add ut for spreadconstraint

Signed-off-by: AllenZMC <zhongming.chang@daocloud.io>

pkg/scheduler/core/spreadconstraint/util_test.go

@@ -0,0 +1,121 @@
+package spreadconstraint
+
+import (
+	"reflect"
+	"testing"
+
+	policyv1alpha1 "github.com/karmada-io/karmada/pkg/apis/policy/v1alpha1"
+)
+
+func TestIsSpreadConstraintExisted(t *testing.T) {
+	type args struct {
+		spreadConstraints []policyv1alpha1.SpreadConstraint
+		field             policyv1alpha1.SpreadFieldValue
+	}
+	tests := []struct {
+		name string
+		args args
+		want bool
+	}{
+		{
+			name: "the specific field is existed in the spread constraints",
+			args: args{
+				spreadConstraints: []policyv1alpha1.SpreadConstraint{
+					{
+						SpreadByField: policyv1alpha1.SpreadByFieldCluster,
+					},
+					{
+						SpreadByField: policyv1alpha1.SpreadByFieldZone,
+					},
+				},
+				field: policyv1alpha1.SpreadByFieldCluster,
+			},
+			want: true,
+		},
+		{
+			name: "the specific field is not existed in the spread constraints",
+			args: args{
+				spreadConstraints: []policyv1alpha1.SpreadConstraint{
+					{
+						SpreadByField: policyv1alpha1.SpreadByFieldRegion,
+					},
+					{
+						SpreadByField: policyv1alpha1.SpreadByFieldZone,
+					},
+				},
+				field: policyv1alpha1.SpreadByFieldCluster,
+			},
+			want: false,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if got := IsSpreadConstraintExisted(tt.args.spreadConstraints, tt.args.field); got != tt.want {
+				t.Errorf("IsSpreadConstraintExisted() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}
+
+func Test_sortClusters(t *testing.T) {
+	tests := []struct {
+		name  string
+		infos []ClusterDetailInfo
+		want  []ClusterDetailInfo
+	}{
+		{
+			name: "different scores",
+			infos: []ClusterDetailInfo{
+				{
+					Name:  "b",
+					Score: 2,
+				},
+				{
+					Name:  "a",
+					Score: 1,
+				},
+			},
+			want: []ClusterDetailInfo{
+				{
+					Name:  "b",
+					Score: 2,
+				},
+				{
+					Name:  "a",
+					Score: 1,
+				},
+			},
+		},
+		{
+			name: "same score",
+			infos: []ClusterDetailInfo{
+				{
+					Name:  "b",
+					Score: 1,
+				},
+				{
+					Name:  "a",
+					Score: 1,
+				},
+			},
+			want: []ClusterDetailInfo{
+				{
+					Name:  "a",
+					Score: 1,
+				},
+				{
+					Name:  "b",
+					Score: 1,
+				},
+			},
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			sortClusters(tt.infos)
+			if !reflect.DeepEqual(tt.infos, tt.want) {
+				t.Errorf("sortClusters() = %v, want %v", tt.infos, tt.want)
+			}
+		})
+	}
+}