mirror of
https://github.com/k3s-io/kubernetes.git
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clear pkg/proxy/port.go port_test.go file
This commit is contained in:
jornshen
parent
d8d6a0223b
commit
00e26e9785
@ -5,7 +5,6 @@ go_library(
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srcs = [
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"endpoints.go",
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"network.go",
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"port.go",
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"utils.go",
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],
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importpath = "k8s.io/kubernetes/pkg/proxy/util",
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@ -27,7 +26,6 @@ go_test(
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name = "go_default_test",
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srcs = [
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"endpoints_test.go",
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"port_test.go",
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"utils_test.go",
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],
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embed = [":go_default_library"],
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@ -36,6 +34,7 @@ go_test(
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"//staging/src/k8s.io/api/core/v1:go_default_library",
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"//staging/src/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library",
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"//staging/src/k8s.io/apimachinery/pkg/util/sets:go_default_library",
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"//vendor/k8s.io/utils/net:go_default_library",
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],
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)
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@ -1,67 +0,0 @@
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/*
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Copyright 2017 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 util
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import (
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"fmt"
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"net"
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"strconv"
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"k8s.io/klog/v2"
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)
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// LocalPort describes a port on specific IP address and protocol
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type LocalPort struct {
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// Description is the identity message of a given local port.
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Description string
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// IP is the IP address part of a given local port.
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// If this string is empty, the port binds to all local IP addresses.
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IP string
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// Port is the port part of a given local port.
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Port int
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// Protocol is the protocol part of a given local port.
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// The value is assumed to be lower-case. For example, "udp" not "UDP", "tcp" not "TCP".
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Protocol string
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}
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func (lp *LocalPort) String() string {
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ipPort := net.JoinHostPort(lp.IP, strconv.Itoa(lp.Port))
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return fmt.Sprintf("%q (%s/%s)", lp.Description, ipPort, lp.Protocol)
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}
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// Closeable is an interface around closing a port.
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type Closeable interface {
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Close() error
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}
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// PortOpener is an interface around port opening/closing.
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// Abstracted out for testing.
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type PortOpener interface {
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OpenLocalPort(lp *LocalPort, isIPv6 bool) (Closeable, error)
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}
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// RevertPorts is closing ports in replacementPortsMap but not in originalPortsMap. In other words, it only
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// closes the ports opened in this sync.
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func RevertPorts(replacementPortsMap, originalPortsMap map[LocalPort]Closeable) {
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for k, v := range replacementPortsMap {
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// Only close newly opened local ports - leave ones that were open before this update
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if originalPortsMap[k] == nil {
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klog.V(2).Infof("Closing local port %s", k.String())
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v.Close()
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}
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}
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}
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@ -1,145 +0,0 @@
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/*
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Copyright 2017 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 util
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import "testing"
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type fakeClosable struct {
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closed bool
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}
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func (c *fakeClosable) Close() error {
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c.closed = true
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return nil
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}
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func TestLocalPortString(t *testing.T) {
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testCases := []struct {
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description string
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ip string
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port int
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protocol string
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expectedStr string
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}{
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{"IPv4 UDP", "1.2.3.4", 9999, "udp", "\"IPv4 UDP\" (1.2.3.4:9999/udp)"},
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{"IPv4 TCP", "5.6.7.8", 1053, "tcp", "\"IPv4 TCP\" (5.6.7.8:1053/tcp)"},
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{"IPv6 TCP", "2001:db8::1", 80, "tcp", "\"IPv6 TCP\" ([2001:db8::1]:80/tcp)"},
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{"IPv4 SCTP", "9.10.11.12", 7777, "sctp", "\"IPv4 SCTP\" (9.10.11.12:7777/sctp)"},
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{"IPv6 SCTP", "2001:db8::2", 80, "sctp", "\"IPv6 SCTP\" ([2001:db8::2]:80/sctp)"},
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}
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for _, tc := range testCases {
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lp := &LocalPort{
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Description: tc.description,
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IP: tc.ip,
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Port: tc.port,
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Protocol: tc.protocol,
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}
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str := lp.String()
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if str != tc.expectedStr {
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t.Errorf("Unexpected output for %s, expected: %s, got: %s", tc.description, tc.expectedStr, str)
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}
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}
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}
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func TestRevertPorts(t *testing.T) {
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testCases := []struct {
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replacementPorts []LocalPort
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existingPorts []LocalPort
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expectToBeClose []bool
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}{
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{
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replacementPorts: []LocalPort{
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{Port: 5001},
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{Port: 5002},
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{Port: 5003},
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},
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existingPorts: []LocalPort{},
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expectToBeClose: []bool{true, true, true},
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},
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{
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replacementPorts: []LocalPort{},
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existingPorts: []LocalPort{
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{Port: 5001},
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{Port: 5002},
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{Port: 5003},
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},
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expectToBeClose: []bool{},
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},
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{
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replacementPorts: []LocalPort{
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{Port: 5001},
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{Port: 5002},
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{Port: 5003},
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},
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existingPorts: []LocalPort{
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{Port: 5001},
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{Port: 5002},
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{Port: 5003},
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},
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expectToBeClose: []bool{false, false, false},
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},
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{
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replacementPorts: []LocalPort{
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{Port: 5001},
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{Port: 5002},
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{Port: 5003},
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},
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existingPorts: []LocalPort{
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{Port: 5001},
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{Port: 5003},
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},
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expectToBeClose: []bool{false, true, false},
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},
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{
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replacementPorts: []LocalPort{
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{Port: 5001},
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{Port: 5002},
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{Port: 5003},
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},
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existingPorts: []LocalPort{
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{Port: 5001},
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{Port: 5002},
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{Port: 5003},
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{Port: 5004},
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},
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expectToBeClose: []bool{false, false, false},
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},
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}
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for i, tc := range testCases {
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replacementPortsMap := make(map[LocalPort]Closeable)
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for _, lp := range tc.replacementPorts {
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replacementPortsMap[lp] = &fakeClosable{}
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}
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existingPortsMap := make(map[LocalPort]Closeable)
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for _, lp := range tc.existingPorts {
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existingPortsMap[lp] = &fakeClosable{}
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}
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RevertPorts(replacementPortsMap, existingPortsMap)
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for j, expectation := range tc.expectToBeClose {
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if replacementPortsMap[tc.replacementPorts[j]].(*fakeClosable).closed != expectation {
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t.Errorf("Expect replacement localport %v to be %v in test case %v", tc.replacementPorts[j], expectation, i)
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}
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}
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for _, lp := range tc.existingPorts {
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if existingPortsMap[lp].(*fakeClosable).closed == true {
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t.Errorf("Expect existing localport %v to be false in test case %v", lp, i)
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}
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}
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}
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}
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@ -482,3 +482,15 @@ func WriteBytesLine(buf *bytes.Buffer, bytes []byte) {
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buf.Write(bytes)
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buf.WriteByte('\n')
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}
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// RevertPorts is closing ports in replacementPortsMap but not in originalPortsMap. In other words, it only
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// closes the ports opened in this sync.
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func RevertPorts(replacementPortsMap, originalPortsMap map[utilnet.LocalPort]utilnet.Closeable) {
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for k, v := range replacementPortsMap {
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// Only close newly opened local ports - leave ones that were open before this update
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if originalPortsMap[k] == nil {
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klog.V(2).Infof("Closing local port %s", k.String())
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v.Close()
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}
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}
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}
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@ -29,6 +29,7 @@ import (
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/util/sets"
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fake "k8s.io/kubernetes/pkg/proxy/util/testing"
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utilnet "k8s.io/utils/net"
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)
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func TestValidateWorks(t *testing.T) {
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@ -1048,7 +1049,103 @@ func TestGetClusterIPByFamily(t *testing.T) {
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}
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})
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}
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}
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type fakeClosable struct {
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closed bool
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}
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func (c *fakeClosable) Close() error {
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c.closed = true
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return nil
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}
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func TestRevertPorts(t *testing.T) {
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testCases := []struct {
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replacementPorts []utilnet.LocalPort
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existingPorts []utilnet.LocalPort
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expectToBeClose []bool
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}{
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{
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replacementPorts: []utilnet.LocalPort{
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{Port: 5001},
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{Port: 5002},
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{Port: 5003},
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},
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existingPorts: []utilnet.LocalPort{},
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expectToBeClose: []bool{true, true, true},
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},
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{
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replacementPorts: []utilnet.LocalPort{},
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existingPorts: []utilnet.LocalPort{
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{Port: 5001},
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{Port: 5002},
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{Port: 5003},
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},
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expectToBeClose: []bool{},
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},
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{
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replacementPorts: []utilnet.LocalPort{
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{Port: 5001},
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{Port: 5002},
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{Port: 5003},
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},
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existingPorts: []utilnet.LocalPort{
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{Port: 5001},
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{Port: 5002},
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{Port: 5003},
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},
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expectToBeClose: []bool{false, false, false},
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},
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{
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replacementPorts: []utilnet.LocalPort{
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{Port: 5001},
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{Port: 5002},
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{Port: 5003},
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},
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existingPorts: []utilnet.LocalPort{
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{Port: 5001},
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{Port: 5003},
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},
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expectToBeClose: []bool{false, true, false},
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},
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{
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replacementPorts: []utilnet.LocalPort{
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{Port: 5001},
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{Port: 5002},
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{Port: 5003},
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},
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existingPorts: []utilnet.LocalPort{
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{Port: 5001},
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{Port: 5002},
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{Port: 5003},
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{Port: 5004},
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},
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expectToBeClose: []bool{false, false, false},
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},
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}
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for i, tc := range testCases {
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replacementPortsMap := make(map[utilnet.LocalPort]utilnet.Closeable)
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for _, lp := range tc.replacementPorts {
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replacementPortsMap[lp] = &fakeClosable{}
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}
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existingPortsMap := make(map[utilnet.LocalPort]utilnet.Closeable)
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for _, lp := range tc.existingPorts {
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existingPortsMap[lp] = &fakeClosable{}
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}
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RevertPorts(replacementPortsMap, existingPortsMap)
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for j, expectation := range tc.expectToBeClose {
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if replacementPortsMap[tc.replacementPorts[j]].(*fakeClosable).closed != expectation {
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t.Errorf("Expect replacement localport %v to be %v in test case %v", tc.replacementPorts[j], expectation, i)
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}
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}
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for _, lp := range tc.existingPorts {
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if existingPortsMap[lp].(*fakeClosable).closed == true {
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t.Errorf("Expect existing localport %v to be false in test case %v", lp, i)
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}
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}
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}
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}
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func TestWriteLine(t *testing.T) {
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