Cephfilesystem creation test based on bug

ocs_ci/helpers/helpers.py

@@ -605,30 +605,39 @@ def create_ceph_block_pool(
     return cbp_obj
 
 
-def create_ceph_file_system(pool_name=None):
+def create_ceph_file_system(
+    cephfs_name=None, label=None, namespace=constants.OPENSHIFT_STORAGE_NAMESPACE
+):
     """
     Create a Ceph file system
-    ** This method should not be used anymore **
-    ** This method is for internal testing only **
 
     Args:
-        pool_name (str): The pool name to create
+        cephfs_name (str): The ceph FS name to create
+        label (dict): The label to give to pool
+        namespace (str): The name space in which the ceph FS has to be created
 
     Returns:
         OCS: An OCS instance for the Ceph file system
     """
-    cfs_data = templating.load_yaml(constants.CEPHFILESYSTEM_YAML)
-    cfs_data["metadata"]["name"] = (
-        pool_name if pool_name else create_unique_resource_name("test", "cfs")
+    cephfs_data = templating.load_yaml(constants.CEPHFILESYSTEM_YAML)
+    cephfs_data["metadata"]["name"] = (
+        cephfs_name if cephfs_name else create_unique_resource_name("test", "cfs")
     )
-    cfs_data["metadata"]["namespace"] = config.ENV_DATA["cluster_namespace"]
-    cfs_data = create_resource(**cfs_data)
-    cfs_data.reload()
+    cephfs_data["metadata"]["namespace"] = namespace
+    if label:
+        cephfs_data["metadata"]["labels"] = label
+
+    try:
+        cephfs_data = create_resource(**cephfs_data)
+        cephfs_data.reload()
+    except Exception as e:
+        logger.error(e)
+        raise e
 
     assert validate_cephfilesystem(
-        cfs_data.name
-    ), f"File system {cfs_data.name} does not exist"
-    return cfs_data
+        cephfs_data.name, namespace
+    ), f"File system {cephfs_data.name} does not exist"
+    return cephfs_data
 
 
 def default_storage_class(
@@ -1041,7 +1050,7 @@ def get_cephfs_data_pool_name():
     return out[0]["data_pools"][0]
 
 
-def validate_cephfilesystem(fs_name):
+def validate_cephfilesystem(fs_name, namespace=config.ENV_DATA["cluster_namespace"]):
     """
     Verify CephFileSystem exists at Ceph and OCP
 
@@ -1052,9 +1061,7 @@ def validate_cephfilesystem(fs_name):
         bool: True if CephFileSystem is created at Ceph and OCP side else
            will return False with valid msg i.e Failure cause
     """
-    cfs = ocp.OCP(
-        kind=constants.CEPHFILESYSTEM, namespace=config.ENV_DATA["cluster_namespace"]
-    )
+    cfs = ocp.OCP(kind=constants.CEPHFILESYSTEM, namespace=namespace)
     ct_pod = pod.get_ceph_tools_pod()
     ceph_validate = False
     ocp_validate = False

tests/internal/test_cephfilesystem_creation.py

@@ -0,0 +1,63 @@
+import logging
+import pytest
+
+from ocs_ci.helpers.helpers import (
+    create_ceph_file_system,
+)
+from ocs_ci.ocs.exceptions import CommandFailed
+import ocs_ci.ocs.resources.pod as pod
+from ocs_ci.framework.testlib import ManageTest
+from ocs_ci.framework.pytest_customization.marks import (
+    tier2,
+    green_squad,
+)
+
+logger = logging.getLogger(__name__)
+
+
+class TestCephFileSystemCreation(ManageTest):
+    """
+    Testing Creation of a filesystem and checking its existence.
+    Also checking if the same filesystem can't be created twice.
+    """
+
+    @tier2
+    @green_squad
+    @pytest.mark.polarion_id("OCS-5793")
+    def test_Cephfilesystem_creation(self):
+        """
+        Trying to create more cephfilesystem using the same name.
+        Expected Result: It should not create the filesystem and throw error.
+        """
+        logger.info("Starting test of Ceph Filesystem Creation")
+        try:
+            cephFS_obj = create_ceph_file_system(
+                cephfs_name="test-ceph-fs", label={"use": "test"}
+            )
+
+            if cephFS_obj:
+                logger.info("CephFile System Created. : test-ceph-fs")
+            else:
+                logger.error("Unable to create the Ceph File System")
+            ct_pod = pod.get_ceph_tools_pod()
+            cmd1 = "ceph fs fail test-ceph-fs"
+            ct_pod.exec_cmd_on_pod(cmd1)
+            cmd2 = "ceph fs rm test-ceph-fs --yes-i-really-mean-it"
+            ct_pod.exec_cmd_on_pod(cmd2)
+            logger.info("Creating CephFileSystem in the namespace")
+            new_cephFS_obj = create_ceph_file_system(
+                cephfs_name="test-ceph-fs", label={"use": "test"}
+            )
+            logger.info(
+                f"Not able to create a new ceph fs using same name {new_cephFS_obj}"
+            )
+
+        except CommandFailed as e:
+            if "Error from server (AlreadyExists)" in str(e):
+                logger.info("Test success!")
+                assert "Error from server (AlreadyExists)" in str(e)
+            else:
+                logger.error(
+                    f"Command Failed, while creating the ceph file system.\n{str(e)}"
+                )
+                raise CommandFailed