summaryrefslogtreecommitdiffstats
path: root/test/units/module_utils/gcp/test_auth.py
blob: b158d81ca3fd6c6324775138fdb31aee76df5c91 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
# -*- coding: utf-8 -*-
# (c) 2016, Tom Melendez (@supertom) <tom@supertom.com>
#
# This file is part of Ansible
#
# Ansible is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Ansible is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Ansible.  If not, see <http://www.gnu.org/licenses/>.
import os
import sys

import pytest

from units.compat import mock, unittest
from ansible.module_utils.gcp import (_get_gcp_ansible_credentials, _get_gcp_credentials, _get_gcp_environ_var,
                                      _get_gcp_environment_credentials,
                                      _validate_credentials_file)

# Fake data/function used for testing
fake_env_data = {'GCE_EMAIL': 'gce-email'}


def fake_get_gcp_environ_var(var_name, default_value):
    if var_name not in fake_env_data:
        return default_value
    else:
        return fake_env_data[var_name]

# Fake AnsibleModule for use in tests


class FakeModule(object):
    class Params():
        data = {}

        def get(self, key, alt=None):
            if key in self.data:
                return self.data[key]
            else:
                return alt

    def __init__(self, data=None):
        data = {} if data is None else data

        self.params = FakeModule.Params()
        self.params.data = data

    def fail_json(self, **kwargs):
        raise ValueError("fail_json")

    def deprecate(self, **kwargs):
        return None


class GCPAuthTestCase(unittest.TestCase):
    """Tests to verify different Auth mechanisms."""

    def setup_method(self, method):
        global fake_env_data
        fake_env_data = {'GCE_EMAIL': 'gce-email'}

    def test_get_gcp_ansible_credentials(self):
        input_data = {'service_account_email': 'mysa',
                      'credentials_file': 'path-to-file.json',
                      'project_id': 'my-cool-project'}

        module = FakeModule(input_data)
        actual = _get_gcp_ansible_credentials(module)
        expected = tuple(input_data.values())
        self.assertEqual(sorted(expected), sorted(actual))

    def test_get_gcp_environ_var(self):
        # Chose not to mock this so we could really verify that it
        # works as expected.
        existing_var_name = 'gcp_ansible_auth_test_54321'
        non_existing_var_name = 'doesnt_exist_gcp_ansible_auth_test_12345'
        os.environ[existing_var_name] = 'foobar'
        self.assertEqual('foobar', _get_gcp_environ_var(
            existing_var_name, None))
        del os.environ[existing_var_name]
        self.assertEqual('default_value', _get_gcp_environ_var(
            non_existing_var_name, 'default_value'))

    def test_validate_credentials_file(self):
        # TODO(supertom): Only dealing with p12 here, check the other states
        # of this function
        module = FakeModule()
        with mock.patch("ansible.module_utils.gcp.open",
                        mock.mock_open(read_data='foobar'), create=True) as m:
            # pem condition, warning is suppressed with the return_value
            credentials_file = '/foopath/pem.pem'
            with self.assertRaises(ValueError):
                _validate_credentials_file(module,
                                           credentials_file=credentials_file,
                                           require_valid_json=False,
                                           check_libcloud=False)

    @mock.patch('ansible.module_utils.gcp._get_gcp_environ_var',
                side_effect=fake_get_gcp_environ_var)
    def test_get_gcp_environment_credentials(self, mockobj):
        global fake_env_data

        actual = _get_gcp_environment_credentials(None, None, None)
        expected = tuple(['gce-email', None, None])
        self.assertEqual(expected, actual)

        fake_env_data = {'GCE_PEM_FILE_PATH': '/path/to/pem.pem'}
        expected = tuple([None, '/path/to/pem.pem', None])
        actual = _get_gcp_environment_credentials(None, None, None)
        self.assertEqual(expected, actual)

        # pem and creds are set, expect creds
        fake_env_data = {'GCE_PEM_FILE_PATH': '/path/to/pem.pem',
                         'GCE_CREDENTIALS_FILE_PATH': '/path/to/creds.json'}
        expected = tuple([None, '/path/to/creds.json', None])
        actual = _get_gcp_environment_credentials(None, None, None)
        self.assertEqual(expected, actual)

        # expect GOOGLE_APPLICATION_CREDENTIALS over PEM
        fake_env_data = {'GCE_PEM_FILE_PATH': '/path/to/pem.pem',
                         'GOOGLE_APPLICATION_CREDENTIALS': '/path/to/appcreds.json'}
        expected = tuple([None, '/path/to/appcreds.json', None])
        actual = _get_gcp_environment_credentials(None, None, None)
        self.assertEqual(expected, actual)

        # project tests
        fake_env_data = {'GCE_PROJECT': 'my-project'}
        expected = tuple([None, None, 'my-project'])
        actual = _get_gcp_environment_credentials(None, None, None)
        self.assertEqual(expected, actual)

        fake_env_data = {'GOOGLE_CLOUD_PROJECT': 'my-cloud-project'}
        expected = tuple([None, None, 'my-cloud-project'])
        actual = _get_gcp_environment_credentials(None, None, None)
        self.assertEqual(expected, actual)

        # data passed in, picking up project id only
        fake_env_data = {'GOOGLE_CLOUD_PROJECT': 'my-project'}
        expected = tuple(['my-sa-email', '/path/to/creds.json', 'my-project'])
        actual = _get_gcp_environment_credentials(
            'my-sa-email', '/path/to/creds.json', None)
        self.assertEqual(expected, actual)

    @mock.patch('ansible.module_utils.gcp._get_gcp_environ_var',
                side_effect=fake_get_gcp_environ_var)
    def test_get_gcp_credentials(self, mockobj):
        global fake_env_data

        fake_env_data = {}
        module = FakeModule()
        module.params.data = {}
        # Nothing is set, calls fail_json
        with pytest.raises(ValueError):
            _get_gcp_credentials(module)

        # project_id (only) is set from Ansible params.
        module.params.data['project_id'] = 'my-project'
        actual = _get_gcp_credentials(
            module, require_valid_json=True, check_libcloud=False)
        expected = {'service_account_email': '',
                    'project_id': 'my-project',
                    'credentials_file': ''}
        self.assertEqual(expected, actual)