mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-26 21:13:48 +00:00
e64289e1ec
Checks that `make u-boot-initial-env` creates the text file u-boot-initial-env and checks that it at least contains `board=<something>`. Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com> Reviewed-by: Simon Glass <sjg@chromium.org>
652 lines
20 KiB
Python
652 lines
20 KiB
Python
# SPDX-License-Identifier: GPL-2.0
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# Copyright (c) 2015 Stephen Warren
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# Copyright (c) 2015-2016, NVIDIA CORPORATION. All rights reserved.
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"""
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Test operation of shell commands relating to environment variables.
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"""
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import os
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import os.path
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import re
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from subprocess import call, CalledProcessError
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import tempfile
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import pytest
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import u_boot_utils
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# FIXME: This might be useful for other tests;
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# perhaps refactor it into ConsoleBase or some other state object?
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class StateTestEnv(object):
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"""Container that represents the state of all U-Boot environment variables.
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This enables quick determination of existant/non-existant variable
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names.
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"""
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def __init__(self, u_boot_console):
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"""Initialize a new StateTestEnv 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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self.u_boot_console = u_boot_console
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self.get_env()
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self.set_var = self.get_non_existent_var()
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def get_env(self):
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"""Read all current environment variables from U-Boot.
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Args:
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None.
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Returns:
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Nothing.
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"""
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if self.u_boot_console.config.buildconfig.get(
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'config_version_variable', 'n') == 'y':
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with self.u_boot_console.disable_check('main_signon'):
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response = self.u_boot_console.run_command('printenv')
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else:
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response = self.u_boot_console.run_command('printenv')
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self.env = {}
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for l in response.splitlines():
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if not '=' in l:
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continue
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(var, value) = l.split('=', 1)
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self.env[var] = value
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def get_existent_var(self):
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"""Return the name of an environment variable that exists.
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Args:
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None.
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Returns:
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The name of an environment variable.
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"""
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for var in self.env:
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return var
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def get_non_existent_var(self):
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"""Return the name of an environment variable that does not exist.
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Args:
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None.
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Returns:
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The name of an environment variable.
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"""
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n = 0
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while True:
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var = 'test_env_' + str(n)
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if var not in self.env:
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return var
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n += 1
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ste = None
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@pytest.fixture(scope='function')
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def state_test_env(u_boot_console):
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"""pytest fixture to provide a StateTestEnv object to tests."""
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global ste
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if not ste:
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ste = StateTestEnv(u_boot_console)
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return ste
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def unset_var(state_test_env, var):
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"""Unset an environment variable.
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This both executes a U-Boot shell command and updates a StateTestEnv
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object.
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Args:
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state_test_env: The StateTestEnv object to update.
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var: The variable name to unset.
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Returns:
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Nothing.
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"""
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state_test_env.u_boot_console.run_command('setenv %s' % var)
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if var in state_test_env.env:
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del state_test_env.env[var]
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def set_var(state_test_env, var, value):
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"""Set an environment variable.
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This both executes a U-Boot shell command and updates a StateTestEnv
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object.
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Args:
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state_test_env: The StateTestEnv object to update.
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var: The variable name to set.
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value: The value to set the variable to.
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Returns:
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Nothing.
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"""
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bc = state_test_env.u_boot_console.config.buildconfig
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if bc.get('config_hush_parser', None):
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quote = '"'
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else:
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quote = ''
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if ' ' in value:
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pytest.skip('Space in variable value on non-Hush shell')
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state_test_env.u_boot_console.run_command(
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'setenv %s %s%s%s' % (var, quote, value, quote))
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state_test_env.env[var] = value
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def validate_empty(state_test_env, var):
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"""Validate that a variable is not set, using U-Boot shell commands.
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Args:
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var: The variable name to test.
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Returns:
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Nothing.
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"""
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response = state_test_env.u_boot_console.run_command('echo ${%s}' % var)
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assert response == ''
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def validate_set(state_test_env, var, value):
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"""Validate that a variable is set, using U-Boot shell commands.
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Args:
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var: The variable name to test.
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value: The value the variable is expected to have.
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Returns:
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Nothing.
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"""
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# echo does not preserve leading, internal, or trailing whitespace in the
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# value. printenv does, and hence allows more complete testing.
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response = state_test_env.u_boot_console.run_command('printenv %s' % var)
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assert response == ('%s=%s' % (var, value))
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@pytest.mark.boardspec('sandbox')
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def test_env_initial_env_file(u_boot_console):
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"""Test that the u-boot-initial-env make target works"""
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cons = u_boot_console
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builddir = 'O=' + cons.config.build_dir
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envfile = cons.config.build_dir + '/u-boot-initial-env'
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# remove if already exists from an older run
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try:
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os.remove(envfile)
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except:
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pass
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u_boot_utils.run_and_log(cons, ['make', builddir, 'u-boot-initial-env'])
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assert os.path.exists(envfile)
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# assume that every environment has a board variable, e.g. board=sandbox
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with open(envfile, 'r') as file:
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env = file.read()
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regex = re.compile('board=.+\\n')
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assert re.search(regex, env)
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def test_env_echo_exists(state_test_env):
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"""Test echoing a variable that exists."""
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var = state_test_env.get_existent_var()
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value = state_test_env.env[var]
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validate_set(state_test_env, var, value)
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@pytest.mark.buildconfigspec('cmd_echo')
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def test_env_echo_non_existent(state_test_env):
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"""Test echoing a variable that doesn't exist."""
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var = state_test_env.set_var
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validate_empty(state_test_env, var)
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def test_env_printenv_non_existent(state_test_env):
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"""Test printenv error message for non-existant variables."""
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var = state_test_env.set_var
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c = state_test_env.u_boot_console
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with c.disable_check('error_notification'):
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response = c.run_command('printenv %s' % var)
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assert response == '## Error: "%s" not defined' % var
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@pytest.mark.buildconfigspec('cmd_echo')
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def test_env_unset_non_existent(state_test_env):
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"""Test unsetting a nonexistent variable."""
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var = state_test_env.get_non_existent_var()
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unset_var(state_test_env, var)
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validate_empty(state_test_env, var)
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def test_env_set_non_existent(state_test_env):
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"""Test set a non-existant variable."""
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var = state_test_env.set_var
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value = 'foo'
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set_var(state_test_env, var, value)
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validate_set(state_test_env, var, value)
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def test_env_set_existing(state_test_env):
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"""Test setting an existant variable."""
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var = state_test_env.set_var
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value = 'bar'
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set_var(state_test_env, var, value)
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validate_set(state_test_env, var, value)
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@pytest.mark.buildconfigspec('cmd_echo')
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def test_env_unset_existing(state_test_env):
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"""Test unsetting a variable."""
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var = state_test_env.set_var
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unset_var(state_test_env, var)
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validate_empty(state_test_env, var)
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def test_env_expansion_spaces(state_test_env):
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"""Test expanding a variable that contains a space in its value."""
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var_space = None
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var_test = None
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try:
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var_space = state_test_env.get_non_existent_var()
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set_var(state_test_env, var_space, ' ')
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var_test = state_test_env.get_non_existent_var()
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value = ' 1${%(var_space)s}${%(var_space)s} 2 ' % locals()
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set_var(state_test_env, var_test, value)
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value = ' 1 2 '
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validate_set(state_test_env, var_test, value)
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finally:
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if var_space:
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unset_var(state_test_env, var_space)
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if var_test:
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unset_var(state_test_env, var_test)
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@pytest.mark.buildconfigspec('cmd_importenv')
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def test_env_import_checksum_no_size(state_test_env):
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"""Test that omitted ('-') size parameter with checksum validation fails the
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env import function.
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"""
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c = state_test_env.u_boot_console
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ram_base = u_boot_utils.find_ram_base(state_test_env.u_boot_console)
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addr = '%08x' % ram_base
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with c.disable_check('error_notification'):
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response = c.run_command('env import -c %s -' % addr)
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assert response == '## Error: external checksum format must pass size'
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@pytest.mark.buildconfigspec('cmd_importenv')
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def test_env_import_whitelist_checksum_no_size(state_test_env):
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"""Test that omitted ('-') size parameter with checksum validation fails the
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env import function when variables are passed as parameters.
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"""
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c = state_test_env.u_boot_console
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ram_base = u_boot_utils.find_ram_base(state_test_env.u_boot_console)
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addr = '%08x' % ram_base
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with c.disable_check('error_notification'):
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response = c.run_command('env import -c %s - foo1 foo2 foo4' % addr)
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assert response == '## Error: external checksum format must pass size'
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@pytest.mark.buildconfigspec('cmd_exportenv')
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@pytest.mark.buildconfigspec('cmd_importenv')
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def test_env_import_whitelist(state_test_env):
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"""Test importing only a handful of env variables from an environment."""
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c = state_test_env.u_boot_console
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ram_base = u_boot_utils.find_ram_base(state_test_env.u_boot_console)
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addr = '%08x' % ram_base
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set_var(state_test_env, 'foo1', 'bar1')
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set_var(state_test_env, 'foo2', 'bar2')
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set_var(state_test_env, 'foo3', 'bar3')
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c.run_command('env export %s' % addr)
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unset_var(state_test_env, 'foo1')
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set_var(state_test_env, 'foo2', 'test2')
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set_var(state_test_env, 'foo4', 'bar4')
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# no foo1 in current env, foo2 overridden, foo3 should be of the value
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# before exporting and foo4 should be of the value before importing.
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c.run_command('env import %s - foo1 foo2 foo4' % addr)
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validate_set(state_test_env, 'foo1', 'bar1')
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validate_set(state_test_env, 'foo2', 'bar2')
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validate_set(state_test_env, 'foo3', 'bar3')
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validate_set(state_test_env, 'foo4', 'bar4')
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# Cleanup test environment
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unset_var(state_test_env, 'foo1')
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unset_var(state_test_env, 'foo2')
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unset_var(state_test_env, 'foo3')
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unset_var(state_test_env, 'foo4')
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@pytest.mark.buildconfigspec('cmd_exportenv')
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@pytest.mark.buildconfigspec('cmd_importenv')
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def test_env_import_whitelist_delete(state_test_env):
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"""Test importing only a handful of env variables from an environment, with.
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deletion if a var A that is passed to env import is not in the
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environment to be imported.
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"""
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c = state_test_env.u_boot_console
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ram_base = u_boot_utils.find_ram_base(state_test_env.u_boot_console)
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addr = '%08x' % ram_base
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set_var(state_test_env, 'foo1', 'bar1')
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set_var(state_test_env, 'foo2', 'bar2')
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set_var(state_test_env, 'foo3', 'bar3')
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c.run_command('env export %s' % addr)
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unset_var(state_test_env, 'foo1')
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set_var(state_test_env, 'foo2', 'test2')
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set_var(state_test_env, 'foo4', 'bar4')
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# no foo1 in current env, foo2 overridden, foo3 should be of the value
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# before exporting and foo4 should be empty.
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c.run_command('env import -d %s - foo1 foo2 foo4' % addr)
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validate_set(state_test_env, 'foo1', 'bar1')
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validate_set(state_test_env, 'foo2', 'bar2')
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validate_set(state_test_env, 'foo3', 'bar3')
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validate_empty(state_test_env, 'foo4')
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# Cleanup test environment
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unset_var(state_test_env, 'foo1')
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unset_var(state_test_env, 'foo2')
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unset_var(state_test_env, 'foo3')
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unset_var(state_test_env, 'foo4')
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@pytest.mark.buildconfigspec('cmd_nvedit_info')
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def test_env_info(state_test_env):
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"""Test 'env info' command with all possible options.
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"""
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c = state_test_env.u_boot_console
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response = c.run_command('env info')
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nb_line = 0
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for l in response.split('\n'):
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if 'env_valid = ' in l:
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assert '= invalid' in l or '= valid' in l or '= redundant' in l
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nb_line += 1
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elif 'env_ready =' in l or 'env_use_default =' in l:
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assert '= true' in l or '= false' in l
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nb_line += 1
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else:
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assert True
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assert nb_line == 3
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response = c.run_command('env info -p -d')
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assert 'Default environment is used' in response or \
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"Environment was loaded from persistent storage" in response
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assert 'Environment can be persisted' in response or \
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"Environment cannot be persisted" in response
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response = c.run_command('env info -p -d -q')
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assert response == ""
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response = c.run_command('env info -p -q')
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assert response == ""
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response = c.run_command('env info -d -q')
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assert response == ""
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@pytest.mark.boardspec('sandbox')
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@pytest.mark.buildconfigspec('cmd_nvedit_info')
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@pytest.mark.buildconfigspec('cmd_echo')
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def test_env_info_sandbox(state_test_env):
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"""Test 'env info' command result with several options on sandbox
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with a known ENV configuration: ready & default & persistent
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"""
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c = state_test_env.u_boot_console
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response = c.run_command('env info')
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assert 'env_ready = true' in response
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assert 'env_use_default = true' in response
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response = c.run_command('env info -p -d')
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assert 'Default environment is used' in response
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assert 'Environment cannot be persisted' in response
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response = c.run_command('env info -d -q')
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response = c.run_command('echo $?')
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assert response == "0"
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response = c.run_command('env info -p -q')
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response = c.run_command('echo $?')
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assert response == "1"
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response = c.run_command('env info -d -p -q')
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response = c.run_command('echo $?')
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assert response == "1"
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def mk_env_ext4(state_test_env):
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"""Create a empty ext4 file system volume."""
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c = state_test_env.u_boot_console
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filename = 'env.ext4.img'
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persistent = c.config.persistent_data_dir + '/' + filename
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fs_img = c.config.result_dir + '/' + filename
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if os.path.exists(persistent):
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c.log.action('Disk image file ' + persistent + ' already exists')
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else:
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# Some distributions do not add /sbin to the default PATH, where mkfs.ext4 lives
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os.environ["PATH"] += os.pathsep + '/sbin'
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try:
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u_boot_utils.run_and_log(c, 'dd if=/dev/zero of=%s bs=1M count=16' % persistent)
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u_boot_utils.run_and_log(c, 'mkfs.ext4 %s' % persistent)
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sb_content = u_boot_utils.run_and_log(c, 'tune2fs -l %s' % persistent)
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if 'metadata_csum' in sb_content:
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u_boot_utils.run_and_log(c, 'tune2fs -O ^metadata_csum %s' % persistent)
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except CalledProcessError:
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call('rm -f %s' % persistent, shell=True)
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raise
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u_boot_utils.run_and_log(c, ['cp', '-f', persistent, fs_img])
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return fs_img
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@pytest.mark.boardspec('sandbox')
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@pytest.mark.buildconfigspec('cmd_echo')
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@pytest.mark.buildconfigspec('cmd_nvedit_info')
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@pytest.mark.buildconfigspec('cmd_nvedit_load')
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@pytest.mark.buildconfigspec('cmd_nvedit_select')
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@pytest.mark.buildconfigspec('env_is_in_ext4')
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def test_env_ext4(state_test_env):
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"""Test ENV in EXT4 on sandbox."""
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c = state_test_env.u_boot_console
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fs_img = ''
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try:
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fs_img = mk_env_ext4(state_test_env)
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c.run_command('host bind 0 %s' % fs_img)
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response = c.run_command('ext4ls host 0:0')
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assert 'uboot.env' not in response
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# force env location: EXT4 (prio 1 in sandbox)
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response = c.run_command('env select EXT4')
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assert 'Select Environment on EXT4: OK' in response
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response = c.run_command('env save')
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assert 'Saving Environment to EXT4' in response
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response = c.run_command('env load')
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|
assert 'Loading Environment from EXT4... OK' in response
|
|
|
|
response = c.run_command('ext4ls host 0:0')
|
|
assert '8192 uboot.env' in response
|
|
|
|
response = c.run_command('env info')
|
|
assert 'env_valid = valid' in response
|
|
assert 'env_ready = true' in response
|
|
assert 'env_use_default = false' in response
|
|
|
|
response = c.run_command('env info -p -d')
|
|
assert 'Environment was loaded from persistent storage' in response
|
|
assert 'Environment can be persisted' in response
|
|
|
|
response = c.run_command('env info -d -q')
|
|
assert response == ""
|
|
response = c.run_command('echo $?')
|
|
assert response == "1"
|
|
|
|
response = c.run_command('env info -p -q')
|
|
assert response == ""
|
|
response = c.run_command('echo $?')
|
|
assert response == "0"
|
|
|
|
response = c.run_command('env erase')
|
|
assert 'OK' in response
|
|
|
|
response = c.run_command('env load')
|
|
assert 'Loading Environment from EXT4... ' in response
|
|
assert 'bad CRC, using default environment' in response
|
|
|
|
response = c.run_command('env info')
|
|
assert 'env_valid = invalid' in response
|
|
assert 'env_ready = true' in response
|
|
assert 'env_use_default = true' in response
|
|
|
|
response = c.run_command('env info -p -d')
|
|
assert 'Default environment is used' in response
|
|
assert 'Environment can be persisted' in response
|
|
|
|
# restore env location: NOWHERE (prio 0 in sandbox)
|
|
response = c.run_command('env select nowhere')
|
|
assert 'Select Environment on nowhere: OK' in response
|
|
|
|
response = c.run_command('env load')
|
|
assert 'Loading Environment from nowhere... OK' in response
|
|
|
|
response = c.run_command('env info')
|
|
assert 'env_valid = invalid' in response
|
|
assert 'env_ready = true' in response
|
|
assert 'env_use_default = true' in response
|
|
|
|
response = c.run_command('env info -p -d')
|
|
assert 'Default environment is used' in response
|
|
assert 'Environment cannot be persisted' in response
|
|
|
|
finally:
|
|
if fs_img:
|
|
call('rm -f %s' % fs_img, shell=True)
|
|
|
|
def test_env_text(u_boot_console):
|
|
"""Test the script that converts the environment to a text file"""
|
|
|
|
def check_script(intext, expect_val):
|
|
"""Check a test case
|
|
|
|
Args:
|
|
intext: Text to pass to the script
|
|
expect_val: Expected value of the CONFIG_EXTRA_ENV_TEXT string, or
|
|
None if we expect it not to be defined
|
|
"""
|
|
with tempfile.TemporaryDirectory() as path:
|
|
fname = os.path.join(path, 'infile')
|
|
with open(fname, 'w') as inf:
|
|
print(intext, file=inf)
|
|
result = u_boot_utils.run_and_log(cons, ['awk', '-f', script, fname])
|
|
if expect_val is not None:
|
|
expect = '#define CONFIG_EXTRA_ENV_TEXT "%s"\n' % expect_val
|
|
assert result == expect
|
|
else:
|
|
assert result == ''
|
|
|
|
cons = u_boot_console
|
|
script = os.path.join(cons.config.source_dir, 'scripts', 'env2string.awk')
|
|
|
|
# simple script with a single var
|
|
check_script('fred=123', 'fred=123\\0')
|
|
|
|
# no vars
|
|
check_script('', None)
|
|
|
|
# two vars
|
|
check_script('''fred=123
|
|
mary=456''', 'fred=123\\0mary=456\\0')
|
|
|
|
# blank lines
|
|
check_script('''fred=123
|
|
|
|
|
|
mary=456
|
|
|
|
''', 'fred=123\\0mary=456\\0')
|
|
|
|
# append
|
|
check_script('''fred=123
|
|
mary=456
|
|
fred+= 456''', 'fred=123 456\\0mary=456\\0')
|
|
|
|
# append from empty
|
|
check_script('''fred=
|
|
mary=456
|
|
fred+= 456''', 'fred= 456\\0mary=456\\0')
|
|
|
|
# variable with + in it
|
|
check_script('fred+mary=123', 'fred+mary=123\\0')
|
|
|
|
# ignores variables that are empty
|
|
check_script('''fred=
|
|
fred+=
|
|
mary=456''', 'mary=456\\0')
|
|
|
|
# single-character env name
|
|
check_script('''m=123
|
|
e=456
|
|
m+= 456''', 'e=456\\0m=123 456\\0')
|
|
|
|
# contains quotes
|
|
check_script('''fred="my var"
|
|
mary=another"''', 'fred=\\"my var\\"\\0mary=another\\"\\0')
|
|
|
|
# variable name ending in +
|
|
check_script('''fred\\+=my var
|
|
fred++= again''', 'fred+=my var again\\0')
|
|
|
|
# variable name containing +
|
|
check_script('''fred+jane=both
|
|
fred+jane+=again
|
|
mary=456''', 'fred+jane=bothagain\\0mary=456\\0')
|
|
|
|
# multi-line vars - new vars always start at column 1
|
|
check_script('''fred=first
|
|
second
|
|
\tthird with tab
|
|
|
|
after blank
|
|
confusing=oops
|
|
mary=another"''', 'fred=first second third with tab after blank confusing=oops\\0mary=another\\"\\0')
|
|
|
|
# real-world example
|
|
check_script('''ubifs_boot=
|
|
env exists bootubipart ||
|
|
env set bootubipart UBI;
|
|
env exists bootubivol ||
|
|
env set bootubivol boot;
|
|
if ubi part ${bootubipart} &&
|
|
ubifsmount ubi${devnum}:${bootubivol};
|
|
then
|
|
devtype=ubi;
|
|
run scan_dev_for_boot;
|
|
fi
|
|
''',
|
|
'ubifs_boot=env exists bootubipart || env set bootubipart UBI; '
|
|
'env exists bootubivol || env set bootubivol boot; '
|
|
'if ubi part ${bootubipart} && ubifsmount ubi${devnum}:${bootubivol}; '
|
|
'then devtype=ubi; run scan_dev_for_boot; fi\\0')
|