then:
        wasNotForked()
    }

    def "forks build to run when immutable jvm args set regardless of the environment"() {
        when:
        requireJvmArg('-Xmx64m')
        runWithJvmArg('-Xmx64m')

        and:
        file('build.gradle') << """
assert java.lang.management.ManagementFactory.runtimeMXBean.inputArguments.contains('-Xmx64m')
"""

        then:
        succeeds()