Our seat count calculation is different for guest user than normal users
(a number of initial guests are free, and additional marginal guests are
worth 1/5 of a seat) - so these checks we apply when a user is being
invited or signing up need to know whether it's a guest or non-guest
being added.
This is a simple generalization of get_latest_seat_count and is useful
for calculating "what will be the realm's license count if this
number of (guest) users is added?" without duplicating any of the math
logic. Will be used in the next commits.
Our billing FAQ says:
"For an organization with N other users, 5*N guest users are included at
no extra charge. After that, you will be charged at 1/5 of your regular
per-user pricing for each additional guest.".
It wasn't quite intuitive to me that
max(non_guests, math.ceil(guests / 5)) achieves that pricing, so it's
worth mentioning in a comment that it does and that that's why that
formula is used.
`extra_data` as a `TextField` expects a `str`, but we had been passing
`dict` instead. This is a temporary solution before #18391 to fix the
type annotation.
Signed-off-by: Zixuan James Li <p359101898@gmail.com>
When being called, the wrapped function is passed `PaymentIntent`
(the `content_object` of `Event`). With that, since `customer` can be
`None`, an assertion is also required.
Signed-off-by: Zixuan James Li <p359101898@gmail.com>
This is an unused argument. We removed it so that we don't
need to create a `TypedDict` and unpack it when calling
the test client methods.
Signed-off-by: Zixuan James Li <p359101898@gmail.com>
Since `HttpResponse` is an inaccurate representation of the
monkey-patched response object returned by the Django test client, we
replace it with `_MonkeyPatchedWSGIResponse` as `TestHttpResponse`.
This replaces `HttpResponse` in zerver/tests, analytics/tests, coporate/tests,
zerver/lib/test_classes.py, and zerver/lib/test_helpers.py with
`TestHttpResponse`. Several files in zerver/tests are excluded
from this substitution.
This commit is auto-generated by a script, with manual adjustments on certain
files squashed into it.
This is a part of the django-stubs refactorings.
Signed-off-by: Zixuan James Li <p359101898@gmail.com>
Adds request as a parameter to json_success as a refactor towards
making `ignored_parameters_unsupported` functionality available
for all API endpoints.
Also, removes any data parameters that are an empty dict or
a dict with the generic success response values.
Given that these values are uuids, it's better to use UUIDField which is
meant for exactly that, rather than an arbitrary CharField.
This requires modifying some tests to use valid uuids.
Now that we pass in the UserProfile.id in the metadata to Stripe's
PaymentIntent objects, we no longer need to retrieve the user via
delivery_email. It makes more sense to just fetch the user by ID
and then get the latest delivery_email directly.
Note that an update to Stripe's fixtures is not necessary here
since a previous commit already modified the metadata passed to
both stripe.Session/PaymentIntent objects.
Previously, our Stripe webhook event handler code retrieved the
user's email from Stripe using the stripe.Customer.email attribute.
This led to situations such that whenever the email that Stripe had
did not correspond to a UserProfile in Zulip, the payment flow
failed since we couldn't find a UserProfile associated with the
given email.
Now, we pass in the UserProfile.id in the metadata to Stripe's
checkout Session object, so that we can fetch the correct email
in future Stripe requests.
After the Stripe migration to the hosted checkout page, we were
missing one fixture for the test for switching from Standard to
Plus. This commit updates the fixtures for that particular test.
This is a follow-up to #19752. The tests in that PR did not verify
that the financial math involved worked properly. This commit
improves the existing tests and adds new fixtures to make sure
that the financial math works as expected.
It is confusing to have the plan type constants not be namespaced
by the thing they represent. We already have a namespacing
convention in place for constants, so we should use it for
Realm.plan_type as well.
compute_plan_parameters assumed that the value of
tier is always CustomerPlan.STANDARD. We change that behavior
to make the function handle CustomerPlan.PLUS as well.
We ran into a bug in production caused by two issues:
- Some users came from orgs that didn't have a website and since
the URL field was required, they submitted invalid URLs.
- We didn't properly respond to invalid form submissions, which
led to UnboundLocalError exceptions in another part of the
code.
This commit solves this by doing the following:
- We now allow blank URLs and have a convenient placeholder text
label that tells users that they may leave the URL field blank.
- This commit refactors the code such that invalid form submissions
result in an informative error message about what exactly went
wrong.
These changes are all independent of each other; I just didn’t feel
like making dozens of commits for them.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
The locally defined NamedTuple was triggering a mypy caching bug
(https://github.com/python/mypy/issues/10913), and we don’t use the
tuple behavior anyway.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
When calling some functions or assigning values to certain attributes,
the arguments/right operand do not match the exact type that the
functions/attributes expect, and thus we fix that by converting types
beforehand.
This fixes a batch of mypy errors of the following format:
'Item "None" of "Optional[Something]" has no attribute "abc"
Since we have already been recklessly using these attritbutes
in the tests, adding assertions beforehand is justified presuming
that they oughtn't to be None.
This upgrades the Stripe API to the most recent version. Going through
the Git history, it looks like our current API version is at 2019-03-14.
The API version should be manually changed in Stripe dashboard at the same
time as the commit is deployed in production.
Backward incompatible changes that are relevant to our codebase between
(2019-03-14, 2020-08-27].
* 2020-08-27 - The `sources` property on Customers is no longer included by
default.
* 2020-03-02 - Nothing applicable
* 2019-12-03 - The `id` field of all invoice line items have changed and are
now prefixed
with `il_`. We only rely on this while we normalize the fixtures.
* 2019-11-05 - Nothing applicable
* 2019-10-17 - The `billing` attribute on invoices, subscriptions, and
subscription schedules is renamed to`collection_method`. The invoice
change is the one that is relevant to us.
* The customer object’s `account_balance` value has been renamed to
`balance`. Only used for the stubs at the moment.
* 2019-10-08 - Nothing applicable
* 2019-09-09 - Nothing applicable
* 2019-08-14 - Nothing applicable
* 2019-05-16 - Nothing applicable
https://stripe.com/docs/upgrades
Also normalize the following IDs in stripe fixtures
* price_[A-Za-z0-9]{24}
* prod_[A-Za-z0-9]{14}
* pi_[A-Za-z0-9]{24}
* il_[A-Za-z0-9]{24}
Previously, we only downgraded and voided small organizations behind
payments only if they had an active plan.
This left us with a bunch of invoices from small realms which used to
have an active plan. It doesn't make much sense for us to get these
realms to pay the invoices so we have decided to just void them. This
commit voids the open invoices of all the small realms without an active
plan and has the last invoice open. Unlike, the realms with an active
plan we don't email them about us voiding the invoice. It's not super
obvious whether Stripe sends an email to the customer when the Invoice
is voided. But they do get the message that the invoice is voided if
they try to pay the invoice through the hosted invoice page.
This avoid some duplicate code as well as improve the readability since
before we were checking for the expected values far away from the
definition of realm. Now we define the expected values right after the
realm definition which improves the code readability.
Also, this get removes the postfixing of realm variable names with numbers.
The postfixing is kind of mess since if we want add any new realm in between
the realms we need to renumber a lot of realm variables.
An additional check for whether customer.stripe_customer_id is
None is added to the function. That check was not really required before
since all the customers with a plan also have a valid value for
stripe_customer_id. So all the calls to stripe.Invoice.list would have
non None value for customer argument.
Even though that is the case, mypy should still have complained about
the possibility of customer.stripe_customer_id being None when passed to
stripe.Invoice.list as customer paramater since mypy don't know that
customers with a plan will always have a non empty value for
stripe_customer_id. Our stripe stubs expect a non empty value for
the customer parameter of stripe.Invoice.list. This is despite the
fact that stripe.Invoice.list can actually be called with customer set
to None. This returns the invoices from the entire organization.
Though, we still decided to ensure that the value of customer should be
non empty since there is no reason for us to ever call this function
with customer set to None. You can just call the function wuthout the
customer argument instead. So this requirement of a non None customer
paramater is useful for catching bugs.
The reason mypy didn't complain was because the type of
Customer.objects.all() is Any and not QuerySet[Customer]. So mypy has no
idea that customer.stripe_customer_id can be theoratically None even
though it was not possible in this [articular case as explained before.
I verified that this was the reason mypy didn't complain by using the
reveal_type function on Customer.objects.all() and the customer object.
After the refactoring it's super to obvious to mypy that the type of the
customer is Customer since it's mentioned in the function defintion. So it
was able to complain about the possibility of customer.stripe_customer_id
being None after the refactoring.
This is a prep commit for the Stripe checkout migration.
The Stripe migration commit adds a lot of new view functions. Keeping
all of the views in one view file makes it super hard for readbability.
So creating a new views folder and splitting the existing view file into
two so that we minimize the changes in the big migration commit.
This makes sure that organizations as tagged with the user-volunteered
organization type in the sponsorship request, in the event that it
differs from what was entered during realm creation.
This makes several changes:
* Fixes a bug where the help text explaining our policies was not displayed.
* No help text was defined for many organization types.
* Copy-edits the help text somewhat.
* Offers all of the organization type options.
* Removes the 100% coverage requirement because it's annoying to test
the e.currentTarget click handler.
We are starting to run into situations where this data could be
quite useful for making future decisions, so it makes to store it
in the database, not just in an email.
This function had a confusing name, which could result in someone
using it unintentionally when they meant do_reactivate_user.
We also add docstrings for both functions.
This should have been in https://github.com/zulip/zulip/pull/18066.
The reason, the tests were not failing inspite of the params being
json encoded was because pretty much all these tests did not test
the functionality of the endpoint. Rather they were testing things
like whether the user has the right to access the endpoint and all.
So the value of the params did not matter.
The only one test which is an exception is test_replace_payment_source.
Even though a json encoded token was passed to an endpoint that
expecteda string, the test continued to work becausethe fixtures were
not updated for the test in that PR, so instead of sending an incorrect
json encoded token to stripe endpoint it was sending the correct string
token. Now that we removed the json.dumps of token, we no longer have to
update the fixtures.
I have run the tests with --generate-stripe-fixtures set to True and all
the tests are passing. Not including the fixture changes since the tests
conntinue to work the same with both the existing and new fixtures.
Billing system uses delivery_email instead of email. We used to make
the email address visible to everyone in tests which means the value
of email and delivery_email is the same. This commit disables that
so that we can distinguish between email and delivery_email in tests.
An organization with at most 5 users that is behind on payments isn't
worth spending time on investigating the situation.
For larger organizations, we likely want somewhat different logic that
at least does not void invoices.
stripe.Invoice.list by default would only get 10 invoices at a
time. So a function like this would be really handy if we have
to go through a lot of invoices.
This also means void_all_open_invoices used to void only the last
10 invoices. The main reason we implemented this function was to
void the invoices generated by realms on free trial so I don't
think there were cases where we had to void realms with more than
10 invoices.
This also fixes a bug in void_all_open_invoices function. If a realm
with a local Customer object but without an associated stripe.Customer
is passed to void_all_open_invoices, then the function will end up
voiding the last 10 invoices created by billing system instead of voiding
no invoices at all. This is because stripe.Invoice.list(customer=None)
return last 10 invoices across all customers.
But this bug won't cauuse any issue in production since
void_all_open_invoices can be only invoked from /support page. And we
show the option to void invoices in support page only if the realm
has a paid plan. And it's not really possible for a realm to have
a paid plan without having an associated stripe_customer_id. Plus I
went through the void events in stripe stream since the PR to add
void invoices was merged and there does not seems to be any suspicious
events.
JsonableError has two major benefits over json_error:
* It can be raised from anywhere in the codebase, rather than
being a return value, which is much more convenient for refactoring,
as one doesn't potentially need to change error handling style when
extracting a bit of view code to a function.
* It is guaranteed to contain the `code` property, which is helpful
for API consistency.
Various stragglers are not updated because JsonableError requires
subclassing in order to specify custom data or HTTP status codes.
django.utils.translation.ugettext is a deprecated alias of
django.utils.translation.gettext as of Django 3.0, and will be removed
in Django 4.0.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
This makes it much more clear that this feature does JSON encoding,
which previously was only indicated in the documentation.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
This adds the is_user_active with the appropriate code for setting the
value correctly in the future. In the following commit a migration to
backfill the value for existing Subscriptions will be added.
To ensure correct user_profile.is_active handling also in tests, we
replace all direct .is_active mutation with calls to appropriate
functions.
This commit migrates some of the backend tests to use assertLogs(),
instead of mock.patch() as planned in #15331.
Tweaked by tabbott to avoid tautological assertions.
There were some tests that had mock patches for logging, although no
logging was actually happening there. This commit removes such patches
in `corporate/tests/test_stripe.py`, `zerver/tests/test_cache.py`,
`zerver/tests/test_queue_worker.py`,
and `zerver/tests/test_signup.py`.
Prefer using `assert_called_once` to protect against places where a
mock might be reused, and in so doing have been previously called,
thus making the second usage of `assert_called` not assert anything of
note.
Problems with the card itself should not be logged as errors -- while
perhaps notable in aggregate, they are not worthy of being logged to
Sentry, for instance.
Downgrade these to `info`; continue to log other problems at the
`error` level. This updates tests for this change, and in so doing
corrects a test that does not do its job, due to a missing
`reset_mock`.
There are three functional side effects:
• Correct an insignificant but mathematically offensive bias toward
repeated characters in generate_api_key introduced in commit
47b4283c4b4c70ecde4d3c8de871c90ee2506d87; its entropy is increased
from 190.52864 bits to 190.53428 bits.
• Use the base32 alphabet in confirmation.models.generate_key; its
entropy is reduced from 124.07820 bits to the documented 120 bits, but
now it uses 1 syscall instead of 24.
• Use the base32 alphabet in get_bigbluebutton_url; its entropy is
reduced from 51.69925 bits to 50 bits, but now it uses 1 syscall
instead of 10.
(The base32 alphabet is A-Z 2-7. We could probably replace all of
these with plain secrets.token_urlsafe, since I expect most callers
can handle the full urlsafe_b64 alphabet A-Z a-z 0-9 - _ without
problems.)
Signed-off-by: Anders Kaseorg <anders@zulip.com>
The exception trace only goes from where the exception was thrown up
to where the `logging.exception` call is; any context as to where
_that_ was called from is lost, unless `stack_info` is passed as well.
Having the stack is particularly useful for Sentry exceptions, which
gain the full stack trace.
Add `stack_info=True` on all `logging.exception` calls with a
non-trivial stack; we omit `wsgi.py`. Adjusts tests to match.
A few major themes here:
- We remove short_name from UserProfile
and add the appropriate migration.
- We remove short_name from various
cache-related lists of fields.
- We allow import tools to continue to
write short_name to their export files,
and then we simply ignore the field
at import time.
- We change functions like do_create_user,
create_user_profile, etc.
- We keep short_name in the /json/bots
API. (It actually gets turned into
an email.)
- We don't modify our LDAP code much
here.
There seems to have been a confusion between two different uses of the
word “optional”:
• An optional parameter may be omitted and replaced with a default
value.
• An Optional type has None as a possible value.
Sometimes an optional parameter has a default value of None, or None
is otherwise a meaningful value to provide, in which case it makes
sense for the optional parameter to have an Optional type. But in
other cases, optional parameters should not have Optional type. Fix
them.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
Fixes#2665.
Regenerated by tabbott with `lint --fix` after a rebase and change in
parameters.
Note from tabbott: In a few cases, this converts technical debt in the
form of unsorted imports into different technical debt in the form of
our largest files having very long, ugly import sequences at the
start. I expect this change will increase pressure for us to split
those files, which isn't a bad thing.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
Automatically generated by the following script, based on the output
of lint with flake8-comma:
import re
import sys
last_filename = None
last_row = None
lines = []
for msg in sys.stdin:
m = re.match(
r"\x1b\[35mflake8 \|\x1b\[0m \x1b\[1;31m(.+):(\d+):(\d+): (\w+)", msg
)
if m:
filename, row_str, col_str, err = m.groups()
row, col = int(row_str), int(col_str)
if filename == last_filename:
assert last_row != row
else:
if last_filename is not None:
with open(last_filename, "w") as f:
f.writelines(lines)
with open(filename) as f:
lines = f.readlines()
last_filename = filename
last_row = row
line = lines[row - 1]
if err in ["C812", "C815"]:
lines[row - 1] = line[: col - 1] + "," + line[col - 1 :]
elif err in ["C819"]:
assert line[col - 2] == ","
lines[row - 1] = line[: col - 2] + line[col - 1 :].lstrip(" ")
if last_filename is not None:
with open(last_filename, "w") as f:
f.writelines(lines)
Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
Fixes this error in the dev environment:
$ ./manage.py checkconfig
Error: You must set ZULIP_ADMINISTRATOR in /etc/zulip/settings.py.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
Generated by pyupgrade --py36-plus --keep-percent-format, but with the
NamedTuple changes reverted (see commit
ba7906a3c6, #15132).
Signed-off-by: Anders Kaseorg <anders@zulip.com>
datetime.timezone is available in Python ≥ 3.2. This also lets us
remove a pytz dependency from the PostgreSQL scripts.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
mock is just a backport of the standard library’s unittest.mock now.
The SAMLAuthBackendTest change is needed because
MagicMock.call_args.args wasn’t introduced until Python
3.8 (https://bugs.python.org/issue21269).
The PROVISION_VERSION bump is skipped because mock is still an
indirect dev requirement via moto.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
This fixes a minor regression in a very recent
commit.
In 7ad5bea3e6 I was
a little too aggressive about deactivating users.
We do want a few users who are outside the realm,
just to prevent regressions where we fail to filter
on realm. The likelihood of such regressions are
fairly low, but it would certainly be an ugly bug.
Without this change, you could get obscure
failures when logging in as Cordelia if you
modified test data by doing something
fairly innocuous like adding a new test user.
Also the complicated query here to exclude
users was flaky, since it didn't explicitly
order by any field before doing the 'LIMIT 6'.
Part of the problem with debugging this flake
was that the failure would happen for the login,
but the data actually gets changed in `setUp,
which is easy to overlook, since it's not
explicitly invoked.
We continue to keep the seat_count set to
a constant, predictable value, since some
tests are very sensitive to having 6 users.
These fixtures were added in 4aa2ac1b52.
The fixture name mentions renewal as the test function name. But we
don't have any function called test_renewal in test_stripe file. This
likely means the fixtures were accidentally added. Also, deleting all
fixtures and running --generate-stripe-fixtures don't result in these
fixtures getting generated as well.
If make_end_of_cycle_updates_if_needed returns None it means the current
plan has been ended. So we should change the value of variable plan_name
only if last_ledger_entry is not None.
Generated by `pyupgrade --py3-plus --keep-percent-format` on all our
Python code except `zthumbor` and `zulip-ec2-configure-interfaces`,
followed by manual indentation fixes.
Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
This will otherwise throw error when the billing page is accessed
after a plan is expired. A proper followup would be to not show
licenses, licenses_used etc if the current plan is on Limited.
We try to use the correct variation of `email`
or `delivery_email`, even though in some
databases they are the same.
(To find the differences, I temporarily hacked
populate_db to use different values for email
and delivery_email, and reduced email visibility
in the zulip realm to admins only.)
In places where we want the "normal" realm
behavior of showing emails (and having `email`
be the same as `delivery_email`), we use
the new `reset_emails_in_zulip_realm` helper.
A couple random things:
- I fixed any error messages that were leaking
the wrong email
- a test that claimed to rely on the order
of emails no longer does (we sort user_ids
instead)
- we now use user_ids in some place where we used
to use emails
- for IRC mirrors I just punted and used
`reset_emails_in_zulip_realm` in most places
- for MIT-related tests, I didn't fix email
vs. delivery_email unless it was obvious
I also explicitly reset the realm to a "normal"
realm for a couple tests that I frankly just didn't
have the energy to debug. (Also, we do want some
coverage on the normal case, even though it is
"easier" for tests to pass if you mix up `email`
and `delivery_email`.)
In particular, I just reset data for the analytics
and corporate tests.
We now have this API...
If you really just need to log in
and not do anything with the actual
user:
self.login('hamlet')
If you're gonna use the user in the
rest of the test:
hamlet = self.example_user('hamlet')
self.login_user(hamlet)
If you are specifically testing
email/password logins (used only in 4 places):
self.login_by_email(email, password)
And for failures uses this (used twice):
self.assert_login_failure(email)
This specifically fixes an issue where a customer chose monthly payment
plan instead of annual, getting stuck with the higher monthly payments.
With this change, the Customer plan can be set to ENDED and they can go
through /upgrade/ again and choose annual payments.
A proper follow-up should be to make it possible to change between
monthly/annual on the /billing/ page.
Django 2.2.x is the next LTS release after Django 1.11.x; I expect
we'll be on it for a while, as Django 3.x won't have an LTS release
series out for a while.
Because of upstream API changes in Django, this commit includes
several changes beyond requirements and:
* urls: django.urls.resolvers.RegexURLPattern has been replaced by
django.urls.resolvers.URLPattern; affects OpenAPI code and related
features which re-parse Django's internals.
https://code.djangoproject.com/ticket/28593
* test_runner: Change number to suffix. Django changed the name in this
ticket: https://code.djangoproject.com/ticket/28578
* Delete now-unnecessary SameSite cookie code (it's now the default).
* forms: urlsafe_base64_encode returns string in Django 2.2.
https://docs.djangoproject.com/en/2.2/ref/utils/#django.utils.http.urlsafe_base64_encode
* upload: Django's File.size property replaces _get_size().
https://docs.djangoproject.com/en/2.2/_modules/django/core/files/base/
* process_queue: Migrate to new autoreload API.
* test_messages: Add an extra query caused by .refresh_from_db() losing
the .select_related() on the Realm object.
* session: Sync SessionHostDomainMiddleware with Django 2.2.
There's a lot more we can do to take advantage of the new release;
this is tracked in #11341.
Many changes by Tim Abbott, Umair Waheed, and Mateusz Mandera squashed
are squashed into this commit.
Fixes#10835.
This is a preparatory commit for using isort for sorting all of our
imports, merging changes to files where we can easily review the
changes as something we're happy with.
These are also files with relatively little active development, which
means we don't expect much merge conflict risk from these changes.
Then, find and fix a predictable number of previous misuses.
With a small change by tabbott to preserve backwards compatibility for
sending `yes` for the `forged` field.
Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
MigrationsTestCase is intentionally omitted from this, since migrations
tests are different in their nature and so whatever setUp()
ZulipTestCase may do in the future, MigrationsTestCase may not
necessarily want to replicate.
This sidesteps tricky escaping issues, and will make it easier to
build a strict Content-Security-Policy.
Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
Only CustomerPlan.ACTIVE is being used in the code / in production, so don't
need a db migration to move the other CustomerPlan.status constants around.
Previously, when users got a "payment failed" email from Stripe (e.g. if
their card failed on renewal), they would enter in a new card on
/billing#payment-method, and wouldn't find out if the card worked till
Stripe retried the payment 4 days later.
This is a major rewrite of the billing system. It moves subscription
information off of stripe Subscriptions and into a local CustomerPlan
table.
To keep this manageable, it leaves several things unimplemented
(downgrading, etc), and a variety of other TODOs in the code. There are also
some known regressions, e.g. error-handling on /upgrade is broken.
A lot of the seemingly unrelated test fixture changes are because we're
removing a query to stripe in the upgrade path, in cases when the user's
realm has an existing Customer object.
The fixture changes are because self.upgrade formerly used to cause a page load
of /billing, which in turn calls Customer.retrieve.
If we ran the full test suite with GENERATE_STRIPE_FIXTURES=True, we would
likely see several more Customer.retrieve.N.json's being deleted. But
keeping them there for now to keep the diff small.
f52e9d1 ended up not going far enough. Keeping f52e9d1 in place in case we
ever want to go back to that sort of solution.
Also removes the keep argument from test_billing_quantity_changes_end_to_end,
since that test is actually testing the arguments to
stripe.Subscription.save(), not what is returned by Stripe.
Reran every test with GENERATE_STRIPE_FIXTURES = True, which also caused a
few fixtures to get updates unrelated to these changes (likely due to API
updates that hadn't been previously applied).
When we started the billing system we started by following conventions used
in the Stripe documentation, but in hindsight it makes more sense to follow
conventions used in the Zulip codebase.
This used to be a more likely codepath, before we introduced
Customer.has_billing_relationship. It is no longer literally impossible to
hit this race condition, so I'm not deleting the code, but it's unlikely
enough that it's not worth figuring out how to test it.
Already better tested by the upgrade and downgrade tests using mock_stripe.
Note that the line that was removed is actually not possible to reach, since
canceled subscriptions aren't shown on the Customer object.
Also fixes a bug in process_initial_upgrade. If you have a card on file
(e.g. from a previous subscription), and try to upgrade by billing by
invoice, neither the if nor the elif condition applies.
There is no attribute called plan_interval. The reason
this was missed by mypy is moost likely due to us using
Any instead of Subscription in extract_current_subscription.
Was hoping to do this after adding timestamp normalization to
normalize_fixture_data, which would have turned this into a <10 line
diff. There is a potentially material change in this API upgrade though
(around how invoices are handled), so just doing it now.
Without the cast mypy raises the following error:
Incompatible return value type (got "Callable[..., Any]",
expected "CallableT")
This is a known issue: https://github.com/python/mypy/issues/1927
This makes a few other changes to the fixtures as well. Most are from API
updates, though I'm not sure why "Zulip Cloud Standard" got changed to
"Zulip Cloud Premium".
[Substantial edits by Rishi Gupta]