u-boot/test/py/tests/test_hush_if_test.py
Stephen Warren e8debf394f test/py: use " for docstrings
Python's coding style docs indicate to use " not ' for docstrings.

test/py has other violations of the coding style docs, since the docs
specify a stranger style than I would expect, but nobody has complained
about those yet:-)

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-01-28 21:01:24 -07:00

154 lines
4.2 KiB
Python

# Copyright (c) 2015-2016, NVIDIA CORPORATION. All rights reserved.
#
# SPDX-License-Identifier: GPL-2.0
# Test operation of the "if" shell command.
import os
import os.path
import pytest
# The list of "if test" conditions to test.
subtests = (
# Base if functionality.
('true', True),
('false', False),
# Basic operators.
('test aaa = aaa', True),
('test aaa = bbb', False),
('test aaa != bbb', True),
('test aaa != aaa', False),
('test aaa < bbb', True),
('test bbb < aaa', False),
('test bbb > aaa', True),
('test aaa > bbb', False),
('test 123 -eq 123', True),
('test 123 -eq 456', False),
('test 123 -ne 456', True),
('test 123 -ne 123', False),
('test 123 -lt 456', True),
('test 123 -lt 123', False),
('test 456 -lt 123', False),
('test 123 -le 456', True),
('test 123 -le 123', True),
('test 456 -le 123', False),
('test 456 -gt 123', True),
('test 123 -gt 123', False),
('test 123 -gt 456', False),
('test 456 -ge 123', True),
('test 123 -ge 123', True),
('test 123 -ge 456', False),
('test -z ""', True),
('test -z "aaa"', False),
('test -n "aaa"', True),
('test -n ""', False),
# Inversion of simple tests.
('test ! aaa = aaa', False),
('test ! aaa = bbb', True),
('test ! ! aaa = aaa', True),
('test ! ! aaa = bbb', False),
# Binary operators.
('test aaa != aaa -o bbb != bbb', False),
('test aaa != aaa -o bbb = bbb', True),
('test aaa = aaa -o bbb != bbb', True),
('test aaa = aaa -o bbb = bbb', True),
('test aaa != aaa -a bbb != bbb', False),
('test aaa != aaa -a bbb = bbb', False),
('test aaa = aaa -a bbb != bbb', False),
('test aaa = aaa -a bbb = bbb', True),
# Inversion within binary operators.
('test ! aaa != aaa -o ! bbb != bbb', True),
('test ! aaa != aaa -o ! bbb = bbb', True),
('test ! aaa = aaa -o ! bbb != bbb', True),
('test ! aaa = aaa -o ! bbb = bbb', False),
('test ! ! aaa != aaa -o ! ! bbb != bbb', False),
('test ! ! aaa != aaa -o ! ! bbb = bbb', True),
('test ! ! aaa = aaa -o ! ! bbb != bbb', True),
('test ! ! aaa = aaa -o ! ! bbb = bbb', True),
# -z operator.
('test -z "$ut_var_nonexistent"', True),
('test -z "$ut_var_exists"', False),
)
def exec_hush_if(u_boot_console, expr, result):
"""Execute a shell "if" command, and validate its result."""
cmd = 'if ' + expr + '; then echo true; else echo false; fi'
response = u_boot_console.run_command(cmd)
assert response.strip() == str(result).lower()
@pytest.mark.buildconfigspec('sys_hush_parser')
def test_hush_if_test_setup(u_boot_console):
"""Set up environment variables used during the "if" tests."""
u_boot_console.run_command('setenv ut_var_nonexistent')
u_boot_console.run_command('setenv ut_var_exists 1')
@pytest.mark.buildconfigspec('sys_hush_parser')
@pytest.mark.parametrize('expr,result', subtests)
def test_hush_if_test(u_boot_console, expr, result):
"""Test a single "if test" condition."""
exec_hush_if(u_boot_console, expr, result)
@pytest.mark.buildconfigspec('sys_hush_parser')
def test_hush_if_test_teardown(u_boot_console):
"""Clean up environment variables used during the "if" tests."""
u_boot_console.run_command('setenv ut_var_exists')
@pytest.mark.buildconfigspec('sys_hush_parser')
# We might test this on real filesystems via UMS, DFU, 'save', etc.
# Of those, only UMS currently allows file removal though.
@pytest.mark.boardspec('sandbox')
def test_hush_if_test_host_file_exists(u_boot_console):
"""Test the "if test -e" shell command."""
test_file = u_boot_console.config.result_dir + \
'/creating_this_file_breaks_u_boot_tests'
try:
os.unlink(test_file)
except:
pass
assert not os.path.exists(test_file)
expr = 'test -e hostfs - ' + test_file
exec_hush_if(u_boot_console, expr, False)
try:
with file(test_file, 'wb'):
pass
assert os.path.exists(test_file)
expr = 'test -e hostfs - ' + test_file
exec_hush_if(u_boot_console, expr, True)
finally:
os.unlink(test_file)
expr = 'test -e hostfs - ' + test_file
exec_hush_if(u_boot_console, expr, False)