abstract int getVariantCount(List<Map<String,String>> targetMachines)
    abstract List<String> getLinkages()
    abstract List<String> getMainModuleArtifacts(String module, String version)
    abstract List<String> getVariantModuleArtifacts(String variantModuleNameWithVersion)
    abstract TestFile getVariantSourceFile(String module, VariantContext variantContext)

        return 2 * linkages.size() * targetMachines.size() + 1
    }

    @Override
    List<String> getLinkages() {
        return ['Link', 'Runtime']
    }

    @Override
    List<String> getMainModuleArtifacts(String module, String version) {
        return  ["${module}-${version}.pom", "${module}-${version}.module", "${module}-${version}-cpp-api-headers.zip"]
    }

    @Override

        installation.exec().out == app.expectedOutput
    }

    @Override
    List<String> getLinkages() {
        return ['Runtime']
    }

    @Override
    List<String> getMainModuleArtifacts(String module, String version) {
        return ["${module}-${version}.pom", "${module}-${version}.module"]
    }

    @Override
    List<String> getVariantModuleArtifacts(String variantModuleNameWithVersion) {

    }

    @Override
    List<String> getLinkages() {
        return ['Link', 'Runtime']
    }

    @Override
    List<String> getMainModuleArtifacts(String module, String version) {
        return ["${module}-${version}.pom", "${module}-${version}.module", "${module}-${version}-cpp-api-headers.zip"]
    }

    @Override