[ENSCORESW-1199]. Tests for slice on component 'D'.
[ENSCORESW-1199]. Tests for slice on component 'D'.

muffato/ensembl,Ensembl/ensembl,danstaines/ensembl,mjg17/ensembl,mjg17/ensembl,muffato/ensembl,james-monkeyshines/ensembl,at7/ensembl,Ensembl/ensembl,muffato/ensembl,james-monkeyshines/ensembl,mjg17/ensembl,Ensembl/ensembl,danstaines/ensembl,muffato/ensembl,danstaines/ensembl,at7/ensembl,at7/ensembl,james-monkeyshines/ensembl,james-monkeyshines/ensembl,mjg17/ensembl,Ensembl/ensembl,at7/ensembl