### Question:
DescribeFeatureType extends AbstractGeoGigOp<ImmutableSet<PropertyDescriptor>> { public DescribeFeatureType setFeatureType(RevFeatureType featureType) { this.featureType = featureType; return this; }  DescribeFeatureType setFeatureType(RevFeatureType featureType);  }### Answer:
@Test public void testDescribeFeatureType() throws Exception { DescribeFeatureType describe = new DescribeFeatureType(); ImmutableSet<PropertyDescriptor> properties = describe.setFeatureType(featureType).call(); for (PropertyDescriptor prop : properties) { assertTrue(pointsType.getDescriptors().contains(prop)); } }