### Question:
EffectPropertiesValues { public boolean containsTimeValues() { if (values.isEmpty()) { return false; } for (Attributes p : values) { if (p.isSet("time")) { return true; } } return false; }  void add(final Attributes p); @Nonnull List<Attributes> getValues(); @Nullable LinearInterpolator toLinearInterpolator(); boolean containsTimeValues();  }### Answer:
@Test public void testContainsTimeValues() { Attributes p = new Attributes(); p.set("time", "2"); p.set("value", "4"); effectValues.add(p); assertTrue(effectValues.containsTimeValues()); }