008 add telegram alerts

tests/config/test_alerts_config.py

@@ -0,0 +1,93 @@
+import pytest
+from pydantic import ValidationError
+
+from app.config import AlertsConfig, Settings
+
+
+def _clear_alert_env(monkeypatch: pytest.MonkeyPatch) -> None:
+    for name in (
+        "G2S_ALERTS__TELEGRAM_ENABLED",
+        "G2S_ALERTS__TELEGRAM_BOT_TOKEN",
+        "G2S_ALERTS__TELEGRAM_CHAT_ID",
+    ):
+        monkeypatch.delenv(name, raising=False)
+
+
+def test_alerts_settings_are_loaded_from_yaml(tmp_path, monkeypatch) -> None:
+    _clear_alert_env(monkeypatch)
+    config_file = tmp_path / "config.yaml"
+    config_file.write_text(
+        """
+alerts:
+  telegram_enabled: true
+  telegram_bot_token: "bot-token"
+  telegram_chat_id: "-100777"
+  provider_5xx:
+    error_count: 7
+    window_minutes: 6
+  provider_p99_latency:
+    threshold_ms: 5200
+    window_minutes: 11
+  provider_unavailable:
+    duration_minutes: 8
+""".strip(),
+        encoding="utf-8",
+    )
+    monkeypatch.setenv("G2S_CONFIG_FILE", str(config_file))
+
+    settings = Settings()
+
+    assert settings.alerts.telegram_enabled is True
+    assert settings.alerts.telegram_bot_token == "bot-token"
+    assert settings.alerts.telegram_chat_id == "-100777"
+    assert settings.alerts.provider_5xx.error_count == 7
+    assert settings.alerts.provider_5xx.window_minutes == 6
+    assert settings.alerts.provider_p99_latency.threshold_ms == 5200
+    assert settings.alerts.provider_p99_latency.window_minutes == 11
+    assert settings.alerts.provider_unavailable.duration_minutes == 8
+
+
+@pytest.mark.parametrize(
+    ("yaml_body", "error_message"),
+    [
+        (
+            """
+alerts:
+  telegram_enabled: true
+  telegram_chat_id: "-100777"
+""".strip(),
+            "alerts.telegram_bot_token is required when alerts.telegram_enabled=true",
+        ),
+        (
+            """
+alerts:
+  telegram_enabled: true
+  telegram_bot_token: "bot-token"
+""".strip(),
+            "alerts.telegram_chat_id is required when alerts.telegram_enabled=true",
+        ),
+    ],
+)
+def test_enabled_telegram_requires_credentials(
+    tmp_path,
+    monkeypatch,
+    yaml_body: str,
+    error_message: str,
+) -> None:
+    _clear_alert_env(monkeypatch)
+    config_file = tmp_path / "config.yaml"
+    config_file.write_text(yaml_body, encoding="utf-8")
+    monkeypatch.setenv("G2S_CONFIG_FILE", str(config_file))
+
+    with pytest.raises(ValidationError, match=error_message):
+        Settings()
+
+
+def test_alert_condition_defaults_match_required_thresholds() -> None:
+    alerts = AlertsConfig()
+
+    assert alerts.provider_5xx.error_count == 5
+    assert alerts.provider_5xx.window_minutes == 5
+    assert alerts.provider_p99_latency.threshold_ms == 5000
+    assert alerts.provider_p99_latency.window_minutes == 10
+    assert alerts.provider_unavailable.duration_minutes == 5

tests/config/test_config_sections.py

@@ -15,6 +15,8 @@ def test_configuration_sections_are_loaded_from_env(monkeypatch) -> None:
     monkeypatch.setenv("G2S_ADAPTER__CDEK_CACHE_TTL_SECONDS", "780")
     monkeypatch.setenv("G2S_OBSERVABILITY__SERVICE_NAME", "g2s-test")
     monkeypatch.setenv("G2S_ALERTS__TELEGRAM_ENABLED", "true")
+    monkeypatch.setenv("G2S_ALERTS__TELEGRAM_BOT_TOKEN", "bot-token")
+    monkeypatch.setenv("G2S_ALERTS__TELEGRAM_CHAT_ID", "-100")
 
     settings = Settings()
 
@@ -57,6 +59,8 @@ observability:
   service_name: "g2s-yaml"
 alerts:
   telegram_enabled: true
+  telegram_bot_token: "yaml-bot-token"
+  telegram_chat_id: "-100100"
 """.strip(),
         encoding="utf-8",
     )
@@ -77,6 +81,8 @@ alerts:
     assert settings.adapter.cdek_cache_ttl_seconds == 810
     assert settings.observability.service_name == "g2s-yaml"
     assert settings.alerts.telegram_enabled is True
+    assert settings.alerts.telegram_bot_token == "yaml-bot-token"
+    assert settings.alerts.telegram_chat_id == "-100100"
 
 
 def test_get_settings_returns_cached_instance(monkeypatch) -> None: