Licensed under the Apache License, Version 2.0 (the “License”);
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an “AS IS” BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
import os
import unittest
from unittest import mock
from .config_exception import ConfigException
from .exec_provider import ExecProvider
from .kube_config import ConfigNode
class ExecProviderTest(unittest.TestCase):
def setUp(self):
self.input_ok = ConfigNode('test', {
'command': 'aws-iam-authenticator',
'args': ['token', '-i', 'dummy'],
'apiVersion': 'client.authentication.k8s.io/v1beta1',
'env': None
})
self.output_ok = """
{
"apiVersion": "client.authentication.k8s.io/v1beta1",
"kind": "ExecCredential",
"status": {
"token": "dummy"
}
}
"""
def test_missing_input_keys(self):
exec_configs = [ConfigNode('test1', {}),
ConfigNode('test2', {'command': ''}),
ConfigNode('test3', {'apiVersion': ''})]
for exec_config in exec_configs:
with self.assertRaises(ConfigException) as context:
ExecProvider(exec_config, None)
self.assertIn('exec: malformed request. missing key',
context.exception.args[0])
@mock.patch('subprocess.Popen')
def test_error_code_returned(self, mock):
instance = mock.return_value
instance.wait.return_value = 1
instance.communicate.return_value = ('', '')
with self.assertRaises(ConfigException) as context:
ep = ExecProvider(self.input_ok, None)
ep.run()
self.assertIn('exec: process returned %d' %
instance.wait.return_value, context.exception.args[0])
@mock.patch('subprocess.Popen')
def test_nonjson_output_returned(self, mock):
instance = mock.return_value
instance.wait.return_value = 0
instance.communicate.return_value = ('', '')
with self.assertRaises(ConfigException) as context:
ep = ExecProvider(self.input_ok, None)
ep.run()
self.assertIn('exec: failed to decode process output',
context.exception.args[0])
@mock.patch('subprocess.Popen')
def test_missing_output_keys(self, mock):
instance = mock.return_value
instance.wait.return_value = 0
outputs = [
"""
{
"kind": "ExecCredential",
"status": {
"token": "dummy"
}
}
""", """
{
"apiVersion": "client.authentication.k8s.io/v1beta1",
"status": {
"token": "dummy"
}
}
""", """
{
"apiVersion": "client.authentication.k8s.io/v1beta1",
"kind": "ExecCredential"
}
"""
]
for output in outputs:
instance.communicate.return_value = (output, '')
with self.assertRaises(ConfigException) as context:
ep = ExecProvider(self.input_ok, None)
ep.run()
self.assertIn('exec: malformed response. missing key',
context.exception.args[0])
@mock.patch('subprocess.Popen')
def test_mismatched_api_version(self, mock):
instance = mock.return_value
instance.wait.return_value = 0
wrong_api_version = 'client.authentication.k8s.io/v1'
output = """
{
"apiVersion": "%s",
"kind": "ExecCredential",
"status": {
"token": "dummy"
}
}
""" % wrong_api_version
instance.communicate.return_value = (output, '')
with self.assertRaises(ConfigException) as context:
ep = ExecProvider(self.input_ok, None)
ep.run()
self.assertIn(
'exec: plugin api version %s does not match' %
wrong_api_version,
context.exception.args[0])
@mock.patch('subprocess.Popen')
def test_ok_01(self, mock):
instance = mock.return_value
instance.wait.return_value = 0
instance.communicate.return_value = (self.output_ok, '')
ep = ExecProvider(self.input_ok, None)
result = ep.run()
self.assertTrue(isinstance(result, dict))
self.assertTrue('token' in result)
@mock.patch('subprocess.Popen')
def test_run_in_dir(self, mock):
instance = mock.return_value
instance.wait.return_value = 0
instance.communicate.return_value = (self.output_ok, '')
ep = ExecProvider(self.input_ok, '/some/directory')
ep.run()
self.assertEqual(mock.call_args[1]['cwd'], '/some/directory')
@mock.patch('subprocess.Popen')
def test_ok_no_console_attached(self, mock):
instance = mock.return_value
instance.wait.return_value = 0
instance.communicate.return_value = (self.output_ok, '')
mock_stdout = unittest.mock.patch(
'sys.stdout', new=None) # Simulate detached console
with mock_stdout:
ep = ExecProvider(self.input_ok, None)
result = ep.run()
self.assertTrue(isinstance(result, dict))
self.assertTrue('token' in result)
if name == ‘main’:
unittest.main()
