create silence with specific matchers

matrix_alertbot/alert.py

@@ -1,7 +1,8 @@
 from __future__ import annotations
 
 import logging
-from typing import Dict
+import re
+from typing import Any, Dict
 
 logger = logging.getLogger(__name__)
 

matrix_alertbot/alertmanager.py

@@ -1,19 +1,21 @@
 from __future__ import annotations
 
-import datetime
+from datetime import datetime, timedelta
 from typing import Dict, List
 
 import aiohttp
-import pytimeparse
+import pytimeparse2
 from aiohttp import ClientError
 from aiohttp_prometheus_exporter.trace import PrometheusTraceConfig
 from diskcache import Cache
 
 from matrix_alertbot.errors import (
     AlertmanagerServerError,
+    AlertMismatchError,
     AlertNotFoundError,
     SilenceNotFoundError,
 )
+from matrix_alertbot.matcher import AbstractAlertMatcher
 
 
 class AlertmanagerClient:
@@ -39,23 +41,25 @@ class AlertmanagerClient:
         alerts = await self.get_alerts()
         return self._find_alert(fingerprint, alerts)
 
-    async def create_silence(self, fingerprint: str, duration: str, user: str) -> str:
+    async def create_silence(
+        self,
+        fingerprint: str,
+        duration: str,
+        user: str,
+        matchers: List[AbstractAlertMatcher],
+    ) -> str:
         alert = await self.get_alert(fingerprint)
-        labels = alert["labels"]
 
-        matchers = []
+        self._match_alert(alert, matchers)
-        for label_name, label_value in labels.items():
+        matchers_json = {m.label: m.value for m in matchers}
-            matchers.append(
-                {"name": label_name, "value": label_value, "isRegex": False}
-            )
 
-        start_time = datetime.datetime.now()
+        start_time = datetime.now()
-        duration_seconds = pytimeparse.parse(duration)
+        duration_seconds = pytimeparse2.parse(duration)
-        duration_delta = datetime.timedelta(seconds=duration_seconds)
+        duration_delta = timedelta(seconds=duration_seconds)
         end_time = start_time + duration_delta
 
         silence = {
-            "matchers": matchers,
+            "matchers": matchers_json,
             "startsAt": start_time.isoformat(),
             "endsAt": end_time.isoformat(),
             "createdBy": user,
@@ -106,3 +110,18 @@ class AlertmanagerClient:
             if alert["fingerprint"] == fingerprint:
                 return alert
         raise AlertNotFoundError(f"Cannot find alert with fingerprint {fingerprint}")
+
+    @staticmethod
+    def _match_alert(alert: Dict, matchers: List[AbstractAlertMatcher]) -> None:
+        labels = alert["labels"]
+        for matcher in matchers:
+            if matcher.label not in labels:
+                labels_text = ", ".join(labels)
+                raise AlertMismatchError(
+                    f"Cannot find label {matcher.label} in alert labels: {labels_text}"
+                )
+
+            if not matcher.match(labels):
+                raise AlertMismatchError(
+                    f"Alert with label {matcher} does not match {labels[matcher.label]}"
+                )

matrix_alertbot/command.py

@@ -1,4 +1,5 @@
 import logging
+from typing import List
 
 from diskcache import Cache
 from nio import AsyncClient, MatrixRoom, RoomMessageText
@@ -7,6 +8,11 @@ from matrix_alertbot.alertmanager import AlertmanagerClient
 from matrix_alertbot.chat_functions import react_to_event, send_text_to_room
 from matrix_alertbot.config import Config
 from matrix_alertbot.errors import AlertmanagerError
+from matrix_alertbot.matcher import (
+    AbstractAlertMatcher,
+    AlertMatcher,
+    AlertRegexMatcher,
+)
 
 logger = logging.getLogger(__name__)
 
@@ -61,10 +67,25 @@ class Command:
 
     async def _ack(self) -> None:
         """Acknowledge an alert and silence it for a certain duration in Alertmanager"""
-        if len(self.args) > 0:
+        matchers: List[AbstractAlertMatcher] = []
-            duration = " ".join(self.args)
+        durations = []
+        for arg in self.args:
+            if "=~" in arg:
+                label, regex = arg.split("=~")
+                regex_matcher = AlertRegexMatcher(label, regex)
+                matchers.append(regex_matcher)
+            elif "=" in arg:
+                label, value = arg.split("=")
+                matcher = AlertMatcher(label, value)
+                matchers.append(matcher)
+            else:
+                durations.append(arg)
+
+        if len(durations) > 0:
+            duration = " ".join(durations)
         else:
             duration = "1d"
+
         logger.debug(
             f"Receiving a command to create a silence for a duration of {duration} | "
             f"{self.room.user_name(self.event.sender)}: {self.event.body}"
@@ -86,7 +107,10 @@ class Command:
             )
             try:
                 await self.alertmanager.create_silence(
-                    alert_fingerprint, duration, self.room.user_name(self.event.sender)
+                    alert_fingerprint,
+                    duration,
+                    self.room.user_name(self.event.sender),
+                    matchers,
                 )
                 count_created_silences += 1
             except AlertmanagerError as e:

matrix_alertbot/errors.py

@@ -37,6 +37,12 @@ class AlertNotFoundError(AlertmanagerError):
     pass
 
 
+class AlertMismatchError(AlertmanagerError):
+    """An error encountered when alert's labels don't match."""
+
+    pass
+
+
 class SilenceNotFoundError(AlertmanagerError):
     """An error encountered when a silence cannot be found in Alertmanager."""
 

matrix_alertbot/matcher.py

@@ -0,0 +1,35 @@
+import re
+from typing import Any, Dict
+
+
+class AbstractAlertMatcher:
+    def __init__(self, label: str, value: str, op: str) -> None:
+        self.label = label
+        self.value = value
+        self._op = op
+
+    def match(self, labels: Dict[str, str]) -> bool:
+        raise NotImplementedError
+
+    def __str__(self) -> str:
+        return f"{self.label}{self._op}{self.value}"
+
+    def __eq__(self, matcher: Any) -> bool:
+        return self.label == matcher.label and self.value == matcher.value
+
+
+class AlertMatcher(AbstractAlertMatcher):
+    def __init__(self, label: str, value: str) -> None:
+        super().__init__(label, value, "=")
+
+    def match(self, labels: Dict[str, str]) -> bool:
+        return self.label in labels and self.value == labels[self.label]
+
+
+class AlertRegexMatcher(AbstractAlertMatcher):
+    def __init__(self, label: str, regex: str) -> None:
+        super().__init__(label, regex, "=~")
+        self.regex = re.compile(regex)
+
+    def match(self, labels: Dict[str, str]) -> bool:
+        return self.label in labels and self.regex.match(labels[self.label]) is not None

matrix_alertbot/webhook.py

@@ -11,7 +11,7 @@ from nio import AsyncClient, SendRetryError
 
 from matrix_alertbot.chat_functions import send_text_to_room
 from matrix_alertbot.config import Config
-from matrix_alertbot.storage import Alert
+from matrix_alertbot.alert import Alert
 
 logger = logging.getLogger(__name__)
 

setup.py

@@ -31,7 +31,7 @@ setup(
         "diskcache>=5.4.0",
         "matrix-nio>=0.19.0",
         "Markdown>=3.3.7",
-        "pytimeparse>=1.1.8",
+        "pytimeparse2>=1.4.0",
         "PyYAML>=6.0",
         "typing-extensions>=4.3.0",
     ],

tests/test_alertmanager.py

@@ -2,8 +2,9 @@ from __future__ import annotations
 
 import json
 import unittest
-from typing import Any
+from datetime import datetime
-from unittest.mock import MagicMock, Mock
+from typing import Any, List
+from unittest.mock import MagicMock, Mock, patch
 
 import aiohttp
 import aiohttp.test_utils
@@ -14,9 +15,23 @@ from diskcache import Cache
 from matrix_alertbot.alertmanager import AlertmanagerClient
 from matrix_alertbot.errors import (
     AlertmanagerServerError,
+    AlertMismatchError,
     AlertNotFoundError,
     SilenceNotFoundError,
 )
+from matrix_alertbot.matcher import (
+    AbstractAlertMatcher,
+    AlertMatcher,
+    AlertRegexMatcher,
+)
+
+
+class FakeTimeDelta:
+    def __init__(self, seconds: int) -> None:
+        self.seconds = seconds
+
+    def __radd__(self, other: Any) -> datetime:
+        return datetime.utcfromtimestamp(self.seconds)
 
 
 class AbstractFakeAlertmanagerServer:
@@ -31,6 +46,7 @@ class AbstractFakeAlertmanagerServer:
         )
 
         self.runner = web.AppRunner(self.app)
+        self.response = None
 
     async def __aenter__(self) -> AbstractFakeAlertmanagerServer:
         await self.start()
@@ -125,7 +141,7 @@ class AlertmanagerClientTestCase(unittest.IsolatedAsyncioTestCase):
             alertmanager = AlertmanagerClient(
                 f"http://localhost:{port}", self.fake_cache
             )
-            async with aiotools.closing_async(alertmanager) as alertmanager:
+            async with aiotools.closing_async(alertmanager):
                 alerts = await alertmanager.get_alerts()
                 self.assertEqual(
                     [
@@ -152,7 +168,7 @@ class AlertmanagerClientTestCase(unittest.IsolatedAsyncioTestCase):
             alertmanager = AlertmanagerClient(
                 f"http://localhost:{port}", self.fake_cache
             )
-            async with aiotools.closing_async(alertmanager) as alertmanager:
+            async with aiotools.closing_async(alertmanager):
                 alerts = await alertmanager.get_alerts()
                 self.assertEqual([], alerts)
 
@@ -162,7 +178,7 @@ class AlertmanagerClientTestCase(unittest.IsolatedAsyncioTestCase):
             alertmanager = AlertmanagerClient(
                 f"http://localhost:{port}", self.fake_cache
             )
-            async with aiotools.closing_async(alertmanager) as alertmanager:
+            async with aiotools.closing_async(alertmanager):
                 with self.assertRaises(AlertmanagerServerError):
                     await alertmanager.get_alerts()
 
@@ -172,7 +188,7 @@ class AlertmanagerClientTestCase(unittest.IsolatedAsyncioTestCase):
             alertmanager = AlertmanagerClient(
                 f"http://localhost:{port}", self.fake_cache
             )
-            async with aiotools.closing_async(alertmanager) as alertmanager:
+            async with aiotools.closing_async(alertmanager):
                 alert = await alertmanager.get_alert("fingerprint1")
                 self.assertEqual(
                     {
@@ -189,7 +205,7 @@ class AlertmanagerClientTestCase(unittest.IsolatedAsyncioTestCase):
             alertmanager = AlertmanagerClient(
                 f"http://localhost:{port}", self.fake_cache
             )
-            async with aiotools.closing_async(alertmanager) as alertmanager:
+            async with aiotools.closing_async(alertmanager):
                 with self.assertRaises(AlertNotFoundError):
                     await alertmanager.get_alert("fingerprint1")
 
@@ -199,21 +215,145 @@ class AlertmanagerClientTestCase(unittest.IsolatedAsyncioTestCase):
             alertmanager = AlertmanagerClient(
                 f"http://localhost:{port}", self.fake_cache
             )
-            async with aiotools.closing_async(alertmanager) as alertmanager:
+            async with aiotools.closing_async(alertmanager):
                 with self.assertRaises(AlertmanagerServerError):
                     await alertmanager.get_alert("fingerprint1")
 
-    async def test_create_silence_happy(self) -> None:
+    @patch("matrix_alertbot.alertmanager.timedelta", side_effect=FakeTimeDelta)
+    async def test_create_silence_without_matchers(self, fake_timedelta: Mock) -> None:
         async with FakeAlertmanagerServer() as fake_alertmanager_server:
             port = fake_alertmanager_server.port
             alertmanager = AlertmanagerClient(
                 f"http://localhost:{port}", self.fake_cache
             )
-            async with aiotools.closing_async(alertmanager) as alertmanager:
+            async with aiotools.closing_async(alertmanager):
                 silence = await alertmanager.create_silence(
-                    "fingerprint1", "1d", "user"
+                    "fingerprint1", "1d", "user", []
                 )
+
         self.assertEqual("silence1", silence)
+        fake_timedelta.assert_called_once_with(seconds=86400)
+
+    @patch("matrix_alertbot.alertmanager.timedelta", side_effect=FakeTimeDelta)
+    async def test_create_silence_with_complex_duration(
+        self, fake_timedelta: Mock
+    ) -> None:
+        async with FakeAlertmanagerServer() as fake_alertmanager_server:
+            port = fake_alertmanager_server.port
+            alertmanager = AlertmanagerClient(
+                f"http://localhost:{port}", self.fake_cache
+            )
+            async with aiotools.closing_async(alertmanager):
+                silence = await alertmanager.create_silence(
+                    "fingerprint1", "1w 3d", "user", []
+                )
+
+        self.assertEqual("silence1", silence)
+        fake_timedelta.assert_called_once_with(seconds=864000)
+
+    @patch("matrix_alertbot.alertmanager.timedelta", side_effect=FakeTimeDelta)
+    async def test_create_silence_with_matchers(self, fake_timedelta: Mock) -> None:
+        matchers: List[AbstractAlertMatcher] = [
+            AlertMatcher(label="alertname", value="alert1")
+        ]
+
+        async with FakeAlertmanagerServer() as fake_alertmanager_server:
+            port = fake_alertmanager_server.port
+            alertmanager = AlertmanagerClient(
+                f"http://localhost:{port}", self.fake_cache
+            )
+            async with aiotools.closing_async(alertmanager):
+                silence = await alertmanager.create_silence(
+                    "fingerprint1",
+                    "1d",
+                    "user",
+                    matchers,
+                )
+
+        self.assertEqual("silence1", silence)
+        fake_timedelta.assert_called_once_with(seconds=86400)
+
+    @patch("matrix_alertbot.alertmanager.timedelta", side_effect=FakeTimeDelta)
+    async def test_create_silence_with_regex_matchers(
+        self, fake_timedelta: Mock
+    ) -> None:
+        matchers: List[AbstractAlertMatcher] = [
+            AlertRegexMatcher(label="alertname", regex=r"alert\d+")
+        ]
+
+        async with FakeAlertmanagerServer() as fake_alertmanager_server:
+            port = fake_alertmanager_server.port
+            alertmanager = AlertmanagerClient(
+                f"http://localhost:{port}", self.fake_cache
+            )
+            async with aiotools.closing_async(alertmanager):
+                silence = await alertmanager.create_silence(
+                    "fingerprint1",
+                    "1d",
+                    "user",
+                    matchers,
+                )
+
+        self.assertEqual("silence1", silence)
+        fake_timedelta.assert_called_once_with(seconds=86400)
+
+    async def test_create_silence_raise_missing_label(self) -> None:
+        matchers: List[AbstractAlertMatcher] = [
+            AlertMatcher(label="alertname", value="alert1"),
+            AlertMatcher(label="severity", value="critical"),
+        ]
+
+        async with FakeAlertmanagerServer() as fake_alertmanager_server:
+            port = fake_alertmanager_server.port
+            alertmanager = AlertmanagerClient(
+                f"http://localhost:{port}", self.fake_cache
+            )
+            async with aiotools.closing_async(alertmanager):
+                with self.assertRaises(AlertMismatchError):
+                    await alertmanager.create_silence(
+                        "fingerprint1",
+                        "1d",
+                        "user",
+                        matchers,
+                    )
+
+    async def test_create_silence_raise_mismatch_label(self) -> None:
+        matchers: List[AbstractAlertMatcher] = [
+            AlertMatcher(label="alertname", value="alert2")
+        ]
+
+        async with FakeAlertmanagerServer() as fake_alertmanager_server:
+            port = fake_alertmanager_server.port
+            alertmanager = AlertmanagerClient(
+                f"http://localhost:{port}", self.fake_cache
+            )
+            async with aiotools.closing_async(alertmanager):
+                with self.assertRaises(AlertMismatchError):
+                    await alertmanager.create_silence(
+                        "fingerprint1",
+                        "1d",
+                        "user",
+                        matchers,
+                    )
+
+    async def test_create_silence_raise_mismatch_regex_label(self) -> None:
+        matchers: List[AbstractAlertMatcher] = [
+            AlertRegexMatcher(label="alertname", regex=r"alert[^\d]+")
+        ]
+
+        async with FakeAlertmanagerServer() as fake_alertmanager_server:
+            port = fake_alertmanager_server.port
+            alertmanager = AlertmanagerClient(
+                f"http://localhost:{port}", self.fake_cache
+            )
+            async with aiotools.closing_async(alertmanager):
+                with self.assertRaises(AlertMismatchError):
+                    await alertmanager.create_silence(
+                        "fingerprint1",
+                        "1d",
+                        "user",
+                        matchers,
+                    )
 
     async def test_create_silence_raise_alert_not_found(self) -> None:
         async with FakeAlertmanagerServerWithoutAlert() as fake_alertmanager_server:
@@ -221,9 +361,9 @@ class AlertmanagerClientTestCase(unittest.IsolatedAsyncioTestCase):
             alertmanager = AlertmanagerClient(
                 f"http://localhost:{port}", self.fake_cache
             )
-            async with aiotools.closing_async(alertmanager) as alertmanager:
+            async with aiotools.closing_async(alertmanager):
                 with self.assertRaises(AlertNotFoundError):
-                    await alertmanager.create_silence("fingerprint1", "1d", "user")
+                    await alertmanager.create_silence("fingerprint1", "1d", "user", [])
 
     async def test_create_silence_raise_alertmanager_error(self) -> None:
         async with FakeAlertmanagerServerWithErrorCreateSilence() as fake_alertmanager_server:
@@ -231,11 +371,11 @@ class AlertmanagerClientTestCase(unittest.IsolatedAsyncioTestCase):
             alertmanager = AlertmanagerClient(
                 f"http://localhost:{port}", self.fake_cache
             )
-            async with aiotools.closing_async(alertmanager) as alertmanager:
+            async with aiotools.closing_async(alertmanager):
                 await alertmanager.get_alert("fingerprint1")
 
                 with self.assertRaises(AlertmanagerServerError):
-                    await alertmanager.create_silence("fingerprint1", "1d", "user")
+                    await alertmanager.create_silence("fingerprint1", "1d", "user", [])
 
     async def test_delete_silences_happy(self) -> None:
         async with FakeAlertmanagerServer() as fake_alertmanager_server:
@@ -243,7 +383,7 @@ class AlertmanagerClientTestCase(unittest.IsolatedAsyncioTestCase):
             alertmanager = AlertmanagerClient(
                 f"http://localhost:{port}", self.fake_cache
             )
-            async with aiotools.closing_async(alertmanager) as alertmanager:
+            async with aiotools.closing_async(alertmanager):
                 silences = await alertmanager.delete_silences("fingerprint2")
                 self.assertEqual(["silence1", "silence2"], silences)
 
@@ -253,7 +393,7 @@ class AlertmanagerClientTestCase(unittest.IsolatedAsyncioTestCase):
             alertmanager = AlertmanagerClient(
                 f"http://localhost:{port}", self.fake_cache
             )
-            async with aiotools.closing_async(alertmanager) as alertmanager:
+            async with aiotools.closing_async(alertmanager):
                 with self.assertRaises(SilenceNotFoundError):
                     await alertmanager.delete_silences("fingerprint1")
 
@@ -263,7 +403,7 @@ class AlertmanagerClientTestCase(unittest.IsolatedAsyncioTestCase):
             alertmanager = AlertmanagerClient(
                 f"http://localhost:{port}", self.fake_cache
             )
-            async with aiotools.closing_async(alertmanager) as alertmanager:
+            async with aiotools.closing_async(alertmanager):
                 with self.assertRaises(AlertNotFoundError):
                     await alertmanager.delete_silences("fingerprint2")
 
@@ -273,7 +413,7 @@ class AlertmanagerClientTestCase(unittest.IsolatedAsyncioTestCase):
             alertmanager = AlertmanagerClient(
                 f"http://localhost:{port}", self.fake_cache
             )
-            async with aiotools.closing_async(alertmanager) as alertmanager:
+            async with aiotools.closing_async(alertmanager):
                 await alertmanager.get_alert("fingerprint1")
 
                 with self.assertRaises(AlertmanagerServerError):

tests/test_command.py

@@ -9,26 +9,19 @@ import matrix_alertbot.callback
 from matrix_alertbot.alertmanager import AlertmanagerClient
 from matrix_alertbot.command import Command
 from matrix_alertbot.errors import AlertmanagerError
+from matrix_alertbot.matcher import AbstractAlertMatcher, AlertMatcher
 
 from tests.utils import make_awaitable
 
 
-async def create_silence_raise_alert_manager_error(
+async def create_silence_raise_alertmanager_error(
-    fingerprint: str, duration: str, user: str
+    fingerprint: str, duration: str, user: str, matchers: List[AbstractAlertMatcher]
 ) -> str:
     if fingerprint == "fingerprint1":
         raise AlertmanagerError
     return "silence1"
 
 
-async def create_silence_raise_alertmanager_error(
-    fingerprint: str, duration: str, user: str
-) -> str:
-    if fingerprint == "fingerprint1":
-        raise AlertmanagerError
-    return "silence2"
-
-
 async def delete_silence_raise_alertmanager_error(fingerprint: str) -> List[str]:
     if fingerprint == "fingerprint1":
         raise AlertmanagerError
@@ -194,7 +187,7 @@ class CommandTestCase(unittest.IsolatedAsyncioTestCase):
         self.fake_client.room_send.assert_not_called()
 
     @patch.object(matrix_alertbot.command, "send_text_to_room")
-    async def test_ack_in_reply_without_duration(
+    async def test_ack_in_reply_without_duration_nor_matchers(
         self, fake_send_text_to_room: Mock
     ) -> None:
         """Tests the callback for InviteMemberEvents"""
@@ -213,6 +206,43 @@ class CommandTestCase(unittest.IsolatedAsyncioTestCase):
         )
         await command._ack()
 
+        # Check that we attempted to create silences
+        self.fake_alertmanager.create_silence.assert_has_calls(
+            [
+                call(fingerprint, "1d", self.fake_message_event.sender, [])
+                for fingerprint in self.fake_fingerprints
+            ]
+        )
+        fake_send_text_to_room.assert_called_once_with(
+            self.fake_client,
+            self.fake_room.room_id,
+            "Created 2 silences with a duration of 1d.",
+        )
+
+    @patch.object(matrix_alertbot.command, "send_text_to_room")
+    async def test_ack_in_reply_without_duration_and_with_matchers(
+        self, fake_send_text_to_room: Mock
+    ) -> None:
+        """Tests the callback for InviteMemberEvents"""
+        # Tests that the bot attempts to join a room after being invited to it
+        matchers: List[AbstractAlertMatcher] = [
+            AlertMatcher(label="alertname", value="alert1"),
+            AlertMatcher(label="severity", value="critical"),
+        ]
+
+        self.fake_message_event.source = self.fake_source_in_reply
+
+        command = Command(
+            self.fake_client,
+            self.fake_cache,
+            self.fake_alertmanager,
+            self.fake_config,
+            "ack alertname=alert1 severity=critical",
+            self.fake_room,
+            self.fake_message_event,
+        )
+        await command._ack()
+
         # Check that we attempted to create silences
         self.fake_alertmanager.create_silence.assert_has_calls(
             [
@@ -220,6 +250,7 @@ class CommandTestCase(unittest.IsolatedAsyncioTestCase):
                     fingerprint,
                     "1d",
                     self.fake_message_event.sender,
+                    matchers,
                 )
                 for fingerprint in self.fake_fingerprints
             ]
@@ -231,7 +262,7 @@ class CommandTestCase(unittest.IsolatedAsyncioTestCase):
         )
 
     @patch.object(matrix_alertbot.command, "send_text_to_room")
-    async def test_ack_in_reply_with_duration(
+    async def test_ack_in_reply_with_duration_and_without_matchers(
         self, fake_send_text_to_room: Mock
     ) -> None:
         """Tests the callback for InviteMemberEvents"""
@@ -244,7 +275,44 @@ class CommandTestCase(unittest.IsolatedAsyncioTestCase):
             self.fake_cache,
             self.fake_alertmanager,
             self.fake_config,
-            "ack 2d",
+            "ack 1w 2d",
+            self.fake_room,
+            self.fake_message_event,
+        )
+        await command._ack()
+
+        # Check that we attempted to create silences
+        self.fake_alertmanager.create_silence.assert_has_calls(
+            [
+                call(fingerprint, "1w 2d", self.fake_message_event.sender, [])
+                for fingerprint in self.fake_fingerprints
+            ]
+        )
+        fake_send_text_to_room.assert_called_once_with(
+            self.fake_client,
+            self.fake_room.room_id,
+            "Created 2 silences with a duration of 1w 2d.",
+        )
+
+    @patch.object(matrix_alertbot.command, "send_text_to_room")
+    async def test_ack_in_reply_with_duration_and_matchers(
+        self, fake_send_text_to_room: Mock
+    ) -> None:
+        """Tests the callback for InviteMemberEvents"""
+        # Tests that the bot attempts to join a room after being invited to it
+        matchers: List[AbstractAlertMatcher] = [
+            AlertMatcher(label="alertname", value="alert1"),
+            AlertMatcher(label="severity", value="critical"),
+        ]
+
+        self.fake_message_event.source = self.fake_source_in_reply
+
+        command = Command(
+            self.fake_client,
+            self.fake_cache,
+            self.fake_alertmanager,
+            self.fake_config,
+            "ack 1w 2d alertname=alert1 severity=critical",
             self.fake_room,
             self.fake_message_event,
         )
@@ -255,8 +323,9 @@ class CommandTestCase(unittest.IsolatedAsyncioTestCase):
             [
                 call(
                     fingerprint,
-                    "2d",
+                    "1w 2d",
                     self.fake_message_event.sender,
+                    matchers,
                 )
                 for fingerprint in self.fake_fingerprints
             ]
@@ -264,7 +333,7 @@ class CommandTestCase(unittest.IsolatedAsyncioTestCase):
         fake_send_text_to_room.assert_called_once_with(
             self.fake_client,
             self.fake_room.room_id,
-            "Created 2 silences with a duration of 2d.",
+            "Created 2 silences with a duration of 1w 2d.",
         )
 
     @patch.object(matrix_alertbot.command, "send_text_to_room")
@@ -294,11 +363,7 @@ class CommandTestCase(unittest.IsolatedAsyncioTestCase):
         # Check that we attempted to create silences
         self.fake_alertmanager.create_silence.assert_has_calls(
             [
-                call(
+                call(fingerprint, "1d", self.fake_message_event.sender, [])
-                    fingerprint,
-                    "1d",
-                    self.fake_message_event.sender,
-                )
                 for fingerprint in self.fake_fingerprints
             ]
         )