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mox/imapserver/notify_test.go
Mechiel Lukkien e7b562e3f2
imapclient: first step towards making package usable as imap client with other imap servers, and minor imapserver bug fix
The imapclient needs more changes, like more strict parsing, before it can be a
generally usable IMAP client, these are a few steps towards that.

- Fix a bug in the imapserver METADATA responses for TOOMANY and MAXSIZE.
- Split low-level IMAP protocol handling (new Proto type) from the higher-level
  client command handling (existing Conn type). The idea is that some simple
  uses of IMAP can get by with just using these commands, while more intricate
  uses of IMAP (like a synchronizing client that needs to talk to all kinds of
  servers with different behaviours and implemented extensions) can write custom
  commands and read untagged responses or command completion results
  explicitly. The lower-level method names have clearer names now, like
  ReadResponse instead of Response.
- Merge the untagged responses and (command completion) "Result" into a new
  type Response. Makes function signatures simpler. And make Response implement
  the error interface, and change command methods to return the Response as error
  if the result is NO or BAD. Simplifies error handling, and still provides the
  option to continue after a NO or BAD.
- Add UIDSearch/MSNSearch commands, with a custom "search program", so mostly
  to indicate these commands exist.
- More complete coverage of types for response codes, for easier handling.
- Automatically handle any ENABLED or CAPABILITY untagged response or response
  code for IMAP command methods on type Conn.
- Make difference between MSN vs UID versions of
  FETCH/STORE/SEARCH/COPY/MOVE/REPLACE commands more clear. The original MSN
  commands now have MSN prefixed to their name, so they are grouped together in
  the documentation.
- Document which capabilities are needed for a command.
2025-04-15 08:37:18 +02:00

516 lines
21 KiB
Go

package imapserver
import (
"strings"
"testing"
"time"
"github.com/mjl-/mox/imapclient"
"github.com/mjl-/mox/store"
)
func TestNotify(t *testing.T) {
testNotify(t, false)
}
func TestNotifyUIDOnly(t *testing.T) {
testNotify(t, true)
}
func testNotify(t *testing.T, uidonly bool) {
defer mockUIDValidity()()
tc := start(t, uidonly)
defer tc.close()
tc.login("mjl@mox.example", password0)
tc.client.Select("inbox")
// Check for some invalid syntax.
tc.transactf("bad", "Notify")
tc.transactf("bad", "Notify bogus")
tc.transactf("bad", "Notify None ") // Trailing space.
tc.transactf("bad", "Notify Set")
tc.transactf("bad", "Notify Set ")
tc.transactf("bad", "Notify Set Status")
tc.transactf("bad", "Notify Set Status ()") // Empty list.
tc.transactf("bad", "Notify Set Status (UnknownSpecifier (messageNew))")
tc.transactf("bad", "Notify Set Status (Personal messageNew)") // Missing list around events.
tc.transactf("bad", "Notify Set Status (Personal (messageNew) )") // Trailing space.
tc.transactf("bad", "Notify Set Status (Personal (messageNew)) ") // Trailing space.
tc.transactf("bad", "Notify Set Status (Selected (mailboxName))") // MailboxName not allowed on Selected.
tc.transactf("bad", "Notify Set Status (Selected (messageNew))") // MessageNew must come with MessageExpunge.
tc.transactf("bad", "Notify Set Status (Selected (flagChange))") // flagChange must come with MessageNew and MessageExpunge.
tc.transactf("bad", "Notify Set Status (Selected (mailboxName)) (Selected-Delayed (mailboxName))") // Duplicate selected.
tc.transactf("no", "Notify Set Status (Selected (annotationChange))") // We don't implement annotation change.
tc.xcode(imapclient.CodeBadEvent{"MessageNew", "MessageExpunge", "FlagChange", "MailboxName", "SubscriptionChange", "MailboxMetadataChange", "ServerMetadataChange"})
tc.transactf("no", "Notify Set Status (Personal (unknownEvent))")
tc.xcode(imapclient.CodeBadEvent{"MessageNew", "MessageExpunge", "FlagChange", "MailboxName", "SubscriptionChange", "MailboxMetadataChange", "ServerMetadataChange"})
tc2 := startNoSwitchboard(t, uidonly)
defer tc2.closeNoWait()
tc2.login("mjl@mox.example", password0)
tc2.client.Select("inbox")
var modseq uint32 = 4
// Check that we don't get pending changes when we set "notify none". We first make
// changes that we drain with noop. Then add new pending changes and execute
// "notify none". Server should still process changes to the message sequence
// numbers of the selected mailbox.
tc2.client.Append("inbox", makeAppend(searchMsg)) // Results in exists and fetch.
modseq++
tc2.client.Append("Junk", makeAppend(searchMsg)) // Not selected, not mentioned.
modseq++
tc.transactf("ok", "noop")
tc.xuntagged(
imapclient.UntaggedExists(1),
tc.untaggedFetch(1, 1, imapclient.FetchFlags(nil)),
)
tc2.client.UIDStoreFlagsAdd("1:*", true, `\Deleted`)
modseq++
tc2.client.Expunge()
modseq++
tc.transactf("ok", "Notify None")
tc.xuntagged() // No untagged responses for delete/expunge.
// Enable notify, will first result in a the pending changes, then status.
tc.transactf("ok", "Notify Set Status (Selected (messageNew (Uid Modseq Bodystructure Preview) messageExpunge flagChange)) (personal (messageNew messageExpunge flagChange mailboxName subscriptionChange mailboxMetadataChange serverMetadataChange))")
tc.xuntagged(
imapclient.UntaggedResult{Status: imapclient.OK, Code: imapclient.CodeHighestModSeq(modseq), Text: "after condstore-enabling command"},
// note: no status for Inbox since it is selected.
imapclient.UntaggedStatus{Mailbox: "Drafts", Attrs: map[imapclient.StatusAttr]int64{imapclient.StatusMessages: 0, imapclient.StatusUIDNext: 1, imapclient.StatusUIDValidity: 1, imapclient.StatusUnseen: 0, imapclient.StatusHighestModSeq: 2}},
imapclient.UntaggedStatus{Mailbox: "Sent", Attrs: map[imapclient.StatusAttr]int64{imapclient.StatusMessages: 0, imapclient.StatusUIDNext: 1, imapclient.StatusUIDValidity: 1, imapclient.StatusUnseen: 0, imapclient.StatusHighestModSeq: 2}},
imapclient.UntaggedStatus{Mailbox: "Archive", Attrs: map[imapclient.StatusAttr]int64{imapclient.StatusMessages: 0, imapclient.StatusUIDNext: 1, imapclient.StatusUIDValidity: 1, imapclient.StatusUnseen: 0, imapclient.StatusHighestModSeq: 2}},
imapclient.UntaggedStatus{Mailbox: "Trash", Attrs: map[imapclient.StatusAttr]int64{imapclient.StatusMessages: 0, imapclient.StatusUIDNext: 1, imapclient.StatusUIDValidity: 1, imapclient.StatusUnseen: 0, imapclient.StatusHighestModSeq: 2}},
imapclient.UntaggedStatus{Mailbox: "Junk", Attrs: map[imapclient.StatusAttr]int64{imapclient.StatusMessages: 1, imapclient.StatusUIDNext: 2, imapclient.StatusUIDValidity: 1, imapclient.StatusUnseen: 1, imapclient.StatusHighestModSeq: int64(modseq - 2)}},
)
// Selecting the mailbox again results in a refresh of the message sequence
// numbers, with the deleted message gone (it wasn't acknowledged yet due to
// "notify none").
tc.client.Select("inbox")
// Add message, should result in EXISTS and FETCH with the configured attributes.
tc2.client.Append("inbox", makeAppend(searchMsg))
modseq++
tc.readuntagged(
imapclient.UntaggedExists(1),
tc.untaggedFetchUID(1, 2,
imapclient.FetchBodystructure{
RespAttr: "BODYSTRUCTURE",
Body: imapclient.BodyTypeMpart{
Bodies: []any{
imapclient.BodyTypeText{
MediaType: "TEXT",
MediaSubtype: "PLAIN",
BodyFields: imapclient.BodyFields{
Params: [][2]string{[...]string{"CHARSET", "utf-8"}},
Octets: 21,
},
Lines: 1,
Ext: &imapclient.BodyExtension1Part{
Disposition: ptr((*string)(nil)),
DispositionParams: ptr([][2]string(nil)),
Language: ptr([]string(nil)),
Location: ptr((*string)(nil)),
},
},
imapclient.BodyTypeText{
MediaType: "TEXT",
MediaSubtype: "HTML",
BodyFields: imapclient.BodyFields{
Params: [][2]string{[...]string{"CHARSET", "utf-8"}},
Octets: 15,
},
Lines: 1,
Ext: &imapclient.BodyExtension1Part{
Disposition: ptr((*string)(nil)),
DispositionParams: ptr([][2]string(nil)),
Language: ptr([]string(nil)),
Location: ptr((*string)(nil)),
},
},
},
MediaSubtype: "ALTERNATIVE",
Ext: &imapclient.BodyExtensionMpart{
Params: [][2]string{{"BOUNDARY", "x"}},
Disposition: ptr((*string)(nil)), // Present but nil.
DispositionParams: ptr([][2]string(nil)),
Language: ptr([]string(nil)),
Location: ptr((*string)(nil)),
},
},
},
imapclient.FetchPreview{Preview: ptr("this is plain text.")},
imapclient.FetchModSeq(modseq),
),
)
// Change flags.
tc2.client.UIDStoreFlagsAdd("1:*", true, `\Deleted`)
modseq++
tc.readuntagged(tc.untaggedFetch(1, 2, imapclient.FetchFlags{`\Deleted`}, imapclient.FetchModSeq(modseq)))
// Remove message.
tc2.client.Expunge()
modseq++
if uidonly {
tc.readuntagged(imapclient.UntaggedVanished{UIDs: xparseNumSet("2")})
} else {
tc.readuntagged(imapclient.UntaggedExpunge(1))
}
// MailboxMetadataChange for mailbox annotation.
tc2.transactf("ok", `setmetadata Archive (/private/comment "test")`)
modseq++
tc.readuntagged(
imapclient.UntaggedMetadataKeys{Mailbox: "Archive", Keys: []string{"/private/comment"}},
)
// MailboxMetadataChange also for the selected Inbox.
tc2.transactf("ok", `setmetadata Inbox (/private/comment "test")`)
modseq++
tc.readuntagged(
imapclient.UntaggedMetadataKeys{Mailbox: "Inbox", Keys: []string{"/private/comment"}},
)
// ServerMetadataChange for server annotation.
tc2.transactf("ok", `setmetadata "" (/private/vendor/other/x "test")`)
modseq++
tc.readuntagged(
imapclient.UntaggedMetadataKeys{Mailbox: "", Keys: []string{"/private/vendor/other/x"}},
)
// SubscriptionChange for new subscription.
tc2.client.Subscribe("doesnotexist")
tc.readuntagged(
imapclient.UntaggedList{Mailbox: "doesnotexist", Separator: '/', Flags: []string{`\Subscribed`, `\NonExistent`}},
)
// SubscriptionChange for removed subscription.
tc2.client.Unsubscribe("doesnotexist")
tc.readuntagged(
imapclient.UntaggedList{Mailbox: "doesnotexist", Separator: '/', Flags: []string{`\NonExistent`}},
)
// SubscriptionChange for selected mailbox.
tc2.client.Unsubscribe("Inbox")
tc2.client.Subscribe("Inbox")
tc.readuntagged(
imapclient.UntaggedList{Mailbox: "Inbox", Separator: '/'},
imapclient.UntaggedList{Mailbox: "Inbox", Separator: '/', Flags: []string{`\Subscribed`}},
)
// MailboxName for creating mailbox.
tc2.client.Create("newbox", nil)
modseq++
tc.readuntagged(
imapclient.UntaggedList{Mailbox: "newbox", Separator: '/', Flags: []string{`\Subscribed`}},
)
// MailboxName for renaming mailbox.
tc2.client.Rename("newbox", "oldbox")
modseq++
tc.readuntagged(
imapclient.UntaggedList{Mailbox: "oldbox", Separator: '/', OldName: "newbox"},
)
// MailboxName for deleting mailbox.
tc2.client.Delete("oldbox")
modseq++
tc.readuntagged(
imapclient.UntaggedList{Mailbox: "oldbox", Separator: '/', Flags: []string{`\NonExistent`}},
)
// Add message again to check for modseq. First set notify again with fewer fetch
// attributes for simpler checking.
tc.transactf("ok", "Notify Set (personal (messageNew messageExpunge flagChange mailboxName subscriptionChange mailboxMetadataChange serverMetadataChange)) (Selected (messageNew (Uid Modseq) messageExpunge flagChange))")
tc2.client.Append("inbox", makeAppend(searchMsg))
modseq++
tc.readuntagged(
imapclient.UntaggedExists(1),
tc.untaggedFetchUID(1, 3, imapclient.FetchModSeq(modseq)),
)
// Next round of events must be ignored. We shouldn't get anything until we add a
// message to "testbox".
tc.transactf("ok", "Notify Set (Selected None) (mailboxes testbox (messageNew messageExpunge)) (personal None)")
tc2.client.Append("inbox", makeAppend(searchMsg)) // MessageNew
modseq++
tc2.client.UIDStoreFlagsAdd("1:*", true, `\Deleted`) // FlagChange
modseq++
tc2.client.Expunge() // MessageExpunge
modseq++
tc2.transactf("ok", `setmetadata Archive (/private/comment "test2")`) // MailboxMetadataChange
modseq++
tc2.transactf("ok", `setmetadata "" (/private/vendor/other/x "test2")`) // ServerMetadataChange
modseq++
tc2.client.Subscribe("doesnotexist2") // SubscriptionChange
tc2.client.Unsubscribe("doesnotexist2") // SubscriptionChange
tc2.client.Create("newbox2", nil) // MailboxName
modseq++
tc2.client.Rename("newbox2", "oldbox2") // MailboxName
modseq++
tc2.client.Delete("oldbox2") // MailboxName
modseq++
// Now trigger receiving a notification.
tc2.client.Create("testbox", nil) // MailboxName
modseq++
tc2.client.Append("testbox", makeAppend(searchMsg)) // MessageNew
modseq++
tc.readuntagged(
imapclient.UntaggedStatus{Mailbox: "testbox", Attrs: map[imapclient.StatusAttr]int64{imapclient.StatusMessages: 1, imapclient.StatusUIDNext: 2, imapclient.StatusUnseen: 1, imapclient.StatusHighestModSeq: int64(modseq)}},
)
// Test filtering per mailbox specifier. We create two mailboxes.
tc.client.Create("inbox/a/b", nil)
modseq++
tc.client.Create("other/a/b", nil)
modseq++
tc.client.Unsubscribe("other/a/b")
// Inboxes
tc3 := startNoSwitchboard(t, uidonly)
defer tc3.closeNoWait()
tc3.login("mjl@mox.example", password0)
tc3.transactf("ok", "Notify Set (Inboxes (messageNew messageExpunge))")
// Subscribed
tc4 := startNoSwitchboard(t, uidonly)
defer tc4.closeNoWait()
tc4.login("mjl@mox.example", password0)
tc4.transactf("ok", "Notify Set (Subscribed (messageNew messageExpunge))")
// Subtree
tc5 := startNoSwitchboard(t, uidonly)
defer tc5.closeNoWait()
tc5.login("mjl@mox.example", password0)
tc5.transactf("ok", "Notify Set (Subtree (Nonexistent inbox) (messageNew messageExpunge))")
// Subtree-One
tc6 := startNoSwitchboard(t, uidonly)
defer tc6.closeNoWait()
tc6.login("mjl@mox.example", password0)
tc6.transactf("ok", "Notify Set (Subtree-One (Nonexistent Inbox/a other) (messageNew messageExpunge))")
// We append to other/a/b first. It would normally come first in the notifications,
// but we check we only get the second event.
tc2.client.Append("other/a/b", makeAppend(searchMsg))
modseq++
tc2.client.Append("inbox/a/b", makeAppend(searchMsg))
modseq++
// No highestmodseq, these connections don't have CONDSTORE enabled.
tc3.readuntagged(
imapclient.UntaggedStatus{Mailbox: "Inbox/a/b", Attrs: map[imapclient.StatusAttr]int64{imapclient.StatusMessages: 1, imapclient.StatusUIDNext: 2, imapclient.StatusUnseen: 1}},
)
tc4.readuntagged(
imapclient.UntaggedStatus{Mailbox: "Inbox/a/b", Attrs: map[imapclient.StatusAttr]int64{imapclient.StatusMessages: 1, imapclient.StatusUIDNext: 2, imapclient.StatusUnseen: 1}},
)
tc5.readuntagged(
imapclient.UntaggedStatus{Mailbox: "Inbox/a/b", Attrs: map[imapclient.StatusAttr]int64{imapclient.StatusMessages: 1, imapclient.StatusUIDNext: 2, imapclient.StatusUnseen: 1}},
)
tc6.readuntagged(
imapclient.UntaggedStatus{Mailbox: "Inbox/a/b", Attrs: map[imapclient.StatusAttr]int64{imapclient.StatusMessages: 1, imapclient.StatusUIDNext: 2, imapclient.StatusUnseen: 1}},
)
// Test for STATUS events on non-selected mailbox for message events.
tc.transactf("ok", "notify set (personal (messageNew messageExpunge flagChange))")
tc.client.Unselect()
tc2.client.Create("statusbox", nil)
modseq++
tc2.client.Append("statusbox", makeAppend(searchMsg))
modseq++
tc.readuntagged(
imapclient.UntaggedStatus{Mailbox: "statusbox", Attrs: map[imapclient.StatusAttr]int64{imapclient.StatusMessages: 1, imapclient.StatusUIDNext: 2, imapclient.StatusUnseen: 1, imapclient.StatusHighestModSeq: int64(modseq)}},
)
// With Selected-Delayed, we only get the events for the selected mailbox for
// explicit commands. We still get other events.
tc.transactf("ok", "notify set (selected-delayed (messageNew messageExpunge flagChange)) (personal (messageNew messageExpunge flagChange))")
tc.client.Select("statusbox")
tc2.client.Append("inbox", makeAppend(searchMsg))
modseq++
tc2.client.UIDStoreFlagsSet("*", true, `\Seen`)
modseq++
tc2.client.Append("statusbox", imapclient.Append{Flags: []string{"newflag"}, Size: int64(len(searchMsg)), Data: strings.NewReader(searchMsg)})
modseq++
tc2.client.Select("statusbox")
tc.readuntagged(
imapclient.UntaggedStatus{Mailbox: "Inbox", Attrs: map[imapclient.StatusAttr]int64{imapclient.StatusMessages: 1, imapclient.StatusUIDNext: 6, imapclient.StatusUnseen: 1, imapclient.StatusHighestModSeq: int64(modseq - 2)}},
imapclient.UntaggedStatus{Mailbox: "Inbox", Attrs: map[imapclient.StatusAttr]int64{imapclient.StatusUIDValidity: 1, imapclient.StatusUnseen: 0, imapclient.StatusHighestModSeq: int64(modseq - 1)}},
)
tc.transactf("ok", "noop")
tc.xuntagged(
imapclient.UntaggedExists(2),
tc.untaggedFetch(2, 2, imapclient.FetchFlags{"newflag"}, imapclient.FetchModSeq(modseq)),
imapclient.UntaggedFlags{`\Seen`, `\Answered`, `\Flagged`, `\Deleted`, `\Draft`, `$Forwarded`, `$Junk`, `$NotJunk`, `$Phishing`, `$MDNSent`, `newflag`},
)
tc2.client.UIDStoreFlagsSet("2", true, `\Deleted`)
modseq++
tc2.client.Expunge()
modseq++
tc.transactf("ok", "noop")
if uidonly {
tc.xuntagged(
tc.untaggedFetch(2, 2, imapclient.FetchFlags{`\Deleted`}, imapclient.FetchModSeq(modseq-1)),
imapclient.UntaggedVanished{UIDs: xparseNumSet("2")},
)
} else {
tc.xuntagged(
tc.untaggedFetch(2, 2, imapclient.FetchFlags{`\Deleted`}, imapclient.FetchModSeq(modseq-1)),
imapclient.UntaggedExpunge(2),
)
}
// With Selected-Delayed, we should get events for selected mailboxes immediately when using IDLE.
tc2.client.UIDStoreFlagsSet("*", true, `\Answered`)
modseq++
tc2.client.Select("inbox")
tc2.client.UIDStoreFlagsClear("*", true, `\Seen`)
modseq++
tc2.client.Select("statusbox")
tc.readuntagged(
imapclient.UntaggedStatus{Mailbox: "Inbox", Attrs: map[imapclient.StatusAttr]int64{imapclient.StatusUIDValidity: 1, imapclient.StatusUnseen: 1, imapclient.StatusHighestModSeq: int64(modseq)}},
)
tc.conn.SetReadDeadline(time.Now().Add(3 * time.Second))
tc.cmdf("", "idle")
tc.readprefixline("+ ")
tc.readuntagged(tc.untaggedFetch(1, 1, imapclient.FetchFlags{`\Answered`}, imapclient.FetchModSeq(modseq-1)))
tc.writelinef("done")
tc.response("ok")
tc.conn.SetReadDeadline(time.Now().Add(30 * time.Second))
// If any event matches, we normally return it. But NONE prevents looking further.
tc.client.Unselect()
tc.transactf("ok", "notify set (mailboxes statusbox NONE) (personal (mailboxName))")
tc2.client.UIDStoreFlagsSet("*", true, `\Answered`) // Matches NONE, ignored.
//modseq++
tc2.client.Create("eventbox", nil)
//modseq++
tc.readuntagged(
imapclient.UntaggedList{Mailbox: "eventbox", Separator: '/', Flags: []string{`\Subscribed`}},
)
// Check we can return message contents.
tc.transactf("ok", "notify set (selected (messageNew (body[header] body[text]) messageExpunge))")
tc.client.Select("statusbox")
tc2.client.Append("statusbox", makeAppend(searchMsg))
// modseq++
offset := strings.Index(searchMsg, "\r\n\r\n")
tc.readuntagged(
imapclient.UntaggedExists(2),
tc.untaggedFetch(2, 3,
imapclient.FetchBody{
RespAttr: "BODY[HEADER]",
Section: "HEADER",
Body: searchMsg[:offset+4],
},
imapclient.FetchBody{
RespAttr: "BODY[TEXT]",
Section: "TEXT",
Body: searchMsg[offset+4:],
},
imapclient.FetchFlags(nil),
),
)
// If we encounter an error during fetch, an untagged NO is returned.
// We ask for the 2nd part of a message, and we add a message with just 1 part.
tc.transactf("ok", "notify set (selected (messageNew (body[2]) messageExpunge))")
tc2.client.Append("statusbox", makeAppend(exampleMsg))
// modseq++
tc.readuntagged(
imapclient.UntaggedExists(3),
imapclient.UntaggedResult{Status: "NO", Text: "generating notify fetch response: requested part does not exist"},
tc.untaggedFetchUID(3, 4),
)
// When adding new tests, uncomment modseq++ lines above.
}
func TestNotifyOverflow(t *testing.T) {
testNotifyOverflow(t, false)
}
func TestNotifyOverflowUIDOnly(t *testing.T) {
testNotifyOverflow(t, true)
}
func testNotifyOverflow(t *testing.T, uidonly bool) {
orig := store.CommPendingChangesMax
store.CommPendingChangesMax = 3
defer func() {
store.CommPendingChangesMax = orig
}()
defer mockUIDValidity()()
tc := start(t, uidonly)
defer tc.close()
tc.login("mjl@mox.example", password0)
tc.client.Select("inbox")
tc.transactf("ok", "noop")
tc2 := startNoSwitchboard(t, uidonly)
defer tc2.closeNoWait()
tc2.login("mjl@mox.example", password0)
tc2.client.Select("inbox")
// Generates 4 changes, crossing max 3.
tc2.client.Append("inbox", makeAppend(searchMsg))
tc2.client.Append("inbox", makeAppend(searchMsg))
tc.transactf("ok", "noop")
tc.xuntagged(imapclient.UntaggedResult{Status: "OK", Code: imapclient.CodeWord("NOTIFICATIONOVERFLOW"), Text: "out of sync after too many pending changes"})
// Won't be getting any more notifications until we enable them again with NOTIFY.
tc2.client.Append("inbox", makeAppend(searchMsg))
tc.transactf("ok", "noop")
tc.xuntagged()
// Enable notify again. Without uidonly, we won't get a notification because the
// message isn't known in the session.
tc.transactf("ok", "notify set (selected (messageNew messageExpunge flagChange))")
tc2.client.UIDStoreFlagsAdd("1", true, `\Seen`)
if uidonly {
tc.readuntagged(tc.untaggedFetch(1, 1, imapclient.FetchFlags{`\Seen`}))
} else {
tc.transactf("ok", "noop")
tc.xuntagged()
}
// Reselect to get the message visible in the session.
tc.client.Select("inbox")
tc2.client.UIDStoreFlagsClear("1", true, `\Seen`)
tc.transactf("ok", "noop")
tc.xuntagged(tc.untaggedFetch(1, 1, imapclient.FetchFlags(nil)))
// Trigger overflow for changes for "selected-delayed".
store.CommPendingChangesMax = 10
delayedMax := selectedDelayedChangesMax
selectedDelayedChangesMax = 1
defer func() {
selectedDelayedChangesMax = delayedMax
}()
tc.transactf("ok", "notify set (selected-delayed (messageNew messageExpunge flagChange))")
tc2.client.UIDStoreFlagsAdd("1", true, `\Seen`)
tc2.client.UIDStoreFlagsClear("1", true, `\Seen`)
tc.transactf("ok", "noop")
tc.xuntagged(imapclient.UntaggedResult{Status: "OK", Code: imapclient.CodeWord("NOTIFICATIONOVERFLOW"), Text: "out of sync after too many pending changes for selected mailbox"})
// Again, no new notifications until we select and enable again.
tc2.client.UIDStoreFlagsAdd("1", true, `\Seen`)
tc.transactf("ok", "noop")
tc.xuntagged()
tc.client.Select("inbox")
tc.transactf("ok", "notify set (selected-delayed (messageNew messageExpunge flagChange))")
tc2.client.UIDStoreFlagsClear("1", true, `\Seen`)
tc.transactf("ok", "noop")
tc.xuntagged(tc.untaggedFetch(1, 1, imapclient.FetchFlags(nil)))
}