`cargo` naturally provides an easy way to run all of your tests!
-```sh
-cargo test
+```shell
+$ cargo test
```
You should see output like this:
-```txt
+```shell
$ cargo test
Compiling blah v0.1.0 (file:///nobackup/blah)
Finished dev [unoptimized + debuginfo] target(s) in 0.89 secs
You can also run tests whose name matches a pattern:
-```sh
-cargo test test_foo
+```shell
+$ cargo test test_foo
```
-```txt
+```shell
$ cargo test test_foo
Compiling blah v0.1.0 (file:///nobackup/blah)
Finished dev [unoptimized + debuginfo] target(s) in 0.35 secs