Issue 4814 - Adds csv log to formmail2

sitescripts/formmail/test/test_formmail2.py

 # This file is part of the Adblock Plus web scripts,
 # Copyright (C) 2006-2017 eyeo GmbH
 #
 # Adblock Plus is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 3 as
 # published by the Free Software Foundation.
 #
 # Adblock Plus is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 # GNU General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
 # along with Adblock Plus.  If not, see <http://www.gnu.org/licenses/>.
+
 from urllib import urlencode
 from urllib2 import urlopen, HTTPError
+from csv import DictReader
 
 import pytest
 from wsgi_intercept import (urllib_intercept, add_wsgi_intercept,
                             remove_wsgi_intercept)
 
 from sitescripts.formmail.web import formmail2
 
+HOST = 'test.local'
+LOG_PORT = 80
+NO_LOG_PORT = 81
 
-@pytest.fixture()
-def form_config():
+
+@pytest.fixture
+def log_path(tmpdir):
+    return str(tmpdir.join('test.csv_log'))
+
+
+@pytest.fixture
+def log_form_config():
     return formmail2.conf_parse(formmail2.get_config_items())['test']
 
 
-@pytest.fixture()
-def form_handler(form_config):
-    return formmail2.make_handler('test', form_config)[1]
+@pytest.fixture
+def form_config():
+    config = formmail2.conf_parse(formmail2.get_config_items())['test']
+    del config['csv_log']
+    return config
+
+
+@pytest.fixture
+def form_handler(log_path, form_config, log_form_config):
+    """ Create two handlers, one that logs and another that doesn't """
+    log_form_config['csv_log'].value = log_path
+    return (formmail2.make_handler('test', log_form_config)[1],
+            formmail2.make_handler('test', form_config)[1])
 
 
 # We make this a fixture instead of a constant so we can modify it in each
 # test as needed without affecting other tests.
 @pytest.fixture
 def form_data():
     return {
         'email': 'john_doe@gmail.com',
         'mandatory': 'john_doe@gmail.com',
         'non_mandatory_message': 'Once upon a time\nthere lived a king.',
-        'non_mandatory_email': 'test@test.com'
+        'non_mandatory_email': 'test@test.com',
     }
 
 
-@pytest.fixture()
+@pytest.fixture
 def response_for(form_handler):
-    host, port = 'test.local', 80
+    """ Registers two intercepts, returns responses for them based on bool """
     urllib_intercept.install_opener()
-    add_wsgi_intercept(host, port, lambda: form_handler)
-    url = 'http://{}:{}'.format(host, port)
+    add_wsgi_intercept(HOST, LOG_PORT, lambda: form_handler[0])
+    add_wsgi_intercept(HOST, NO_LOG_PORT, lambda: form_handler[1])
 
-    def response_for(data):
+    def response_for(data, log=False):
+        if log:
+            url = 'http://{}:{}'.format(HOST, LOG_PORT)
+        else:
+            url = 'http://{}:{}'.format(HOST, NO_LOG_PORT)
         if data is None:
             response = urlopen(url)
         else:
             response = urlopen(url, urlencode(data))
         return response.code, response.read()
 
     yield response_for
     remove_wsgi_intercept()
 
 
-def test_form_handler_email_errors(form_config):
-    tmp_config = form_config
-    del tmp_config['url'].value
-    with pytest.raises(Exception) as error:
-        formmail2.make_handler('test', tmp_config)[1]
-    assert error.value.message == 'No URL configured for form handler: test'
+@pytest.fixture
+def sm_mock(mocker):
+    return mocker.patch('sitescripts.formmail.web.formmail2.sendMail')
 
 
-def test_form_handler_field_errors(form_config):
-    tmp_config = form_config
-    tmp_config['fields'] = {}
+@pytest.mark.parametrize('key,message', [
+    ('url', 'No URL configured for form handler: test'),
+    ('fields', 'No fields configured for form handler: test'),
+    ('template', 'No template configured for form handler: test'),
+])
+def test_config_errors(key, message, form_config):
+    del form_config[key]
     with pytest.raises(Exception) as error:
-        formmail2.make_handler('test', tmp_config)[1]
-    assert error.value.message == 'No fields configured for form handler: test'
+        formmail2.make_handler('test', form_config)[1]
+    assert error.value.message == message
 
-    del tmp_config['fields']
+
+@pytest.mark.parametrize('field,message', [
+    (('new_field', 'foo'), 'Unexpected field/fields: new_field'),
+    (('mandatory', ''), 'No mandatory entered'),
+    (('non_mandatory_email', 'asfaf'), 'Invalid email'),
+    (('email', 'asfaf'), 'You failed the email validation'),
+    (('email', ''), 'You failed the email test'),
+])
+def test_http_errs(field, message, response_for, form_data, sm_mock):
+    key, value = field
+    form_data[key] = value
+    with pytest.raises(HTTPError) as error:
+        response_for(form_data)
+    assert error.value.read() == message
+
+
+@pytest.mark.parametrize('field,expected', [
+    (('non_mandatory_message', '\xc3\xb6'), (200, '')),
+    (('non_mandatory_message', ''), (200, '')),
+])
+def test_success(field, expected, log_path, response_for, form_data, sm_mock):
+    key, value = field
+    form_data[key] = value
+    assert response_for(form_data, log=False) == expected
+    assert sm_mock.call_count == 1
+
+    params = sm_mock.call_args[0][1]['fields']
+    assert set(params.keys()) == set(form_data.keys())
+    for key, value in form_data.items():
+        assert params[key] == value.decode('utf8')
+
+    assert response_for(form_data, log=True) == expected
+    assert sm_mock.call_count == 2
+
+    assert response_for(form_data, log=True) == expected
+    assert sm_mock.call_count == 3
+
+    with open(log_path) as log_file:
+        reader = DictReader(log_file)
+        row = reader.next()
+        # rows should not be equal because the time field
+        # is added by the logging function.
+        assert row != reader.next()
+
+
+def test_config_field_errors(form_config):
+    form_config['fields'] = {}
     with pytest.raises(Exception) as error:
-        formmail2.make_handler('test', tmp_config)[1]
+        formmail2.make_handler('test', form_config)[1]
     assert error.value.message == 'No fields configured for form handler: test'
 
 
-def test_form_handler_template_errors(form_config):
-    tmp_config = form_config
-    tmp_config['template'].value = 'no'
+def test_config_template_errors(form_config):
+    form_config['template'].value = 'no'
     with pytest.raises(Exception) as error:
-        formmail2.make_handler('test', tmp_config)[1]
-    assert error.typename == 'TemplateNotFound'
-
-    del tmp_config['template'].value
-    with pytest.raises(Exception) as error:
-        formmail2.make_handler('test', tmp_config)[1]
-    assert error.value.message == ('No template configured for form handler'
-                                   ': test')
-    del tmp_config['template']
-    with pytest.raises(Exception) as error:
-        formmail2.make_handler('test', tmp_config)[1]
-    assert error.value.message == ('No template configured for form handler'
-                                   ': test')
+        formmail2.make_handler('test', form_config)[1]
+    assert error.value.message == 'Template not found at: no'
 
 
 def test_config_parse(form_config):
     assert form_config['url'].value == 'test/apply/submit'
     assert form_config['fields']['email'].value == 'mandatory, email'
 
 
-def test_success(response_for, form_data, mocker):
-    sm_mock = mocker.patch('sitescripts.formmail.web.formmail2.sendMail')
-    assert response_for(form_data) == (200, '')
-    assert sm_mock.call_count == 1
-    params = sm_mock.call_args[0][1]['fields']
-    assert set(params.keys()) == set(form_data.keys())
-    for key, value in form_data.items():
-        assert params[key] == value
+def test_sendmail_fail(log_path, response_for, form_data, sm_mock):
+    sm_mock.side_effect = Exception('Sendmail Fail')
+    with pytest.raises(HTTPError):
+        response_for(form_data, log=True)
+
+    with open(log_path) as log_file:
+        row = DictReader(log_file).next()
+        assert row != form_data
 
 
-def test_non_mandatory_no_msg(response_for, form_data, mocker):
-    mocker.patch('sitescripts.formmail.web.formmail2.sendMail')
-    form_data['non_mandatory'] = ''
-    assert response_for(form_data) == (200, '')
+def test_append_field_err(form_config, form_data, log_path):
+    """ Checks that error logs are correctly written and appended
 
+    Submits three forms, the second two have different fields to the first
+    and should be added to the same log file as each other, and be identical
+    """
+    formmail2.log_formdata(form_data, log_path)
+    del form_data['email']
 
-def test_invalid_email_cstm_msg(response_for, form_data, mocker, form_config):
-    mocker.patch('sitescripts.formmail.web.formmail2.sendMail')
-    form_data['email'] = 'bademail'
-    with pytest.raises(HTTPError) as error:
-        response_for(form_data)
-    assert error.value.read() == 'You failed the email validation'
+    # submit two forms with fields that dont match the config
+    # this should append the second form to the error log file
+    with pytest.raises(Exception):
+        formmail2.log_formdata(form_data, log_path)
+    with pytest.raises(Exception):
+        formmail2.log_formdata(form_data, log_path)
 
-
-def test_valid_nan_mandatory_email(response_for, form_data, mocker):
-    mocker.patch('sitescripts.formmail.web.formmail2.sendMail')
-    form_data['non_mandatory_email'] = 'asfaf'
-    with pytest.raises(HTTPError) as error:
-        response_for(form_data)
-    assert error.value.read() == 'Invalid email'
-
-    del form_data['non_mandatory_email']
-    assert response_for(form_data) == (200, '')
-
-
-def test_mandatory_fail_dflt_msg(response_for, form_data, mocker):
-    mocker.patch('sitescripts.formmail.web.formmail2.sendMail')
-    del form_data['mandatory']
-    with pytest.raises(HTTPError) as error:
-        response_for(form_data)
-    assert error.value.read() == 'No mandatory entered'
+    with open(log_path + '_error') as error_log:
+        reader = DictReader(error_log)
+        assert reader.next() == form_data
+        assert reader.next() == form_data