assertThat(indexMetaData.settings().getAsMap().size(), equalTo(4));
assertThat(indexMetaData.settings().get("setting1"), equalTo("value1"));
assertThat(indexMetaData.settings().get("setting2"), equalTo("value2"));
assertThat(indexMetaData.mappings().size(), equalTo(2));
assertThat(indexMetaData.mappings().get("mapping1").source().string(), equalTo(MAPPING_SOURCE1));
assertThat(indexMetaData.mappings().get("mapping2").source().string(), equalTo(MAPPING_SOURCE2));
assertThat(indexMetaData.aliases().size(), equalTo(4));
assertThat(indexMetaData.aliases().get("alias1").alias(), equalTo("alias1"));
assertThat(indexMetaData.aliases().get("alias1").filter().string(), equalTo(ALIAS_FILTER1));
assertThat(indexMetaData.aliases().get("alias2").alias(), equalTo("alias2"));
assertThat(indexMetaData.aliases().get("alias2").filter(), nullValue());