u-boot/test/py/tests/test_ut.py

# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved.

import os.path
import pytest

@pytest.mark.buildconfigspec('ut_dm')
def test_ut_dm_init(u_boot_console):
    """Initialize data for ut dm tests."""

    fn = u_boot_console.config.source_dir + '/testflash.bin'
    if not os.path.exists(fn):
        data = b'this is a test'
        data += b'\x00' * ((4 * 1024 * 1024) - len(data))
        with open(fn, 'wb') as fh:
            fh.write(data)

    fn = u_boot_console.config.source_dir + '/spi.bin'
    if not os.path.exists(fn):
        data = b'\x00' * (2 * 1024 * 1024)
        with open(fn, 'wb') as fh:
            fh.write(data)

def test_ut(u_boot_console, ut_subtest):
    """Execute a "ut" subtest.

    The subtests are collected in function generate_ut_subtest() from linker
    generated lists by applying a regular expression to the lines of file
    u-boot.sym. The list entries are created using the C macro UNIT_TEST().

    Strict naming conventions have to be followed to match the regular
    expression. Use UNIT_TEST(foo_test_bar, _flags, foo_test) for a test bar in
    test suite foo that can be executed via command 'ut foo bar' and is
    implemented in C function foo_test_bar().

    Args:
        u_boot_console (ConsoleBase): U-Boot console
        ut_subtest (str): test to be executed via command ut, e.g 'foo bar' to
            execute command 'ut foo bar'
    """

    output = u_boot_console.run_command('ut ' + ut_subtest)
    assert output.endswith('Failures: 0')