@Test(dependsOnMethods="testDelete")
public void testDataSourceHasDataSets() {

    metadata.read(() -> {
        Optional<DataSource> dsrc = this.dataSourceProvider.find(dSrcIds.get(0));
        
        assertThat(dsrc).isNotNull().isPresent();
        
        List<? extends DataSet> dsList = dsrc.get().getDataSets();
        
        assertThat(dsList).hasSize(COUNT);
    }, MetadataAccess.SERVICE);
}