fix(test): fix suspend, SDN, container, and OVA integration test failures

- Suspend/Resume: move to Linux VM lifecycle context (empty VMs may
  not reliably transition to paused state)
- SDN subnet model: dhcp-range is an array, not string
- SDN subnet delete: use PVE-format ID (vnet-ip-prefix) not CIDR
- Container config: trim trailing newline from PVE description
- OVA: use qemu-img to create valid sparse VMDK (add qemu-utils to
  test container Dockerfile)
- Enable 'images' content type on local storage for OVA import

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/PSProxmoxVE.Core/Models/Network/PveSdnSubnet.cs

@@ -46,11 +46,11 @@ public class PveSdnSubnet
     public string? DnsZonePrefix { get; set; }
 
     /// <summary>
-    /// The DHCP range configuration for automatic IP assignment.
+    /// The DHCP range configurations for automatic IP assignment.
     /// </summary>
     [JsonPropertyName("dhcp-range")]
     [JsonProperty("dhcp-range")]
-    public string? DhcpRange { get; set; }
+    public string[]? DhcpRanges { get; set; }
 
     /// <summary>
     /// The subnet type identifier used internally by PVE.

tests/PSProxmoxVE.Tests/Integration/Integration.Tests.ps1

@@ -458,31 +458,8 @@ Describe 'Integration Tests' -Tag 'Integration' {
 
     # -----------------------------------------------------------------------
     Context 'VM — Suspend / Resume / Resize' {
-        It 'Should suspend and resume a VM' {
-            if (Skip-IfNoTestVm) { return }
-
-            # Start the VM
-            Start-PveVm -Node $script:Node -VmId $script:TestVmId -Wait | Out-Null
-
-            # Suspend — sends QMP stop to QEMU
-            { Suspend-PveVm -Node $script:Node -VmId $script:TestVmId -Wait -ErrorAction Stop } |
-                Should -Not -Throw
-
-            Start-Sleep -Seconds 3
-            $vm = Get-PveVm -Node $script:Node | Where-Object { $_.VmId -eq $script:TestVmId }
-            $vm.Status | Should -Be 'paused'
-
-            # Resume — sends QMP cont to QEMU
-            { Resume-PveVm -Node $script:Node -VmId $script:TestVmId -Wait -ErrorAction Stop } |
-                Should -Not -Throw
-
-            Start-Sleep -Seconds 2
-            $vm = Get-PveVm -Node $script:Node | Where-Object { $_.VmId -eq $script:TestVmId }
-            $vm.Status | Should -Be 'running'
-
-            # Clean up — stop
-            Stop-PveVm -Node $script:Node -VmId $script:TestVmId -Wait -Confirm:$false | Out-Null
-        }
+        # Suspend/Resume is tested on the Linux VM (Guest Agent VM — Lifecycle)
+        # because an empty VM with no OS may not reliably transition to 'paused'.
 
         It 'Should resize a VM disk (Resize-PveVmDisk)' {
             if (Skip-IfNoTestVm) { return }
@@ -796,7 +773,8 @@ Describe 'Integration Tests' -Tag 'Integration' {
             if (Skip-IfNoTarget) { return }
             if ($script:SkipSdn) { Set-ItResult -Skipped -Because $script:SkipSdn; return }
 
-            { Remove-PveSdnSubnet -Vnet 'pestervn' -Subnet '10.99.0.0/24' `
+            # PVE stores subnet IDs in the format: {vnet}-{ip}-{prefix}
+            { Remove-PveSdnSubnet -Vnet 'pestervn' -Subnet 'pestervn-10.99.0.0-24' `
                 -Confirm:$false -ErrorAction Stop } | Should -Not -Throw
         }
 
@@ -913,7 +891,7 @@ Describe 'Integration Tests' -Tag 'Integration' {
                 -ErrorAction Stop } | Should -Not -Throw
 
             $config = Get-PveContainerConfig -Node $script:Node -VmId $script:TestContainerId
-            $config.Description | Should -Be 'Updated by Pester integration test'
+            $config.Description.Trim() | Should -Be 'Updated by Pester integration test'
         }
 
         It 'Should start a container (Start-PveContainer)' {
@@ -1168,6 +1146,28 @@ Describe 'Integration Tests' -Tag 'Integration' {
             $vm.Status | Should -Be 'running'
         }
 
+        It 'Should suspend and resume a running VM (Suspend-PveVm / Resume-PveVm)' {
+            if (Skip-IfNoLinuxVm) { return }
+
+            # Suspend — sends QMP stop
+            { Suspend-PveVm -Node $script:Node -VmId $script:LinuxVmId -Wait -ErrorAction Stop } |
+                Should -Not -Throw
+
+            Start-Sleep -Seconds 3
+            $vm = Get-PveVm -Node $script:Node |
+                Where-Object { $_.VmId -eq $script:LinuxVmId }
+            $vm.Status | Should -Be 'paused'
+
+            # Resume — sends QMP cont
+            { Resume-PveVm -Node $script:Node -VmId $script:LinuxVmId -Wait -ErrorAction Stop } |
+                Should -Not -Throw
+
+            Start-Sleep -Seconds 5
+            $vm = Get-PveVm -Node $script:Node |
+                Where-Object { $_.VmId -eq $script:LinuxVmId }
+            $vm.Status | Should -Be 'running'
+        }
+
         It 'Should gracefully restart a VM via ACPI (Restart-PveVm)' {
             if (Skip-IfNoLinuxVm) { return }
 

tests/infrastructure/Dockerfile

@@ -44,6 +44,7 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
     powershell \
     terraform \
     proxmox-auto-install-assistant \
+    qemu-utils \
     && rm -rf /var/lib/apt/lists/*
 
 # ── Install Pester ────────────────────────────────────────────────────
@@ -58,6 +59,7 @@ RUN echo "=== Tool verification ===" && \
     proxmox-auto-install-assistant --version && \
     sshpass -V | head -1 && \
     xorriso --version 2>&1 | head -1 && \
+    qemu-img --version | head -1 && \
     curl --version | head -1 && \
     jq --version && \
     python3 --version && \

tests/infrastructure/scripts/prepare-test-environment.sh

@@ -63,8 +63,8 @@ if [ ! -f "${OVA_PATH}" ]; then
     echo "Creating minimal test OVA..."
     OVA_TMPDIR=$(mktemp -d)
 
-    # Create a 1MB raw disk image and convert to vmdk-stream (flat)
-    dd if=/dev/zero of="${OVA_TMPDIR}/test-disk.vmdk" bs=1M count=1 2>/dev/null
+    # Create a minimal valid sparse VMDK using qemu-img
+    qemu-img create -f vmdk -o subformat=streamOptimized "${OVA_TMPDIR}/test-disk.vmdk" 64M 2>/dev/null
 
     # Create OVF descriptor
     cat > "${OVA_TMPDIR}/test-appliance.ovf" <<'OVF'