10813098328

Committed 11 Sep 2024 01:52PM UTC coverage: 90.667% (+0.2%) from 90.439%

Build # 10813098328

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push

github

Committed by

web-flow

Commit Message

feat(trigger): add custom get metadata hook (#342)

* feat(trigger): add custom get metadata hook
* use custom trigger to override metadata retrieval
* update README
* update tests with new functions
* Remove prints
* Ignore types
* Remove unused import
* Update Django patch versions

---------

Co-authored-by: Mostafa Moradian <mstfmoradian@gmail.com>
Co-authored-by: Mostafa Moradian <mostafa@grafana.com>

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99.55

/django_saml2_auth/tests/test_saml.py

"""
Tests for saml.py
"""

from typing import Dict, Optional, List, Mapping, Union

import pytest
import responses
from django.contrib.sessions.middleware import SessionMiddleware
from unittest.mock import MagicMock
from django.http import HttpRequest
from django.test.client import RequestFactory
from django.urls import NoReverseMatch
from django_saml2_auth.exceptions import SAMLAuthError
from django_saml2_auth.saml import (
    decode_saml_response,
    extract_user_identity,
    get_assertion_url,
    get_default_next_url,
    get_metadata,
    get_saml_client,
    validate_metadata_url,
)
from django_saml2_auth.views import acs
from pytest_django.fixtures import SettingsWrapper
from saml2.client import Saml2Client
from saml2.response import AuthnResponse
from django_saml2_auth import user


GET_METADATA_AUTO_CONF_URLS = "django_saml2_auth.tests.test_saml.get_metadata_auto_conf_urls"
METADATA_URL1 = "https://testserver1.com/saml/sso/metadata"
METADATA_URL2 = "https://testserver2.com/saml/sso/metadata"
# Ref: https://en.wikipedia.org/wiki/SAML_metadata#Entity_metadata
METADATA1 = b"""
<md:EntityDescriptor entityID="https://testserver1.com/entity" validUntil="2025-08-30T19:10:29Z"
    xmlns:md="urn:oasis:names:tc:SAML:2.0:METADATA1"
    xmlns:saml="urn:oasis:names:tc:SAML:2.0:assertion"
    xmlns:mdrpi="urn:oasis:names:tc:SAML:METADATA1:rpi"
    xmlns:mdattr="urn:oasis:names:tc:SAML:METADATA1:attribute"
    xmlns:ds="http://www.w3.org/2000/09/xmldsig#">
    <!-- insert ds:Signature element (omitted) -->
    <md:Extensions>
    <mdrpi:RegistrationInfo registrationAuthority="https://testserver1.com/"/>
    <mdrpi:PublicationInfo creationInstant="2025-08-16T19:10:29Z" publisher="https://testserver1.com/"/>
    <mdattr:EntityAttributes>
        <saml:Attribute Name="https://testserver1.com/entity-category" NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:uri">
        <saml:AttributeValue>https://testserver1.com/category/self-certified</saml:AttributeValue>
        </saml:Attribute>
    </mdattr:EntityAttributes>
    </md:Extensions>
    <!-- insert one or more concrete instances of the md:RoleDescriptor abstract type (see below) -->
    <md:Organization>
    <md:OrganizationName xml:lang="en">...</md:OrganizationName>
    <md:OrganizationDisplayName xml:lang="en">...</md:OrganizationDisplayName>
    <md:OrganizationURL xml:lang="en">https://testserver1.com/</md:OrganizationURL>
    </md:Organization>
    <md:ContactPerson contactType="technical">
    <md:SurName>SAML Technical Support</md:SurName>
    <md:EmailAddress>mailto:technical-support@example.info</md:EmailAddress>
    </md:ContactPerson>
</md:EntityDescriptor>"""
METADATA2 = b"""
<md:EntityDescriptor entityID="https://testserver2.com/entity" validUntil="2025-08-30T19:10:29Z"
    xmlns:md="urn:oasis:names:tc:SAML:2.0:METADATA1"
    xmlns:saml="urn:oasis:names:tc:SAML:2.0:assertion"
    xmlns:mdrpi="urn:oasis:names:tc:SAML:METADATA1:rpi"
    xmlns:mdattr="urn:oasis:names:tc:SAML:METADATA1:attribute"
    xmlns:ds="http://www.w3.org/2000/09/xmldsig#">
    <!-- insert ds:Signature element (omitted) -->
    <md:Extensions>
    <mdrpi:RegistrationInfo registrationAuthority="https://testserver2.com/"/>
    <mdrpi:PublicationInfo creationInstant="2025-08-16T19:10:29Z" publisher="https://testserver2.com/"/>
    <mdattr:EntityAttributes>
        <saml:Attribute Name="https://testserver2.com/entity-category" NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:uri">
        <saml:AttributeValue>https://testserver2.com/category/self-certified</saml:AttributeValue>
        </saml:Attribute>
    </mdattr:EntityAttributes>
    </md:Extensions>
    <!-- insert one or more concrete instances of the md:RoleDescriptor abstract type (see below) -->
    <md:Organization>
    <md:OrganizationName xml:lang="en">...</md:OrganizationName>
    <md:OrganizationDisplayName xml:lang="en">...</md:OrganizationDisplayName>
    <md:OrganizationURL xml:lang="en">https://testserver2.com/</md:OrganizationURL>
    </md:Organization>
    <md:ContactPerson contactType="technical">
    <md:SurName>SAML Technical Support</md:SurName>
    <md:EmailAddress>mailto:technical-support@example.info</md:EmailAddress>
    </md:ContactPerson>
</md:EntityDescriptor>"""
DOMAIN_PATH_MAP = {
    "example.org": "django_saml2_auth/tests/metadata.xml",
    "example.com": "django_saml2_auth/tests/metadata2.xml",
    "api.example.com": "django_saml2_auth/tests/metadata.xml",
}


def get_metadata_auto_conf_urls(
    user_id: Optional[str] = None,
) -> List[Optional[Mapping[str, str]]]:
    """Fixture for returning metadata autoconf URL(s) based on the user_id.

    Args:
        user_id (str, optional): User identifier: username or email. Defaults to None.

    Returns:
        list: Either an empty list or a list of valid metadata URL(s)
    """
    if user_id == "nonexistent_user@example.com":
        return []
    if user_id == "test@example.com":
        return [{"url": METADATA_URL1}]
    return [{"url": METADATA_URL1}, {"url": METADATA_URL2}]


def get_user_identity() -> Mapping[str, List[str]]:
    """Fixture for returning user identity produced by pysaml2.

    Returns:
        dict: keys are SAML attributes and values are lists of attribute values
    """
    return {
        "user.username": ["test@example.com"],
        "user.email": ["test@example.com"],
        "user.first_name": ["John"],
        "user.last_name": ["Doe"],
        "token": ["TOKEN"],
    }


def get_user_identify_with_slashed_keys() -> Mapping[str, List[str]]:
    """Fixture for returning user identity produced by pysaml2 with slashed, claim-like keys.

    Returns:
        dict: keys are SAML attributes and values are lists of attribute values
    """
    return {
        "http://schemas.org/user/username": ["test@example.com"],
        "http://schemas.org/user/claim2.0/email": ["test@example.com"],
        "http://schemas.org/user/claim2.0/first_name": ["John"],
        "http://schemas.org/user/claim2.0/last_name": ["Doe"],
        "http://schemas.org/auth/server/token": ["TOKEN"],
    }


def mock_parse_authn_request_response(
    self: Saml2Client, response: AuthnResponse, binding: str
) -> "MockAuthnResponse":  # type: ignore # noqa: F821
    """Mock function to return an mocked instance of AuthnResponse.

    Returns:
        MockAuthnResponse: A mocked instance of AuthnResponse
    """

    class MockAuthnRequest:
        """Mock class for AuthnRequest."""

        name_id = "Username"

        @staticmethod
        def issuer():
            """Mock function for AuthnRequest.issuer()."""
            return METADATA_URL1

        @staticmethod
        def get_identity():
            """Mock function for AuthnRequest.get_identity()."""
            return get_user_identity()

    return MockAuthnRequest()


def test_get_assertion_url_success():
    """Test get_assertion_url function to verify if it correctly returns the default assertion URL."""
    assertion_url = get_assertion_url(HttpRequest())
    assert assertion_url == "https://api.example.com"


def test_get_assertion_url_no_assertion_url(settings: SettingsWrapper):
    """Test get_assertion_url function to verify if it correctly returns the server's assertion URL
    based on the incoming request.

    Args:
        settings (SettingsWrapper): Fixture for django settings
    """
    settings.SAML2_AUTH["ASSERTION_URL"] = None
    get_request = RequestFactory().get("/acs/")
    assertion_url = get_assertion_url(get_request)
    assert assertion_url == "http://testserver"


def test_get_default_next_url_success():
    """Test get_default_next_url to verify if it returns the correct default next URL."""
    default_next_url = get_default_next_url()
    assert default_next_url == "http://app.example.com/account/login"


def test_get_default_next_url_no_default_next_url(settings: SettingsWrapper):
    """Test get_default_next_url function with no default next url for redirection to see if it
    returns the admin:index route.

    Args:
        settings (SettingsWrapper): Fixture for django settings
    """
    settings.SAML2_AUTH["DEFAULT_NEXT_URL"] = None
    with pytest.raises(SAMLAuthError) as exc_info:
        get_default_next_url()

    # This doesn't happen on a real instance, unless you don't have "admin:index" route
    assert str(exc_info.value) == "We got a URL reverse issue: ['admin:index']"
    assert exc_info.value.extra is not None
    assert issubclass(exc_info.value.extra["exc_type"], NoReverseMatch)


@responses.activate
def test_validate_metadata_url_success():
    """Test validate_metadata_url function to verify a valid metadata URL."""
    responses.add(responses.GET, METADATA_URL1, body=METADATA1)
    result = validate_metadata_url(METADATA_URL1)
    assert result


@responses.activate
def test_validate_metadata_url_failure():
    """Test validate_metadata_url function to verify if it correctly identifies an invalid metadata
    URL."""
    responses.add(responses.GET, METADATA_URL1)
    result = validate_metadata_url(METADATA_URL1)
    assert result is False


@responses.activate
def test_get_metadata_success_with_single_metadata_url(settings: SettingsWrapper):
    """Test get_metadata function to verify if it returns a valid metadata URL with a correct
    format.

    Args:
        settings (SettingsWrapper): Fixture for django settings
    """
    settings.SAML2_AUTH["METADATA_AUTO_CONF_URL"] = METADATA_URL1
    settings.SAML2_AUTH["TRIGGER"]["GET_METADATA_AUTO_CONF_URLS"] = None
    responses.add(responses.GET, METADATA_URL1, body=METADATA1)

    result = get_metadata()
    assert result == {"remote": [{"url": METADATA_URL1}]}


def test_get_metadata_failure_with_invalid_metadata_url(settings: SettingsWrapper):
    """Test get_metadata function to verify if it fails with invalid metadata information.

    Args:
        settings (SettingsWrapper): Fixture for django settings
    """
    # HTTP Responses are not mocked, so this will fail.
    settings.SAML2_AUTH["METADATA_AUTO_CONF_URL"] = METADATA_URL1
    settings.SAML2_AUTH["TRIGGER"]["GET_METADATA_AUTO_CONF_URLS"] = None

    with pytest.raises(SAMLAuthError) as exc_info:
        get_metadata()

    assert str(exc_info.value) == "Invalid metadata URL."


@responses.activate
def test_get_metadata_success_with_multiple_metadata_urls(settings: SettingsWrapper):
    """Test get_metadata function to verify if it returns multiple metadata URLs if the user_id is
    unknown.

    Args:
        settings (SettingsWrapper): Fixture for django settings
    """
    settings.SAML2_AUTH["TRIGGER"]["GET_METADATA_AUTO_CONF_URLS"] = GET_METADATA_AUTO_CONF_URLS
    responses.add(responses.GET, METADATA_URL1, body=METADATA1)
    responses.add(responses.GET, METADATA_URL2, body=METADATA2)

    result = get_metadata()
    assert result == {"remote": [{"url": METADATA_URL1}, {"url": METADATA_URL2}]}


@responses.activate
def test_get_metadata_success_with_user_id(settings: SettingsWrapper):
    """Test get_metadata function to verify if it returns a valid metadata URLs given the user_id.

    Args:
        settings (SettingsWrapper): Fixture for django settings
    """
    settings.SAML2_AUTH["TRIGGER"]["GET_METADATA_AUTO_CONF_URLS"] = GET_METADATA_AUTO_CONF_URLS
    responses.add(responses.GET, METADATA_URL1, body=METADATA1)

    result = get_metadata("test@example.com")
    assert result == {"remote": [{"url": METADATA_URL1}]}


def test_get_metadata_failure_with_nonexistent_user_id(settings: SettingsWrapper):
    """Test get_metadata function to verify if it raises an exception given a nonexistent user_id.

    Args:
        settings (SettingsWrapper): Fixture for django settings
    """
    settings.SAML2_AUTH["TRIGGER"]["GET_METADATA_AUTO_CONF_URLS"] = GET_METADATA_AUTO_CONF_URLS

    with pytest.raises(SAMLAuthError) as exc_info:
        get_metadata("nonexistent_user@example.com")
    assert str(exc_info.value) == "No metadata URL associated with the given user identifier."


def test_get_metadata_success_with_local_file(settings: SettingsWrapper):
    """Test get_metadata function to verify if correctly returns path to local metadata file.

    Args:
        settings (SettingsWrapper): Fixture for django settings
    """
    settings.SAML2_AUTH["TRIGGER"]["GET_METADATA_AUTO_CONF_URLS"] = None
    settings.SAML2_AUTH["METADATA_LOCAL_FILE_PATH"] = "/absolute/path/to/metadata.xml"

    result = get_metadata()
    assert result == {"local": ["/absolute/path/to/metadata.xml"]}


def test_get_saml_client_success(settings: SettingsWrapper):
    """Test get_saml_client function to verify if it is correctly instantiated with local metadata
    file.

    Args:
        settings (SettingsWrapper): Fixture for django settings
    """
    settings.SAML2_AUTH["METADATA_LOCAL_FILE_PATH"] = "django_saml2_auth/tests/metadata.xml"
    result = get_saml_client("example.com", acs)
    assert isinstance(result, Saml2Client)


@responses.activate
def test_get_saml_client_success_with_user_id(settings: SettingsWrapper):
    """Test get_saml_client function to verify if it is correctly instantiated with remote metadata
    URL and valid user_id.

    Args:
        settings (SettingsWrapper): Fixture for django settings
    """
    settings.SAML2_AUTH["TRIGGER"]["GET_METADATA_AUTO_CONF_URLS"] = GET_METADATA_AUTO_CONF_URLS
    responses.add(responses.GET, METADATA_URL1, body=METADATA1)

    result = get_saml_client("example.com", acs, "test@example.com")
    assert isinstance(result, Saml2Client)


def test_get_saml_client_failure_with_missing_metadata_url(settings: SettingsWrapper):
    """Test get_saml_client function to verify if it raises an exception given a missing non-mocked
    metadata URL.

    Args:
        settings (SettingsWrapper): Fixture for django settings
    """
    settings.SAML2_AUTH["TRIGGER"]["GET_METADATA_AUTO_CONF_URLS"] = GET_METADATA_AUTO_CONF_URLS

    with pytest.raises(SAMLAuthError) as exc_info:
        get_saml_client("example.com", acs, "test@example.com")

    assert str(exc_info.value) == "Metadata URL/file is missing."


def test_get_saml_client_failure_with_invalid_file(settings: SettingsWrapper):
    """Test get_saml_client function to verify if it raises an exception given an invalid path to
    metadata file.

    Args:
        settings (SettingsWrapper): Fixture for django settings
    """
    settings.SAML2_AUTH["METADATA_LOCAL_FILE_PATH"] = "/invalid/metadata.xml"
    settings.SAML2_AUTH["TRIGGER"]["GET_METADATA_AUTO_CONF_URLS"] = None

    with pytest.raises(SAMLAuthError) as exc_info:
        get_saml_client("example.com", acs)

    assert str(exc_info.value) == "[Errno 2] No such file or directory: '/invalid/metadata.xml'"
    assert exc_info.value.extra is not None
    assert isinstance(exc_info.value.extra["exc"], FileNotFoundError)


@pytest.mark.parametrize(
    "supplied_config_values,expected_encryption_keypairs",
    [
        (
            {
                "KEY_FILE": "django_saml2_auth/tests/dummy_key.pem",
            },
            None,
        ),
        (
            {
                "CERT_FILE": "django_saml2_auth/tests/dummy_cert.pem",
            },
            None,
        ),
        (
            {
                "KEY_FILE": "django_saml2_auth/tests/dummy_key.pem",
                "CERT_FILE": "django_saml2_auth/tests/dummy_cert.pem",
            },
            [
                {
                    "key_file": "django_saml2_auth/tests/dummy_key.pem",
                    "cert_file": "django_saml2_auth/tests/dummy_cert.pem",
                }
            ],
        ),
    ],
)
def test_get_saml_client_success_with_key_and_cert_files(
    settings: SettingsWrapper,
    supplied_config_values: Dict[str, str],
    expected_encryption_keypairs: Union[List, None],
):
    """Test get_saml_client function to verify that it is correctly instantiated with encryption_keypairs
    if both key_file and cert_file are provided (even if encryption_keypairs isn't).

    Args:
        settings (SettingsWrapper): Fixture for django settings
    """

    settings.SAML2_AUTH["METADATA_LOCAL_FILE_PATH"] = "django_saml2_auth/tests/metadata.xml"

    for key, value in supplied_config_values.items():
        settings.SAML2_AUTH[key] = value

    result = get_saml_client("example.com", acs)
    assert isinstance(result, Saml2Client)
    assert result.config.encryption_keypairs == expected_encryption_keypairs

    for key, value in supplied_config_values.items():
        # ensure that the added settings do not get carried over to other tests
        del settings.SAML2_AUTH[key]


@responses.activate
def test_decode_saml_response_success(
    settings: SettingsWrapper,
    monkeypatch: "MonkeyPatch",  # type: ignore # noqa: F821
):
    """Test decode_saml_response function to verify if it correctly decodes the SAML response.

    Args:
        settings (SettingsWrapper): Fixture for django settings
        monkeypatch (MonkeyPatch): PyTest monkeypatch fixture
    """
    responses.add(responses.GET, METADATA_URL1, body=METADATA1)
    settings.SAML2_AUTH["ASSERTION_URL"] = "https://api.example.com"
    settings.SAML2_AUTH["TRIGGER"]["GET_METADATA_AUTO_CONF_URLS"] = GET_METADATA_AUTO_CONF_URLS

    post_request = RequestFactory().post(METADATA_URL1, {"SAMLResponse": "SAML RESPONSE"})
    monkeypatch.setattr(
        Saml2Client, "parse_authn_request_response", mock_parse_authn_request_response
    )
    result = decode_saml_response(post_request, acs)
    assert len(result.get_identity()) > 0  # type: ignore


def test_extract_user_identity_success():
    """Test extract_user_identity function to verify if it correctly extracts user identity
    information from a (pysaml2) parsed SAML response."""
    result = extract_user_identity(get_user_identity())  # type: ignore
    assert len(result) == 6
    assert result["username"] == result["email"] == "test@example.com"
    assert result["first_name"] == "John"
    assert result["last_name"] == "Doe"
    assert result["token"] == "TOKEN"
    assert result["user_identity"] == get_user_identity()


def test_extract_user_identity_with_slashed_attribute_keys_success(settings: SettingsWrapper):
    """Test extract_user_identity function to verify if it correctly extracts user identity
    information from a (pysaml2) parsed SAML response with slashed attribute keys."""
    settings.SAML2_AUTH = {
        "ATTRIBUTES_MAP": {
            "email": "http://schemas.org/user/claim2.0/email",
            "username": "http://schemas.org/user/username",
            "first_name": "http://schemas.org/user/claim2.0/first_name",
            "last_name": "http://schemas.org/user/claim2.0/last_name",
            "token": "http://schemas.org/auth/server/token",
        }
    }

    result = extract_user_identity(get_user_identify_with_slashed_keys())  # type: ignore

    assert len(result) == 6
    assert result["username"] == result["email"] == "test@example.com"
    assert result["first_name"] == "John"
    assert result["last_name"] == "Doe"
    assert result["token"] == "TOKEN"
    assert result["user_identity"] == get_user_identify_with_slashed_keys()


def test_extract_user_identity_token_not_required(settings: SettingsWrapper):
    """Test extract_user_identity function to verify if it correctly extracts user identity
    information from a (pysaml2) parsed SAML response when token is not required."""
    settings.SAML2_AUTH["TOKEN_REQUIRED"] = False

    result = extract_user_identity(get_user_identity())  # type: ignore
    assert len(result) == 5
    assert "token" not in result


@pytest.mark.django_db
@responses.activate
def test_acs_view_when_next_url_is_none(
    settings: SettingsWrapper,
    monkeypatch: "MonkeyPatch",  # type: ignore # noqa: F821
):
    """Test Acs view when login_next_url is None in the session"""
    responses.add(responses.GET, METADATA_URL1, body=METADATA1)
    settings.SAML2_AUTH = {
        "ASSERTION_URL": "https://api.example.com",
        "DEFAULT_NEXT_URL": "default_next_url",
        "USE_JWT": False,
        "TRIGGER": {
            "BEFORE_LOGIN": None,
            "AFTER_LOGIN": None,
            "GET_METADATA_AUTO_CONF_URLS": GET_METADATA_AUTO_CONF_URLS,
        },
    }
    post_request = RequestFactory().post(METADATA_URL1, {"SAMLResponse": "SAML RESPONSE"})

    monkeypatch.setattr(
        Saml2Client, "parse_authn_request_response", mock_parse_authn_request_response
    )

    created, mock_user = user.get_or_create_user(
        {"username": "test@example.com", "first_name": "John", "last_name": "Doe"}
    )

    monkeypatch.setattr(
        user,
        "get_or_create_user",
        (
            created,
            mock_user,
        ),
    )

    middleware = SessionMiddleware(MagicMock())
    middleware.process_request(post_request)
    post_request.session["login_next_url"] = None
    post_request.session.save()

    result = acs(post_request)
    assert result["Location"] == "default_next_url"


@pytest.mark.django_db
@responses.activate
def test_acs_view_when_redirection_state_is_passed_in_relay_state(
    settings: SettingsWrapper,
    monkeypatch: "MonkeyPatch",  # type: ignore # noqa: F821
):
    """Test Acs view when login_next_url is None and redirection state in POST request"""
    responses.add(responses.GET, METADATA_URL1, body=METADATA1)
    settings.SAML2_AUTH = {
        "ASSERTION_URL": "https://api.example.com",
        "DEFAULT_NEXT_URL": "default_next_url",
        "USE_JWT": False,
        "TRIGGER": {
            "BEFORE_LOGIN": None,
            "AFTER_LOGIN": None,
            "GET_METADATA_AUTO_CONF_URLS": GET_METADATA_AUTO_CONF_URLS,
        },
    }
    post_request = RequestFactory().post(
        METADATA_URL1, {"SAMLResponse": "SAML RESPONSE", "RelayState": "/admin/logs"}
    )

    monkeypatch.setattr(
        Saml2Client, "parse_authn_request_response", mock_parse_authn_request_response
    )

    created, mock_user = user.get_or_create_user(
        {"username": "test@example.com", "first_name": "John", "last_name": "Doe"}
    )

    monkeypatch.setattr(
        user,
        "get_or_create_user",
        (
            created,
            mock_user,
        ),
    )

    middleware = SessionMiddleware(MagicMock())
    middleware.process_request(post_request)
    post_request.session["login_next_url"] = None
    post_request.session.save()

    result = acs(post_request)
    assert result["Location"] == "/admin/logs"


def get_custom_metadata_example(
    user_id: Optional[str] = None,
    domain:  Optional[str] = None,
    saml_response: Optional[str] = None,
):
    """
    Get metadata file locally depending on current SP domain
    """
    metadata_file_path = "/absolute/path/to/metadata.xml"
    if domain:
        protocol_idx = domain.find("https://")
        if protocol_idx > -1:
            domain = domain[protocol_idx + 8:]
        if domain in DOMAIN_PATH_MAP:
            print('metadata domain', domain)
            metadata_file_path = DOMAIN_PATH_MAP[domain]
            print('metadata path', metadata_file_path)
        else:
            raise SAMLAuthError(f"Domain {domain} not mapped!")
    else:
        # Fallback to local path
        metadata_file_path = "/absolute/path/to/metadata.xml"
    return {"local": [metadata_file_path]}


# WARNING: leave this test at the end or add
# settings.SAML2_AUTH["TRIGGER"]["GET_CUSTOM_METADATA"] = None
# to following tests that uses settings, otherwise the TRIGGER.GET_CUSTOM_METADATA is always set
# and used in the get_metadata function

def test_get_metadata_success_with_custom_trigger(settings: SettingsWrapper):
    """Test get_metadata function to verify if correctly returns path to local metadata file.

    Args:
        settings (SettingsWrapper): Fixture for django settings
    """
    settings.SAML2_AUTH["TRIGGER"]["GET_METADATA_AUTO_CONF_URLS"] = None
    settings.SAML2_AUTH["TRIGGER"]["GET_CUSTOM_METADATA"] = "django_saml2_auth.tests.test_saml.get_custom_metadata_example"
    
    result = get_metadata(domain="https://example.com")
    assert result == {"local": ["django_saml2_auth/tests/metadata2.xml"]}

    with pytest.raises(SAMLAuthError) as exc_info:
        get_metadata(domain="not-mapped-example.com")

    assert str(exc_info.value) == "Domain not-mapped-example.com not mapped!"

grafana / django-saml2-auth / 10813098328

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