new StringValue().withValue(FIELD_1),
new StringValue().withValue(FIELD_2)
)
.withName("fields"));
scopedFilters.add(new ScopedFilter(new CustomCondition(getFilterResolver(),
DSpaceMetadataExistsFilter.class,
filterConfiguration),
Scope.Query));
DatabaseQuery result = underTest.buildQuery(scopedFilters, START, LENGTH);