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topics_test.go
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topics_test.go
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// SPDX-License-Identifier: MIT
// SPDX-FileCopyrightText: 2023 mochi-mqtt, mochi-co
// SPDX-FileContributor: mochi-co
package mqtt
import (
"fmt"
"testing"
"github.com/mochi-mqtt/server/v2/packets"
"github.com/stretchr/testify/require"
)
const (
testGroup = "testgroup"
otherGroup = "other"
)
func TestNewSharedSubscriptions(t *testing.T) {
s := NewSharedSubscriptions()
require.NotNil(t, s.internal)
}
func TestSharedSubscriptionsAdd(t *testing.T) {
s := NewSharedSubscriptions()
s.Add(testGroup, "cl1", packets.Subscription{Filter: "a/b/c"})
require.Contains(t, s.internal, testGroup)
require.Contains(t, s.internal[testGroup], "cl1")
}
func TestSharedSubscriptionsGet(t *testing.T) {
s := NewSharedSubscriptions()
s.Add(testGroup, "cl1", packets.Subscription{Qos: 2})
s.Add(testGroup, "cl2", packets.Subscription{Qos: 2})
require.Contains(t, s.internal, testGroup)
require.Contains(t, s.internal[testGroup], "cl1")
require.Contains(t, s.internal, testGroup)
require.Contains(t, s.internal[testGroup], "cl2")
sub, ok := s.Get(testGroup, "cl2")
require.Equal(t, true, ok)
require.Equal(t, byte(2), sub.Qos)
}
func TestSharedSubscriptionsGetAll(t *testing.T) {
s := NewSharedSubscriptions()
s.Add(testGroup, "cl1", packets.Subscription{Qos: 0})
s.Add(testGroup, "cl2", packets.Subscription{Qos: 1})
s.Add(otherGroup, "cl3", packets.Subscription{Qos: 2})
require.Contains(t, s.internal, testGroup)
require.Contains(t, s.internal[testGroup], "cl1")
require.Contains(t, s.internal, testGroup)
require.Contains(t, s.internal[testGroup], "cl2")
require.Contains(t, s.internal, otherGroup)
require.Contains(t, s.internal[otherGroup], "cl3")
subs := s.GetAll()
require.Len(t, subs, 2)
require.Len(t, subs[testGroup], 2)
require.Len(t, subs[otherGroup], 1)
}
func TestSharedSubscriptionsLen(t *testing.T) {
s := NewSharedSubscriptions()
s.Add(testGroup, "cl1", packets.Subscription{Qos: 0})
s.Add(testGroup, "cl2", packets.Subscription{Qos: 1})
s.Add(otherGroup, "cl2", packets.Subscription{Qos: 1})
require.Contains(t, s.internal, testGroup)
require.Contains(t, s.internal[testGroup], "cl1")
require.Contains(t, s.internal, testGroup)
require.Contains(t, s.internal[testGroup], "cl2")
require.Contains(t, s.internal, otherGroup)
require.Contains(t, s.internal[otherGroup], "cl2")
require.Equal(t, 3, s.Len())
require.Equal(t, 2, s.GroupLen())
}
func TestSharedSubscriptionsDelete(t *testing.T) {
s := NewSharedSubscriptions()
s.Add(testGroup, "cl1", packets.Subscription{Qos: 1})
s.Add(testGroup, "cl2", packets.Subscription{Qos: 2})
require.Contains(t, s.internal, testGroup)
require.Contains(t, s.internal[testGroup], "cl1")
require.Contains(t, s.internal, testGroup)
require.Contains(t, s.internal[testGroup], "cl2")
require.Equal(t, 2, s.Len())
s.Delete(testGroup, "cl1")
_, ok := s.Get(testGroup, "cl1")
require.False(t, ok)
require.Equal(t, 1, s.GroupLen())
require.Equal(t, 1, s.Len())
s.Delete(testGroup, "cl2")
_, ok = s.Get(testGroup, "cl2")
require.False(t, ok)
require.Equal(t, 0, s.GroupLen())
require.Equal(t, 0, s.Len())
}
func TestNewSubscriptions(t *testing.T) {
s := NewSubscriptions()
require.NotNil(t, s.internal)
}
func TestSubscriptionsAdd(t *testing.T) {
s := NewSubscriptions()
s.Add("cl1", packets.Subscription{})
require.Contains(t, s.internal, "cl1")
}
func TestSubscriptionsGet(t *testing.T) {
s := NewSubscriptions()
s.Add("cl1", packets.Subscription{Qos: 2})
s.Add("cl2", packets.Subscription{Qos: 2})
require.Contains(t, s.internal, "cl1")
require.Contains(t, s.internal, "cl2")
sub, ok := s.Get("cl1")
require.True(t, ok)
require.Equal(t, byte(2), sub.Qos)
}
func TestSubscriptionsGetAll(t *testing.T) {
s := NewSubscriptions()
s.Add("cl1", packets.Subscription{Qos: 0})
s.Add("cl2", packets.Subscription{Qos: 1})
s.Add("cl3", packets.Subscription{Qos: 2})
require.Contains(t, s.internal, "cl1")
require.Contains(t, s.internal, "cl2")
require.Contains(t, s.internal, "cl3")
subs := s.GetAll()
require.Len(t, subs, 3)
}
func TestSubscriptionsLen(t *testing.T) {
s := NewSubscriptions()
s.Add("cl1", packets.Subscription{Qos: 0})
s.Add("cl2", packets.Subscription{Qos: 1})
require.Contains(t, s.internal, "cl1")
require.Contains(t, s.internal, "cl2")
require.Equal(t, 2, s.Len())
}
func TestSubscriptionsDelete(t *testing.T) {
s := NewSubscriptions()
s.Add("cl1", packets.Subscription{Qos: 1})
require.Contains(t, s.internal, "cl1")
s.Delete("cl1")
_, ok := s.Get("cl1")
require.False(t, ok)
}
func TestNewTopicsIndex(t *testing.T) {
index := NewTopicsIndex()
require.NotNil(t, index)
require.NotNil(t, index.root)
}
func BenchmarkNewTopicsIndex(b *testing.B) {
for n := 0; n < b.N; n++ {
NewTopicsIndex()
}
}
func TestSubscribe(t *testing.T) {
tt := []struct {
desc string
client string
filter string
subscription packets.Subscription
wasNew bool
}{
{
desc: "subscribe",
client: "cl1",
subscription: packets.Subscription{Filter: "a/b/c", Qos: 2},
wasNew: true,
},
{
desc: "subscribe existed",
client: "cl1",
subscription: packets.Subscription{Filter: "a/b/c", Qos: 1},
wasNew: false,
},
{
desc: "subscribe case sensitive didnt exist",
client: "cl1",
subscription: packets.Subscription{Filter: "A/B/c", Qos: 1},
wasNew: true,
},
{
desc: "wildcard+ sub",
client: "cl1",
subscription: packets.Subscription{Filter: "d/+"},
wasNew: true,
},
{
desc: "wildcard# sub",
client: "cl1",
subscription: packets.Subscription{Filter: "d/e/#"},
wasNew: true,
},
}
index := NewTopicsIndex()
for _, tx := range tt {
t.Run(tx.desc, func(t *testing.T) {
require.Equal(t, tx.wasNew, index.Subscribe(tx.client, tx.subscription))
})
}
final := index.root.particles.get("a").particles.get("b").particles.get("c")
require.NotNil(t, final)
client, exists := final.subscriptions.Get("cl1")
require.True(t, exists)
require.Equal(t, byte(1), client.Qos)
}
func TestSubscribeShared(t *testing.T) {
index := NewTopicsIndex()
index.Subscribe("cl1", packets.Subscription{Filter: SharePrefix + "/tmp/a/b/c", Qos: 2})
final := index.root.particles.get("a").particles.get("b").particles.get("c")
require.NotNil(t, final)
client, exists := final.shared.Get("tmp", "cl1")
require.True(t, exists)
require.Equal(t, byte(2), client.Qos)
require.Equal(t, 0, final.subscriptions.Len())
require.Equal(t, 1, final.shared.Len())
}
func BenchmarkSubscribe(b *testing.B) {
index := NewTopicsIndex()
for n := 0; n < b.N; n++ {
index.Subscribe("client-1", packets.Subscription{Filter: "a/b/c"})
}
}
func BenchmarkSubscribeShared(b *testing.B) {
index := NewTopicsIndex()
for n := 0; n < b.N; n++ {
index.Subscribe("client-1", packets.Subscription{Filter: "$SHARE/tmp/a/b/c"})
}
}
func TestUnsubscribe(t *testing.T) {
index := NewTopicsIndex()
index.Subscribe("cl1", packets.Subscription{Filter: "a/b/c/d", Qos: 1})
client, exists := index.root.particles.get("a").particles.get("b").particles.get("c").particles.get("d").subscriptions.Get("cl1")
require.NotNil(t, client)
require.True(t, exists)
index.Subscribe("cl1", packets.Subscription{Filter: "a/b/+/d", Qos: 1})
client, exists = index.root.particles.get("a").particles.get("b").particles.get("+").particles.get("d").subscriptions.Get("cl1")
require.NotNil(t, client)
require.True(t, exists)
index.Subscribe("cl1", packets.Subscription{Filter: "d/e/f", Qos: 1})
client, exists = index.root.particles.get("d").particles.get("e").particles.get("f").subscriptions.Get("cl1")
require.NotNil(t, client)
require.True(t, exists)
index.Subscribe("cl2", packets.Subscription{Filter: "d/e/f", Qos: 1})
client, exists = index.root.particles.get("d").particles.get("e").particles.get("f").subscriptions.Get("cl2")
require.NotNil(t, client)
require.True(t, exists)
index.Subscribe("cl3", packets.Subscription{Filter: "#", Qos: 2})
client, exists = index.root.particles.get("#").subscriptions.Get("cl3")
require.NotNil(t, client)
require.True(t, exists)
ok := index.Unsubscribe("a/b/c/d", "cl1")
require.True(t, ok)
require.Nil(t, index.root.particles.get("a").particles.get("b").particles.get("c"))
client, exists = index.root.particles.get("a").particles.get("b").particles.get("+").particles.get("d").subscriptions.Get("cl1")
require.NotNil(t, client)
require.True(t, exists)
ok = index.Unsubscribe("d/e/f", "cl1")
require.True(t, ok)
require.Equal(t, 1, index.root.particles.get("d").particles.get("e").particles.get("f").subscriptions.Len())
client, exists = index.root.particles.get("d").particles.get("e").particles.get("f").subscriptions.Get("cl2")
require.NotNil(t, client)
require.True(t, exists)
ok = index.Unsubscribe("fdasfdas/dfsfads/sa", "nobody")
require.False(t, ok)
}
func TestUnsubscribeNoCascade(t *testing.T) {
index := NewTopicsIndex()
index.Subscribe("cl1", packets.Subscription{Filter: "a/b/c"})
index.Subscribe("cl1", packets.Subscription{Filter: "a/b/c/e/e"})
ok := index.Unsubscribe("a/b/c/e/e", "cl1")
require.True(t, ok)
require.Equal(t, 1, index.root.particles.len())
client, exists := index.root.particles.get("a").particles.get("b").particles.get("c").subscriptions.Get("cl1")
require.NotNil(t, client)
require.True(t, exists)
}
func TestUnsubscribeShared(t *testing.T) {
index := NewTopicsIndex()
index.Subscribe("cl1", packets.Subscription{Filter: "$SHARE/tmp/a/b/c", Qos: 2})
final := index.root.particles.get("a").particles.get("b").particles.get("c")
require.NotNil(t, final)
client, exists := final.shared.Get("tmp", "cl1")
require.True(t, exists)
require.Equal(t, byte(2), client.Qos)
require.True(t, index.Unsubscribe("$share/tmp/a/b/c", "cl1"))
_, exists = final.shared.Get("tmp", "cl1")
require.False(t, exists)
}
func BenchmarkUnsubscribe(b *testing.B) {
index := NewTopicsIndex()
for n := 0; n < b.N; n++ {
b.StopTimer()
index.Subscribe("cl1", packets.Subscription{Filter: "a/b/c"})
b.StartTimer()
index.Unsubscribe("a/b/c", "cl1")
}
}
func TestIndexSeek(t *testing.T) {
filter := "a/b/c/d/e/f"
index := NewTopicsIndex()
k1 := index.set(filter, 0)
require.Equal(t, "f", k1.key)
k1.subscriptions.Add("cl1", packets.Subscription{})
require.Equal(t, k1, index.seek(filter, 0))
require.Nil(t, index.seek("d/e/f", 0))
}
func TestIndexTrim(t *testing.T) {
index := NewTopicsIndex()
k1 := index.set("a/b/c", 0)
require.Equal(t, "c", k1.key)
k1.subscriptions.Add("cl1", packets.Subscription{})
k2 := index.set("a/b/c/d/e/f", 0)
require.Equal(t, "f", k2.key)
k2.subscriptions.Add("cl1", packets.Subscription{})
k3 := index.set("a/b", 0)
require.Equal(t, "b", k3.key)
k3.subscriptions.Add("cl1", packets.Subscription{})
index.trim(k2)
require.NotNil(t, index.root.particles.get("a").particles.get("b").particles.get("c"))
require.NotNil(t, index.root.particles.get("a").particles.get("b").particles.get("c").particles.get("d").particles.get("e").particles.get("f"))
require.NotNil(t, index.root.particles.get("a").particles.get("b"))
k2.subscriptions.Delete("cl1")
index.trim(k2)
require.Nil(t, index.root.particles.get("a").particles.get("b").particles.get("c").particles.get("d"))
require.NotNil(t, index.root.particles.get("a").particles.get("b").particles.get("c"))
k1.subscriptions.Delete("cl1")
k3.subscriptions.Delete("cl1")
index.trim(k2)
require.Nil(t, index.root.particles.get("a"))
}
func TestIndexSet(t *testing.T) {
index := NewTopicsIndex()
child := index.set("a/b/c", 0)
require.Equal(t, "c", child.key)
require.NotNil(t, index.root.particles.get("a").particles.get("b").particles.get("c"))
child = index.set("a/b/c/d/e", 0)
require.Equal(t, "e", child.key)
child = index.set("a/b/c/c/a", 0)
require.Equal(t, "a", child.key)
}
func TestIndexSetPrefixed(t *testing.T) {
index := NewTopicsIndex()
child := index.set("/c", 0)
require.Equal(t, "c", child.key)
require.NotNil(t, index.root.particles.get("").particles.get("c"))
}
func BenchmarkIndexSet(b *testing.B) {
index := NewTopicsIndex()
for n := 0; n < b.N; n++ {
index.set("a/b/c", 0)
}
}
func TestRetainMessage(t *testing.T) {
pk := packets.Packet{
FixedHeader: packets.FixedHeader{Retain: true},
TopicName: "a/b/c",
Payload: []byte("hello"),
}
index := NewTopicsIndex()
r := index.RetainMessage(pk)
require.Equal(t, int64(1), r)
pke, ok := index.Retained.Get(pk.TopicName)
require.True(t, ok)
require.Equal(t, pk, pke)
pk2 := packets.Packet{
FixedHeader: packets.FixedHeader{Retain: true},
TopicName: "a/b/d/f",
Payload: []byte("hello"),
}
r = index.RetainMessage(pk2)
require.Equal(t, int64(1), r)
// The same message already exists, but we're not doing a deep-copy check, so it's considered to be a new message.
r = index.RetainMessage(pk2)
require.Equal(t, int64(1), r)
// Clear existing retained
pk3 := packets.Packet{TopicName: "a/b/c", Payload: []byte{}}
r = index.RetainMessage(pk3)
require.Equal(t, int64(-1), r)
_, ok = index.Retained.Get(pk.TopicName)
require.False(t, ok)
// Clear no retained
r = index.RetainMessage(pk3)
require.Equal(t, int64(0), r)
}
func BenchmarkRetainMessage(b *testing.B) {
index := NewTopicsIndex()
for n := 0; n < b.N; n++ {
index.RetainMessage(packets.Packet{TopicName: "a/b/c/d"})
}
}
func TestIsolateParticle(t *testing.T) {
particle, hasNext := isolateParticle("path/to/my/mqtt", 0)
require.Equal(t, "path", particle)
require.Equal(t, true, hasNext)
particle, hasNext = isolateParticle("path/to/my/mqtt", 1)
require.Equal(t, "to", particle)
require.Equal(t, true, hasNext)
particle, hasNext = isolateParticle("path/to/my/mqtt", 2)
require.Equal(t, "my", particle)
require.Equal(t, true, hasNext)
particle, hasNext = isolateParticle("path/to/my/mqtt", 3)
require.Equal(t, "mqtt", particle)
require.Equal(t, false, hasNext)
particle, hasNext = isolateParticle("/path/", 0)
require.Equal(t, "", particle)
require.Equal(t, true, hasNext)
particle, hasNext = isolateParticle("/path/", 1)
require.Equal(t, "path", particle)
require.Equal(t, true, hasNext)
particle, hasNext = isolateParticle("/path/", 2)
require.Equal(t, "", particle)
require.Equal(t, false, hasNext)
particle, hasNext = isolateParticle("a/b/c/+/+", 3)
require.Equal(t, "+", particle)
require.Equal(t, true, hasNext)
particle, hasNext = isolateParticle("a/b/c/+/+", 4)
require.Equal(t, "+", particle)
require.Equal(t, false, hasNext)
}
func BenchmarkIsolateParticle(b *testing.B) {
for n := 0; n < b.N; n++ {
isolateParticle("path/to/my/mqtt", 3)
}
}
func TestScanSubscribers(t *testing.T) {
index := NewTopicsIndex()
index.Subscribe("cl1", packets.Subscription{Qos: 1, Filter: "a/b/c", Identifier: 22})
index.Subscribe("cl1", packets.Subscription{Qos: 1, Filter: "a/b/c/d/e/f"})
index.Subscribe("cl1", packets.Subscription{Qos: 2, Filter: "a/b/c/d/+/f"})
index.Subscribe("cl2", packets.Subscription{Qos: 0, Filter: "a/#"})
index.Subscribe("cl2", packets.Subscription{Qos: 1, Filter: "a/b/c"})
index.Subscribe("cl2", packets.Subscription{Qos: 2, Filter: "a/b/+", Identifier: 77})
index.Subscribe("cl2", packets.Subscription{Qos: 2, Filter: "d/e/f", Identifier: 7237})
index.Subscribe("cl2", packets.Subscription{Qos: 2, Filter: "$SYS/uptime", Identifier: 3})
index.Subscribe("cl3", packets.Subscription{Qos: 1, Filter: "+/b", Identifier: 234})
index.Subscribe("cl4", packets.Subscription{Qos: 0, Filter: "#", Identifier: 5})
index.Subscribe("cl2", packets.Subscription{Qos: 0, Filter: "$SYS/test", Identifier: 2})
subs := index.scanSubscribers("a/b/c", 0, nil, new(Subscribers))
require.Equal(t, 3, len(subs.Subscriptions))
require.Contains(t, subs.Subscriptions, "cl1")
require.Contains(t, subs.Subscriptions, "cl2")
require.Contains(t, subs.Subscriptions, "cl4")
require.Equal(t, byte(1), subs.Subscriptions["cl1"].Qos)
require.Equal(t, byte(2), subs.Subscriptions["cl2"].Qos)
require.Equal(t, byte(0), subs.Subscriptions["cl4"].Qos)
require.Equal(t, 22, subs.Subscriptions["cl1"].Identifiers["a/b/c"])
require.Equal(t, 0, subs.Subscriptions["cl2"].Identifiers["a/#"])
require.Equal(t, 77, subs.Subscriptions["cl2"].Identifiers["a/b/+"])
require.Equal(t, 0, subs.Subscriptions["cl2"].Identifiers["a/b/c"])
require.Equal(t, 5, subs.Subscriptions["cl4"].Identifiers["#"])
subs = index.scanSubscribers("d/e/f/g", 0, nil, new(Subscribers))
require.Equal(t, 1, len(subs.Subscriptions))
require.Contains(t, subs.Subscriptions, "cl4")
require.Equal(t, byte(0), subs.Subscriptions["cl4"].Qos)
require.Equal(t, 5, subs.Subscriptions["cl4"].Identifiers["#"])
subs = index.scanSubscribers("", 0, nil, new(Subscribers))
require.Equal(t, 0, len(subs.Subscriptions))
}
func TestScanSubscribersTopicInheritanceBug(t *testing.T) {
index := NewTopicsIndex()
index.Subscribe("cl1", packets.Subscription{Qos: 0, Filter: "a/b/c"})
index.Subscribe("cl2", packets.Subscription{Qos: 0, Filter: "a/b"})
subs := index.scanSubscribers("a/b/c", 0, nil, new(Subscribers))
require.Equal(t, 1, len(subs.Subscriptions))
}
func TestScanSubscribersShared(t *testing.T) {
index := NewTopicsIndex()
index.Subscribe("cl1", packets.Subscription{Qos: 1, Filter: SharePrefix + "/tmp/a/b/c", Identifier: 111})
index.Subscribe("cl2", packets.Subscription{Qos: 0, Filter: SharePrefix + "/tmp/a/b/c", Identifier: 112})
index.Subscribe("cl3", packets.Subscription{Qos: 0, Filter: SharePrefix + "/tmp2/a/b/c", Identifier: 113})
index.Subscribe("cl2", packets.Subscription{Qos: 0, Filter: SharePrefix + "/tmp/a/b/+", Identifier: 10})
index.Subscribe("cl3", packets.Subscription{Qos: 1, Filter: SharePrefix + "/tmp/a/b/+", Identifier: 200})
index.Subscribe("cl4", packets.Subscription{Qos: 0, Filter: SharePrefix + "/tmp/a/b/+", Identifier: 201})
index.Subscribe("cl5", packets.Subscription{Qos: 0, Filter: SharePrefix + "/tmp/a/b/c/#"})
subs := index.scanSubscribers("a/b/c", 0, nil, new(Subscribers))
require.Equal(t, 4, len(subs.Shared))
}
func TestSelectSharedSubscriber(t *testing.T) {
index := NewTopicsIndex()
index.Subscribe("cl1", packets.Subscription{Qos: 1, Filter: SharePrefix + "/tmp/a/b/c", Identifier: 110})
index.Subscribe("cl1b", packets.Subscription{Qos: 0, Filter: SharePrefix + "/tmp/a/b/c", Identifier: 111})
index.Subscribe("cl2", packets.Subscription{Qos: 0, Filter: SharePrefix + "/tmp/a/b/c", Identifier: 112})
index.Subscribe("cl3", packets.Subscription{Qos: 0, Filter: SharePrefix + "/tmp2/a/b/c", Identifier: 113})
subs := index.scanSubscribers("a/b/c", 0, nil, new(Subscribers))
require.Equal(t, 2, len(subs.Shared))
require.Contains(t, subs.Shared, SharePrefix+"/tmp/a/b/c")
require.Contains(t, subs.Shared, SharePrefix+"/tmp2/a/b/c")
require.Len(t, subs.Shared[SharePrefix+"/tmp/a/b/c"], 3)
require.Len(t, subs.Shared[SharePrefix+"/tmp2/a/b/c"], 1)
subs.SelectShared()
require.Len(t, subs.SharedSelected, 2)
}
func TestMergeSharedSelected(t *testing.T) {
s := &Subscribers{
SharedSelected: map[string]packets.Subscription{
"cl1": {Qos: 1, Filter: SharePrefix + "/tmp/a/b/c", Identifier: 110},
"cl2": {Qos: 1, Filter: SharePrefix + "/tmp2/a/b/c", Identifier: 111},
},
Subscriptions: map[string]packets.Subscription{
"cl2": {Qos: 1, Filter: "a/b/c", Identifier: 112},
},
}
s.MergeSharedSelected()
require.Equal(t, 2, len(s.Subscriptions))
require.Contains(t, s.Subscriptions, "cl1")
require.Contains(t, s.Subscriptions, "cl2")
require.EqualValues(t, map[string]int{
SharePrefix + "/tmp2/a/b/c": 111,
"a/b/c": 112,
}, s.Subscriptions["cl2"].Identifiers)
}
func TestSubscribersFind(t *testing.T) {
tt := []struct {
filter string
topic string
matched bool
}{
{filter: "a", topic: "a", matched: true},
{filter: "a/", topic: "a", matched: false},
{filter: "a/", topic: "a/", matched: true},
{filter: "/a", topic: "/a", matched: true},
{filter: "path/to/my/mqtt", topic: "path/to/my/mqtt", matched: true},
{filter: "path/to/+/mqtt", topic: "path/to/my/mqtt", matched: true},
{filter: "+/to/+/mqtt", topic: "path/to/my/mqtt", matched: true},
{filter: "#", topic: "path/to/my/mqtt", matched: true},
{filter: "+/+/+/+", topic: "path/to/my/mqtt", matched: true},
{filter: "+/+/+/#", topic: "path/to/my/mqtt", matched: true},
{filter: "zen/#", topic: "zen", matched: true}, // as per 4.7.1.2
{filter: "trailing-end/#", topic: "trailing-end/", matched: true},
{filter: "+/prefixed", topic: "/prefixed", matched: true},
{filter: "+/+/#", topic: "path/to/my/mqtt", matched: true},
{filter: "path/to/", topic: "path/to/my/mqtt", matched: false},
{filter: "#/stuff", topic: "path/to/my/mqtt", matched: false},
{filter: "#", topic: "$SYS/info", matched: false},
{filter: "$SYS/#", topic: "$SYS/info", matched: true},
{filter: "+/info", topic: "$SYS/info", matched: false},
}
for _, tx := range tt {
t.Run("filter:'"+tx.filter+"' vs topic:'"+tx.topic+"'", func(t *testing.T) {
index := NewTopicsIndex()
index.Subscribe("cl1", packets.Subscription{Filter: tx.filter})
subs := index.Subscribers(tx.topic)
require.Equal(t, tx.matched, len(subs.Subscriptions) == 1)
})
}
}
func BenchmarkSubscribers(b *testing.B) {
index := NewTopicsIndex()
index.Subscribe("cl1", packets.Subscription{Filter: "a/b/c"})
index.Subscribe("cl1", packets.Subscription{Filter: "a/+/c"})
index.Subscribe("cl1", packets.Subscription{Filter: "a/b/c/+"})
index.Subscribe("cl2", packets.Subscription{Filter: "a/b/c/d"})
index.Subscribe("cl3", packets.Subscription{Filter: "#"})
for n := 0; n < b.N; n++ {
index.Subscribers("a/b/c")
}
}
func TestMessagesPattern(t *testing.T) {
payload := []byte("hello")
fh := packets.FixedHeader{Type: packets.Publish, Retain: true}
pks := []packets.Packet{
{TopicName: "$SYS/uptime", Payload: payload, FixedHeader: fh},
{TopicName: "$SYS/info", Payload: payload, FixedHeader: fh},
{TopicName: "a/b/c/d", Payload: payload, FixedHeader: fh},
{TopicName: "a/b/c/e", Payload: payload, FixedHeader: fh},
{TopicName: "a/b/d/f", Payload: payload, FixedHeader: fh},
{TopicName: "q/w/e/r/t/y", Payload: payload, FixedHeader: fh},
{TopicName: "q/x/e/r/t/o", Payload: payload, FixedHeader: fh},
{TopicName: "asdf", Payload: payload, FixedHeader: fh},
}
tt := []struct {
filter string
len int
}{
{"a/b/c/d", 1},
{"$SYS/+", 2},
{"$SYS/#", 2},
{"#", len(pks) - 2},
{"a/b/c/+", 2},
{"a/+/c/+", 2},
{"+/+/+/d", 1},
{"q/w/e/#", 1},
{"+/+/+/+", 3},
{"q/#", 2},
{"asdf", 1},
{"", 0},
{"#", 6},
}
index := NewTopicsIndex()
for _, pk := range pks {
index.RetainMessage(pk)
}
for _, tx := range tt {
t.Run("filter:'"+tx.filter, func(t *testing.T) {
messages := index.Messages(tx.filter)
require.Equal(t, tx.len, len(messages))
})
}
}
func BenchmarkMessages(b *testing.B) {
index := NewTopicsIndex()
index.RetainMessage(packets.Packet{TopicName: "a/b/c/d"})
index.RetainMessage(packets.Packet{TopicName: "a/b/d/e/f"})
index.RetainMessage(packets.Packet{TopicName: "d/e/f/g"})
index.RetainMessage(packets.Packet{TopicName: "$SYS/info"})
index.RetainMessage(packets.Packet{TopicName: "q/w/e/r/t/y"})
for n := 0; n < b.N; n++ {
index.Messages("+/b/c/+")
}
}
func TestNewParticles(t *testing.T) {
cl := newParticles()
require.NotNil(t, cl.internal)
}
func TestParticlesAdd(t *testing.T) {
p := newParticles()
p.add(&particle{key: "a"})
require.Contains(t, p.internal, "a")
}
func TestParticlesGet(t *testing.T) {
p := newParticles()
p.add(&particle{key: "a"})
p.add(&particle{key: "b"})
require.Contains(t, p.internal, "a")
require.Contains(t, p.internal, "b")
particle := p.get("a")
require.NotNil(t, particle)
require.Equal(t, "a", particle.key)
}
func TestParticlesGetAll(t *testing.T) {
p := newParticles()
p.add(&particle{key: "a"})
p.add(&particle{key: "b"})
p.add(&particle{key: "c"})
require.Contains(t, p.internal, "a")
require.Contains(t, p.internal, "b")
require.Contains(t, p.internal, "c")
particles := p.getAll()
require.Len(t, particles, 3)
}
func TestParticlesLen(t *testing.T) {
p := newParticles()
p.add(&particle{key: "a"})
p.add(&particle{key: "b"})
require.Contains(t, p.internal, "a")
require.Contains(t, p.internal, "b")
require.Equal(t, 2, p.len())
}
func TestParticlesDelete(t *testing.T) {
p := newParticles()
p.add(&particle{key: "a"})
require.Contains(t, p.internal, "a")
p.delete("a")
particle := p.get("a")
require.Nil(t, particle)
}
func TestIsValid(t *testing.T) {
require.True(t, IsValidFilter("a/b/c", false))
require.True(t, IsValidFilter("a/b//c", false))
require.True(t, IsValidFilter("$SYS", false))
require.True(t, IsValidFilter("$SYS/info", false))
require.True(t, IsValidFilter("$sys/info", false))
require.True(t, IsValidFilter("abc/#", false))
require.False(t, IsValidFilter("", false))
require.False(t, IsValidFilter(SharePrefix, false))
require.False(t, IsValidFilter(SharePrefix+"/", false))
require.False(t, IsValidFilter(SharePrefix+"/b+/", false))
require.False(t, IsValidFilter(SharePrefix+"/+", false))
require.False(t, IsValidFilter(SharePrefix+"/#", false))
require.False(t, IsValidFilter(SharePrefix+"/#/", false))
require.False(t, IsValidFilter("a/#/c", false))
}
func TestIsValidForPublish(t *testing.T) {
require.True(t, IsValidFilter("", true))
require.True(t, IsValidFilter("a/b/c", true))
require.False(t, IsValidFilter("a/b/+/d", true))
require.False(t, IsValidFilter("a/b/#", true))
require.False(t, IsValidFilter("$SYS/info", true))
}
func TestIsSharedFilter(t *testing.T) {
require.True(t, IsSharedFilter(SharePrefix+"/tmp/a/b/c"))
require.False(t, IsSharedFilter("a/b/c"))
}
func TestNewInboundAliases(t *testing.T) {
a := NewInboundTopicAliases(5)
require.NotNil(t, a)
require.NotNil(t, a.internal)
require.Equal(t, uint16(5), a.maximum)
}
func TestInboundAliasesSet(t *testing.T) {
topic := "test"
id := uint16(1)
a := NewInboundTopicAliases(5)
require.Equal(t, topic, a.Set(id, topic))
require.Contains(t, a.internal, id)
require.Equal(t, a.internal[id], topic)
require.Equal(t, topic, a.Set(id, ""))
}
func TestInboundAliasesSetMaxZero(t *testing.T) {
topic := "test"
id := uint16(1)
a := NewInboundTopicAliases(0)
require.Equal(t, topic, a.Set(id, topic))
require.NotContains(t, a.internal, id)
}
func TestNewOutboundAliases(t *testing.T) {
a := NewOutboundTopicAliases(5)
require.NotNil(t, a)
require.NotNil(t, a.internal)
require.Equal(t, uint16(5), a.maximum)
require.Equal(t, uint32(0), a.cursor)
}
func TestOutboundAliasesSet(t *testing.T) {
a := NewOutboundTopicAliases(3)
n, ok := a.Set("t1")
require.False(t, ok)
require.Equal(t, uint16(1), n)
n, ok = a.Set("t2")
require.False(t, ok)
require.Equal(t, uint16(2), n)
n, ok = a.Set("t3")
require.False(t, ok)
require.Equal(t, uint16(3), n)
n, ok = a.Set("t4")
require.False(t, ok)
require.Equal(t, uint16(0), n)
n, ok = a.Set("t2")
require.True(t, ok)
require.Equal(t, uint16(2), n)
}
func TestOutboundAliasesSetMaxZero(t *testing.T) {
topic := "test"
a := NewOutboundTopicAliases(0)
n, ok := a.Set(topic)
require.False(t, ok)
require.Equal(t, uint16(0), n)
}
func TestNewTopicAliases(t *testing.T) {
a := NewTopicAliases(5)
require.NotNil(t, a.Inbound)
require.Equal(t, uint16(5), a.Inbound.maximum)
require.NotNil(t, a.Outbound)
require.Equal(t, uint16(5), a.Outbound.maximum)
}
func TestNewInlineSubscriptions(t *testing.T) {
subscriptions := NewInlineSubscriptions()
require.NotNil(t, subscriptions)
require.NotNil(t, subscriptions.internal)
require.Equal(t, 0, subscriptions.Len())
}
func TestInlineSubscriptionAdd(t *testing.T) {
subscriptions := NewInlineSubscriptions()
handler := func(cl *Client, sub packets.Subscription, pk packets.Packet) {
// handler logic
}
subscription := InlineSubscription{
Subscription: packets.Subscription{Filter: "a/b/c", Identifier: 1},
Handler: handler,
}
subscriptions.Add(subscription)
sub, ok := subscriptions.Get(1)
require.True(t, ok)
require.Equal(t, "a/b/c", sub.Filter)
require.Equal(t, fmt.Sprintf("%p", handler), fmt.Sprintf("%p", sub.Handler))
}
func TestInlineSubscriptionGet(t *testing.T) {
subscriptions := NewInlineSubscriptions()
handler := func(cl *Client, sub packets.Subscription, pk packets.Packet) {
// handler logic
}
subscription := InlineSubscription{
Subscription: packets.Subscription{Filter: "a/b/c", Identifier: 1},
Handler: handler,
}
subscriptions.Add(subscription)
sub, ok := subscriptions.Get(1)
require.True(t, ok)
require.Equal(t, "a/b/c", sub.Filter)
require.Equal(t, fmt.Sprintf("%p", handler), fmt.Sprintf("%p", sub.Handler))
_, ok = subscriptions.Get(999)
require.False(t, ok)
}
func TestInlineSubscriptionsGetAll(t *testing.T) {
subscriptions := NewInlineSubscriptions()
subscriptions.Add(InlineSubscription{
Subscription: packets.Subscription{Filter: "a/b/c", Identifier: 1},
})
subscriptions.Add(InlineSubscription{
Subscription: packets.Subscription{Filter: "a/b/c", Identifier: 1},
})
subscriptions.Add(InlineSubscription{
Subscription: packets.Subscription{Filter: "a/b/c", Identifier: 2},
})
subscriptions.Add(InlineSubscription{
Subscription: packets.Subscription{Filter: "d/e/f", Identifier: 3},
})
allSubs := subscriptions.GetAll()
require.Len(t, allSubs, 3)
require.Contains(t, allSubs, 1)
require.Contains(t, allSubs, 2)
require.Contains(t, allSubs, 3)
}
func TestInlineSubscriptionDelete(t *testing.T) {
subscriptions := NewInlineSubscriptions()
handler := func(cl *Client, sub packets.Subscription, pk packets.Packet) {
// handler logic
}
subscription := InlineSubscription{
Subscription: packets.Subscription{Filter: "a/b/c", Identifier: 1},
Handler: handler,
}
subscriptions.Add(subscription)
subscriptions.Delete(1)
_, ok := subscriptions.Get(1)
require.False(t, ok)
require.Empty(t, subscriptions.GetAll())
require.Zero(t, subscriptions.Len())
}
func TestInlineSubscribe(t *testing.T) {
handler := func(cl *Client, sub packets.Subscription, pk packets.Packet) {
// handler logic
}
tt := []struct {
desc string
filter string
subscription InlineSubscription
wasNew bool
}{
{
desc: "subscribe",
filter: "a/b/c",
subscription: InlineSubscription{Handler: handler, Subscription: packets.Subscription{Filter: "a/b/c", Identifier: 1}},
wasNew: true,
},
{
desc: "subscribe existed",
filter: "a/b/c",
subscription: InlineSubscription{Handler: handler, Subscription: packets.Subscription{Filter: "a/b/c", Identifier: 1}},
wasNew: false,
},
{
desc: "subscribe different identifier",
filter: "a/b/c",
subscription: InlineSubscription{Handler: handler, Subscription: packets.Subscription{Filter: "a/b/c", Identifier: 2}},
wasNew: true,
},
{
desc: "subscribe case sensitive didnt exist",
filter: "A/B/c",
subscription: InlineSubscription{Handler: handler, Subscription: packets.Subscription{Filter: "A/B/c", Identifier: 1}},
wasNew: true,
},
{
desc: "wildcard+ sub",
filter: "d/+",
subscription: InlineSubscription{Handler: handler, Subscription: packets.Subscription{Filter: "d/+", Identifier: 1}},
wasNew: true,
},
{
desc: "wildcard# sub",
filter: "d/e/#",
subscription: InlineSubscription{Handler: handler, Subscription: packets.Subscription{Filter: "d/e/#", Identifier: 1}},
wasNew: true,
},
}
index := NewTopicsIndex()
for _, tx := range tt {
t.Run(tx.desc, func(t *testing.T) {
require.Equal(t, tx.wasNew, index.InlineSubscribe(tx.subscription))
})