if (feature.isActive()) {
                active.add(feature)
            }
        }
        active
    }

    static def inactiveFeatures() {
        def features = EnumSet.allOf(FeaturePreviews.Feature)
        features.removeAll(activeFeatures())
        features
    }

        then:
        succeeds()

        where:
        feature << FeaturePreviewsActivationFixture.inactiveFeatures()
    }

    @Issue("https://github.com/gradle/gradle/issues/8840")
    def "can use exec in settings"() {
        addExecToScript(settingsFile)
        when:
        succeeds()
        then:

        }
    }

    static final class AnyActiveFeature implements TestPrecondition {
        @Override
        boolean isSatisfied() throws Exception {
            return !FeaturePreviewsActivationFixture.inactiveFeatures().isEmpty()
        }
    }

    static class CanKillProcess implements TestPrecondition {
        @Override
        boolean isSatisfied() throws Exception {