Making Maven run all tests, even when some fail

I have a project with several modules. When all tests pass, Maven test runs them all.

When tests fail in the first module, maven will not continue to the next project. I have testFailureIgnore set to true in Surefire settings, but it doesn't help.

How do I make maven run all tests regardless of earlier failures?

From the Maven Embedder documentation:

-fae,--fail-at-end Only fail the build afterwards; allow all non-impacted builds to continue

-fn,--fail-never NEVER fail the build, regardless of project result

So if you are testing one module than you are safe using -fae.

Otherwise, if you have multiple modules, and if you want all of them tested (even the ones that depend on the failing tests module), you should run mvn clean install -fn.
-fae will continue with the module that has a failing test (will run all other tests), but all modules that depend on it will be skipped.

I just found the -fae parameter, which causes Maven to run all tests and not stop on failure.