test/lvol: Test plan for provisioning

"get_*" RPC calls, which provide additional information for verifying

results.

Tests with thin provisioned lvol bdev are using nbd devices.

Before writing/reading to lvol bdev, bdev is installed with rpc start_nbd_disk.

After finishing writing/reading, rpc stop_nbd_disk is used.

## Tests

### construct_lvol_store  - positive tests

- return code != 0

- Error code response printed to stdout

### Provisioning

#### TEST CASE 650 - Name: thin_provisioning_check_space

- create malloc bdev

- construct lvol store on malloc bdev

- create thin provisioned lvol bdev with size equals to lvol store free space

- check and save number of free clusters for lvol store

- write data (less than lvs cluster size) to created lvol bdev starting from offset 0.

- check that free clusters on lvol store was decremented by 1

- write data (lvs cluster size) to lvol bdev with offset set to one and half of cluster size

- check that free clusters on lvol store was decremented by 2

- write data to lvol bdev to the end of its size

- check that lvol store free clusters number equals to 0

- destroy thin provisioned lvol bdev

- check that saved number of free clusters equals to current free clusters

- destroy lvol store

- destroy malloc bdev

Expected result:

- calls successful, return code = 0

- no other operation fails

#### TEST CASE 651 - Name: thin_provisioning_read_empty_bdev

- create malloc bdev

- construct lvol store on malloc bdev

- create thick provisioned lvol bvdev with size equal to lvol store

- create thin provisioned lvol bdev with the same size

- fill the whole thick provisioned lvol bdev

- perform read operations on thin provisioned lvol bdev

  and check if they return zeroes

- destroy thin provisioned lvol bdev

- destroy lvol store

- destroy malloc bdev

Expected result:

- calls successful, return code = 0

- no other operation fails

#### TEST CASE 652 - Name: thin_provisioning_data_integrity_test

- create malloc bdev

- construct lvol store on malloc bdev

- construct thin provisioned lvol bdev with size equal to lvol store

- on the whole lvol bdev perform write operation with verification

- destroy thin provisioned lvol bdev

- destroy lvol store

- destroy malloc bdev

Expected result:

- calls successful, return code = 0

- verification ends with success

- no other operation fails

#### TEST CASE 653 - Name: thin_provisioning_resize

- create malloc bdev

- construct lvol store on malloc bdev

- construct thin provisioned lvol bdevs on created lvol store

  with size equal to 50% of lvol store

- fill all free space of lvol bdev with data

- save number of free clusters for lvs

- resize bdev to full size of lvs

- check if bdev size changed (total_data_clusters*cluster_size

  equal to num_blocks*block_size)

- check if free_clusters on lvs remain unaffected

- perform write operation with verification

  to newly created free space of lvol bdev

- resize bdev to 30M and check if it ended with success

- check if free clusters on lvs equals to saved counter

- destroy thin provisioned lvol bdev

- destroy lvol store

- destroy malloc bdev

Expected result:

- calls successful, return code = 0

- no other operation fails

#### TEST CASE 654 - Name: thin_overprovisioning

- create malloc bdev

- construct lvol store on malloc bdev

- construct two thin provisioned lvol bdevs on created lvol store

  with size equals to free lvs size

- fill first bdev to 75% of its space with specific pattern

- fill second bdev up to 75% of its space

- check that error message occured while filling second bdev with data

- check if data on first disk stayed unchanged

- destroy thin provisioned lvol bdev

- destroy lvol store

- destroy malloc bdev

Expected result:

- calls successful, return code = 0

- no other operation fails

#### TEST CASE 655 - Name: thin_provisioning_filling_disks_less_than_lvs_size

- create malloc bdev

- construct lvol store on malloc bdev

- construct two thin provisioned lvol bdevs on created lvol store

  with size equal to 70% of lvs size

- check if bdevs are available and size of every disk is equal to 70% of lvs size

- fill first disk with 70% of its size and second one also with 70% of its size

- check if operation didn't fail

- destroy thin provisioned lvol bdevs

- destroy lvol store

- destroy malloc bdev

Expected result:

- calls successful, return code = 0

- no other operation fails

### logical volume tasting tests

#### TEST CASE 650 - Name: tasting_positive

#### TEST CASE 700 - Name: tasting_positive

Positive test for tasting a multi lvol bdev configuration.

Create a lvol store with some lvol bdevs on NVMe drive and restart vhost app.

After restarting configuration should be automatically loaded and should be exactly

- all RPC configuration calls successful, return code = 0

- no other operation fails

#### TEST CASE 651 - Name: tasting_lvol_store_positive

#### TEST CASE 701 - Name: tasting_lvol_store_positive

Positive test for tasting lvol store.

Steps:

- run vhost app with NVMe bdev

### SIGTERM

#### TEST CASE 700 - Name: SIGTERM

#### TEST CASE 750 - Name: SIGTERM

Call CTRL+C (SIGTERM) occurs after creating lvol store

Steps:

- create a malloc bdev