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import json
from base64 import b64decode
from datetime import datetime
from unittest import TestCase
from unittest import mock
from hvac import Client
class TestAwsIamMethods(TestCase):
"""Unit tests providing coverage for AWS (EC2) auth backend-related methods/routes."""
@mock.patch("hvac.aws_utils.datetime")
@mock.patch("hvac.adapters.Adapter.login")
def test_auth_aws_iam(self, login_mock, datetime_mock):
datetime_mock.utcnow.return_value = datetime(2015, 8, 30, 12, 36, 0)
client = Client()
client.auth.aws.iam_login(
"AKIDEXAMPLE", "wJalrXUtnFEMI/K7MDENG+bPxRfiCYEXAMPLEKEY"
)
login_mock.assert_called()
args, kwargs = login_mock.call_args
actual_params = kwargs["json"]
actual_iam_http_request_method = actual_params["iam_http_request_method"]
self.assertEqual("POST", actual_iam_http_request_method)
actual_iam_request_url = b64decode(actual_params["iam_request_url"]).decode(
"utf-8"
)
self.assertEqual("https://sts.amazonaws.com/", actual_iam_request_url)
expected_auth_header_parts = [
"Credential=AKIDEXAMPLE/20150830/us-east-1/sts/aws4_request",
"SignedHeaders=content-length;content-type;host;x-amz-date",
"Signature=0268ea4a725deae1116f5228d6b177fb047f9f3a9e1c5fd4baa0dc1fbb0d1a99",
]
expected_iam_request_headers = {
"Authorization": [
"{} {}".format(
"AWS4-HMAC-SHA256", ", ".join(expected_auth_header_parts)
)
],
"Content-Length": ["43"],
"Content-Type": ["application/x-www-form-urlencoded; charset=utf-8"],
"Host": ["sts.amazonaws.com"],
"X-Amz-Date": ["20150830T123600Z"],
}
actual_iam_request_headers = json.loads(
b64decode(actual_params["iam_request_headers"])
)
self.assertEqual(expected_iam_request_headers, actual_iam_request_headers)
actual_iam_request_body = b64decode(actual_params["iam_request_body"]).decode(
"utf-8"
)
self.assertEqual(
"Action=GetCallerIdentity&Version=2011-06-15", actual_iam_request_body
)
actual_role = actual_params["role"]
self.assertEqual(None, actual_role)
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