def test_get_close_db(app):
with app.app_context():
db = get_db()
assert db is get_db()
with pytest.raises(sqlite3.ProgrammingError) as e:
db.execute('SELECT 1')
assert 'closed' in str(e)
def app():
db_fh, db_path = tempfile.mkstemp()
app = create_app({'TESTING': True, 'DATABASE': db_path})
with app.app_context():
init_db() # initialize temp database with tables
get_db().executescript(
_data_sql) # populate temp database with some data
yield app
os.close(db_fh)
os.unlink(db_path)
def index():
db = get_db()
posts = db.execute(
'SELECT p.id, title, body, created, author_id, username FROM'
' post p JOIN user u ON p.author_id = u.id ORDER BY created DESC'
).fetchall()
return render_template('blog/index.html', posts=posts)
def load_logged_in_user():
user_id = session.get('user_id')
if user_id is None:
g.user = None
else:
g.user = get_db().execute('SELECT * FROM user WHERE id = ?',
(user_id, )).fetchone()
def test_delete(auth, app, client):
auth.login()
response = client.post('delete/1')
assert response.headers['Location'] == 'http://localhost/'
with app.app_context():
db = get_db()
post = db.execute('SELECT * FROM post WHERE id = 1').fetchone()
assert post is None
def test_create(client, auth, app):
auth.login()
assert client.get('/create').status_code == 200
client.post('/create', data={'title': "another one", 'body': ""})
with app.app_context():
db = get_db()
count = db.execute("SELECT COUNT(id) FROM post").fetchone()[0]
assert count == 2
def test_register(client, app):
assert client.get('/auth/register').status_code == 200
response = client.post('/auth/register',
data={
'username': '******',
'password': '******'
})
assert "http://localhost/auth/login" == response.headers['Location']
with app.app_context():
assert get_db().execute(
"SELECT * FROM user WHERE username = '******'").fetchone() is not None
def test_author_required(app, client, auth):
# change the post author to another user
with app.app_context():
db = get_db()
db.execute('UPDATE post SET author_id = 2 WHERE id = 1')
db.commit()
auth.login()
#current user can't modify other users' posts
assert client.post('/update/1').status_code == 403
assert client.post('/delete/1').status_code == 403
# current user doesn't see edit link
assert b'href="/update/1"' not in client.get('/').data
def test_update(client, auth, app):
auth.login()
assert client.get('/update/1').status_code == 200
client.post('/update/1',
data={
'title': "Welcome, friend",
"body": "we rock"
})
with app.app_context():
db = get_db()
post = db.execute('SELECT * FROM post WHERE id = 1').fetchone()
assert post['title'] == "Welcome, friend"
assert post['body'] == "we rock"
def get_post(id, check_author=True):
"""Helper function that retrieves a post associated with a given id and
verifies that the it's author is the currently logged in user"""
post = get_db().execute(
"SELECT p.id, title, body, created, author_id, username"
' FROM post p JOIN user u ON p.author_id = u.id'
' WHERE p.id = ?', (id, )).fetchone()
if post is None:
abort(404, "Post id {} doesn't exist".format(id)) # Not found
if check_author and g.user['id'] != post['author_id']:
abort(403) # Forbidden
return post
def create():
if request.method == 'POST':
title = request.form['title']
body = request.form['body']
error = None
if not title:
error = 'Title is required'
if error is not None:
flash(error)
else:
db = get_db()
db.execute(
'INSERT INTO post (title, body, author_id) VALUES(?,?,?)',
(title, body, g.user['id']))
db.commit()
return redirect(url_for('blog.index'))
return render_template('blog/create.html')
def login():
if request.method == 'POST':
username = request.form['username']
password = request.form['password']
error = None
user = get_db().execute('SELECT * FROM user WHERE username = ?',
(username, )).fetchone()
if user is None:
error = 'Incorrect username'
elif not check_password_hash(user['password'], password):
error = "Incorrect password"
if error is None:
session.clear()
session['user_id'] = user['id']
return redirect(url_for('index'))
flash(error)
return render_template('auth/login.html')
def update(id):
post = get_post(id)
if request.method == 'POST':
title = request.form['title']
body = request.form['body']
error = None
if not title:
error = "Title is required."
if error is not None:
flash(error)
else:
db = get_db()
db.execute('UPDATE post SET title = ?, body = ? WHERE id = ?',
(title, body, id))
db.commit()
return redirect(url_for('index'))
return render_template('blog/update.html', post=post)
def register():
if request.method == 'POST':
username = request.form['username']
password = request.form['password']
db = get_db()
error = None
if not username:
error = 'username is required.'
elif not password:
error = 'password is required.'
elif db.execute('SELECT id FROM user WHERE username = ?',
(username, )).fetchone() is not None:
error = 'User {} is already registered.'.format(username)
if error is None:
db.execute('INSERT INTO user (username, password) VALUES (?,?)',
(username, generate_password_hash(password)))
db.commit()
return redirect(url_for('auth.login'))
flash(error)
return render_template('auth/register.html')
def delete(id):
get_post(id)
db = get_db()
db.execute('DELETE FROM post WHERE id = ?', (id, ))
db.commit()
return redirect(url_for('blog.index'))
