]> git.giacomolli.uk - onechat/blobdiff - whatsapp_test.go
Reflow the comments of promptTools and terminal
[onechat] / whatsapp_test.go
index 38a7b8d765576a8294db3e5376f9d8af2026a18a..0ba27146bfb62d35c1991c33c58a82cc6dbef6de 100644 (file)
@@ -1,7 +1,10 @@
 package main
 
 import (
 package main
 
 import (
+       "crypto/sha256"
+       "encoding/hex"
        "errors"
        "errors"
+       "fmt"
        "net/http"
        "os"
        "path/filepath"
        "net/http"
        "os"
        "path/filepath"
@@ -317,7 +320,7 @@ func TestWhatsAppLongDisconnectionGivesOneNotice(t *testing.T) {
        whatsappTestSession(t, dir, true)
        clock := newTestClock()
        whatsapp, fake, _ := whatsappStartTest(t, dir, clock)
        whatsappTestSession(t, dir, true)
        clock := newTestClock()
        whatsapp, fake, _ := whatsappStartTest(t, dir, clock)
-       whatsapp.noticeDelay = 50 * time.Millisecond
+       whatsapp.noticeDelay = 300 * time.Millisecond
        socket, _ := daemonStartTestWithWhatsApp(t, newModelFake(t), nil, whatsapp)
        client := terminalStartTestClient(t, socket)
        client.WaitFor(t, "[connected to OneChat]")
        socket, _ := daemonStartTestWithWhatsApp(t, newModelFake(t), nil, whatsapp)
        client := terminalStartTestClient(t, socket)
        client.WaitFor(t, "[connected to OneChat]")
@@ -326,7 +329,7 @@ func TestWhatsAppLongDisconnectionGivesOneNotice(t *testing.T) {
        require.True(t, fake.Emit(&events.Connected{}))
        require.True(t, fake.Emit(&events.Disconnected{}))
        require.True(t, fake.Emit(&events.Connected{}))
        require.True(t, fake.Emit(&events.Connected{}))
        require.True(t, fake.Emit(&events.Disconnected{}))
        require.True(t, fake.Emit(&events.Connected{}))
-       time.Sleep(100 * time.Millisecond)
+       time.Sleep(400 * time.Millisecond)
        require.Equal(t, "[connected to OneChat]\n", client.Output())
 
        clock.now = clock.now.Add(time.Hour)
        require.Equal(t, "[connected to OneChat]\n", client.Output())
 
        clock.now = clock.now.Add(time.Hour)
@@ -334,7 +337,7 @@ func TestWhatsAppLongDisconnectionGivesOneNotice(t *testing.T) {
        require.True(t, fake.Emit(&events.Disconnected{}))
        client.WaitFor(t, "WhatsApp is disconnected since 2026-01-01 13:00. OneChat tries again.\n")
        require.True(t, fake.Emit(&events.Disconnected{}))
        require.True(t, fake.Emit(&events.Disconnected{}))
        client.WaitFor(t, "WhatsApp is disconnected since 2026-01-01 13:00. OneChat tries again.\n")
        require.True(t, fake.Emit(&events.Disconnected{}))
-       time.Sleep(100 * time.Millisecond)
+       time.Sleep(400 * time.Millisecond)
 
        require.True(t, fake.Emit(&events.Connected{}))
        client.WaitFor(t, "WhatsApp is connected again.\n")
 
        require.True(t, fake.Emit(&events.Connected{}))
        client.WaitFor(t, "WhatsApp is connected again.\n")
@@ -487,9 +490,13 @@ func TestWhatsAppPrivateBatchStartsATurnWithAnEmptyReply(t *testing.T) {
        client.WaitFor(t, "[connected to OneChat]")
        <-fake.connects
 
        client.WaitFor(t, "[connected to OneChat]")
        <-fake.connects
 
+       // The catch-up holds the batch open until its end, so the two messages
+       // form one batch also on a slow machine.
+       require.True(t, fake.Emit(&events.Connected{}))
        at := time.Date(2026, 1, 1, 12, 0, 0, 0, time.UTC)
        require.True(t, fake.Emit(whatsappTestMessage(whatsappTestAna, whatsappTestAna, "m1", "Are you at home?", at)))
        require.True(t, fake.Emit(whatsappTestMessage(whatsappTestAna, whatsappTestOwn, "m2", "Yes", at)))
        at := time.Date(2026, 1, 1, 12, 0, 0, 0, time.UTC)
        require.True(t, fake.Emit(whatsappTestMessage(whatsappTestAna, whatsappTestAna, "m1", "Are you at home?", at)))
        require.True(t, fake.Emit(whatsappTestMessage(whatsappTestAna, whatsappTestOwn, "m2", "Yes", at)))
+       require.True(t, fake.Emit(&events.OfflineSyncCompleted{}))
 
        text := "[WhatsApp] Ana Souza, private chat 15550002222@s.whatsapp.net, Thursday 2026-01-01\n12:00 Ana Souza: Are you at home?\n12:00 You: Yes\n" + whatsappBatchEmptyReply
        client.WaitFor(t, text+"\n[working]\n[done]\n")
 
        text := "[WhatsApp] Ana Souza, private chat 15550002222@s.whatsapp.net, Thursday 2026-01-01\n12:00 Ana Souza: Are you at home?\n12:00 You: Yes\n" + whatsappBatchEmptyReply
        client.WaitFor(t, text+"\n[working]\n[done]\n")
@@ -498,7 +505,7 @@ func TestWhatsAppPrivateBatchStartsATurnWithAnEmptyReply(t *testing.T) {
        require.Equal(t, []string{text}, whatsappTestLogTexts(t, memory))
        require.Empty(t, telegram.Sent())
        require.Eventually(t, func() bool {
        require.Equal(t, []string{text}, whatsappTestLogTexts(t, memory))
        require.Empty(t, telegram.Sent())
        require.Eventually(t, func() bool {
-               return len(whatsapp.batches.Closed()) == 0
+               return len(whatsapp.state.Closed()) == 0
        }, 10*time.Second, time.Millisecond)
 }
 
        }, 10*time.Second, time.Millisecond)
 }
 
@@ -563,7 +570,7 @@ func TestWhatsAppGroupTurns(t *testing.T) {
                        socket, memory := daemonStartTestWithWhatsApp(t, server, nil, whatsapp)
                        client := terminalStartTestClient(t, socket)
                        client.WaitFor(t, "[connected to OneChat]")
                        socket, memory := daemonStartTestWithWhatsApp(t, server, nil, whatsapp)
                        client := terminalStartTestClient(t, socket)
                        client.WaitFor(t, "[connected to OneChat]")
-                       <-fake.connects
+                       whatsappTestConnect(t, fake)
 
                        event := whatsappTestMessage(whatsappTestFamily, whatsappTestBruno, "m1", "Who brings the cake?", time.Date(2026, 1, 1, 12, 0, 0, 0, time.UTC))
                        event.Info.PushName = "Bruno Lima"
 
                        event := whatsappTestMessage(whatsappTestFamily, whatsappTestBruno, "m1", "Who brings the cake?", time.Date(2026, 1, 1, 12, 0, 0, 0, time.UTC))
                        event.Info.PushName = "Bruno Lima"
@@ -652,8 +659,8 @@ func TestWhatsAppTakesOnlyText(t *testing.T) {
                        event := whatsappTestMessage(whatsappTestAna, whatsappTestAna, "m1", "hi", at)
                        tc.change(event)
                        require.True(t, whatsapp.handle(event))
                        event := whatsappTestMessage(whatsappTestAna, whatsappTestAna, "m1", "hi", at)
                        tc.change(event)
                        require.True(t, whatsapp.handle(event))
-                       require.NoError(t, whatsapp.batches.CloseAll())
-                       require.Empty(t, whatsapp.batches.Closed())
+                       require.NoError(t, whatsapp.state.CloseAll())
+                       require.Empty(t, whatsapp.state.Closed())
                })
        }
 }
                })
        }
 }
@@ -666,7 +673,412 @@ func whatsappStartTestLinked(t *testing.T) (*WhatsApp, *WhatsAppFake) {
        dir := t.TempDir()
        whatsappTestSession(t, dir, true)
        whatsapp, fake, _ := whatsappStartTest(t, dir, newTestClock())
        dir := t.TempDir()
        whatsappTestSession(t, dir, true)
        whatsapp, fake, _ := whatsappStartTest(t, dir, newTestClock())
-       whatsapp.batches.quiet = 50 * time.Millisecond
+       whatsapp.state.quiet = 50 * time.Millisecond
 
        return whatsapp, fake
 }
 
        return whatsapp, fake
 }
+
+func TestWhatsAppCatchupGivesOneTurn(t *testing.T) {
+       whatsapp, fake := whatsappStartTestLinked(t)
+       server := newModelFake(t)
+       socket, memory := daemonStartTestWithWhatsApp(t, server, nil, whatsapp)
+       client := terminalStartTestClient(t, socket)
+       client.WaitFor(t, "[connected to OneChat]")
+       <-fake.connects
+
+       require.True(t, fake.Emit(&events.Connected{}))
+       at := time.Date(2026, 1, 1, 8, 0, 0, 0, time.UTC)
+       for index, event := range []*events.Message{
+               whatsappTestMessage(whatsappTestAna, whatsappTestAna, "m1", "Good morning", at),
+               whatsappTestMessage(whatsappTestBruno, whatsappTestBruno, "m2", "Call me", at.Add(time.Hour)),
+               whatsappTestMessage(whatsappTestAna, whatsappTestAna, "m3", "Are you there?", at.Add(2*time.Hour)),
+       } {
+               event.Info.PushName = []string{"Ana", "Bruno", "Ana"}[index]
+               require.True(t, fake.Emit(event))
+       }
+
+       time.Sleep(100 * time.Millisecond)
+       require.Zero(t, memory.Len())
+
+       require.True(t, fake.Emit(&events.OfflineSyncCompleted{}))
+       client.WaitFor(t, "[done]")
+       require.Equal(t, []string{
+               "[WhatsApp] Ana, private chat 15550002222@s.whatsapp.net, Thursday 2026-01-01\n08:00 Ana: Good morning\n" + whatsappBatchEmptyReply,
+               "[WhatsApp] Bruno, private chat 15550003333@s.whatsapp.net, Thursday 2026-01-01\n09:00 Bruno: Call me\n" + whatsappBatchEmptyReply,
+               "[WhatsApp] Ana, private chat 15550002222@s.whatsapp.net, Thursday 2026-01-01\n10:00 Ana: Are you there?\n" + whatsappBatchEmptyReply,
+       }, whatsappTestLogTexts(t, memory)[:3])
+
+       time.Sleep(100 * time.Millisecond)
+       require.Equal(t, 1, server.Calls())
+       for _, text := range []string{"Good morning", "Call me", "Are you there?"} {
+               require.Contains(t, string(server.Call(0).raw), text)
+       }
+}
+
+func TestWhatsAppCatchupEndsAfterItsLimit(t *testing.T) {
+       whatsapp, fake := whatsappStartTestLinked(t)
+       whatsapp.catchupLimit = 100 * time.Millisecond
+       socket, memory := daemonStartTestWithWhatsApp(t, newModelFake(t), nil, whatsapp)
+       client := terminalStartTestClient(t, socket)
+       client.WaitFor(t, "[connected to OneChat]")
+       <-fake.connects
+
+       require.True(t, fake.Emit(&events.Connected{}))
+       require.True(t, fake.Emit(whatsappTestMessage(whatsappTestAna, whatsappTestOwn, "m1", "On my way.", time.Date(2026, 1, 1, 12, 0, 0, 0, time.UTC))))
+       client.WaitFor(t, "12:00 You: On my way.")
+       require.Len(t, whatsappTestLogTexts(t, memory), 1)
+}
+
+func TestWhatsAppStateOfTheStateFileWaitForTheCatchup(t *testing.T) {
+       dir := t.TempDir()
+       whatsappTestSession(t, dir, true)
+       before, _, _ := whatsappStartTest(t, dir, newTestClock())
+       _, err := before.state.Add(whatsappTestChat, WhatsAppMessage{
+               ID:     "m1",
+               Sender: "Ana Souza",
+               Time:   time.Date(2026, 1, 1, 12, 0, 0, 0, time.UTC),
+               Text:   "Did you see my message?",
+       }, time.Now().Add(-time.Hour))
+       require.NoError(t, err)
+
+       whatsapp, fake, _ := whatsappStartTest(t, dir, newTestClock())
+       socket, memory := daemonStartTestWithWhatsApp(t, newModelFake(t), nil, whatsapp)
+       client := terminalStartTestClient(t, socket)
+       client.WaitFor(t, "[connected to OneChat]")
+       <-fake.connects
+
+       time.Sleep(100 * time.Millisecond)
+       require.Zero(t, memory.Len())
+
+       require.True(t, fake.Emit(&events.Connected{}))
+       require.True(t, fake.Emit(&events.OfflineSyncCompleted{}))
+       client.WaitFor(t, "12:00 Ana Souza: Did you see my message?")
+       client.WaitFor(t, "[done]")
+}
+
+// whatsappTestConnect waits for the connection of the daemon and gives it the
+// events of a connection with an empty catch-up.
+func whatsappTestConnect(t *testing.T, fake *WhatsAppFake) {
+       t.Helper()
+
+       <-fake.connects
+       require.True(t, fake.Emit(&events.Connected{}))
+       require.True(t, fake.Emit(&events.OfflineSyncCompleted{}))
+}
+
+func TestWhatsAppFindMatchesNamesWithNoRegardToCaseAndAccents(t *testing.T) {
+       whatsapp, fake := whatsappStartTestLinked(t)
+       fake.groups = []*types.GroupInfo{
+               {
+                       JID: whatsappTestFamily,
+                       GroupName: types.GroupName{
+                               Name: "Família Souza",
+                       },
+               },
+       }
+
+       whatsappTestContacts(t, whatsapp)
+       daemonStartTestWithWhatsApp(t, newModelFake(t), nil, whatsapp)
+       whatsappTestConnect(t, fake)
+
+       testCases := []struct {
+               name   string
+               query  string
+               answer string
+       }{
+               {
+                       name:   "no accent finds an accent",
+                       query:  "joao",
+                       answer: "15550004444@s.whatsapp.net | João Silva | contact",
+               },
+               {
+                       name:   "a part of a name finds contacts and groups",
+                       query:  "SOUZA",
+                       answer: "15550002222@s.whatsapp.net | Ana Souza | contact\n120363000000000001@g.us | Família Souza | group",
+               },
+               {
+                       name:   "a business name",
+                       query:  "bakery",
+                       answer: "15550005555@s.whatsapp.net | Corner Bakery | contact",
+               },
+               {
+                       name:   "no match",
+                       query:  "Zed",
+                       answer: "No contact or group has a name with \"Zed\".",
+               },
+       }
+
+       for _, tc := range testCases {
+               t.Run(tc.name, func(t *testing.T) {
+                       answer, err := whatsapp.Find(t.Context(), tc.query)
+                       require.NoError(t, err)
+                       require.Equal(t, tc.answer, answer)
+               })
+       }
+}
+
+func TestWhatsAppFindGivesAtMostTwentyMatches(t *testing.T) {
+       whatsapp, _ := whatsappStartTestLinked(t)
+       for index := range 25 {
+               jid := types.NewJID(fmt.Sprintf("1555001%04d", index), types.DefaultUserServer)
+               require.NoError(t, whatsapp.device.Contacts.PutContactName(t.Context(), jid, "", fmt.Sprintf("Member %02d", index)))
+       }
+
+       answer, err := whatsapp.Find(t.Context(), "member")
+       require.NoError(t, err)
+
+       lines := strings.Split(answer, "\n")
+       require.Len(t, lines, 22)
+       require.Equal(t, "15550010000@s.whatsapp.net | Member 00 | contact", lines[0])
+       require.Equal(t, "5 more: give a longer part of the name.", lines[20])
+       require.Equal(t, "The groups are not in this answer, because WhatsApp is disconnected.", lines[21])
+}
+
+func TestWhatsAppFindBeforeTheNamesArrive(t *testing.T) {
+       whatsapp, fake := whatsappStartTestLinked(t)
+       daemonStartTestWithWhatsApp(t, newModelFake(t), nil, whatsapp)
+       whatsappTestConnect(t, fake)
+
+       answer, err := whatsapp.Find(t.Context(), "ana")
+       require.NoError(t, err)
+       require.Equal(t, whatsappNamesNotReady, answer)
+}
+
+func TestWhatsAppFindWithoutALink(t *testing.T) {
+       whatsapp, _, _ := whatsappStartTest(t, t.TempDir(), newTestClock())
+
+       answer, err := whatsapp.Find(t.Context(), "ana")
+       require.NoError(t, err)
+       require.Equal(t, whatsappNotLinked, answer)
+}
+
+func TestAgentFindsAWhatsAppContact(t *testing.T) {
+       whatsapp, fake := whatsappStartTestLinked(t)
+       whatsappTestContacts(t, whatsapp)
+       server := newModelFake(t)
+       server.reply = func(w http.ResponseWriter, call ModelFakeCall) {
+               if call.number == 0 {
+                       modelWriteEvents(w, modelCompletedEvent([]any{modelFunctionCallItem("fc_1", "call_1", "whatsapp_find", `{"name":"ana"}`)}, 100, 0, 5))
+                       return
+               }
+
+               modelWriteEvents(w, modelCompletedEvent([]any{modelMessageItem("Found Ana.")}, 100, 0, 5))
+       }
+
+       socket, _ := daemonStartTestWithWhatsApp(t, server, nil, whatsapp)
+       client := terminalStartTestClient(t, socket)
+       whatsappTestConnect(t, fake)
+
+       client.Type("Find Ana on WhatsApp.")
+       client.WaitFor(t, "[result] 15550002222@s.whatsapp.net | Ana Souza | contact\nFound Ana.\n[done]")
+}
+
+func TestSubagentHasNoWhatsAppTools(t *testing.T) {
+       box := &Toolbox{}
+       require.Equal(t, `error: unknown tool "whatsapp_find"`, box.run(t.Context(), "whatsapp_find", `{"name":"ana"}`))
+       require.Equal(t, `error: unknown tool "whatsapp_send"`, box.run(t.Context(), "whatsapp_send", `{"id":"a","chat":"15550002222@s.whatsapp.net","text":"hi"}`))
+}
+
+// whatsappTestContacts puts the contacts of the tests into the session of
+// whatsapp: Ana Souza, Joao Silva with an accent, a business, and the user.
+func whatsappTestContacts(t *testing.T, whatsapp *WhatsApp) {
+       t.Helper()
+
+       contacts := whatsapp.device.Contacts
+       require.NoError(t, contacts.PutContactName(t.Context(), whatsappTestAna, "Ana", "Ana Souza"))
+       require.NoError(t, contacts.PutContactName(t.Context(), types.NewJID("15550004444", types.DefaultUserServer), "João", "João Silva"))
+       _, _, err := contacts.PutBusinessName(t.Context(), types.NewJID("15550005555", types.DefaultUserServer), "Corner Bakery")
+       require.NoError(t, err)
+       require.NoError(t, contacts.PutContactName(t.Context(), whatsappTestOwn, "Me", "Me Souza"))
+}
+
+func TestWhatsAppSendSendsOnceForEachID(t *testing.T) {
+       whatsapp, fake := whatsappStartTestLinked(t)
+       whatsappTestContacts(t, whatsapp)
+       daemonStartTestWithWhatsApp(t, newModelFake(t), nil, whatsapp)
+       whatsappTestConnect(t, fake)
+
+       answer, err := whatsapp.Send(t.Context(), "keys", whatsappTestAna.String(), "The keys are under the mat.")
+       require.NoError(t, err)
+       require.Equal(t, "Sent to Ana Souza at 12:05.", answer)
+
+       answer, err = whatsapp.Send(t.Context(), "keys", whatsappTestAna.String(), "The keys are under the mat.")
+       require.NoError(t, err)
+       require.Equal(t, "Sent to Ana Souza at 12:05. This is the answer of the first call with this id: nothing was sent again.", answer)
+
+       _, err = whatsapp.Send(t.Context(), "keys", whatsappTestAna.String(), "Another text.")
+       require.EqualError(t, err, "the id keys belongs to another message: give a new id for each message")
+
+       require.Equal(t, []WhatsAppFakeSend{
+               {
+                       to:   whatsappTestAna.String(),
+                       text: "The keys are under the mat.",
+                       id:   "MSG1",
+               },
+       }, fake.Sent())
+
+       again, err := openWhatsAppState(filepath.Join(whatsapp.dir, whatsappStateFileName), whatsappBatchQuiet, whatsappBatchWindow)
+       require.NoError(t, err)
+
+       record, found := again.Send("keys")
+       require.True(t, found)
+       require.Equal(t, whatsappSent, record.State)
+       require.Equal(t, "MSG1", record.MessageID)
+}
+
+func TestWhatsAppSendToAGroup(t *testing.T) {
+       whatsapp, fake := whatsappStartTestLinked(t)
+       fake.groups = []*types.GroupInfo{
+               {
+                       JID: whatsappTestFamily,
+                       GroupName: types.GroupName{
+                               Name: "Family",
+                       },
+               },
+       }
+
+       daemonStartTestWithWhatsApp(t, newModelFake(t), nil, whatsapp)
+       whatsappTestConnect(t, fake)
+
+       answer, err := whatsapp.Send(t.Context(), "cake", whatsappTestFamily.String(), "I bring the cake.")
+       require.NoError(t, err)
+       require.Equal(t, "Sent to Family at 12:05.", answer)
+}
+
+func TestWhatsAppSendThatFails(t *testing.T) {
+       whatsapp, fake := whatsappStartTestLinked(t)
+       fake.sendErr = errors.New("server error for " + whatsappTestNumber)
+       daemonStartTestWithWhatsApp(t, newModelFake(t), nil, whatsapp)
+       whatsappTestConnect(t, fake)
+
+       for range 2 {
+               answer, err := whatsapp.Send(t.Context(), "keys", whatsappTestAna.String(), "hi")
+               require.NoError(t, err)
+               require.True(t, strings.HasPrefix(answer, "The send failed: server error for OWN."), answer)
+       }
+
+       require.Len(t, fake.Sent(), 1)
+}
+
+func TestWhatsAppSendCutByAStop(t *testing.T) {
+       whatsapp, fake := whatsappStartTestLinked(t)
+       daemonStartTestWithWhatsApp(t, newModelFake(t), nil, whatsapp)
+       whatsappTestConnect(t, fake)
+
+       digest := sha256.Sum256([]byte("hi"))
+       require.NoError(t, whatsapp.state.PutSend(WhatsAppSend{
+               ID:     "keys",
+               Chat:   whatsappTestAna.String(),
+               Digest: hex.EncodeToString(digest[:]),
+               State:  whatsappSending,
+       }))
+
+       answer, err := whatsapp.Send(t.Context(), "keys", whatsappTestAna.String(), "hi")
+       require.NoError(t, err)
+       require.Contains(t, answer, "its result is unknown")
+       require.Empty(t, fake.Sent())
+}
+
+func TestWhatsAppSendRefuses(t *testing.T) {
+       testCases := []struct {
+               name string
+               id   string
+               chat string
+               text string
+               err  string
+       }{
+               {
+                       name: "no id",
+                       id:   " ",
+                       chat: whatsappTestAna.String(),
+                       text: "hi",
+                       err:  "the id must have 1 to 100 bytes",
+               },
+               {
+                       name: "no text",
+                       id:   "a",
+                       chat: whatsappTestAna.String(),
+                       text: "",
+                       err:  "the text must have 1 to 65536 bytes",
+               },
+               {
+                       name: "a name for a chat",
+                       id:   "a",
+                       chat: "Ana Souza",
+                       text: "hi",
+                       err:  `"Ana Souza" is not the ID of a WhatsApp chat: find the ID with whatsapp_find`,
+               },
+               {
+                       name: "a status broadcast",
+                       id:   "a",
+                       chat: types.StatusBroadcastJID.String(),
+                       text: "hi",
+                       err:  `"status@broadcast" is not a private chat or a group`,
+               },
+               {
+                       name: "the chat of the user",
+                       id:   "a",
+                       chat: whatsappTestOwn.String(),
+                       text: "hi",
+                       err:  "this is the chat of the user with itself: send to another chat",
+               },
+       }
+
+       whatsapp, fake := whatsappStartTestLinked(t)
+       daemonStartTestWithWhatsApp(t, newModelFake(t), nil, whatsapp)
+       whatsappTestConnect(t, fake)
+
+       for _, tc := range testCases {
+               t.Run(tc.name, func(t *testing.T) {
+                       _, err := whatsapp.Send(t.Context(), tc.id, tc.chat, tc.text)
+                       require.EqualError(t, err, tc.err)
+               })
+       }
+
+       require.Empty(t, fake.Sent())
+}
+
+func TestWhatsAppSendWhileDisconnected(t *testing.T) {
+       whatsapp, fake := whatsappStartTestLinked(t)
+       daemonStartTestWithWhatsApp(t, newModelFake(t), nil, whatsapp)
+       whatsappTestConnect(t, fake)
+       require.True(t, fake.Emit(&events.Disconnected{}))
+
+       _, err := whatsapp.Send(t.Context(), "keys", whatsappTestAna.String(), "hi")
+       require.EqualError(t, err, "WhatsApp is disconnected, so nothing was sent: try again later")
+
+       require.True(t, fake.Emit(&events.Connected{}))
+       answer, err := whatsapp.Send(t.Context(), "keys", whatsappTestAna.String(), "hi")
+       require.NoError(t, err)
+       require.Equal(t, "Sent to +15550002222 at 12:05.", answer)
+}
+
+func TestWhatsAppSendWithoutALink(t *testing.T) {
+       whatsapp, _, _ := whatsappStartTest(t, t.TempDir(), newTestClock())
+
+       answer, err := whatsapp.Send(t.Context(), "keys", whatsappTestAna.String(), "hi")
+       require.NoError(t, err)
+       require.Equal(t, whatsappNotLinked, answer)
+}
+
+func TestAgentSendsAWhatsAppMessage(t *testing.T) {
+       whatsapp, fake := whatsappStartTestLinked(t)
+       whatsappTestContacts(t, whatsapp)
+       server := newModelFake(t)
+       server.reply = func(w http.ResponseWriter, call ModelFakeCall) {
+               if call.number == 0 {
+                       modelWriteEvents(w, modelCompletedEvent([]any{modelFunctionCallItem("fc_1", "call_1", "whatsapp_send", `{"id":"keys","chat":"15550002222@s.whatsapp.net","text":"The keys are under the mat."}`)}, 100, 0, 5))
+                       return
+               }
+
+               modelWriteEvents(w, modelCompletedEvent([]any{modelMessageItem("Sent.")}, 100, 0, 5))
+       }
+
+       socket, _ := daemonStartTestWithWhatsApp(t, server, nil, whatsapp)
+       client := terminalStartTestClient(t, socket)
+       whatsappTestConnect(t, fake)
+
+       client.Type("Tell Ana that the keys are under the mat.")
+       client.WaitFor(t, "[result] Sent to Ana Souza at 12:05.\nSent.\n[done]")
+       require.Len(t, fake.Sent(), 1)
+}