tests/functional: Convert the emcraft_sf2 avocado test

A pretty straight-forward conversion of the emcraft_sf2 boot
test to the functional framework.

This was the last test that used file_truncate() in
boot_linux_console.py, so we can remove that function from that
file now, too.

Message-ID: <20241206102358.1186644-3-thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>

MAINTAINERS

@@ -1116,6 +1116,7 @@ L: qemu-arm@nongnu.org
 S: Maintained
 F: hw/arm/msf2-som.c
 F: docs/system/arm/emcraft-sf2.rst
+F: tests/functional/test_arm_emcraft_sf2.py
 
 ASPEED BMCs
 M: Cédric Le Goater <clg@kaod.org>

tests/avocado/boot_linux_console.py

@@ -30,11 +30,6 @@ Round up to next power of 2
 def pow2ceil(x):
     return 1 if x == 0 else 2**(x - 1).bit_length()
 
-def file_truncate(path, size):
-    if size != os.path.getsize(path):
-        with open(path, 'ab+') as fd:
-            fd.truncate(size)
-
 """
 Expand file size to next power of 2
 """
@@ -137,45 +132,6 @@ class BootLinuxConsole(LinuxKernelTest):
         console_pattern = 'Kernel command line: %s' % kernel_command_line
         self.wait_for_console_pattern(console_pattern)
 
-    def test_arm_emcraft_sf2(self):
-        """
-        :avocado: tags=arch:arm
-        :avocado: tags=machine:emcraft-sf2
-        :avocado: tags=endian:little
-        :avocado: tags=u-boot
-        :avocado: tags=accel:tcg
-        """
-        self.require_netdev('user')
-
-        uboot_url = ('https://raw.githubusercontent.com/'
-                     'Subbaraya-Sundeep/qemu-test-binaries/'
-                     'fe371d32e50ca682391e1e70ab98c2942aeffb01/u-boot')
-        uboot_hash = 'cbb8cbab970f594bf6523b9855be209c08374ae2'
-        uboot_path = self.fetch_asset(uboot_url, asset_hash=uboot_hash)
-        spi_url = ('https://raw.githubusercontent.com/'
-                   'Subbaraya-Sundeep/qemu-test-binaries/'
-                   'fe371d32e50ca682391e1e70ab98c2942aeffb01/spi.bin')
-        spi_hash = '65523a1835949b6f4553be96dec1b6a38fb05501'
-        spi_path = self.fetch_asset(spi_url, asset_hash=spi_hash)
-        spi_path_rw = os.path.join(self.workdir, os.path.basename(spi_path))
-        shutil.copy(spi_path, spi_path_rw)
-
-        file_truncate(spi_path_rw, 16 << 20) # Spansion S25FL128SDPBHICO is 16 MiB
-
-        self.vm.set_console()
-        kernel_command_line = self.KERNEL_COMMON_COMMAND_LINE
-        self.vm.add_args('-kernel', uboot_path,
-                         '-append', kernel_command_line,
-                         '-drive', 'file=' + spi_path_rw + ',if=mtd,format=raw',
-                         '-no-reboot')
-        self.vm.launch()
-        self.wait_for_console_pattern('Enter \'help\' for a list')
-
-        exec_command_and_wait_for_pattern(self, 'ifconfig eth0 10.0.2.15',
-                                                 'eth0: link becomes ready')
-        exec_command_and_wait_for_pattern(self, 'ping -c 3 10.0.2.2',
-            '3 packets transmitted, 3 packets received, 0% packet loss')
-
     def test_arm_exynos4210_initrd(self):
         """
         :avocado: tags=arch:arm

tests/functional/meson.build

@@ -71,6 +71,7 @@ tests_arm_system_thorough = [
   'arm_bpim2u',
   'arm_canona1100',
   'arm_collie',
+  'arm_emcraft_sf2',
   'arm_integratorcp',
   'arm_orangepi',
   'arm_raspi2',

tests/functional/test_arm_emcraft_sf2.py

@@ -0,0 +1,52 @@
+#!/usr/bin/env python3
+#
+# Functional test that boots a Linux kernel and checks the console
+#
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+import os
+import shutil
+
+from qemu_test import LinuxKernelTest, Asset, exec_command_and_wait_for_pattern
+from qemu_test.utils import file_truncate
+
+class EmcraftSf2Machine(LinuxKernelTest):
+
+    ASSET_UBOOT = Asset(
+        ('https://raw.githubusercontent.com/Subbaraya-Sundeep/qemu-test-binaries/'
+         'fe371d32e50ca682391e1e70ab98c2942aeffb01/u-boot'),
+        '5c6a15103375db11b21f2236473679a9dbbed6d89652bfcdd501c263d68ab725')
+
+    ASSET_SPI = Asset(
+        ('https://raw.githubusercontent.com/Subbaraya-Sundeep/qemu-test-binaries/'
+         'fe371d32e50ca682391e1e70ab98c2942aeffb01/spi.bin'),
+        'cd9bdd2c4cb55a59c3adb6bcf74881667c4500dde0570a43aa3be2b17eecfdb6')
+
+    def test_arm_emcraft_sf2(self):
+        self.set_machine('emcraft-sf2')
+        self.require_netdev('user')
+
+        uboot_path = self.ASSET_UBOOT.fetch()
+        spi_path = self.ASSET_SPI.fetch()
+        spi_path_rw = os.path.join(self.workdir, 'spi.bin')
+        shutil.copy(spi_path, spi_path_rw)
+        os.chmod(spi_path_rw, 0o600)
+
+        file_truncate(spi_path_rw, 16 << 20) # Spansion S25FL128SDPBHICO is 16 MiB
+
+        self.vm.set_console()
+        kernel_command_line = self.KERNEL_COMMON_COMMAND_LINE
+        self.vm.add_args('-kernel', uboot_path,
+                         '-append', kernel_command_line,
+                         '-drive', 'file=' + spi_path_rw + ',if=mtd,format=raw',
+                         '-no-reboot')
+        self.vm.launch()
+        self.wait_for_console_pattern('Enter \'help\' for a list')
+
+        exec_command_and_wait_for_pattern(self, 'ifconfig eth0 10.0.2.15',
+                                                 'eth0: link becomes ready')
+        exec_command_and_wait_for_pattern(self, 'ping -c 3 10.0.2.2',
+            '3 packets transmitted, 3 packets received, 0% packet loss')
+
+if __name__ == '__main__':
+    LinuxKernelTest.main()