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pkg/addr: add tests for address parsing functions
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,143 @@ | ||
| // Copyright 2023 SCION Association | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| package addr_test | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "net/netip" | ||
| "testing" | ||
|
|
||
| "github.com/stretchr/testify/assert" | ||
| "github.com/stretchr/testify/require" | ||
|
|
||
| "github.com/scionproto/scion/pkg/addr" | ||
| ) | ||
|
|
||
| func ExampleHost() { | ||
| hs := []addr.Host{ | ||
| {}, | ||
| addr.HostIP(netip.MustParseAddr("::1")), | ||
| addr.HostIP(netip.AddrFrom4([4]byte{198, 51, 100, 1})), | ||
| addr.HostSVC(addr.SvcCS), | ||
| } | ||
| for _, h := range hs { | ||
| fmt.Printf("h: %q, h.Type(): %q", h, h.Type()) | ||
| switch h.Type() { | ||
| case addr.HostTypeIP: | ||
| fmt.Printf(", h.IP().Is4(): %v", h.IP().Is4()) | ||
| case addr.HostTypeSVC: | ||
| fmt.Printf(", h.SVC().IsMulticast(): %v", h.SVC().IsMulticast()) | ||
| default: | ||
| fmt.Printf(", h == addr.Host{}: %v", h == addr.Host{}) | ||
| } | ||
| fmt.Println() | ||
| } | ||
|
|
||
| // Use Host as map key: | ||
| stuff := make(map[addr.Host]struct{}) | ||
| for _, h := range hs { | ||
| stuff[h] = struct{}{} | ||
| } | ||
| _, hasSvcCS := stuff[addr.HostSVC(addr.SvcCS)] | ||
| _, hasSvcDS := stuff[addr.HostSVC(addr.SvcDS)] | ||
| fmt.Printf("has SvcCS: %v, has SvcDS: %v", hasSvcCS, hasSvcDS) | ||
|
|
||
| // Output: | ||
| // h: "<None>", h.Type(): "None", h == addr.Host{}: true | ||
| // h: "::1", h.Type(): "IP", h.IP().Is4(): false | ||
| // h: "198.51.100.1", h.Type(): "IP", h.IP().Is4(): true | ||
| // h: "CS A (0x0002)", h.Type(): "SVC", h.SVC().IsMulticast(): false | ||
| // has SvcCS: true, has SvcDS: false | ||
| } | ||
|
|
||
| func TestParseHost(t *testing.T) { | ||
| invalid := []string{ | ||
| "", | ||
| "x", | ||
| "512.0.0.1", | ||
| "10.1234567", | ||
| "::ffff1", | ||
| "2001:0db8:85a3:0000:0000:8a2e:0370:7334:1", // too long | ||
| " ::1", | ||
| "::1 ", | ||
| "localhost", | ||
| "CS_X", // almost a service addr | ||
| } | ||
| for _, s := range invalid { | ||
| t.Run(s, func(t *testing.T) { | ||
| _, err := addr.ParseHost(s) | ||
| assert.Error(t, err) | ||
| }) | ||
| } | ||
|
|
||
| ipv6 := []string{ | ||
| "::", | ||
| "::1", | ||
| "::ff02:1", | ||
| "2001:0db8:85a3:0000:0000:8a2e:0370:7334", | ||
| "fe80::1ff:fe23:4567:890a%eth2", | ||
| "::ffff:192.0.2.128", | ||
| "ff00::", | ||
| "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff", | ||
| } | ||
| for _, s := range ipv6 { | ||
| t.Run(s, func(t *testing.T) { | ||
| h, err := addr.ParseHost(s) | ||
| require.NoError(t, err) | ||
| require.Equal(t, addr.HostTypeIP, h.Type()) | ||
| assert.True(t, h.IP().Is6()) | ||
| assert.Equal(t, netip.MustParseAddr(s), h.IP()) | ||
| }) | ||
| } | ||
|
|
||
| ipv4 := []string{ | ||
| "0.0.0.0", | ||
| "127.0.0.1", | ||
| "198.51.100.0", | ||
| "198.51.100.1", | ||
| "198.51.100.254", | ||
| "198.51.100.255", | ||
| "255.255.255.255", | ||
| } | ||
| for _, s := range ipv4 { | ||
| t.Run(s, func(t *testing.T) { | ||
| h, err := addr.ParseHost(s) | ||
| require.NoError(t, err) | ||
| require.Equal(t, addr.HostTypeIP, h.Type()) | ||
| assert.True(t, h.IP().Is4()) | ||
| assert.Equal(t, netip.MustParseAddr(s), h.IP()) | ||
| }) | ||
| } | ||
|
|
||
| svcs := map[string]addr.SVC{ | ||
| "CS": addr.SvcCS, | ||
| "DS": addr.SvcDS, | ||
| "Wildcard": addr.SvcWildcard, | ||
| "CS_A": addr.SvcCS, | ||
| "DS_A": addr.SvcDS, | ||
| "Wildcard_A": addr.SvcWildcard, | ||
| "CS_M": addr.SvcCS.Multicast(), | ||
| "DS_M": addr.SvcDS.Multicast(), | ||
| "Wildcard_M": addr.SvcWildcard.Multicast(), | ||
| } | ||
| for src, svc := range svcs { | ||
| t.Run(src, func(t *testing.T) { | ||
| h, err := addr.ParseHost(src) | ||
| require.NoError(t, err) | ||
| require.Equal(t, addr.HostTypeSVC, h.Type()) | ||
| assert.Equal(t, svc, h.SVC()) | ||
| }) | ||
| } | ||
| } |
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