### Question:
DirtySubsceneRemover { public boolean isPrimary() { return primary; } DirtySubsceneRemover(); DirtySubsceneRemover sensorName(); DirtySubsceneRemover primary(boolean primary); DirtySubsceneRemover subSceneWidth(int subSceneWidth); DirtySubsceneRemover subSceneHeight(int subSceneHeight); DirtySubsceneRemover dirtyPixelFraction(double dirtyPixelFraction); DirtySubsceneRemover config(Configuration config); DirtySubsceneRemover storage(Storage storage); DirtySubsceneRemover logger(Logger logger); boolean isPrimary(); void removeSamples(List<SamplingPoint> samples);  }### Answer:
@Test public void testPrimaryIsDefault() throws Exception { final DirtySubsceneRemover remover = new DirtySubsceneRemover(); assertTrue(remover.isPrimary()); }