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app_tests.py
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app_tests.py
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#!/usr/bin/env python -W ignore::DeprecationWarning
import pdb
import base64
import json
import time
import unittest
import os
import shutil
from config import config
import requests
from gesture_recognition import create_app, db, socketio
from gesture_recognition.models import User, Frame
class OnlineTests(unittest.TestCase):
# setup application (executes at beginning of unit testing)
def setUp(self):
self.app = create_app('testing')
self.ctx = self.app.app_context()
self.ctx.push()
# reset image and figure directories
image_dir = config['testing'].IMAGE_DIRECTORY
fig_dir = config['testing'].FIGURE_DIRECTORY
if os.path.isdir(image_dir):
shutil.rmtree(image_dir)
if os.path.isdir(fig_dir):
shutil.rmtree(fig_dir)
db.drop_all()
os.mkdir(image_dir)
orig_dir = os.path.join(image_dir, 'original')
os.mkdir(orig_dir)
processed_dir = os.path.join(image_dir, 'processed')
os.mkdir(processed_dir)
os.mkdir(fig_dir)
db.create_all()
self.client = self.app.test_client() # used to process all API and socketio calls
# teardown application (executes at end of unit testing)
def tearDown(self):
db.drop_all()
self.ctx.pop()
# configure request header compatibility
def get_headers(self, basic_auth=None, token_auth=None):
headers = {
'Accept': 'application/json',
'Content-Type': 'application/json'
}
if basic_auth is not None:
headers['Authorization'] = 'Basic ' + base64.b64encode(basic_auth.encode('utf-8')).decode('utf-8')
if token_auth is not None: # need to test
headers['Authorization'] = 'Bearer ' + token_auth
return headers
# configure GET API compatibility
def get(self, url, basic_auth=None, token_auth=None):
response = self.client.get(url, headers=self.get_headers(basic_auth, token_auth))
# clean up the database session, since this only occurs when the app
# context is popped.
db.session.remove()
body = response.get_data(as_text=True)
if body is not None and body != '':
try:
body = json.loads(body)
except:
pass
return body, response.status_code, response.headers
# configure POST API compatibility
def post(self, url, data=None, basic_auth=None, token_auth=None):
data = data if data is None else json.dumps(data)
response = self.client.post(url, data=data, headers=self.get_headers(basic_auth, token_auth))
# clean up the database session, since this only occurs when the app context is popped.
db.session.remove() # investigate why necessary
body = response.get_data(as_text=True)
if body is not None and body != '':
try:
body = json.loads(body)
except:
pass
return body, response.status_code, response.headers
# test api/users endpoint
def test_users(self):
# successful registration - return 200, token
response, status, headers = self.post('/api/users', data={'username': 'foo', 'password': 'bar'})
self.assertEqual(status, 200)
self.assertIn('token', list(response.keys()))
# register duplicate user - return 400
response, status, headers = self.post('/api/users', data={'username': 'foo', 'password': 'bar'})
self.assertEqual(status, 400)
# blank or no username or password - return 400
response, status, headers = self.post('/api/users', data={'username': '', 'password': 'bar'})
self.assertEqual(status, 400)
response, status, headers = self.post('/api/users', data={'username': 'foo', 'password': ''})
self.assertEqual(status, 400)
response, status, headers = self.post('/api/users', data={'username': None, 'password': 'bar'})
self.assertEqual(status, 400)
response, status, headers = self.post('/api/users', data={'username': 'foo', 'password': None})
self.assertEqual(status, 400)
# get user list - return 200, dictionary with 'users' where each user dictionary includes only 'online' and 'username'
response, status, headers = self.get('/api/users')
self.assertEqual(status, 200)
self.assertIn('users', list(response.keys()))
self.assertEqual(2, len(list(response['users'][0].keys())))
self.assertIn('online', list(response['users'][0].keys()))
self.assertIn('username', list(response['users'][0].keys()))
# test api/tokens endpoint
def test_tokens(self):
# blank or no username or password - return 401
response, status, headers = self.post('/api/tokens', basic_auth="'':bar")
self.assertEqual(status, 401)
response, status, headers = self.post('/api/tokens', basic_auth="foo:''")
self.assertEqual(status, 401)
response, status, headers = self.post('/api/tokens', basic_auth=":bar")
self.assertEqual(status, 401)
response, status, headers = self.post('/api/tokens', basic_auth="foo:")
self.assertEqual(status, 401)
# incorrect password - return 401
response, status, headers = self.post('/api/users', data={'username': 'foo', 'password': 'bar'})
self.assertEqual(status, 200)
response, status, headers = self.post('/api/tokens', basic_auth="foo:baz")
self.assertEqual(status, 401)
# successful authentication - return 200, token
response, status, headers = self.post('/api/tokens', basic_auth="foo:bar")
self.assertEqual(status, 200)
self.assertIn('token', list(response.keys()))
# test socketio connections
def test_socketio(self):
client = socketio.test_client(self.app)
# create a user and a token
response, status, headers = self.post('/api/users', data={'username': 'foo', 'password': 'bar'})
self.assertEqual(status, 200)
token = response['token']
# clear old socket.io notifications
client.get_received()
# load test image and token
img = 'test.jpg'
img_path = os.path.join(os.getcwd(), img)
with open(img_path, 'rb') as img:
byte_img = img.read()
data = {}
data['image'] = byte_img
data['token'] = token
# no prediction without saved background
command = ''
data['command'] = command
data['gesture'] = 'fist'
client.emit('post_image', data)
recvd = client.get_received()
self.assertEqual(recvd[0]['args'][0]['label'], "No gesture predicted. Please exit frame of camera and press 'b' to save background and commence predictions.")
self.assertEqual(recvd[0]['args'][0]['train_image'][0:4], '/9j/') # check JPEG image output
self.assertEqual(recvd[0]['args'][0]['command'], command)
# background saved with gesture inputted
command = 'b'
data['command'] = command
data['gesture'] = 'fist'
client.emit('post_image', data)
recvd = client.get_received()
self.assertEqual(recvd[0]['args'][0]['label'], "Saving background. One moment please.")
self.assertEqual(recvd[0]['args'][0]['train_image'][0:4], '/9j/') # check JPEG image output
self.assertEqual(recvd[0]['args'][0]['command'], command)
# successful prediction
command = ''
data['command'] = command
data['gesture'] = 'fist'
client.emit('post_image', data)
recvd = client.get_received()
client.emit('post_image', data)
recvd = client.get_received()
self.assertRegex(recvd[0]['args'][0]['label'][0], '^[0-9]')
self.assertEqual(recvd[0]['args'][0]['train_image'][0:4], '/9j/') # check JPEG image output
self.assertEqual(recvd[0]['args'][0]['command'], command)
# background reset
command = 'r'
data['command'] = command
data['gesture'] = ''
client.emit('post_image', data)
recvd = client.get_received()
self.assertEqual(recvd[0]['args'][0]['label'], "No gesture predicted. Please exit frame of camera and press 'b' to save background and commence predictions.")
self.assertEqual(recvd[0]['args'][0]['train_image'][0:4], '/9j/') # check JPEG image output
self.assertEqual(recvd[0]['args'][0]['command'], command)
# background saved without gesture inputted
command = 'b'
data['command'] = command
client.emit('post_image', data)
recvd = client.get_received()
self.assertEqual(recvd[0]['args'][0]['label'], "No gesture predicted. Please input gesture.")
self.assertEqual(recvd[0]['args'][0]['train_image'][0:4], '/9j/') # check JPEG image output
self.assertEqual(recvd[0]['args'][0]['command'], command)
# invalid token
token = 'invalid_token'
command = ''
data['command'] = command
data['gesture'] = 'fist'
data['token'] = token
client.emit('post_image', data)
recvd = client.get_received()
self.assertEqual(recvd[0]['args'][0]['label'], "Invalid login attempt.")
self.assertEqual(recvd[0]['args'][0]['train_image'], '') # check JPEG image output
self.assertEqual(recvd[0]['args'][0]['command'], '')
# disconnect the user
self.assertEqual(client.is_connected(), True)
client.disconnect()
self.assertEqual(client.is_connected(), False)
if __name__ == '__main__':
unittest.main()