151 lines
4 KiB
Go
151 lines
4 KiB
Go
/*
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Copyright 2015 The Kubernetes Authors.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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*/
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package ratelimit
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import (
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"reflect"
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"sort"
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"testing"
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api "k8s.io/api/core/v1"
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networking "k8s.io/api/networking/v1beta1"
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meta_v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/util/intstr"
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"k8s.io/ingress-nginx/internal/ingress/annotations/parser"
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"k8s.io/ingress-nginx/internal/ingress/defaults"
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"k8s.io/ingress-nginx/internal/ingress/resolver"
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)
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func buildIngress() *networking.Ingress {
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defaultBackend := networking.IngressBackend{
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ServiceName: "default-backend",
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ServicePort: intstr.FromInt(80),
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}
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return &networking.Ingress{
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ObjectMeta: meta_v1.ObjectMeta{
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Name: "foo",
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Namespace: api.NamespaceDefault,
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},
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Spec: networking.IngressSpec{
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Backend: &networking.IngressBackend{
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ServiceName: "default-backend",
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ServicePort: intstr.FromInt(80),
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},
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Rules: []networking.IngressRule{
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{
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Host: "foo.bar.com",
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IngressRuleValue: networking.IngressRuleValue{
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HTTP: &networking.HTTPIngressRuleValue{
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Paths: []networking.HTTPIngressPath{
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{
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Path: "/foo",
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Backend: defaultBackend,
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},
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},
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},
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},
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},
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},
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},
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}
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}
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type mockBackend struct {
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resolver.Mock
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}
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func (m mockBackend) GetDefaultBackend() defaults.Backend {
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return defaults.Backend{
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LimitRateAfter: 0,
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LimitRate: 0,
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}
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}
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func TestWithoutAnnotations(t *testing.T) {
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ing := buildIngress()
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_, err := NewParser(mockBackend{}).Parse(ing)
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if err != nil {
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t.Error("unexpected error with ingress without annotations")
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}
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}
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func TestParseCIDRs(t *testing.T) {
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cidr, _ := parseCIDRs("invalid.com")
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if cidr != nil {
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t.Errorf("expected %v but got %v", nil, cidr)
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}
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expected := []string{"192.0.0.1", "192.0.1.0/24"}
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cidr, err := parseCIDRs("192.0.0.1, 192.0.1.0/24")
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if err != nil {
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t.Errorf("unexpected error %v", err)
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}
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sort.Strings(cidr)
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if !reflect.DeepEqual(expected, cidr) {
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t.Errorf("expected %v but got %v", expected, cidr)
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}
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}
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func TestRateLimiting(t *testing.T) {
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ing := buildIngress()
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data := map[string]string{}
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data[parser.GetAnnotationWithPrefix("limit-connections")] = "0"
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data[parser.GetAnnotationWithPrefix("limit-rps")] = "0"
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data[parser.GetAnnotationWithPrefix("limit-rpm")] = "0"
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ing.SetAnnotations(data)
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_, err := NewParser(mockBackend{}).Parse(ing)
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if err != nil {
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t.Errorf("unexpected error with invalid limits (0)")
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}
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data = map[string]string{}
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data[parser.GetAnnotationWithPrefix("limit-connections")] = "5"
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data[parser.GetAnnotationWithPrefix("limit-rps")] = "100"
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data[parser.GetAnnotationWithPrefix("limit-rpm")] = "10"
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data[parser.GetAnnotationWithPrefix("limit-rate-after")] = "100"
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data[parser.GetAnnotationWithPrefix("limit-rate")] = "10"
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ing.SetAnnotations(data)
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i, err := NewParser(mockBackend{}).Parse(ing)
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if err != nil {
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t.Errorf("unexpected error: %v", err)
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}
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rateLimit, ok := i.(*Config)
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if !ok {
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t.Errorf("expected a RateLimit type")
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}
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if rateLimit.Connections.Limit != 5 {
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t.Errorf("expected 5 in limit by ip but %v was returend", rateLimit.Connections)
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}
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if rateLimit.RPS.Limit != 100 {
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t.Errorf("expected 100 in limit by rps but %v was returend", rateLimit.RPS)
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}
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if rateLimit.RPM.Limit != 10 {
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t.Errorf("expected 10 in limit by rpm but %v was returend", rateLimit.RPM)
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}
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if rateLimit.LimitRateAfter != 100 {
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t.Errorf("expected 100 in limit by limitrateafter but %v was returend", rateLimit.LimitRateAfter)
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}
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if rateLimit.LimitRate != 10 {
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t.Errorf("expected 10 in limit by limitrate but %v was returend", rateLimit.LimitRate)
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}
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}
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