Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Simplify notes on testing and concurrency #38013

Merged
merged 1 commit into from
Dec 25, 2016
Merged

Simplify notes on testing and concurrency #38013

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
9 changes: 4 additions & 5 deletions src/doc/book/testing.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -589,11 +589,10 @@ please see the [Documentation chapter](documentation.html).

# Testing and concurrency

One thing that is important to note when writing tests is that they may be run
concurrently using threads. For this reason you should take care that your tests
are written in such a way as to not depend on each-other, or on any shared
state. "Shared state" can also include the environment, such as the current
working directory, or environment variables.
It is important to note that tests are run concurrently using threads. For this
reason, care should be taken to ensure your tests do not depend on each-other,
or on any shared state. "Shared state" can also include the environment, such
as the current working directory, or environment variables.

If this is an issue it is possible to control this concurrency, either by
setting the environment variable `RUST_TEST_THREADS`, or by passing the argument
Expand Down