tests the blockstoremeta #getcapacitybytes method . concode_field_sep long COMMITTED_BLOCKS_NUM concode_elem_sep long TEST_SESSION_ID concode_elem_sep BlockStoreMeta mBlockStoreMeta concode_elem_sep BlockStoreMeta mBlockStoreMetaFull concode_elem_sep long TEST_BLOCK_SIZE concode_elem_sep BlockMetadataManager mMetadataManager concode_elem_sep TemporaryFolder mTestFolder concode_field_sep void getUsedBytesOnTiers concode_elem_sep void before concode_elem_sep void getCapacityBytesOnDirs concode_elem_sep void getUsedBytes concode_elem_sep void getNumberOfBlocks concode_elem_sep void getCapacityBytesOnTiers concode_elem_sep void getUsedBytesOnDirs concode_elem_sep void getBlockList