1 # SPDX-License-Identifier: GPL-2.0
2 # (C) Copyright 2018 Texas Instruments, <www.ti.com>
4 # Test A/B update commands.
10 class ABTestDiskImage(object):
11 """Disk Image used by the A/B tests."""
13 def __init__(self, u_boot_console):
14 """Initialize a new ABTestDiskImage object.
17 u_boot_console: A U-Boot console.
23 filename = 'test_ab_disk_image.bin'
25 persistent = u_boot_console.config.persistent_data_dir + '/' + filename
26 self.path = u_boot_console.config.result_dir + '/' + filename
28 with u_boot_utils.persistent_file_helper(u_boot_console.log, persistent):
29 if os.path.exists(persistent):
30 u_boot_console.log.action('Disk image file ' + persistent +
33 u_boot_console.log.action('Generating ' + persistent)
34 fd = os.open(persistent, os.O_RDWR | os.O_CREAT)
35 os.ftruncate(fd, 524288)
37 cmd = ('sgdisk', persistent)
38 u_boot_utils.run_and_log(u_boot_console, cmd)
40 cmd = ('sgdisk', '--new=1:64:512', '--change-name=1:misc',
42 u_boot_utils.run_and_log(u_boot_console, cmd)
43 cmd = ('sgdisk', '--load-backup=' + persistent)
44 u_boot_utils.run_and_log(u_boot_console, cmd)
46 cmd = ('cp', persistent, self.path)
47 u_boot_utils.run_and_log(u_boot_console, cmd)
50 @pytest.fixture(scope='function')
51 def ab_disk_image(u_boot_console):
54 di = ABTestDiskImage(u_boot_console)
57 def ab_dump(u_boot_console, slot_num, crc):
58 output = u_boot_console.run_command('bcb ab_dump host 0#misc')
59 header, slot0, slot1 = output.split('\r\r\n\r\r\n')
60 slots = [slot0, slot1]
61 slot_suffixes = ['_a', '_b']
63 header = dict(map(lambda x: map(str.strip, x.split(':')), header.split('\r\r\n')))
64 assert header['Bootloader Control'] == '[misc]'
65 assert header['Active Slot'] == slot_suffixes[slot_num]
66 assert header['Magic Number'] == '0x42414342'
67 assert header['Version'] == '1'
68 assert header['Number of Slots'] == '2'
69 assert header['Recovery Tries Remaining'] == '0'
70 assert header['CRC'] == '{} (Valid)'.format(crc)
72 slot = dict(map(lambda x: map(str.strip, x.split(':')), slots[slot_num].split('\r\r\n\t- ')[1:]))
73 assert slot['Priority'] == '15'
74 assert slot['Tries Remaining'] == '6'
75 assert slot['Successful Boot'] == '0'
76 assert slot['Verity Corrupted'] == '0'
78 @pytest.mark.boardspec('sandbox')
79 @pytest.mark.buildconfigspec('android_ab')
80 @pytest.mark.buildconfigspec('cmd_bcb')
81 @pytest.mark.requiredtool('sgdisk')
82 def test_ab(ab_disk_image, u_boot_console):
83 """Test the 'bcb ab_select' command."""
85 u_boot_console.run_command('host bind 0 ' + ab_disk_image.path)
87 output = u_boot_console.run_command('bcb ab_select slot_name host 0#misc')
88 assert 're-initializing A/B metadata' in output
89 assert 'Attempting slot a, tries remaining 7' in output
90 output = u_boot_console.run_command('printenv slot_name')
91 assert 'slot_name=a' in output
92 ab_dump(u_boot_console, 0, '0xd438d1b9')
94 output = u_boot_console.run_command('bcb ab_select slot_name host 0:1')
95 assert 'Attempting slot b, tries remaining 7' in output
96 output = u_boot_console.run_command('printenv slot_name')
97 assert 'slot_name=b' in output
98 ab_dump(u_boot_console, 1, '0x011ec016')