[PATCH] tests/acceptance: Add a test with the Fedora 31 kernel and initrd

[Thomas Huth <thuth@redhat.com>]

This initrd contains a virtio-net and a virtio-gpu kernel module,
so we can check that we can set a MAC address for the network device
and that we can successfully write some stuff into the emulated
framebuffer of the virtio-gpu device.

Signed-off-by: Thomas Huth <thuth@redhat.com>
---
 Based-on: 20201215183623.110128-1-thuth@redhat.com

 tests/acceptance/machine_s390_ccw_virtio.py | 78 +++++++++++++++++++++
 1 file changed, 78 insertions(+)

diff --git a/tests/acceptance/machine_s390_ccw_virtio.py b/tests/acceptance/machine_s390_ccw_virtio.py
index abe25a08f0..a5be26b38e 100644
--- a/tests/acceptance/machine_s390_ccw_virtio.py
+++ b/tests/acceptance/machine_s390_ccw_virtio.py
@@ -9,6 +9,8 @@
 # This work is licensed under the terms of the GNU GPL, version 2 or
 # later.  See the COPYING file in the top-level directory.
 
+import re
+import tempfile
 
 from avocado_qemu import Test
 from avocado_qemu import exec_command_and_wait_for_pattern
@@ -150,3 +152,79 @@ class S390CCWVirtioMachine(Test):
         self.vm.command('human-monitor-command', command_line='balloon 128')
         exec_command_and_wait_for_pattern(self, 'head -n 1 /proc/meminfo',
                                           'MemTotal:         115640 kB')
+
+
+    def test_s390x_fedora(self):
+
+        """
+        :avocado: tags=arch:s390x
+        :avocado: tags=machine:s390-ccw-virtio
+        """
+
+        kernel_url = ('https://archives.fedoraproject.org/pub/archive'
+                      '/fedora-secondary/releases/31/Server/s390x/os'
+                      '/images/kernel.img')
+        kernel_hash = 'b93d1efcafcf29c1673a4ce371a1f8b43941cfeb'
+        kernel_path = self.fetch_asset(kernel_url, asset_hash=kernel_hash)
+
+        initrd_url = ('https://archives.fedoraproject.org/pub/archive'
+                      '/fedora-secondary/releases/31/Server/s390x/os'
+                      '/images/initrd.img')
+        initrd_hash = '3de45d411df5624b8d8ef21cd0b44419ab59b12f'
+        initrd_path = self.fetch_asset(initrd_url, asset_hash=initrd_hash)
+
+        self.vm.set_console()
+        kernel_command_line = (self.KERNEL_COMMON_COMMAND_LINE +
+                              ' audit=0 rd.rescue')
+        self.vm.add_args('-nographic',
+                         '-smp', '4',
+                         '-m', '512',
+                         '-name', 'Some Guest Name',
+                         '-uuid', '30de4fd9-b4d5-409e-86a5-09b387f70bfa',
+                         '-kernel', kernel_path,
+                         '-initrd', initrd_path,
+                         '-append', kernel_command_line,
+                         '-device', 'virtio-net-pci,mac=02:ca:fe:fa:ce:12',
+                         '-device', 'virtio-rng-ccw',
+                         '-device', 'virtio-gpu-ccw')
+        self.vm.launch()
+        self.wait_for_console_pattern('Entering emergency mode')
+
+        # Some tests to see whether the CLI options have been considered:
+        exec_command_and_wait_for_pattern(self,
+                             'cat /sys/class/net/enP1p0s0/address',
+                             '02:ca:fe:fa:ce:12')
+        exec_command_and_wait_for_pattern(self, 'cat /proc/cpuinfo',
+                             'processors    : 4')
+        exec_command_and_wait_for_pattern(self, 'grep MemTotal /proc/meminfo',
+                             'MemTotal:         499848 kB')
+        exec_command_and_wait_for_pattern(self, 'grep Name /proc/sysinfo',
+                             'Extended Name:   Some Guest Name')
+        exec_command_and_wait_for_pattern(self, 'grep UUID /proc/sysinfo',
+                             '30de4fd9-b4d5-409e-86a5-09b387f70bfa')
+
+        # Disable blinking cursor, then write some stuff into the framebuffer
+        # ("32-bit encoded", the screendump PPM will then only contain 24-bit)
+        exec_command_and_wait_for_pattern(self,
+            'echo -e "\e[?25l" > /dev/tty0', ':/#')
+        exec_command_and_wait_for_pattern(self, 'for ((i=0;i<500;i++)); do '
+            'echo " The  qu ick  fo x j ump s o ver  a  laz y d og" >> fox.txt;'
+            'done',
+            ':/#')
+        exec_command_and_wait_for_pattern(self,
+            'dd if=fox.txt of=/dev/fb0 bs=1000 oflag=sync,nocache ; rm fox.txt',
+            '24+0 records out')
+        tmpfile = tempfile.NamedTemporaryFile(suffix='.ppm',
+                                              prefix='qemu-scrdump-')
+        self.vm.command('screendump', filename=tmpfile.name)
+        ppmfile = open(tmpfile.name, "r")
+        tmpfile.close
+        line = ppmfile.readline()
+        self.assertEqual(line, "P6\n")
+        line = ppmfile.readline()
+        self.assertEqual(line, "1024 768\n")
+        line = ppmfile.readline()
+        self.assertEqual(line, "255\n")
+        line = ppmfile.readline()
+        self.assertEqual(line, "The quick fox jumps over a lazy dog\n")
+        ppmfile.close
-- 
2.27.0