScheduling: &policyv1alpha1.ReplicaSchedulingStrategy{
+			ReplicaSchedulingType: policyv1alpha1.ReplicaSchedulingTypeDuplicated,
+		},
+	}
+	marshaledBytes1, _ := json.Marshal(fakePlacement1)
+	fakePlacement2 := policyv1alpha1.Placement{
+		ReplicaScheduling: &policyv1alpha1.ReplicaSchedulingStrategy{
+			ReplicaSchedulingType:     policyv1alpha1.ReplicaSchedulingTypeDivided,
+			ReplicaDivisionPreference: policyv1alpha1.ReplicaDivisionPreferenceAggregated,
+		},
+	}
+	marshaledBytes2, _ := json.Marshal(fakePlacement2)
+	fakePlacement3 := policyv1alpha1.Placement{
+		ReplicaScheduling: &policyv1alpha1.ReplicaSchedulingStrategy{
+			ReplicaSchedulingType:     policyv1alpha1.ReplicaSchedulingTypeDivided,
+			ReplicaDivisionPreference: policyv1alpha1.ReplicaDivisionPreferenceWeighted,
+			WeightPreference:          &policyv1alpha1.ClusterPreferences{},
+		},
+	}
+	marshaledBytes3, _ := json.Marshal(fakePlacement3)
+	fakePlacement4 := policyv1alpha1.Placement{
+		ReplicaScheduling: &policyv1alpha1.ReplicaSchedulingStrategy{
+			ReplicaSchedulingType:     policyv1alpha1.ReplicaSchedulingTypeDivided,
+			ReplicaDivisionPreference: policyv1alpha1.ReplicaDivisionPreferenceWeighted,
+			WeightPreference: &policyv1alpha1.ClusterPreferences{
+				DynamicWeight: policyv1alpha1.DynamicWeightByAvailableReplicas,
+			},
+		},
+	}
+	marshaledBytes4, _ := json.Marshal(fakePlacement4)
+
+	tests := []struct {
+		name     string
+		binding  *workv1alpha2.ResourceBinding
+		expected bool
+	}{
+		{
+			name: "no policyPlacementAnnotation",
+			binding: &workv1alpha2.ResourceBinding{
+				ObjectMeta: metav1.ObjectMeta{
+					Name:      "foo",
+					Namespace: "bar",
+				},
+			},
+			expected: false,
+		},
+		{
+			name: "propagationPolicy schedules replicas as non-dynamic",
+			binding: &workv1alpha2.ResourceBinding{
+				ObjectMeta: metav1.ObjectMeta{
+					Name:        "foo",
+					Namespace:   "bar",
+					Annotations: map[string]string{util.PolicyPlacementAnnotation: string(marshaledBytes1)},
+				},
+			},
+			expected: false,
+		},
+		{
+			name: "propagationPolicy schedules replicas as dynamic: ReplicaDivisionPreference is Aggregated",
+			binding: &workv1alpha2.ResourceBinding{
+				ObjectMeta: metav1.ObjectMeta{
+					Name:        "foo",
+					Namespace:   "bar",
+					Annotations: map[string]string{util.PolicyPlacementAnnotation: string(marshaledBytes2)},
+				},
+			},
+			expected: true,
+		},
+		{
+			name: "propagationPolicy schedules replicas as dynamic: DynamicWeight is null",
+			binding: &workv1alpha2.ResourceBinding{
+				ObjectMeta: metav1.ObjectMeta{
+					Name:        "foo",
+					Namespace:   "bar",
+					Annotations: map[string]string{util.PolicyPlacementAnnotation: string(marshaledBytes3)},
+				},
+			},
+			expected: false,
+		},
+		{
+			name: "propagationPolicy schedules replicas as dynamic: DynamicWeight is not null",
+			binding: &workv1alpha2.ResourceBinding{
+				ObjectMeta: metav1.ObjectMeta{
+					Name:        "foo",
+					Namespace:   "bar",
+					Annotations: map[string]string{util.PolicyPlacementAnnotation: string(marshaledBytes4)},
+				},
+			},
+			expected: true,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			res := validatePlacement(tt.binding)
+			if res != tt.expected {
+				t.Errorf("validatePlacement() = %v, want %v", res, tt.expected)
+			}
+		})
+	}
+}