Commit 3e6a5cf0 authored by Rémy Coutable's avatar Rémy Coutable

Merge branch 'rs-document-timecop' into 'master'

Document Timecop usage for time-sensitive tests

See merge request !9383
parents c63016a3 ec326254
......@@ -95,6 +95,25 @@ so we need to set some guidelines for their use going forward:
[lets-not]: https://robots.thoughtbot.com/lets-not
### Time-sensitive tests
[Timecop](https://github.com/travisjeffery/timecop) is available in our
Ruby-based tests for verifying things that are time-sensitive. Any test that
exercises or verifies something time-sensitive should make use of Timecop to
prevent transient test failures.
Example:
```ruby
it 'is overdue' do
issue = build(:issue, due_date: Date.tomorrow)
Timecop.freeze(3.days.from_now) do
expect(issue).to be_overdue
end
end
```
### Test speed
GitLab has a massive test suite that, without parallelization, can take more
......
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