adding new test 'test_fault_power_hit_init'

Signed-off-by: Karolina Rogowska <karolina.rogowsky@gmail.com>
Signed-off-by: Karolina Rogowska <karolina.rogowska@intel.com>

test/functional/tests/fault_injection/test_fault_power_hit_init.py

@@ -0,0 +1,51 @@
+#
+# Copyright(c) 2020 Intel Corporation
+# SPDX-License-Identifier: BSD-3-Clause-Clear
+#
+
+import pytest
+
+from api.cas import casadm, cli
+from api.cas.cache_config import CacheMode
+from core.test_run import TestRun
+from storage_devices.disk import DiskType, DiskTypeSet, DiskTypeLowerThan
+from test_utils.size import Size, Unit
+
+
+@pytest.mark.parametrizex("cache_mode", CacheMode)
+@pytest.mark.require_disk("cache", DiskTypeSet([DiskType.optane, DiskType.nand]))
+@pytest.mark.require_disk("core", DiskTypeLowerThan("cache"))
+@pytest.mark.require_plugin("power_control")
+def test_fault_power_hit_init(cache_mode):
+    """
+        title: Test with power hit and verification of metadata initialization after it.
+        description: |
+          Test if there will be metadata initialization after wake up
+          - when starting cache with initialization.
+        pass_criteria:
+          - Start cache with initialization works correctly after power hit.
+    """
+    with TestRun.step("Prepare CAS device."):
+        cache_disk = TestRun.disks['cache']
+        core_disk = TestRun.disks['core']
+        cache_disk.create_partitions([Size(2, Unit.GibiByte)])
+        core_disk.create_partitions([Size(2, Unit.GibiByte)])
+        cache_dev = cache_disk.partitions[0]
+        core_dev = core_disk.partitions[0]
+
+        cache = casadm.start_cache(cache_dev, cache_mode, force=True)
+        core = cache.add_core(core_dev)
+        cache_device_link = cache_dev.get_device_link("/dev/disk/by-id")
+
+    with TestRun.step("Hard reset."):
+        power_control = TestRun.plugin_manager.get_plugin('power_control')
+        power_control.power_cycle()
+
+    with TestRun.step("Start cache with re-initialization."):
+        cache_dev.system_path = cache_device_link.get_target()
+        TestRun.executor.run_expect_success(cli.start_cmd(
+            cache_dev=str(cache_dev.system_path),
+            cache_mode=str(cache_mode.name.lower()),
+            force=True,
+            load=False))
+        TestRun.LOGGER.info(f"Successful assembly cache device with initialization")