[PATCH 16/16] tests/acceptance: Test the MIPSsim machine

["Philippe Mathieu-Daudé" <f4bug@amsat.org>]

Add a test for the mipssim machine, based on the recommended
test setup from Thomas Huth:
https://www.mail-archive.com/qemu-devel@nongnu.org/msg606846.html

The test is quick and can be run as:

  $ avocado --show=console run -t machine:mipssim tests/acceptance/
   (1/1) tests/acceptance/machine_mips_mipssim.py:MipsSimMachine.test_mipssim_linux_console:
  console: Linux version 3.6.11 (root@711bb8ba16a7) (gcc version 4.8.3 (Buildroot 2014.11) ) #2 Sun Sep 27 13:39:35 UTC 2020
  console: Setting default memory size 0x02000000
  console: bootconsole [early0] enabled
  console: CPU revision is: 00019300 (MIPS 24Kc)
  console: FPU revision is: 00739300
  ...
  console: CPU frequency 12.00 MHz
  console: Calibrating delay loop... 950.27 BogoMIPS (lpj=4751360)
  ...
  console: MIPSNet Ethernet driver. Version: 2007-11-17. (c)2005 MIPS Technologies, Inc.
  ...
  console: Welcome to Buildroot
  console: buildroot login: root
  console: # root
  console: -sh: root: not found
  console: # ping -c 3 10.0.2.2
  console: PING 10.0.2.2 (10.0.2.2): 56 data bytes
  console: 64 bytes from 10.0.2.2: seq=0 ttl=255 time=48.231 ms
  console: 64 bytes from 10.0.2.2: seq=1 ttl=255 time=9.407 ms
  console: 64 bytes from 10.0.2.2: seq=2 ttl=255 time=2.298 ms
  console: --- 10.0.2.2 ping statistics ---
  console: 3 packets transmitted, 3 packets received, 0% packet loss
  PASS (7.99 s)

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
Cc: Thomas Huth <huth@tuxfamily.org>
---
 MAINTAINERS                              |  1 +
 tests/acceptance/machine_mips_mipssim.py | 56 ++++++++++++++++++++++++
 2 files changed, 57 insertions(+)
 create mode 100644 tests/acceptance/machine_mips_mipssim.py

diff --git a/MAINTAINERS b/MAINTAINERS
index 5eed1e692b4..17d8a012b0e 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -240,6 +240,7 @@ F: include/hw/misc/mips_*
 F: include/hw/timer/mips_gictimer.h
 F: tests/acceptance/linux_ssh_mips_malta.py
 F: tests/acceptance/machine_mips_malta.py
+F: tests/acceptance/machine_mips_mipssim.py
 F: tests/tcg/mips/
 K: ^Subject:.*(?i)mips
 
diff --git a/tests/acceptance/machine_mips_mipssim.py b/tests/acceptance/machine_mips_mipssim.py
new file mode 100644
index 00000000000..b2749917b08
--- /dev/null
+++ b/tests/acceptance/machine_mips_mipssim.py
@@ -0,0 +1,56 @@
+# Functional tests for the MIPS simulator (MIPSsim machine)
+#
+# Copyright (c) 2020 Philippe Mathieu-Daudé <f4bug@amsat.org>
+#
+# This work is licensed under the terms of the GNU GPL, version 2 or later.
+# See the COPYING file in the top-level directory.
+#
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+import os
+import logging
+import time
+
+from avocado import skipUnless
+from avocado_qemu import Test
+from avocado_qemu import exec_command_and_wait_for_pattern
+from avocado_qemu import interrupt_interactive_console_until_pattern
+from avocado_qemu import wait_for_console_pattern
+
+class MipsSimMachine(Test):
+
+    timeout = 30
+    KERNEL_COMMON_COMMAND_LINE = 'printk.time=0 '
+
+    @skipUnless(os.getenv('AVOCADO_ALLOW_UNTRUSTED_CODE'), 'untrusted code')
+    def test_mipssim_linux_console(self):
+        """
+        Boots the Linux kernel and checks that the console is operational
+        :avocado: tags=arch:mipsel
+        :avocado: tags=machine:mipssim
+        :avocado: tags=device:mipsnet
+        """
+        kernel_url = ('https://github.com/philmd/qemu-testing-blob/raw/'
+                      '32ea5764e1de8fffa0d59366c44822cd06d7c8e0/'
+                      'mips/mipssim/mipsel/vmlinux')
+        kernel_hash = '0f9aeca3a2e25b5b0cc4999571f39a7ad58cdc43'
+        kernel_path = self.fetch_asset(kernel_url, asset_hash=kernel_hash)
+
+        initrd_url = ('https://github.com/philmd/qemu-testing-blob/raw/'
+                      '32ea5764e1de8fffa0d59366c44822cd06d7c8e0/'
+                      'mips/mipssim/mipsel/rootfs.cpio')
+        initrd_hash = 'b20359bdfae66387e5a17d6692686d59c189417b'
+        initrd_path = self.fetch_asset(initrd_url, asset_hash=initrd_hash)
+
+        self.vm.set_console()
+        self.vm.add_args('-kernel', kernel_path,
+                         '-initrd', initrd_path,
+                         '-append', self.KERNEL_COMMON_COMMAND_LINE)
+        self.vm.launch()
+
+        wait_for_console_pattern(self, 'Welcome to Buildroot')
+        interrupt_interactive_console_until_pattern(self,
+                                                    interrupt_string='root\r',
+                                                    success_message='#')
+        pattern = '3 packets transmitted, 3 packets received, 0% packet loss'
+        exec_command_and_wait_for_pattern(self, 'ping -c 3 10.0.2.2', pattern)
-- 
2.26.2