istio

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// Copyright Istio Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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//     http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package serviceentry
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import (
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	"reflect"
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	"testing"
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	"k8s.io/apimachinery/pkg/types"
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	networking "istio.io/api/networking/v1alpha3"
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	"istio.io/istio/pkg/config"
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	"istio.io/istio/pkg/config/schema/gvk"
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)
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func TestGetWorkloadServiceEntries(t *testing.T) {
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	se1 := config.Config{
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		Meta: config.Meta{GroupVersionKind: gvk.ServiceEntry, Namespace: "default", Name: "se-1"},
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		Spec: &networking.ServiceEntry{
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			Hosts: []string{"*.google.com"},
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			Ports: []*networking.ServicePort{
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				{Number: 80, Name: "http-number", Protocol: "http"},
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				{Number: 8080, Name: "http2-number", Protocol: "http2"},
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			},
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			WorkloadSelector: &networking.WorkloadSelector{
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				Labels: map[string]string{"app": "foo"},
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			},
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		},
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	}
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	se2 := config.Config{
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		Meta: config.Meta{GroupVersionKind: gvk.ServiceEntry, Namespace: "default", Name: "se-2"},
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		Spec: &networking.ServiceEntry{
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			Hosts: []string{"*.google.com"},
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			Ports: []*networking.ServicePort{
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				{Number: 80, Name: "http-number", Protocol: "http"},
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				{Number: 8080, Name: "http2-number", Protocol: "http2"},
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			},
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			WorkloadSelector: &networking.WorkloadSelector{
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				Labels: map[string]string{"app": "bar"},
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			},
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		},
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	}
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	se3 := config.Config{
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		Meta: config.Meta{GroupVersionKind: gvk.ServiceEntry, Namespace: "default", Name: "se-3"},
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		Spec: &networking.ServiceEntry{
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			Hosts: []string{"www.wikipedia.org"},
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			Ports: []*networking.ServicePort{
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				{Number: 80, Name: "http-number", Protocol: "http"},
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				{Number: 8080, Name: "http2-number", Protocol: "http2"},
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			},
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			WorkloadSelector: &networking.WorkloadSelector{
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				Labels: map[string]string{"app": "foo"},
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			},
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		},
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	}
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	ses := []config.Config{se1, se2, se3}
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	wle := &networking.WorkloadEntry{
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		Address: "2.3.4.5",
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		Labels: map[string]string{
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			"app":     "foo",
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			"version": "v1",
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		},
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		Ports: map[string]uint32{
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			"http-number":  8081,
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			"http2-number": 8088,
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		},
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	}
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	expected := map[types.NamespacedName]*config.Config{
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		{Namespace: "default", Name: "se-1"}: &se1,
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		{Namespace: "default", Name: "se-3"}: &se3,
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	}
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	got := getWorkloadServiceEntries(ses, wle)
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	if !reflect.DeepEqual(got, expected) {
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		t.Errorf("recv unexpected se: %v", got)
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	}
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}
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func TestCompareServiceEntries(t *testing.T) {
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	oldSes := map[types.NamespacedName]*config.Config{
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		{Namespace: "default", Name: "se-1"}: {},
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		{Namespace: "default", Name: "se-2"}: {},
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		{Namespace: "default", Name: "se-3"}: {},
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	}
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	currSes := map[types.NamespacedName]*config.Config{
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		{Namespace: "default", Name: "se-2"}: {},
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		{Namespace: "default", Name: "se-4"}: {},
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		{Namespace: "default", Name: "se-5"}: {},
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	}
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	expectedUnselected := map[types.NamespacedName]*config.Config{
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		{Namespace: "default", Name: "se-1"}: {},
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		{Namespace: "default", Name: "se-3"}: {},
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	}
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	unSelected := difference(oldSes, currSes)
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	if len(unSelected) != len(expectedUnselected) {
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		t.Errorf("got unexpected unSelected ses %v", unSelected)
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	}
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	for _, se := range unSelected {
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		if _, ok := expectedUnselected[se]; !ok {
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			t.Errorf("got unexpected unSelected se %v", se)
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		}
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	}
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}
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