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from __future__ import division
from openshiftstoragelibs.baseclass import BaseClass
from openshiftstoragelibs.exceptions import ExecutionError
from openshiftstoragelibs import heketi_ops
class TestVolumeDeleteTestCases(BaseClass):
"""
Class for volume deletion related test cases
"""
def get_free_space_summary_devices(self):
"""
Calculates free space across all devices
"""
heketi_node_id_list = heketi_ops.heketi_node_list(
self.heketi_client_node, self.heketi_server_url)
total_free_space = 0
for node_id in heketi_node_id_list:
node_info_dict = heketi_ops.heketi_node_info(
self.heketi_client_node, self.heketi_server_url,
node_id, json=True)
for device in node_info_dict["devices"]:
total_free_space += (device["storage"]
["free"] / (1024 ** 2))
return total_free_space
def test_delete_heketi_volume(self):
"""
Method to test heketi volume deletion and whether it
frees up used space after deletion
"""
creation_output_dict = heketi_ops.heketi_volume_create(
self.heketi_client_node,
self.heketi_server_url, 10, json=True)
volume_id = creation_output_dict["name"].strip().split("_")[1]
free_space_after_creation = self.get_free_space_summary_devices()
heketi_ops.heketi_volume_delete(
self.heketi_client_node, self.heketi_server_url, volume_id)
free_space_after_deletion = self.get_free_space_summary_devices()
self.assertTrue(
free_space_after_deletion > free_space_after_creation,
"Free space is not reclaimed after deletion of %s" % volume_id)
def test_delete_heketidb_volume(self):
"""Method to test heketidb volume deletion via heketi-cli."""
for i in range(0, 2):
volume_info = heketi_ops.heketi_volume_create(
self.heketi_client_node, self.heketi_server_url,
10, json=True)
self.addCleanup(
heketi_ops.heketi_volume_delete, self.heketi_client_node,
self.heketi_server_url, volume_info["id"])
volume_list_info = heketi_ops.heketi_volume_list(
self.heketi_client_node,
self.heketi_server_url, json=True)
self.assertTrue(
volume_list_info["volumes"], "Heketi volume list empty.")
for volume_id in volume_list_info["volumes"]:
volume_info = heketi_ops.heketi_volume_info(
self.heketi_client_node, self.heketi_server_url,
volume_id, json=True)
if volume_info["name"] == "heketidbstorage":
self.assertRaises(
AssertionError,
heketi_ops.heketi_volume_delete,
self.heketi_client_node, self.heketi_server_url, volume_id)
return
raise ExecutionError(
"Warning: heketidbstorage doesn't exist in list of volumes")
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