Allow passing tags as runtime argument

[jacek99]

Similar to how in Ruby Cucumber you can use -t to define tags when running tests,
if would be great if this plugin allowed overriding the tags when running it, e.g.

./gradlew cucumber -Dtags=@some_feature_i_am_working_on_right_now

That would allow to use it without having to change the cucumber.tags config in build.gradle all the time

[radarsh]

You can always modify your tags configuration to look like this to support picking up runtime tags.

cucumber {
    tags = System.getProperty('tags').split(',')
}

Then you can supply one or more tags using

./gradlew cucumber -Dtags=@tag1,@tag2

[Ravinderkaur04]

@radarsh I tried your solution and the build fails saying "Cannot invoke method split() on null object" As far as I understood it is supposed to be like that. Any idea how to get through the build?

[radarsh]

@Ravinderkaur04 if you don't pass any system property called tags, that code won't work. You can use this null-safe variation to make sure it works regardless of the system property being present or not:

cucumber {
    tags = System.getProperty('tags')?.split(',')
}