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test_terminals_api.py
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test_terminals_api.py
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"""Test the terminal service API."""
import time
from requests import HTTPError
from traitlets.config import Config
from notebook.utils import url_path_join
from notebook.tests.launchnotebook import NotebookTestBase, assert_http_error
class TerminalAPI:
"""Wrapper for terminal REST API requests"""
def __init__(self, request, base_url, headers):
self.request = request
self.base_url = base_url
self.headers = headers
def _req(self, verb, path, body=None):
response = self.request(verb, path, data=body)
if 400 <= response.status_code < 600:
try:
response.reason = response.json()['message']
except:
pass
response.raise_for_status()
return response
def list(self):
return self._req('GET', 'api/terminals')
def get(self, name):
return self._req('GET', url_path_join('api/terminals', name))
def start(self):
return self._req('POST', 'api/terminals')
def shutdown(self, name):
return self._req('DELETE', url_path_join('api/terminals', name))
class TerminalAPITest(NotebookTestBase):
"""Test the terminals web service API"""
def setUp(self):
self.term_api = TerminalAPI(self.request,
base_url=self.base_url(),
headers=self.auth_headers(),
)
def tearDown(self):
for k in self.term_api.list().json():
self.term_api.shutdown(k['name'])
def test_no_terminals(self):
# Make sure there are no terminals are running at the start
terminals = self.term_api.list().json()
self.assertEqual(terminals, [])
def test_create_terminal(self):
# POST request
r = self.term_api._req('POST', 'api/terminals')
term1 = r.json()
self.assertEqual(r.status_code, 200)
self.assertIsInstance(term1, dict)
def test_create_terminal_via_get(self):
# Test creation of terminal via GET against terminals/new/<name>
r = self.term_api._req('GET', 'terminals/new')
self.assertEqual(r.status_code, 200)
r = self.term_api.get('1')
term1 = r.json()
self.assertEqual(r.status_code, 200)
self.assertIsInstance(term1, dict)
self.assertEqual(term1['name'], '1')
# hit the same endpoint a second time and ensure a second named terminal is created
r = self.term_api._req('GET', 'terminals/new')
self.assertEqual(r.status_code, 200)
r = self.term_api.get('2')
term2 = r.json()
self.assertEqual(r.status_code, 200)
self.assertIsInstance(term2, dict)
self.assertEqual(term2['name'], '2')
r = self.term_api.shutdown('2')
self.assertEqual(r.status_code, 204)
# Make sure there is 1 terminal running
terminals = self.term_api.list().json()
self.assertEqual(len(terminals), 1)
r = self.term_api.shutdown('1')
self.assertEqual(r.status_code, 204)
# Make sure there are no terminals are running
terminals = self.term_api.list().json()
self.assertEqual(len(terminals), 0)
def test_create_terminal_with_name(self):
# Test creation of terminal via GET against terminals/new/<name>
r = self.term_api._req('GET', 'terminals/new/foo')
self.assertEqual(r.status_code, 200)
r = self.term_api.get('foo')
foo_term = r.json()
self.assertEqual(r.status_code, 200)
self.assertIsInstance(foo_term, dict)
self.assertEqual(foo_term['name'], 'foo')
# hit the same endpoint a second time and ensure 302 with Location is returned
r = self.term_api._req('GET', 'terminals/new/foo')
# Access the "interesting" response from the history
self.assertEqual(len(r.history), 1)
r = r.history[0]
foo_term = r.json()
self.assertEqual(r.status_code, 302)
self.assertEqual(r.headers['Location'], self.url_prefix + "terminals/foo")
self.assertIsInstance(foo_term, dict)
self.assertEqual(foo_term['name'], 'foo')
r = self.term_api.shutdown('foo')
self.assertEqual(r.status_code, 204)
# Make sure there are no terminals are running
terminals = self.term_api.list().json()
self.assertEqual(len(terminals), 0)
# hit terminals/new/new and ensure that 400 is raised
with assert_http_error(400):
self.term_api._req('GET', 'terminals/new/new')
def test_terminal_root_handler(self):
# POST request
r = self.term_api.start()
term1 = r.json()
self.assertEqual(r.status_code, 200)
self.assertIsInstance(term1, dict)
# GET request
r = self.term_api.list()
self.assertEqual(r.status_code, 200)
assert isinstance(r.json(), list)
self.assertEqual(r.json()[0]['name'], term1['name'])
# create another terminal and check that they both are added to the
# list of terminals from a GET request
term2 = self.term_api.start().json()
assert isinstance(term2, dict)
r = self.term_api.list()
terminals = r.json()
self.assertEqual(r.status_code, 200)
assert isinstance(terminals, list)
self.assertEqual(len(terminals), 2)
def test_terminal_handler(self):
# GET terminal with given name
term = self.term_api.start().json()['name']
r = self.term_api.get(term)
term1 = r.json()
self.assertEqual(r.status_code, 200)
assert isinstance(term1, dict)
self.assertIn('name', term1)
self.assertEqual(term1['name'], term)
# Request a bad terminal id and check that a JSON
# message is returned!
bad_term = 'nonExistentTerm'
with assert_http_error(404, 'Terminal not found: ' + bad_term):
self.term_api.get(bad_term)
# DELETE terminal with name
r = self.term_api.shutdown(term)
self.assertEqual(r.status_code, 204)
terminals = self.term_api.list().json()
self.assertEqual(terminals, [])
# Request to delete a non-existent terminal name
bad_term = 'nonExistentTerm'
with assert_http_error(404, 'Terminal not found: ' + bad_term):
self.term_api.shutdown(bad_term)
class TerminalCullingTest(NotebookTestBase):
# Configure culling
config = Config({
'NotebookApp': {
'TerminalManager': {
'cull_interval': 3,
'cull_inactive_timeout': 2
}
}
})
def setUp(self):
self.term_api = TerminalAPI(self.request,
base_url=self.base_url(),
headers=self.auth_headers(),
)
def tearDown(self):
for k in self.term_api.list().json():
self.term_api.shutdown(k['name'])
# Sanity check verifying that the configurable was properly set.
def test_config(self):
self.assertEqual(self.config.NotebookApp.TerminalManager.cull_inactive_timeout, 2)
self.assertEqual(self.config.NotebookApp.TerminalManager.cull_interval, 3)
terminal_mgr = self.notebook.web_app.settings['terminal_manager']
self.assertEqual(terminal_mgr.cull_inactive_timeout, 2)
self.assertEqual(terminal_mgr.cull_interval, 3)
def test_culling(self):
# POST request
r = self.term_api.start()
self.assertEqual(r.status_code, 200)
body = r.json()
term1 = body['name']
last_activity = body['last_activity']
culled = False
for i in range(10): # Culling should occur in a few seconds
try:
r = self.term_api.get(term1)
except HTTPError as e:
self.assertEqual(e.response.status_code, 404)
culled = True
break
else:
self.assertEqual(r.status_code, 200)
time.sleep(1)
self.assertTrue(culled)