assertNotSame(IndexOptions.NONE, f.fieldType().indexOptions());
f = doc.getField("a.b");
assertThat(f, notNullValue());
assertThat(f.name(), equalTo("a.b"));
assertThat(f.stringValue(), equalTo("complete me"));
assertThat(f.fieldType().stored(), equalTo(false));
assertNotSame(IndexOptions.NONE, f.fieldType().indexOptions());
assertThat(docMapper.mappers().fullName("b").mapper(), notNullValue());
assertThat(docMapper.mappers().fullName("b").mapper(), instanceOf(CompletionFieldMapper.class));