### Question:
PowerMockitoConfig implements MockerConfig { @Override public FieldPreparer provideFieldPreparer() { return mFieldPreparer; }  @Override MockMaker provideMockMaker(); @Override FieldPreparer provideFieldPreparer(); @Override List<Class<? extends Annotation>> provideMockAnnotations();  }### Answer:
@Test public void testFieldPreparerIsExpected() { assertThat(mMockitoConfig.provideFieldPreparer()) .isNotNull() .isInstanceOf(PowerMockitoFieldPreparer.class); }