Made Locust to login to a Web Application - locust

Question

I want locust to be able to login to my web application and start to click in the links inside the web application.
With this code I just get activity for the front page with the login and i don't get any notification from inside the application.
Code:
import random
from locust import HttpLocust, TaskSet, task
from pyquery import PyQuery
class WalkPages(TaskSet):
def on_start(self):
self.client.post("/", {
"UserName": "my#email.com",
"Password": "2Password!",
"submit": "Sign In"
})
self.index_page()
#task(10)
def index_page(self):
r = self.client.get("/Dashboard.mvc")
pq = PyQuery(r.content)
link_elements = pq("a")
self.urls_on_current_page = []
for l in link_elements:
if "href" in l.attrib:
self.urls_on_current_page.append(l.attrib["href"])
#task(30)
def load_page(self):
url = random.choice(self.urls_on_current_page)
r = self.client.get(url)
class AwesomeUser(HttpLocust):
task_set = WalkPages
host = "https://myenv.beta.webapp.com"
min_wait = 20 * 1000
max_wait = 60 * 1000
I get the follow msg in the terminal after the first round.
[2015-02-13 12:08:43,740] webapp-qa/ERROR/stderr: Traceback (most recent call last):
File "/usr/local/lib/python2.7/dist-packages/locust/core.py", line 267, in run
self.execute_next_task()
File "/usr/local/lib/python2.7/dist-packages/locust/core.py", line 293, in execute_next_task
self.execute_task(task["callable"], *task["args"], **task["kwargs"])
File "/usr/local/lib/python2.7/dist-packages/locust/core.py", line 305, in execute_task
task(self, *args, **kwargs)
File "/home/webapp/LoadTest/locustfile.py", line 31, in load_page
url = random.choice(self.urls_on_current_page)
File "/usr/lib/python2.7/random.py", line 273, in choice
return seq[int(self.random() * len(seq))] # raises IndexError if seq is empty
IndexError: list index out of range
[2015-02-13 12:08:43,752] webapp-qa/ERROR/stderr: Traceback (most recent call last):
File "/usr/local/lib/python2.7/dist-packages/locust/core.py", line 267, in run
self.execute_next_task()
File "/usr/local/lib/python2.7/dist-packages/locust/core.py", line 293, in execute_next_task
self.execute_task(task["callable"], *task["args"], **task["kwargs"])
File "/usr/local/lib/python2.7/dist-packages/locust/core.py", line 305, in execute_task
task(self, *args, **kwargs)
File "/home/webapp/LoadTest/locustfile.py", line 31, in load_page
url = random.choice(self.urls_on_current_page)
File "/usr/lib/python2.7/random.py", line 273, in choice
return seq[int(self.random() * len(seq))] # raises IndexError if seq is empty
IndexError: list index out of range
[2015-02-13 12:08:43,775] webapp-qa/ERROR/stderr: Traceback (most recent call last):
File "/usr/local/lib/python2.7/dist-packages/locust/core.py", line 267, in run
self.execute_next_task()
File "/usr/local/lib/python2.7/dist-packages/locust/core.py", line 293, in execute_next_task
self.execute_task(task["callable"], *task["args"], **task["kwargs"])
File "/usr/local/lib/python2.7/dist-packages/locust/core.py", line 305, in execute_task
task(self, *args, **kwargs)
File "/home/webapp/LoadTest/locustfile.py", line 31, in load_page
url = random.choice(self.urls_on_current_page)
File "/usr/lib/python2.7/random.py", line 273, in choice
return seq[int(self.random() * len(seq))] # raises IndexError if seq is empty
IndexError: list index out of range

Answer 1

Your list may be empty.
#task(30)
def load_page(self):
if self.urls_on_current_page:
url = random.choice(self.urls_on_current_page)
r = self.client.get(url)

Answer 2

I takes time but someone may need this. My findings in your code: login requests seems not correct (check mine if correct), you cannot reach a variable defined inside of a function from another function, giving task(10) is not suitable for data setter function. Set urls_on_current_page as a class variable to serve for other class members. See my code and comment:
import random
from locust import HttpLocust, TaskSet, task
from pyquery import PyQuery
class WalkPages(TaskSet):
# define variable here to access them from inside the functions
urls_on_current_page = []
def login(self):
self.client.post("/login", data = {"UserName": "mesutgunes#email.com", "Password": "password"})
def get_urls(self):
r = self.client.get("/Dashboard.mvc")
pq = PyQuery(r.content)
link_elements = pq("a")
for link in link_elements:
if key in link.attrib and "http" not in link.attrib[key]:
# there maybe external link on the page
self.urls_on_current_page.append(link.attrib[key])
def on_start(self):
self.login()
self.get_urls()
#task(30)
def load_page(self):
url = random.choice(self.urls_on_current_page)
r = self.client.get(url)
class AwesomeUser(HttpLocust):
task_set = WalkPages
host = "https://myenv.beta.webapp.com"
min_wait = 20 * 1000
max_wait = 60 * 1000