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mirror of https://github.com/mattermost/focalboard.git synced 2024-12-24 13:43:12 +02:00
focalboard/server/ws/plugin_adapter_test.go
Miguel de la Cruz ce98ec55fc
Recovers inactive websockets connections on reconnect in plugin mode (#1324)
* Stores a cache of inactive connections so their subscriptions are recovered on reconnections

* Adds test for getUserIDsForWorkspace and simplify messages through helpers

* Make the plugin websocket client more resilient

* Remove missed event callback and limit ws state polling to one at a time

* Add read lock for the plugin adapter and guarantee atomic ops on inactiveAt

* Add mutex to the plugin adapter client and tests to cover for races

* Split plugin adapter mutex in two and use them to lock only on data access

* Group plugin adapter fields by the mutex that's guarding them
2021-09-29 18:19:34 +02:00

347 lines
11 KiB
Go

package ws
import (
"sync"
"testing"
mmModel "github.com/mattermost/mattermost-server/v6/model"
"github.com/stretchr/testify/require"
)
func TestPluginAdapterWorkspaceSubscription(t *testing.T) {
th := SetupTestHelper(t)
webConnID := mmModel.NewId()
userID := mmModel.NewId()
workspaceID := mmModel.NewId()
var pac *PluginAdapterClient
t.Run("Should correctly add a connection", func(t *testing.T) {
require.Empty(t, th.pa.listeners)
require.Empty(t, th.pa.listenersByWorkspace)
th.pa.OnWebSocketConnect(webConnID, userID)
require.Len(t, th.pa.listeners, 1)
var ok bool
pac, ok = th.pa.listeners[webConnID]
require.True(t, ok)
require.NotNil(t, pac)
require.Equal(t, userID, pac.userID)
require.Empty(t, th.pa.listenersByWorkspace)
})
t.Run("Should correctly subscribe to a workspace", func(t *testing.T) {
require.False(t, pac.isSubscribedToWorkspace(workspaceID))
th.SubscribeWebConnToWorkspace(pac.webConnID, pac.userID, workspaceID)
require.Len(t, th.pa.listenersByWorkspace[workspaceID], 1)
require.Contains(t, th.pa.listenersByWorkspace[workspaceID], pac)
require.Len(t, pac.workspaces, 1)
require.Contains(t, pac.workspaces, workspaceID)
require.True(t, pac.isSubscribedToWorkspace(workspaceID))
})
t.Run("Subscribing again to a subscribed workspace would have no effect", func(t *testing.T) {
require.True(t, pac.isSubscribedToWorkspace(workspaceID))
th.SubscribeWebConnToWorkspace(pac.webConnID, pac.userID, workspaceID)
require.Len(t, th.pa.listenersByWorkspace[workspaceID], 1)
require.Contains(t, th.pa.listenersByWorkspace[workspaceID], pac)
require.Len(t, pac.workspaces, 1)
require.Contains(t, pac.workspaces, workspaceID)
require.True(t, pac.isSubscribedToWorkspace(workspaceID))
})
t.Run("Should correctly unsubscribe to a workspace", func(t *testing.T) {
require.True(t, pac.isSubscribedToWorkspace(workspaceID))
th.UnsubscribeWebConnFromWorkspace(pac.webConnID, pac.userID, workspaceID)
require.Empty(t, th.pa.listenersByWorkspace[workspaceID])
require.Empty(t, pac.workspaces)
require.False(t, pac.isSubscribedToWorkspace(workspaceID))
})
t.Run("Unsubscribing again to an unsubscribed workspace would have no effect", func(t *testing.T) {
require.False(t, pac.isSubscribedToWorkspace(workspaceID))
th.UnsubscribeWebConnFromWorkspace(pac.webConnID, pac.userID, workspaceID)
require.Empty(t, th.pa.listenersByWorkspace[workspaceID])
require.Empty(t, pac.workspaces)
require.False(t, pac.isSubscribedToWorkspace(workspaceID))
})
t.Run("Should correctly be marked as inactive if disconnected", func(t *testing.T) {
require.Len(t, th.pa.listeners, 1)
require.True(t, th.pa.listeners[webConnID].isActive())
th.pa.OnWebSocketDisconnect(webConnID, userID)
require.Len(t, th.pa.listeners, 1)
require.False(t, th.pa.listeners[webConnID].isActive())
})
t.Run("Should be marked back as active if reconnect", func(t *testing.T) {
require.Len(t, th.pa.listeners, 1)
require.False(t, th.pa.listeners[webConnID].isActive())
th.pa.OnWebSocketConnect(webConnID, userID)
require.Len(t, th.pa.listeners, 1)
require.True(t, th.pa.listeners[webConnID].isActive())
})
}
func TestPluginAdapterClientReconnect(t *testing.T) {
th := SetupTestHelper(t)
webConnID := mmModel.NewId()
userID := mmModel.NewId()
workspaceID := mmModel.NewId()
var pac *PluginAdapterClient
t.Run("A user should be able to reconnect within the accepted threshold and keep their subscriptions", func(t *testing.T) {
// create the connection
require.Len(t, th.pa.listeners, 0)
require.Len(t, th.pa.listenersByUserID[userID], 0)
th.pa.OnWebSocketConnect(webConnID, userID)
require.Len(t, th.pa.listeners, 1)
require.Len(t, th.pa.listenersByUserID[userID], 1)
var ok bool
pac, ok = th.pa.listeners[webConnID]
require.True(t, ok)
require.NotNil(t, pac)
th.SubscribeWebConnToWorkspace(pac.webConnID, pac.userID, workspaceID)
require.True(t, pac.isSubscribedToWorkspace(workspaceID))
// disconnect
th.pa.OnWebSocketDisconnect(webConnID, userID)
require.False(t, pac.isActive())
require.Len(t, th.pa.listeners, 1)
require.Len(t, th.pa.listenersByUserID[userID], 1)
// reconnect right away. The connection should still be subscribed
th.pa.OnWebSocketConnect(webConnID, userID)
require.Len(t, th.pa.listeners, 1)
require.Len(t, th.pa.listenersByUserID[userID], 1)
require.True(t, pac.isActive())
require.True(t, pac.isSubscribedToWorkspace(workspaceID))
})
t.Run("Should remove old inactive connection when user connects with a different ID", func(t *testing.T) {
// we set the stale threshold to zero so inactive connections always get deleted
oldStaleThreshold := th.pa.staleThreshold
th.pa.staleThreshold = 0
defer func() { th.pa.staleThreshold = oldStaleThreshold }()
th.pa.OnWebSocketDisconnect(webConnID, userID)
require.Len(t, th.pa.listeners, 1)
require.Len(t, th.pa.listenersByUserID[userID], 1)
require.Equal(t, webConnID, th.pa.listenersByUserID[userID][0].webConnID)
newWebConnID := mmModel.NewId()
th.pa.OnWebSocketConnect(newWebConnID, userID)
require.Len(t, th.pa.listeners, 1)
require.Len(t, th.pa.listenersByUserID[userID], 1)
require.Contains(t, th.pa.listeners, newWebConnID)
require.NotContains(t, th.pa.listeners, webConnID)
require.Equal(t, newWebConnID, th.pa.listenersByUserID[userID][0].webConnID)
// if the same ID connects again, it should have no subscriptions
th.pa.OnWebSocketConnect(webConnID, userID)
require.Len(t, th.pa.listeners, 2)
require.Len(t, th.pa.listenersByUserID[userID], 2)
reconnectedPAC, ok := th.pa.listeners[webConnID]
require.True(t, ok)
require.False(t, reconnectedPAC.isSubscribedToWorkspace(workspaceID))
})
t.Run("Should not remove active connections when user connects with a different ID", func(t *testing.T) {
// we set the stale threshold to zero so inactive connections always get deleted
oldStaleThreshold := th.pa.staleThreshold
th.pa.staleThreshold = 0
defer func() { th.pa.staleThreshold = oldStaleThreshold }()
// currently we have two listeners for userID, both active
require.Len(t, th.pa.listeners, 2)
// a new user connects
th.pa.OnWebSocketConnect(mmModel.NewId(), userID)
// and we should have three connections, all of them active
require.Len(t, th.pa.listeners, 3)
for _, listener := range th.pa.listeners {
require.True(t, listener.isActive())
}
})
}
func TestGetUserIDsForWorkspace(t *testing.T) {
th := SetupTestHelper(t)
// we have two workspaces
workspaceID1 := mmModel.NewId()
workspaceID2 := mmModel.NewId()
// user 1 has two connections
userID1 := mmModel.NewId()
webConnID1 := mmModel.NewId()
webConnID2 := mmModel.NewId()
// user 2 has one connection
userID2 := mmModel.NewId()
webConnID3 := mmModel.NewId()
wg := new(sync.WaitGroup)
wg.Add(3)
go func(wg *sync.WaitGroup) {
th.pa.OnWebSocketConnect(webConnID1, userID1)
th.SubscribeWebConnToWorkspace(webConnID1, userID1, workspaceID1)
wg.Done()
}(wg)
go func(wg *sync.WaitGroup) {
th.pa.OnWebSocketConnect(webConnID2, userID1)
th.SubscribeWebConnToWorkspace(webConnID2, userID1, workspaceID2)
wg.Done()
}(wg)
go func(wg *sync.WaitGroup) {
th.pa.OnWebSocketConnect(webConnID3, userID2)
th.SubscribeWebConnToWorkspace(webConnID3, userID2, workspaceID2)
wg.Done()
}(wg)
wg.Wait()
t.Run("should find that only user1 is connected to workspace 1", func(t *testing.T) {
userIDs := th.pa.getUserIDsForWorkspace(workspaceID1)
require.ElementsMatch(t, []string{userID1}, userIDs)
})
t.Run("should find that both users are connected to workspace 2", func(t *testing.T) {
userIDs := th.pa.getUserIDsForWorkspace(workspaceID2)
require.ElementsMatch(t, []string{userID1, userID2}, userIDs)
})
t.Run("should ignore user1 if webConn 2 inactive when getting workspace 2 user ids", func(t *testing.T) {
th.pa.OnWebSocketDisconnect(webConnID2, userID1)
userIDs := th.pa.getUserIDsForWorkspace(workspaceID2)
require.ElementsMatch(t, []string{userID2}, userIDs)
})
t.Run("should still find user 1 in workspace 1 after the webConn 2 disconnection", func(t *testing.T) {
userIDs := th.pa.getUserIDsForWorkspace(workspaceID1)
require.ElementsMatch(t, []string{userID1}, userIDs)
})
t.Run("should find again both users if the webConn 2 comes back", func(t *testing.T) {
th.pa.OnWebSocketConnect(webConnID2, userID1)
userIDs := th.pa.getUserIDsForWorkspace(workspaceID2)
require.ElementsMatch(t, []string{userID1, userID2}, userIDs)
})
}
func TestParallelSubscriptionsOnMultipleConnections(t *testing.T) {
th := SetupTestHelper(t)
workspaceID1 := mmModel.NewId()
workspaceID2 := mmModel.NewId()
workspaceID3 := mmModel.NewId()
workspaceID4 := mmModel.NewId()
userID := mmModel.NewId()
webConnID1 := mmModel.NewId()
webConnID2 := mmModel.NewId()
th.pa.OnWebSocketConnect(webConnID1, userID)
pac1, ok := th.pa.GetListenerByWebConnID(webConnID1)
require.True(t, ok)
th.pa.OnWebSocketConnect(webConnID2, userID)
pac2, ok := th.pa.GetListenerByWebConnID(webConnID2)
require.True(t, ok)
wg := new(sync.WaitGroup)
wg.Add(4)
go func(wg *sync.WaitGroup) {
th.SubscribeWebConnToWorkspace(webConnID1, userID, workspaceID1)
require.True(t, pac1.isSubscribedToWorkspace(workspaceID1))
th.SubscribeWebConnToWorkspace(webConnID2, userID, workspaceID1)
require.True(t, pac2.isSubscribedToWorkspace(workspaceID1))
th.UnsubscribeWebConnFromWorkspace(webConnID1, userID, workspaceID1)
require.False(t, pac1.isSubscribedToWorkspace(workspaceID1))
th.UnsubscribeWebConnFromWorkspace(webConnID2, userID, workspaceID1)
require.False(t, pac2.isSubscribedToWorkspace(workspaceID1))
wg.Done()
}(wg)
go func(wg *sync.WaitGroup) {
th.SubscribeWebConnToWorkspace(webConnID1, userID, workspaceID2)
require.True(t, pac1.isSubscribedToWorkspace(workspaceID2))
th.SubscribeWebConnToWorkspace(webConnID2, userID, workspaceID2)
require.True(t, pac2.isSubscribedToWorkspace(workspaceID2))
th.UnsubscribeWebConnFromWorkspace(webConnID1, userID, workspaceID2)
require.False(t, pac1.isSubscribedToWorkspace(workspaceID2))
th.UnsubscribeWebConnFromWorkspace(webConnID2, userID, workspaceID2)
require.False(t, pac2.isSubscribedToWorkspace(workspaceID2))
wg.Done()
}(wg)
go func(wg *sync.WaitGroup) {
th.SubscribeWebConnToWorkspace(webConnID1, userID, workspaceID3)
require.True(t, pac1.isSubscribedToWorkspace(workspaceID3))
th.SubscribeWebConnToWorkspace(webConnID2, userID, workspaceID3)
require.True(t, pac2.isSubscribedToWorkspace(workspaceID3))
th.UnsubscribeWebConnFromWorkspace(webConnID1, userID, workspaceID3)
require.False(t, pac1.isSubscribedToWorkspace(workspaceID3))
th.UnsubscribeWebConnFromWorkspace(webConnID2, userID, workspaceID3)
require.False(t, pac2.isSubscribedToWorkspace(workspaceID3))
wg.Done()
}(wg)
go func(wg *sync.WaitGroup) {
th.SubscribeWebConnToWorkspace(webConnID1, userID, workspaceID4)
require.True(t, pac1.isSubscribedToWorkspace(workspaceID4))
th.SubscribeWebConnToWorkspace(webConnID2, userID, workspaceID4)
require.True(t, pac2.isSubscribedToWorkspace(workspaceID4))
th.UnsubscribeWebConnFromWorkspace(webConnID1, userID, workspaceID4)
require.False(t, pac1.isSubscribedToWorkspace(workspaceID4))
th.UnsubscribeWebConnFromWorkspace(webConnID2, userID, workspaceID4)
require.False(t, pac2.isSubscribedToWorkspace(workspaceID4))
wg.Done()
}(wg)
wg.Wait()
}