FunctionSpy<Object, String> spy = new FunctionSpy<>(constant("bar"));
    Future<String> input = immediateFuture("foo");
    Future<String> transformed = lazyTransform(input, spy);
    spy.verifyCallCount(0);
    assertEquals("bar", getDone(transformed));
    spy.verifyCallCount(1);
    assertEquals("bar", getDone(transformed));
    spy.verifyCallCount(2);
  }

  @J2ktIncompatible

    FunctionSpy<Object, String> spy = new FunctionSpy<>(constant("bar"));
    Future<String> input = immediateFuture("foo");
    Future<String> transformed = lazyTransform(input, spy);
    spy.verifyCallCount(0);
    assertEquals("bar", getDone(transformed));
    spy.verifyCallCount(1);
    assertEquals("bar", getDone(transformed));
    spy.verifyCallCount(2);
  }

  @J2ktIncompatible

shell.museum
sherbrooke.museum
sibenik.museum
silk.museum
ski.museum
skole.museum
society.museum
sologne.museum
soundandvision.museum
southcarolina.museum
southwest.museum
space.museum
spy.museum
square.museum
stadt.museum
stalbans.museum
starnberg.museum
state.museum
stateofdelaware.museum
station.museum
steam.museum
steiermark.museum
stjohn.museum
stockholm.museum