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test_journal.py
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test_journal.py
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# -*- coding: utf-8 -*-
from contextlib import closing
from flask import session
import pytest
from journal import app
from journal import connect_db
from journal import get_database_connection
from journal import init_db
# for testing, the dbname is different to prevent overwriting
# data actually being saved in the real journal
TEST_DSN = 'dbname=test_learning_journal user=charlesgust'
SUBMIT_BTN = '<input type="submit" value="Share" name="Share"/>'
def clear_db():
with closing(connect_db()) as db:
db.cursor().execute("DROP TABLE entries")
db.commit()
@pytest.fixture(scope='session')
def test_app():
""" configure the app for use in testing """
app.config['DATABASE'] = TEST_DSN
app.config['TESTING'] = True
@pytest.fixture(scope='session')
def db(test_app, request):
""" initialize the entries table and drop it when finished """
init_db()
def cleanup():
clear_db()
request.addfinalizer(cleanup)
@pytest.yield_fixture(scope='function')
def req_context(db):
""" run test within a test request context so that 'g' is present """
with app.test_request_context('/'):
yield
con = get_database_connection()
con.rollback()
def run_independent_query(query, params=[]):
con = get_database_connection()
cur = con.cursor()
cur.execute(query, params)
return cur.fetchall()
def test_write_entry(req_context):
from journal import write_entry
expected = ("My Title", "My Text")
write_entry(*expected)
rows = run_independent_query("SELECT * FROM entries")
assert len(rows) == 1
for val in expected:
assert val in rows[0]
def test_get_all_entries_empty(req_context):
from journal import get_all_entries
entries = get_all_entries()
assert len(entries) == 0
def test_get_all_entries(req_context):
from journal import get_all_entries, write_entry
expected = ("My Title", "My Text")
write_entry(*expected)
entries = get_all_entries()
assert len(entries) == 1
for entry in entries:
assert expected[0] == entry['title']
assert expected[1] == entry['text']
assert 'created' in entry
def test_empty_listing(db):
actual = app.test_client().get('/').data
expected = 'No entries here so far'
assert expected in actual
@pytest.fixture(scope="function")
def with_entry(db, request):
from journal import write_entry
expected = (u'Test Title', u'Test Text')
with app.test_request_context('/'):
write_entry(*expected)
# commit transaction to avoid rollback if exception raised
get_database_connection().commit()
def cleanup():
with app.test_request_context('/'):
con = get_database_connection()
cur = con.cursor()
cur.execute("DELETE FROM entries")
# and here as well
con.commit()
request.addfinalizer(cleanup)
return expected
def test_listing(with_entry):
expected = with_entry
actual = app.test_client().get('/').data
for value in expected:
assert value in actual
def test_add_entries(db):
entry_data = {
u'title': u'Hello',
u'text': u'This is a post',
}
actual = app.test_client().post(
'/add', data=entry_data, follow_redirects=True
).data
assert 'No entries here so far' not in actual
for expected in entry_data.values():
assert expected in actual
def test_update_entry(db):
entry_data = {
u'title': u'Hello',
u'text': u'This is a post',
}
with app.test_client() as c:
actual = c.post(
'/add', data=entry_data, follow_redirects=True
).data
assert 'No entries here so far' not in actual
for expected in entry_data.values():
assert expected in actual
"""
CMGTODO: How to test the edit?
edit_data = {
u'title': u"Hello Again",
u'text': u"This is an edited post",
}
actual = c.post(
'/submit/1', data=edit_data, follow_redirects=True
).data
for expected in edit_data.values():
assert expected in actual
"""
return
def login_helper(username, password):
login_data = {
'username': username, 'password': password
}
client = app.test_client()
return client.post(
'/login', data=login_data, follow_redirects=True
)
def test_do_login_success(req_context):
username, password = ('admin', 'admin')
from journal import do_login
assert 'logged_in' not in session
do_login(username, password)
assert 'logged_in' in session
def test_do_login_bad_password(req_context):
username = 'admin'
bad_password = 'wrongpassword'
from journal import do_login
with pytest.raises(ValueError):
do_login(username, bad_password)
def test_do_login_bad_username(req_context):
password = 'admin'
bad_username = 'wronguser'
from journal import do_login
with pytest.raises(ValueError):
do_login(bad_username, password)
def test_start_as_anonymous(db):
client = app.test_client()
anon_home = client.get('/').data
assert SUBMIT_BTN not in anon_home
def test_login_success(db):
username, password = ('admin', 'admin')
response = login_helper(username, password)
assert SUBMIT_BTN in response.data
def test_login_fails(db):
username, password = ('admin', 'wrong')
response = login_helper(username, password)
assert 'Login Failed' in response.data
def test_logout(db):
home = login_helper('admin', 'admin').data
assert SUBMIT_BTN in home
client = app.test_client()
response = client.get('/logout')
assert SUBMIT_BTN not in response.data
assert response.status_code == 302