### Question:
SshValueFunctions { public static Function<SshPollValue, String> stderr() { return new Stderr(); }  static Function<SshPollValue, Integer> exitStatus(); static Function<SshPollValue, String> stdout(); static Function<SshPollValue, String> stderr(); static Function<SshPollValue, Boolean> exitStatusEquals(final int expected); static Function<A,C> chain(final Function<A,? extends B> f1, final Function<B,C> f2); static Function<A,D> chain(final Function<A,? extends B> f1, final Function<B,? extends C> f2, final Function<C,D> f3);  }### Answer:
@Test public void testStderr() throws Exception { assertEquals(SshValueFunctions.stderr().apply(val), "mystderr"); }