frigate/frigate/test/test_env.py

"""Tests for environment variable handling."""

import os
import tempfile
import unittest
from unittest.mock import MagicMock, patch

from pydantic import ValidationError

from frigate.config import FrigateConfig
from frigate.util import env
from frigate.util.env import (
    FRIGATE_ENV_VARS,
    validate_env_string,
    validate_env_vars,
)


class TestGo2RtcAddStreamSubstitution(unittest.TestCase):
    """Covers the API path: PUT /go2rtc/streams/{stream_name}.

    The route shells out to go2rtc via `requests.put`; we mock the HTTP call
    and assert that the substituted `src` parameter handles the same mixed
    {FRIGATE_*} + literal-brace strings as the config-loading path.
    """

    def setUp(self):
        self._original_env_vars = dict(FRIGATE_ENV_VARS)

    def tearDown(self):
        FRIGATE_ENV_VARS.clear()
        FRIGATE_ENV_VARS.update(self._original_env_vars)

    def _call_route(self, src: str) -> str:
        """Invoke go2rtc_add_stream and return the substituted src param."""
        from frigate.api import camera as camera_api

        captured = {}

        def fake_put(url, params=None, timeout=None):
            captured["params"] = params
            resp = MagicMock()
            resp.ok = True
            resp.text = ""
            resp.status_code = 200
            return resp

        with patch.object(camera_api.requests, "put", side_effect=fake_put):
            camera_api.go2rtc_add_stream(
                request=MagicMock(), stream_name="cam1", src=src
            )
        return captured["params"]["src"]

    def test_mixed_localtime_and_frigate_var(self):
        """%{localtime\\:...} alongside {FRIGATE_USER} substitutes only the var."""
        FRIGATE_ENV_VARS["FRIGATE_USER"] = "admin"
        src = "rtsp://host/s?text=%{localtime\\:%Y-%m-%d}&user={FRIGATE_USER}"
        self.assertEqual(
            self._call_route(src),
            "rtsp://host/s?text=%{localtime\\:%Y-%m-%d}&user=admin",
        )

    def test_unknown_var_falls_back_to_raw_src(self):
        """Existing route behavior: unknown {FRIGATE_*} keeps raw src."""
        src = "rtsp://host/{FRIGATE_NONEXISTENT}/stream"
        self.assertEqual(self._call_route(src), src)

    def test_malformed_placeholder_rejected_via_api(self):
        """Malformed FRIGATE placeholders raise (not silently passed through).

        Regression: previously camera.py caught any KeyError and fell back
        to the raw src, so `{FRIGATE_FOO:>5}` was silently accepted via the
        API while config loading rejected it. The helper now raises
        ValueError for malformed syntax to keep the two paths consistent.
        """
        with self.assertRaises(ValueError):
            self._call_route("rtsp://host/{FRIGATE_FOO:>5}/stream")


class TestEnvString(unittest.TestCase):
    def setUp(self):
        self._original_env_vars = dict(FRIGATE_ENV_VARS)

    def tearDown(self):
        FRIGATE_ENV_VARS.clear()
        FRIGATE_ENV_VARS.update(self._original_env_vars)

    def test_substitution(self):
        """EnvString substitutes FRIGATE_ env vars."""
        FRIGATE_ENV_VARS["FRIGATE_TEST_HOST"] = "192.168.1.100"
        result = validate_env_string("{FRIGATE_TEST_HOST}")
        self.assertEqual(result, "192.168.1.100")

    def test_substitution_in_url(self):
        """EnvString substitutes vars embedded in a URL."""
        FRIGATE_ENV_VARS["FRIGATE_CAM_USER"] = "admin"
        FRIGATE_ENV_VARS["FRIGATE_CAM_PASS"] = "secret"
        result = validate_env_string(
            "rtsp://{FRIGATE_CAM_USER}:{FRIGATE_CAM_PASS}@10.0.0.1/stream"
        )
        self.assertEqual(result, "rtsp://admin:secret@10.0.0.1/stream")

    def test_no_placeholder(self):
        """Plain strings pass through unchanged."""
        result = validate_env_string("192.168.1.1")
        self.assertEqual(result, "192.168.1.1")

    def test_unknown_var_raises(self):
        """Referencing an unknown var raises UnknownVariableError."""
        with self.assertRaises(env.UnknownVariableError) as ctx:
            validate_env_string("{FRIGATE_NONEXISTENT_VAR}")
        self.assertIn("FRIGATE_NONEXISTENT_VAR", str(ctx.exception))

    def test_non_frigate_braces_passthrough(self):
        """Braces that are not {FRIGATE_*} placeholders pass through untouched.

        Regression test for ffmpeg drawtext expressions like
        "%{localtime\\:%Y-%m-%d}" being mangled by str.format().
        """
        expr = (
            "ffmpeg:rtsp://127.0.0.1/src#raw=-vf "
            "drawtext=text=%{localtime\\:%Y-%m-%d_%H\\:%M\\:%S}"
            ":x=5:fontcolor=white"
        )
        self.assertEqual(validate_env_string(expr), expr)

    def test_double_brace_escape_preserved(self):
        """`{{output}}` collapses to `{output}` (documented go2rtc escape)."""
        result = validate_env_string(
            "exec:ffmpeg -i /media/file.mp4 -f rtsp {{output}}"
        )
        self.assertEqual(result, "exec:ffmpeg -i /media/file.mp4 -f rtsp {output}")

    def test_double_brace_around_frigate_var(self):
        """`{{FRIGATE_FOO}}` stays literal — escape takes precedence."""
        FRIGATE_ENV_VARS["FRIGATE_FOO"] = "bar"
        self.assertEqual(validate_env_string("{{FRIGATE_FOO}}"), "{FRIGATE_FOO}")

    def test_mixed_frigate_var_and_braces(self):
        """A FRIGATE_ var alongside literal single braces substitutes only the var."""
        FRIGATE_ENV_VARS["FRIGATE_USER"] = "admin"
        result = validate_env_string(
            "drawtext=text=%{localtime}:user={FRIGATE_USER}:x=5"
        )
        self.assertEqual(result, "drawtext=text=%{localtime}:user=admin:x=5")

    def test_triple_braces_around_frigate_var(self):
        """`{{{FRIGATE_FOO}}}` collapses like str.format(): `{bar}`."""
        FRIGATE_ENV_VARS["FRIGATE_FOO"] = "bar"
        self.assertEqual(validate_env_string("{{{FRIGATE_FOO}}}"), "{bar}")

    def test_trailing_double_brace_after_var(self):
        """`{FRIGATE_FOO}}}` collapses like str.format(): `bar}`."""
        FRIGATE_ENV_VARS["FRIGATE_FOO"] = "bar"
        self.assertEqual(validate_env_string("{FRIGATE_FOO}}}"), "bar}")

    def test_leading_double_brace_then_var(self):
        """`{{{FRIGATE_FOO}` collapses like str.format(): `{bar`."""
        FRIGATE_ENV_VARS["FRIGATE_FOO"] = "bar"
        self.assertEqual(validate_env_string("{{{FRIGATE_FOO}"), "{bar")

    def test_malformed_unterminated_placeholder_raises(self):
        """`{FRIGATE_FOO` (no closing brace) raises like str.format() did."""
        FRIGATE_ENV_VARS["FRIGATE_FOO"] = "bar"
        with self.assertRaises(ValueError):
            validate_env_string("prefix-{FRIGATE_FOO")

    def test_malformed_format_spec_raises(self):
        """`{FRIGATE_FOO:>5}` (format spec) raises like str.format() did."""
        FRIGATE_ENV_VARS["FRIGATE_FOO"] = "bar"
        with self.assertRaises(ValueError):
            validate_env_string("{FRIGATE_FOO:>5}")

    def test_malformed_conversion_raises(self):
        """`{FRIGATE_FOO!r}` (conversion) raises like str.format() did."""
        FRIGATE_ENV_VARS["FRIGATE_FOO"] = "bar"
        with self.assertRaises(ValueError):
            validate_env_string("{FRIGATE_FOO!r}")


class TestUnknownVariableSurfacing(unittest.TestCase):
    """An undefined variable must reach the user as a config validation error."""

    def test_unknown_var_is_a_validation_error(self):
        """Pydantic reports the field path instead of raising KeyError."""
        with self.assertRaises(ValidationError) as ctx:
            FrigateConfig.parse_object(
                {"mqtt": {"host": "{FRIGATE_NOT_SET_ANYWHERE}"}, "cameras": {}}
            )
        self.assertIn("FRIGATE_NOT_SET_ANYWHERE", str(ctx.exception))


class TestEnvVars(unittest.TestCase):
    def setUp(self):
        self._original_env_vars = dict(FRIGATE_ENV_VARS)
        self._original_environ = os.environ.copy()

    def tearDown(self):
        FRIGATE_ENV_VARS.clear()
        FRIGATE_ENV_VARS.update(self._original_env_vars)
        env._CONFIG_ENV_VARS.clear()
        # Clean up any env vars we set
        for key in list(os.environ.keys()):
            if key not in self._original_environ:
                del os.environ[key]

    def _make_context(self, install: bool):
        """Create a mock ValidationInfo with the given install flag."""

        class MockContext:
            def __init__(self, ctx):
                self.context = ctx

        mock = MockContext({"install": install})
        return mock

    def test_install_sets_os_environ(self):
        """validate_env_vars with install=True sets os.environ."""
        ctx = self._make_context(install=True)
        validate_env_vars({"MY_CUSTOM_VAR": "value123"}, ctx)
        self.assertEqual(os.environ.get("MY_CUSTOM_VAR"), "value123")

    def test_install_updates_frigate_env_vars(self):
        """validate_env_vars with install=True updates FRIGATE_ENV_VARS for FRIGATE_ keys."""
        ctx = self._make_context(install=True)
        validate_env_vars({"FRIGATE_MQTT_PASS": "secret"}, ctx)
        self.assertEqual(FRIGATE_ENV_VARS["FRIGATE_MQTT_PASS"], "secret")

    def test_install_skips_non_frigate_in_env_vars_dict(self):
        """Non-FRIGATE_ keys are set in os.environ but not in FRIGATE_ENV_VARS."""
        ctx = self._make_context(install=True)
        validate_env_vars({"OTHER_VAR": "value"}, ctx)
        self.assertEqual(os.environ.get("OTHER_VAR"), "value")
        self.assertNotIn("OTHER_VAR", FRIGATE_ENV_VARS)

    def test_no_install_does_not_set(self):
        """validate_env_vars without install=True does not modify state."""
        ctx = self._make_context(install=False)
        validate_env_vars({"FRIGATE_SKIP": "nope"}, ctx)
        self.assertNotIn("FRIGATE_SKIP", FRIGATE_ENV_VARS)
        self.assertNotIn("FRIGATE_SKIP", os.environ)

    def test_env_vars_available_for_env_string(self):
        """Vars set via validate_env_vars are usable in validate_env_string."""
        ctx = self._make_context(install=True)
        validate_env_vars({"FRIGATE_BROKER": "mqtt.local"}, ctx)
        result = validate_env_string("{FRIGATE_BROKER}")
        self.assertEqual(result, "mqtt.local")

    def test_install_ignores_go2rtc_exec_override(self):
        """The go2rtc exec override cannot be enabled from the config."""
        from frigate.util.services import is_go2rtc_arbitrary_exec_allowed

        env_patch = patch.dict(os.environ)
        env_patch.start()
        self.addCleanup(env_patch.stop)
        os.environ.pop("GO2RTC_ALLOW_ARBITRARY_EXEC", None)
        ctx = self._make_context(install=True)
        with patch("frigate.util.services.os.path.isfile", return_value=False):
            for key in ("GO2RTC_ALLOW_ARBITRARY_EXEC", "go2rtc_allow_arbitrary_exec"):
                validate_env_vars({key: "true", "OTHER_VAR": "value"}, ctx)
                self.assertNotIn(key, os.environ)
                self.assertFalse(is_go2rtc_arbitrary_exec_allowed())
        self.assertEqual(os.environ.get("OTHER_VAR"), "value")

    def test_install_keeps_container_go2rtc_exec_override(self):
        """An override set in the container environment is left untouched."""
        ctx = self._make_context(install=True)
        with patch.dict(os.environ, {"GO2RTC_ALLOW_ARBITRARY_EXEC": "true"}):
            validate_env_vars({"GO2RTC_ALLOW_ARBITRARY_EXEC": "false"}, ctx)
            self.assertEqual(os.environ.get("GO2RTC_ALLOW_ARBITRARY_EXEC"), "true")


class TestVariableSources(unittest.TestCase):
    """Precedence between the sources that feed FRIGATE_ENV_VARS."""

    def setUp(self):
        self._original_env_vars = dict(env.FRIGATE_ENV_VARS)
        self._original_os_environ = dict(os.environ)

    def tearDown(self):
        env.FRIGATE_ENV_VARS.clear()
        env.FRIGATE_ENV_VARS.update(self._original_env_vars)
        env._CONFIG_ENV_VARS.clear()
        env._WARNED_COLLISIONS.clear()
        os.environ.clear()
        os.environ.update(self._original_os_environ)

    def test_container_env_beats_config_env_vars(self):
        """A container env var wins over the same key in environment_vars."""
        with patch.dict(env._CONTAINER_ENV, {"FRIGATE_MQTT_HOST": "from_env"}):
            env.apply_config_env_vars({"FRIGATE_MQTT_HOST": "from_config"})
            self.assertEqual(env.FRIGATE_ENV_VARS["FRIGATE_MQTT_HOST"], "from_env")

    def test_credentials_dir_beats_container_env(self):
        """A credentials directory file wins over a container env var."""
        with (
            patch.dict(env._CONTAINER_ENV, {"FRIGATE_MQTT_HOST": "from_env"}),
            patch.dict(env._CREDENTIALS_DIR, {"FRIGATE_MQTT_HOST": "from_creds"}),
        ):
            env._rebuild()
            self.assertEqual(env.FRIGATE_ENV_VARS["FRIGATE_MQTT_HOST"], "from_creds")

    def test_config_env_vars_used_when_no_other_source(self):
        """environment_vars still resolves when nothing else defines the key."""
        env.apply_config_env_vars({"FRIGATE_CAM_PASS": "hunter2"})
        self.assertEqual(env.FRIGATE_ENV_VARS["FRIGATE_CAM_PASS"], "hunter2")

    def test_config_env_vars_do_not_become_container_env(self):
        """environment_vars writes os.environ but must not gain env precedence."""
        env.apply_config_env_vars({"FRIGATE_CAM_PASS": "from_config"})
        self.assertEqual(os.environ["FRIGATE_CAM_PASS"], "from_config")
        self.assertNotIn("FRIGATE_CAM_PASS", env._CONTAINER_ENV)

    def test_non_frigate_config_env_vars_only_set_os_environ(self):
        """Unprefixed environment_vars keys reach os.environ but not substitution."""
        env.apply_config_env_vars({"LIBVA_DRIVER_NAME": "i965"})
        self.assertEqual(os.environ["LIBVA_DRIVER_NAME"], "i965")
        self.assertNotIn("LIBVA_DRIVER_NAME", env.FRIGATE_ENV_VARS)

    def test_collision_warns_once_naming_the_winner(self):
        """A key from two sources logs one warning naming the source that won."""
        with patch.dict(env._CONTAINER_ENV, {"FRIGATE_MQTT_HOST": "from_env"}):
            with self.assertLogs("frigate.util.env", level="WARNING") as logs:
                env.apply_config_env_vars({"FRIGATE_MQTT_HOST": "from_config"})
            self.assertEqual(len(logs.output), 1)
            self.assertIn("FRIGATE_MQTT_HOST", logs.output[0])
            self.assertIn("using the value from container environment", logs.output[0])
            self.assertNotIn("environment_vars", logs.output[0])

            with self.assertNoLogs("frigate.util.env", level="WARNING"):
                env._rebuild()


class TestSecretsFile(unittest.TestCase):
    """Reading <config dir>/secrets.yaml."""

    def setUp(self):
        self._original_env_vars = dict(env.FRIGATE_ENV_VARS)
        self._original_os_environ = dict(os.environ)
        self._dir = tempfile.TemporaryDirectory()
        self.addCleanup(self._dir.cleanup)
        os.environ["CONFIG_FILE"] = os.path.join(self._dir.name, "config.yml")

    def tearDown(self):
        env.FRIGATE_ENV_VARS.clear()
        env.FRIGATE_ENV_VARS.update(self._original_env_vars)
        env._SECRETS_FILE.clear()
        env._CONFIG_ENV_VARS.clear()
        env._WARNED_COLLISIONS.clear()
        os.environ.clear()
        os.environ.update(self._original_os_environ)

    def _write(self, contents: str, name: str = "secrets.yaml") -> None:
        with open(os.path.join(self._dir.name, name), "w") as f:
            f.write(contents)

    def test_missing_file_is_not_an_error(self):
        """No secrets.yaml means no values and no exception."""
        self.assertEqual(env._load_secrets_file(), {})

    def test_flat_map_is_read(self):
        """A flat FRIGATE_* map loads."""
        self._write("FRIGATE_CAM_USER: viewer\nFRIGATE_CAM_PASS: 'p@ss w0rd'\n")
        self.assertEqual(
            env._load_secrets_file(),
            {"FRIGATE_CAM_USER": "viewer", "FRIGATE_CAM_PASS": "p@ss w0rd"},
        )

    def test_yml_extension_is_read(self):
        """secrets.yml works the same as secrets.yaml."""
        self._write("FRIGATE_CAM_USER: viewer\n", name="secrets.yml")
        self.assertEqual(env._load_secrets_file(), {"FRIGATE_CAM_USER": "viewer"})

    def test_numeric_value_is_coerced_to_string(self):
        """Unquoted numbers become strings so they can be substituted."""
        self._write("FRIGATE_MQTT_PORT: 1883\n")
        self.assertEqual(env._load_secrets_file(), {"FRIGATE_MQTT_PORT": "1883"})

    def test_unprefixed_key_is_ignored_with_a_warning(self):
        """Names must start with FRIGATE_, matching the credentials directory."""
        self._write("cam_pass: hunter2\nFRIGATE_CAM_PASS: hunter2\n")
        with self.assertLogs("frigate.util.env", level="WARNING") as logs:
            values = env._load_secrets_file()
        self.assertEqual(values, {"FRIGATE_CAM_PASS": "hunter2"})
        self.assertIn("cam_pass", logs.output[0])

    def test_non_mapping_document_raises(self):
        """A list or scalar document is a config error."""
        self._write("- FRIGATE_CAM_PASS\n")
        with self.assertRaises(ValueError):
            env._load_secrets_file()

    def test_nested_value_raises_naming_the_key(self):
        """Nesting is not supported and the error names the key."""
        self._write("FRIGATE_CAMS:\n  alley: hunter2\n")
        with self.assertRaises(ValueError) as ctx:
            env._load_secrets_file()
        self.assertIn("FRIGATE_CAMS", str(ctx.exception))

    def test_secrets_file_beats_config_env_vars(self):
        """secrets.yaml outranks the environment_vars block."""
        self._write("FRIGATE_CAM_PASS: from_secrets\n")
        env.apply_config_env_vars({"FRIGATE_CAM_PASS": "from_config"})
        env._SECRETS_FILE.update(env._load_secrets_file())
        env._rebuild()
        self.assertEqual(env.FRIGATE_ENV_VARS["FRIGATE_CAM_PASS"], "from_secrets")

    def test_container_env_beats_secrets_file(self):
        """The container environment outranks secrets.yaml."""
        self._write("FRIGATE_CAM_PASS: from_secrets\n")
        env._SECRETS_FILE.update(env._load_secrets_file())
        with patch.dict(env._CONTAINER_ENV, {"FRIGATE_CAM_PASS": "from_env"}):
            env._rebuild()
            self.assertEqual(env.FRIGATE_ENV_VARS["FRIGATE_CAM_PASS"], "from_env")


class TestSecretsReload(unittest.TestCase):
    """secrets.yaml is re-read when a config is parsed."""

    def setUp(self):
        self._original_env_vars = dict(env.FRIGATE_ENV_VARS)
        self._original_os_environ = dict(os.environ)
        self._dir = tempfile.TemporaryDirectory()
        self.addCleanup(self._dir.cleanup)
        os.environ["CONFIG_FILE"] = os.path.join(self._dir.name, "config.yml")

    def tearDown(self):
        env.FRIGATE_ENV_VARS.clear()
        env.FRIGATE_ENV_VARS.update(self._original_env_vars)
        env._SECRETS_FILE.clear()
        env._CONFIG_ENV_VARS.clear()
        env._WARNED_COLLISIONS.clear()
        os.environ.clear()
        os.environ.update(self._original_os_environ)
        env.reload_sources()

    def test_new_secret_resolves_without_restart(self):
        """A key written after import is picked up by the next parse."""
        with open(os.path.join(self._dir.name, "secrets.yaml"), "w") as f:
            f.write("FRIGATE_MQTT_HOST: mqtt.internal\n")

        config = FrigateConfig.parse_yaml(
            'mqtt:\n  host: "{FRIGATE_MQTT_HOST}"\ncameras: {}\n'
        )
        self.assertEqual(config.mqtt.host, "mqtt.internal")

    def test_config_env_vars_survive_the_reload(self):
        """environment_vars is only installed when install=True, so it has to
        outlive the reload that a later non-install parse triggers. This is
        the /config/save path: a config that starts fine must still validate.
        """
        env.apply_config_env_vars({"FRIGATE_MQTT_HOST": "from_config"})
        config = FrigateConfig.parse_yaml(
            'mqtt:\n  host: "{FRIGATE_MQTT_HOST}"\ncameras: {}\n'
        )
        self.assertEqual(config.mqtt.host, "from_config")
        self.assertEqual(env._CONFIG_ENV_VARS["FRIGATE_MQTT_HOST"], "from_config")


class TestSourceRobustness(unittest.TestCase):
    """Reload behavior, bad input, and the os.environ export."""

    def setUp(self):
        self._original_env_vars = dict(env.FRIGATE_ENV_VARS)
        self._original_os_environ = dict(os.environ)
        self._dir = tempfile.TemporaryDirectory()
        self._creds = tempfile.TemporaryDirectory()
        self.addCleanup(self._dir.cleanup)
        self.addCleanup(self._creds.cleanup)
        os.environ["CONFIG_FILE"] = os.path.join(self._dir.name, "config.yml")
        os.environ["CREDENTIALS_DIRECTORY"] = self._creds.name

    def tearDown(self):
        env.FRIGATE_ENV_VARS.clear()
        env.FRIGATE_ENV_VARS.update(self._original_env_vars)
        env._SECRETS_FILE.clear()
        env._CONFIG_ENV_VARS.clear()
        env._CREDENTIALS_DIR.clear()
        env._WARNED_COLLISIONS.clear()
        os.environ.clear()
        os.environ.update(self._original_os_environ)
        env.reload_sources()

    def _write_secrets(self, contents: str) -> None:
        with open(os.path.join(self._dir.name, "secrets.yaml"), "w") as f:
            f.write(contents)

    def test_os_environ_gets_the_winning_value(self):
        """FRIGATE_JWT_SECRET and friends are read straight from os.environ."""
        self._write_secrets("FRIGATE_JWT_SECRET: from_secrets\n")
        env.reload_sources()
        env.apply_config_env_vars({"FRIGATE_JWT_SECRET": "from_config"})
        self.assertEqual(os.environ["FRIGATE_JWT_SECRET"], "from_secrets")
        self.assertEqual(
            os.environ["FRIGATE_JWT_SECRET"],
            env.FRIGATE_ENV_VARS["FRIGATE_JWT_SECRET"],
        )

    def test_rebuild_without_warn_stays_quiet_then_warns_later(self):
        """The import-time rebuild must not consume the one-shot warning."""
        self._write_secrets("FRIGATE_DUPE: from_secrets\n")
        env.reload_sources()
        env._CONFIG_ENV_VARS["FRIGATE_DUPE"] = "from_config"

        with self.assertNoLogs("frigate.util.env", level="WARNING"):
            env._rebuild(warn=False)

        with self.assertLogs("frigate.util.env", level="WARNING") as logs:
            env._rebuild()
        self.assertIn("FRIGATE_DUPE", logs.output[0])

    def test_malformed_secrets_file_keeps_last_good_values(self):
        """A typo must not raise, since this runs at import and on every parse."""
        self._write_secrets("FRIGATE_CAM_PASS: hunter2\n")
        env.reload_sources()

        self._write_secrets("FRIGATE_CAMS:\n  alley: hunter2\n")
        with self.assertLogs("frigate.util.env", level="ERROR") as logs:
            env.reload_sources()

        self.assertIn("FRIGATE_CAMS", logs.output[0])
        self.assertEqual(env.FRIGATE_ENV_VARS["FRIGATE_CAM_PASS"], "hunter2")

    def test_duplicate_key_error_does_not_log_the_values(self):
        """ruamel's duplicate key message quotes both values; the log must not."""
        self._write_secrets("FRIGATE_CAM_PASS: hunter2\nFRIGATE_CAM_PASS: hunter3\n")
        with self.assertLogs("frigate.util.env", level="ERROR") as logs:
            env.reload_sources()

        self.assertNotIn("hunter2", logs.output[0])
        self.assertNotIn("hunter3", logs.output[0])
        self.assertIn("secrets.yaml", logs.output[0])

    def test_deleted_secret_stops_resolving(self):
        """Removing a name takes effect on the next parse, not on restart."""
        self._write_secrets("FRIGATE_GONE: hunter2\n")
        env.reload_sources()
        self.assertEqual(env.FRIGATE_ENV_VARS["FRIGATE_GONE"], "hunter2")

        os.remove(os.path.join(self._dir.name, "secrets.yaml"))
        env.reload_sources()
        self.assertNotIn("FRIGATE_GONE", env.FRIGATE_ENV_VARS)

    def test_reload_rereads_the_credentials_directory(self):
        """The credentials directory is refreshed, not just secrets.yaml."""
        with open(os.path.join(self._creds.name, "FRIGATE_CRED"), "w") as f:
            f.write("from_creds\n")
        env.reload_sources()
        self.assertEqual(env.FRIGATE_ENV_VARS["FRIGATE_CRED"], "from_creds")

    def test_unreadable_credentials_entry_is_skipped(self):
        """A subdirectory must not take down validation on every parse."""
        os.mkdir(os.path.join(self._creds.name, "FRIGATE_NOT_A_FILE"))
        with open(os.path.join(self._creds.name, "FRIGATE_CRED"), "w") as f:
            f.write("from_creds\n")

        with self.assertLogs("frigate.util.env", level="WARNING") as logs:
            env.reload_sources()

        self.assertIn("FRIGATE_NOT_A_FILE", logs.output[0])
        self.assertEqual(env.FRIGATE_ENV_VARS["FRIGATE_CRED"], "from_creds")


if __name__ == "__main__":
    unittest.main()