We were having problems under certain conditions with Travis and
Knapsack where tasks were still being loaded twice and so they were
being executed twice.
When we insert a record in PostgreSQL and we specify the ID, the
internal ID sequence for that table isn't updated.
In order to keep the original IDs so we didn't break any foreign keys,
we specified the IDs when copying the table, resulting in a table having
its ID sequence with a value of an existing record. When trying to
insert a new record, we got a `PG::UniqueViolation` exception.
Updating the sequence after the data migration might not be the most
elegant solution, but it's easy to do and it's already been tested on a
production environment.
Calling `load_tasks` in several files made rails load the tasks several
times, and so they were executed several times when called.
Since the milestone migration can't be executed twice in a row (it would
fail with duplicated ID records), loading the tasks several times made
the milestone migrations task specs fail.
Generalize the BudgetInvestmentStatus model to Milestone::Status so it
is not specific to budget investments, but can be used for any entity
which has milestones. This is in preparation to make the Milestone
model polymorphic and usable by entities other than budget investments.
Resetting sessions and driver is automatically done by requiring
'capybara/rspec', as shown by the (lack of) that configuration for RSpec
in the Capybara README, manual testing of those settings, and Capybara's
code itself.
We were getting an exception when quering[1] for milestones which were not present, due to for example having a publication date later than today
Adding a `try` statement and spec to avoid this situation
[1] 82efc3dd66/app/controllers/budgets/executions_controller.rb (L16)
As mentioned in the comments in PR #1256:
"These failures take place because the checkbox is already present
before clicking in 'under valuation', and so Capybara doesn't have to
wait for the 'under valuation' request to finish before clicking the
checkbox."
So sometimes Capybara tries to check/uncheck the checkbox at the same
time that checkbox is being replaced by the new content, resulting in no
request being sent to the server.
Making Capybara check the page to ensure the new content is already
loaded before checking/unchecking the checkbox solves the problem.
