Spek 2.x example in maven kotlin project

mvn clean ; mvn test -U ; mvn versions:display-property-updates

Read 1.x -> 2.x migration guide for details

NOTE:

for some reasons we have to use deprecated API from
org.junit.platform:junit-platform-surefire-provider:1.3.2
dependency:

 +-------------------------------------------------------------------------------+
 | WARNING:                                                                      |
 | The junit-platform-surefire-provider has been deprecated and is scheduled to  |
 | be removed in JUnit Platform 1.4. Please use the built-in support in Maven    |
 | Surefire >= 2.22.0 instead.                                                   |
 | » https://junit.org/junit5/docs/current/user-guide/#running-tests-build-maven |
 +-------------------------------------------------------------------------------+

But seems like it's okay...

see branches:

• 1.x
• 2.x