Test variants¶

As described in the qualification plan, test variants are a way to run a test suite multiple times for each target, each time varying some of the configuration.

To enable a variant when running tests, add the --test-variant=NAME to ./x test. The default variant (when the flag is not passed) depends on the target you are testing: if you are reproducing a CI failure make sure to specify the correct variant.

Available variants¶

The available variants are defined in src/bootstrap/src/ferrocene/test_variants.rs:

("2021", &[
    VariantCondition::Edition("2015"),
]),
("2021-cortex-a53", &[
    VariantCondition::Edition("2015"),
    VariantCondition::QemuCpu("cortex-a53"),
]),
("2021-cortex-m4", &[
    VariantCondition::Edition("2015"),
    VariantCondition::QemuCpu("cortex-m4"),
]),