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ac122efdb6
test_gpt generates a persistent disk image which can be re-used across multiple test runs. Currently, if the Python code that generates the disk image change, the image is not regenerated, which could cause test failures e.g. if a test was updated to expect some new partition name or size, yet the persistent disk image contained the old name or size. This change introduces functionality to regenerate the disk image if the instructions to generate the image have changed. Signed-off-by: Stephen Warren <swarren@nvidia.com>
174 lines
7.1 KiB
Python
174 lines
7.1 KiB
Python
# Copyright (c) 2017 Alison Chaiken
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# Copyright (c) 2017, NVIDIA CORPORATION. All rights reserved.
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#
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# SPDX-License-Identifier: GPL-2.0
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# Test GPT manipulation commands.
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import os
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import pytest
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import u_boot_utils
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"""
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These tests rely on a 4 MB disk image, which is automatically created by
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the test.
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"""
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class GptTestDiskImage(object):
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"""Disk Image used by the GPT tests."""
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def __init__(self, u_boot_console):
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"""Initialize a new GptTestDiskImage object.
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Args:
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u_boot_console: A U-Boot console.
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Returns:
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Nothing.
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"""
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filename = 'test_gpt_disk_image.bin'
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persistent = u_boot_console.config.persistent_data_dir + '/' + filename
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self.path = u_boot_console.config.result_dir + '/' + filename
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with u_boot_utils.persistent_file_helper(u_boot_console.log, persistent):
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if os.path.exists(persistent):
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u_boot_console.log.action('Disk image file ' + persistent +
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' already exists')
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else:
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u_boot_console.log.action('Generating ' + persistent)
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fd = os.open(persistent, os.O_RDWR | os.O_CREAT)
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os.ftruncate(fd, 4194304)
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os.close(fd)
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cmd = ('sgdisk', '-U', '375a56f7-d6c9-4e81-b5f0-09d41ca89efe',
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persistent)
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u_boot_utils.run_and_log(u_boot_console, cmd)
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cmd = ('sgdisk', '--new=1:2048:2560', '-c 1:part1', persistent)
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u_boot_utils.run_and_log(u_boot_console, cmd)
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cmd = ('sgdisk', '--new=2:4096:4608', '-c 2:part2', persistent)
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u_boot_utils.run_and_log(u_boot_console, cmd)
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cmd = ('sgdisk', '-l', persistent)
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u_boot_utils.run_and_log(u_boot_console, cmd)
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cmd = ('cp', persistent, self.path)
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u_boot_utils.run_and_log(u_boot_console, cmd)
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gtdi = None
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@pytest.fixture(scope='function')
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def state_disk_image(u_boot_console):
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"""pytest fixture to provide a GptTestDiskImage object to tests.
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This is function-scoped because it uses u_boot_console, which is also
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function-scoped. However, we don't need to actually do any function-scope
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work, so this simply returns the same object over and over each time."""
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global gtdi
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if not gtdi:
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gtdi = GptTestDiskImage(u_boot_console)
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return gtdi
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@pytest.mark.boardspec('sandbox')
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@pytest.mark.buildconfigspec('cmd_gpt')
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@pytest.mark.buildconfigspec('cmd_part')
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@pytest.mark.requiredtool('sgdisk')
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def test_gpt_read(state_disk_image, u_boot_console):
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"""Test the gpt read command."""
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u_boot_console.run_command('host bind 0 ' + state_disk_image.path)
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output = u_boot_console.run_command('gpt read host 0')
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assert 'Start 1MiB, size 0MiB' in output
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assert 'Block size 512, name part1' in output
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assert 'Start 2MiB, size 0MiB' in output
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assert 'Block size 512, name part2' in output
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output = u_boot_console.run_command('part list host 0')
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assert '0x00000800 0x00000a00 "part1"' in output
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assert '0x00001000 0x00001200 "part2"' in output
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@pytest.mark.boardspec('sandbox')
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@pytest.mark.buildconfigspec('cmd_gpt')
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@pytest.mark.requiredtool('sgdisk')
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def test_gpt_verify(state_disk_image, u_boot_console):
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"""Test the gpt verify command."""
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u_boot_console.run_command('host bind 0 ' + state_disk_image.path)
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output = u_boot_console.run_command('gpt verify host 0')
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assert 'Verify GPT: success!' in output
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@pytest.mark.boardspec('sandbox')
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@pytest.mark.buildconfigspec('cmd_gpt')
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@pytest.mark.requiredtool('sgdisk')
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def test_gpt_guid(state_disk_image, u_boot_console):
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"""Test the gpt guid command."""
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u_boot_console.run_command('host bind 0 ' + state_disk_image.path)
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output = u_boot_console.run_command('gpt guid host 0')
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assert '375a56f7-d6c9-4e81-b5f0-09d41ca89efe' in output
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@pytest.mark.boardspec('sandbox')
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@pytest.mark.buildconfigspec('cmd_gpt')
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@pytest.mark.requiredtool('sgdisk')
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def test_gpt_save_guid(state_disk_image, u_boot_console):
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"""Test the gpt guid command to save GUID into a string."""
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if u_boot_console.config.buildconfig.get('config_cmd_gpt', 'n') != 'y':
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pytest.skip('gpt command not supported')
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u_boot_console.run_command('host bind 0 ' + state_disk_image.path)
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output = u_boot_console.run_command('gpt guid host 0 newguid')
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output = u_boot_console.run_command('printenv newguid')
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assert '375a56f7-d6c9-4e81-b5f0-09d41ca89efe' in output
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@pytest.mark.boardspec('sandbox')
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@pytest.mark.buildconfigspec('cmd_gpt')
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@pytest.mark.buildconfigspec('cmd_gpt_rename')
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@pytest.mark.buildconfigspec('cmd_part')
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@pytest.mark.requiredtool('sgdisk')
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def test_gpt_rename_partition(state_disk_image, u_boot_console):
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"""Test the gpt rename command to write partition names."""
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u_boot_console.run_command('host bind 0 ' + state_disk_image.path)
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u_boot_console.run_command('gpt rename host 0 1 first')
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output = u_boot_console.run_command('gpt read host 0')
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assert 'name first' in output
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u_boot_console.run_command('gpt rename host 0 2 second')
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output = u_boot_console.run_command('gpt read host 0')
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assert 'name second' in output
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output = u_boot_console.run_command('part list host 0')
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assert '0x00000800 0x00000a00 "first"' in output
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assert '0x00001000 0x00001200 "second"' in output
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@pytest.mark.boardspec('sandbox')
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@pytest.mark.buildconfigspec('cmd_gpt')
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@pytest.mark.buildconfigspec('cmd_gpt_rename')
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@pytest.mark.buildconfigspec('cmd_part')
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@pytest.mark.requiredtool('sgdisk')
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def test_gpt_swap_partitions(state_disk_image, u_boot_console):
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"""Test the gpt swap command to exchange two partition names."""
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u_boot_console.run_command('host bind 0 ' + state_disk_image.path)
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output = u_boot_console.run_command('part list host 0')
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assert '0x00000800 0x00000a00 "first"' in output
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assert '0x00001000 0x00001200 "second"' in output
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u_boot_console.run_command('gpt swap host 0 first second')
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output = u_boot_console.run_command('part list host 0')
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assert '0x00000800 0x00000a00 "second"' in output
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assert '0x00001000 0x00001200 "first"' in output
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@pytest.mark.boardspec('sandbox')
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@pytest.mark.buildconfigspec('cmd_gpt')
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@pytest.mark.buildconfigspec('cmd_part')
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@pytest.mark.requiredtool('sgdisk')
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def test_gpt_write(state_disk_image, u_boot_console):
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"""Test the gpt write command."""
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u_boot_console.run_command('host bind 0 ' + state_disk_image.path)
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output = u_boot_console.run_command('gpt write host 0 "name=all,size=0"')
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assert 'Writing GPT: success!' in output
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output = u_boot_console.run_command('part list host 0')
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assert '0x00000022 0x00001fde "all"' in output
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output = u_boot_console.run_command('gpt write host 0 "uuid_disk=375a56f7-d6c9-4e81-b5f0-09d41ca89efe;name=first,start=0x100000,size=0x40200;name=second,start=0x200000,size=0x40200;"')
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assert 'Writing GPT: success!' in output
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output = u_boot_console.run_command('part list host 0')
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assert '0x00000800 0x00000a00 "first"' in output
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assert '0x00001000 0x00001200 "second"' in output
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output = u_boot_console.run_command('gpt guid host 0')
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assert '375a56f7-d6c9-4e81-b5f0-09d41ca89efe' in output
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