test(negative): stress volume node memory when volume is offline expa…

…nding

ref: 6982

Signed-off-by: Chin-Ya Huang <chin-ya.huang@suse.com>

e2e/keywords/node.resource

@@ -73,5 +73,8 @@ Stress the CPU of all ${role} nodes
 Stress the CPU of all volume nodes
     stress_node_cpu_by_volumes    ${volume_list}
 
+Stress the memory of all ${role} nodes
+    stress_node_memory_by_role    ${role}
+
 Stress the memory of all volume nodes
     stress_node_memory_by_volumes    ${volume_list}

e2e/libs/keywords/node_keywords.py

@@ -50,5 +50,8 @@ def stress_node_cpu_by_role(self, role):
     def stress_node_cpu_by_volumes(self, volume_names):
         self.stress.cpu(list_node_names_by_volumes(volume_names))
 
+    def stress_node_memory_by_role(self, role):
+        self.stress.memory(list_node_names_by_role(role))
+
     def stress_node_memory_by_volumes(self, volume_names):
         self.stress.memory(list_node_names_by_volumes(volume_names))

e2e/tests/stress_memory.robot

@@ -54,3 +54,21 @@ Stress Volume Node Memory When Volume Is Online Expanding
         Then Wait for statefulset 0 volume size expanded
         And Check statefulset 0 data is intact
     END
+
+Stress Volume Node Memory When Volume Is Offline Expanding
+    @{data_checksum_list} =    Create List
+    Set Test Variable    ${data_checksum_list}
+
+    Given Create statefulset 0 with rwo volume
+    And Write 1024 MB data to statefulset 0
+
+    FOR    ${i}    IN RANGE    ${LOOP_COUNT}
+        And Scale down statefulset 0 to detach volume
+        And Stress the memory of all worker nodes
+
+        When Expand statefulset 0 volume by 100 MiB
+
+        Then Wait for statefulset 0 volume size expanded
+        And Scale up statefulset 0 to attach volume
+        And Check statefulset 0 data is intact
+    END