Test for activating different cache path

Signed-off-by: Pawel Skwarlo <pawel.skwarlo@intel.com>
2022-07-05 13:20:15 +02:00 · 2022-07-05 13:20:15 +02:00 · 32a87f1e0e
commit 32a87f1e0e
parent 9081ce3bb6
1 changed files with 84 additions and 0 deletions
--- a/test/functional/tests/fault_injection/test_standby_activate_different_cache_path.py
+++ b/test/functional/tests/fault_injection/test_standby_activate_different_cache_path.py
@ -0,0 +1,84 @@
+#
+# Copyright(c) 2022 Intel Corporation
+# SPDX-License-Identifier: BSD-3-Clause
+#
+
+import pytest
+
+from api.cas import casadm
+from api.cas.cli import standby_activate_cmd
+from core.test_run import TestRun
+from storage_devices.disk import DiskType, DiskTypeSet, DiskTypeLowerThan
+from test_utils.filesystem.symlink import Symlink
+from test_utils.size import Size, Unit
+from api.cas.cache_config import CacheLineSize
+from api.cas.cache import CacheStatus
+from test_tools.dd import Dd
+from test_tools.fs_utils import check_if_symlink_exists
+from test_utils.os_utils import sync
+
+
+@pytest.mark.CI
+@pytest.mark.require_disk("cache", DiskTypeSet([DiskType.nand, DiskType.optane]))
+@pytest.mark.require_disk("core", DiskTypeLowerThan("cache"))
+@pytest.mark.parametrizex("cache_line_size", CacheLineSize)
+def test_standby_activate_different_cache_path(cache_line_size):
+    """
+    title: test_standby_activate_different_cache_path
+    description: |
+        Symlink-activated CAS partitions distinction test.
+    pass_criteria:
+      - Cache is successfully activated with symlink on second partition.
+      - Cache is present and running.
+    """
+    with TestRun.step("Prepare two partitions with the same size."):
+        cache_dev = TestRun.disks["cache"]
+        cache_dev.create_partitions([Size(500, Unit.MebiByte)] * 2)
+        active_cache_dev = cache_dev.partitions[0]
+        standby_cache_dev = cache_dev.partitions[1]
+        cache_id = 1
+
+    with TestRun.step("Start a regular cache instance on one of the partitions and stop it."):
+        active_cache = casadm.start_cache(
+            active_cache_dev, cache_line_size=cache_line_size, force=True
+        )
+        active_cache.stop()
+
+    with TestRun.step("Create a symbolic link to the second partition."):
+        link_path = "/dev/disk/by-id/standby_cache_dev_link"
+        symlink = Symlink.create_symlink(link_path, standby_cache_dev.path, True)
+
+        if not check_if_symlink_exists(link_path):
+            TestRun.fail("Failed to create a symlink.")
+        TestRun.LOGGER.info("Symlink was created successfully.")
+
+    with TestRun.step("Start a standby instance on the second partition using original path."):
+        standby_cache = casadm.standby_init(standby_cache_dev, cache_id, cache_line_size, True)
+
+    with TestRun.step(
+        "Populate the standby cache with valid CAS metadata from the first partition."
+    ):
+        Dd().input(active_cache_dev.path).output(f"/dev/cas-cache-{cache_id}").run()
+        sync()
+
+    with TestRun.step("Detach standby cache."):
+        standby_cache.standby_detach()
+
+    with TestRun.step("Activate cache providing symlink."):
+        output = TestRun.executor.run(
+            standby_activate_cmd(symlink.get_symlink_path(), str(cache_id), False)
+        )
+        if output.exit_code != 0:
+            TestRun.LOGGER.error("Failed to activate standby cache.")
+
+    with TestRun.step(
+        "Verify that the activation succeeded, and the regular cache instance is running."
+    ):
+        if standby_cache.get_status() != CacheStatus.running:
+            TestRun.LOGGER.error("Cache is not running.")
+
+        standby_cache.stop()
+        symlink.remove_symlink()
+
+        if check_if_symlink_exists(symlink.get_symlink_path()):
+            TestRun.LOGGER.error("Failed to remove symlink.")