130 lines
2.8 KiB
Go
130 lines
2.8 KiB
Go
// Copyright 2019 the Kilo 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 mesh
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import (
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"net"
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"testing"
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)
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func TestNewAllocator(t *testing.T) {
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_, c1, err := net.ParseCIDR("10.1.0.0/16")
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if err != nil {
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t.Fatalf("failed to parse CIDR: %v", err)
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}
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a1 := newAllocator(*c1)
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_, c2, err := net.ParseCIDR("10.1.0.0/32")
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if err != nil {
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t.Fatalf("failed to parse CIDR: %v", err)
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}
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a2 := newAllocator(*c2)
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_, c3, err := net.ParseCIDR("10.1.0.0/31")
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if err != nil {
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t.Fatalf("failed to parse CIDR: %v", err)
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}
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a3 := newAllocator(*c3)
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for _, tc := range []struct {
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name string
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a *allocator
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next string
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}{
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{
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name: "10.1.0.0/16 first",
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a: a1,
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next: "10.1.0.1/16",
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},
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{
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name: "10.1.0.0/16 second",
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a: a1,
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next: "10.1.0.2/16",
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},
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{
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name: "10.1.0.0/32",
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a: a2,
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next: "<nil>",
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},
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{
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name: "10.1.0.0/31 first",
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a: a3,
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next: "10.1.0.1/31",
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},
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{
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name: "10.1.0.0/31 second",
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a: a3,
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next: "<nil>",
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},
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} {
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next := tc.a.next()
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if next.String() != tc.next {
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t.Errorf("test case %q: expected %s, got %s", tc.name, tc.next, next.String())
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}
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}
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}
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func TestSortIPs(t *testing.T) {
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ip1 := oneAddressCIDR(net.ParseIP("10.0.0.1"))
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ip2 := oneAddressCIDR(net.ParseIP("10.0.0.2"))
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ip3 := oneAddressCIDR(net.ParseIP("192.168.0.1"))
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ip4 := oneAddressCIDR(net.ParseIP("2001::7"))
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ip5 := oneAddressCIDR(net.ParseIP("fd68:da49:09da:b27f::"))
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for _, tc := range []struct {
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name string
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ips []*net.IPNet
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out []*net.IPNet
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}{
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{
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name: "single",
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ips: []*net.IPNet{ip1},
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out: []*net.IPNet{ip1},
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},
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{
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name: "IPv4s",
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ips: []*net.IPNet{ip2, ip3, ip1},
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out: []*net.IPNet{ip1, ip2, ip3},
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},
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{
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name: "IPv4 and IPv6",
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ips: []*net.IPNet{ip4, ip1},
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out: []*net.IPNet{ip1, ip4},
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},
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{
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name: "IPv6s",
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ips: []*net.IPNet{ip5, ip4},
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out: []*net.IPNet{ip4, ip5},
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},
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{
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name: "all",
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ips: []*net.IPNet{ip3, ip4, ip2, ip5, ip1},
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out: []*net.IPNet{ip1, ip2, ip3, ip4, ip5},
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},
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} {
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sortIPs(tc.ips)
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equal := true
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if len(tc.ips) != len(tc.out) {
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equal = false
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} else {
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for i := range tc.ips {
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if !ipNetsEqual(tc.ips[i], tc.out[i]) {
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equal = false
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break
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}
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}
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}
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if !equal {
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t.Errorf("test case %q: expected %s, got %s", tc.name, tc.out, tc.ips)
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}
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}
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}
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