s ```TEST_CASE```s and ```SUBCASE```s. As such there is nothing enforcing the correct sequencing of these macros - that's up to the programmer!

Note that when using the [`--test-case=<filters>`](https://github.com/doctest/doctest/blob/master/doc/markdown/commandline.html) command line option (or `--subcase=<filters>`) you will have to pass the prefix `Scenario: ` as well.

## Test fixtures

Although **doctest** allows you to group tests together as subcases within a test case, it can still be convenient, s