Add test to verify count in GDP config

Author: Kasturi Narra

test/assets/generic-device-plugin/fuse-test-pod.yaml

@@ -0,0 +1,19 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: fuse-test-pod
+spec:
+  containers:
+  - name: fuse-app-container
+    image: registry.access.redhat.com/ubi9/ubi:9.6
+    command: ["sleep", "infinity"]
+    resources:
+      limits:
+        device.microshift.io/fuse: "4"
+    securityContext:
+      allowPrivilegeEscalation: false
+      capabilities:
+        drop: ["ALL"]
+      runAsNonRoot: true
+      seccompProfile:
+        type: "RuntimeDefault"

test/suites/optional/generic-device-plugin.robot

@@ -49,6 +49,34 @@ Verify ttyUSB glob pattern device discovery and allocation
 
     [Teardown]    TtyUSB Glob Test Teardown
 
+Verify FUSE device allocation and accessibility
+    [Documentation]    Verifies FUSE device configuration, allocation, and accessibility in pods
+    [Tags]    fuse-device
+    [Setup]    Enable And Configure GDP    ${GDP_CONFIG_FUSE_COUNT}
+    Wait Until Device Is Allocatable    10    fuse
+    # Create and deploy pod requesting 4 FUSE devices
+    VAR    ${path}=    ./assets/generic-device-plugin/fuse-test-pod.yaml
+    Oc Create    -f ${path} -n ${NAMESPACE}
+
+    # Wait for pod to be ready and verify device accessibility
+    Oc Wait    -n ${NAMESPACE} pod/fuse-test-pod    --for=condition=Ready --timeout=120s
+
+    # Verify /dev/fuse is accessible in the pod
+    ${fuse_device}=    Oc Exec    fuse-test-pod    ls -l /dev/fuse
+    Should Contain    ${fuse_device}    /dev/fuse
+
+    # Verify node allocation shows 4 FUSE devices allocated
+    ${node}=    Run With Kubeconfig    oc get node -o=name
+    ${node_name}=    Remove String    ${node}    node/
+    ${describe_output}=    Run With Kubeconfig    oc describe node ${node_name}
+    ${allocated_line}=    Get Lines Containing String    ${describe_output}    device.microshift.io/fuse
+    ${allocation_matches}=    Get Regexp Matches
+    ...    ${allocated_line}
+    ...    device\\.microshift\\.io/fuse\\s+(\\d+)\\s+(\\d+)
+    ...    1    2
+    Should Be Equal As Integers    ${allocation_matches}[0]    4
+    Should Be Equal As Integers    ${allocation_matches}[1]    4
+
 
 *** Keywords ***
 GDP Test Setup
@@ -132,20 +160,20 @@ Create Test Job With Modified Script
 
 Wait Until Device Is Allocatable
     [Documentation]    Waits until device device.microshift.io/fakeserial is allocatable
-    [Arguments]    ${expected_count}=1
+    [Arguments]    ${expected_count}=1    ${device_type}=fakeserial
     ${node}=    Run With Kubeconfig    oc get node -o=name
     ${node_name}=    Remove String    ${node}    node/
     Wait Until Keyword Succeeds    60s    5s
-    ...    Device Should Be Allocatable    ${node_name}    ${expected_count}
+    ...    Device Should Be Allocatable    ${node_name}    ${expected_count}    ${device_type}
 
 Device Should Be Allocatable
-    [Documentation]    Checks if device device.microshift.io/fakeserial is allocatable
-    [Arguments]    ${node_name}    ${expected_count}=1
+    [Documentation]    Checks if specified device is allocatable
+    [Arguments]    ${node_name}    ${expected_count}=1    ${device_type}=fakeserial
     ${device_amount}=    Oc Get JsonPath
     ...    node
     ...    ${EMPTY}
     ...    ${node_name}
-    ...    .status.allocatable.device\\.microshift\\.io/fakeserial
+    ...    .status.allocatable.device\\.microshift\\.io/${device_type}
     Should Be Equal As Integers    ${device_amount}    ${expected_count}
 
 Wait For Job Completion And Check Logs

test/suites/optional/strings.py

@@ -29,6 +29,18 @@
              - path: /dev/ttyUSB*
 '''
 
+GDP_CONFIG_FUSE_COUNT = '''
+genericDevicePlugin:
+  status: Enabled
+  devices:
+     - name: fuse
+       groups:
+         - count: 10
+           paths:
+             - path: /dev/fuse
+'''
+
+
 CONFIGMAP_PREAMBLE = '''
 apiVersion: v1
 kind: ConfigMap