diff options
author | Simon Glass <sjg@chromium.org> | 2025-02-09 09:07:15 -0700 |
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committer | Simon Glass <sjg@chromium.org> | 2025-03-15 11:02:04 +0000 |
commit | d9ed4b75add4b4ccc37cf32b54cd9c77f48e3396 (patch) | |
tree | 842b5b9b6ede8c5aa232cc6c60395618be6b6c21 /test/py/u_boot_console_base.py | |
parent | 752c3769874596d012cd8325099d2ae20123f989 (diff) |
test/py: Drop u_boot_ prefix on test files
We know this is U-Boot so the prefix serves no purpose other than to
make things longer and harder to read. Drop it and rename the files.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com> # test_android / test_dfu
Diffstat (limited to 'test/py/u_boot_console_base.py')
-rw-r--r-- | test/py/u_boot_console_base.py | 613 |
1 files changed, 0 insertions, 613 deletions
diff --git a/test/py/u_boot_console_base.py b/test/py/u_boot_console_base.py deleted file mode 100644 index 7eaceb39d9d..00000000000 --- a/test/py/u_boot_console_base.py +++ /dev/null @@ -1,613 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0 -# Copyright (c) 2015 Stephen Warren -# Copyright (c) 2015-2016, NVIDIA CORPORATION. All rights reserved. - -# Common logic to interact with U-Boot via the console. This class provides -# the interface that tests use to execute U-Boot shell commands and wait for -# their results. Sub-classes exist to perform board-type-specific setup -# operations, such as spawning a sub-process for Sandbox, or attaching to the -# serial console of real hardware. - -import multiplexed_log -import os -import pytest -import re -import sys -import u_boot_spawn -from u_boot_spawn import BootFail, Timeout, Unexpected, handle_exception - -# Regexes for text we expect U-Boot to send to the console. -pattern_u_boot_spl_signon = re.compile('(U-Boot SPL \\d{4}\\.\\d{2}[^\r\n]*\\))') -pattern_u_boot_main_signon = re.compile('(U-Boot \\d{4}\\.\\d{2}[^\r\n]*\\))') -pattern_stop_autoboot_prompt = re.compile('Hit any key to stop autoboot: ') -pattern_unknown_command = re.compile('Unknown command \'.*\' - try \'help\'') -pattern_error_notification = re.compile('## Error: ') -pattern_error_please_reset = re.compile('### ERROR ### Please RESET the board ###') -pattern_ready_prompt = re.compile('{lab ready in (.*)s: (.*)}') -pattern_lab_mode = re.compile('{lab mode.*}') - -PAT_ID = 0 -PAT_RE = 1 - -# Timeout before expecting the console to be ready (in milliseconds) -TIMEOUT_MS = 30000 # Standard timeout -TIMEOUT_CMD_MS = 10000 # Command-echo timeout - -# Timeout for board preparation in lab mode. This needs to be enough to build -# U-Boot, write it to the board and then boot the board. Since this process is -# under the control of another program (e.g. Labgrid), it will failure sooner -# if something goes way. So use a very long timeout here to cover all possible -# situations. -TIMEOUT_PREPARE_MS = 3 * 60 * 1000 - -bad_pattern_defs = ( - ('spl_signon', pattern_u_boot_spl_signon), - ('main_signon', pattern_u_boot_main_signon), - ('stop_autoboot_prompt', pattern_stop_autoboot_prompt), - ('unknown_command', pattern_unknown_command), - ('error_notification', pattern_error_notification), - ('error_please_reset', pattern_error_please_reset), -) - -class ConsoleDisableCheck(object): - """Context manager (for Python's with statement) that temporarily disables - the specified console output error check. This is useful when deliberately - executing a command that is known to trigger one of the error checks, in - order to test that the error condition is actually raised. This class is - used internally by ConsoleBase::disable_check(); it is not intended for - direct usage.""" - - def __init__(self, console, check_type): - self.console = console - self.check_type = check_type - - def __enter__(self): - self.console.disable_check_count[self.check_type] += 1 - self.console.eval_bad_patterns() - - def __exit__(self, extype, value, traceback): - self.console.disable_check_count[self.check_type] -= 1 - self.console.eval_bad_patterns() - -class ConsoleEnableCheck(object): - """Context manager (for Python's with statement) that temporarily enables - the specified console output error check. This is useful when executing a - command that might raise an extra bad pattern, beyond the default bad - patterns, in order to validate that the extra bad pattern is actually - detected. This class is used internally by ConsoleBase::enable_check(); it - is not intended for direct usage.""" - - def __init__(self, console, check_type, check_pattern): - self.console = console - self.check_type = check_type - self.check_pattern = check_pattern - - def __enter__(self): - global bad_pattern_defs - self.default_bad_patterns = bad_pattern_defs - bad_pattern_defs += ((self.check_type, self.check_pattern),) - self.console.disable_check_count = {pat[PAT_ID]: 0 for pat in bad_pattern_defs} - self.console.eval_bad_patterns() - - def __exit__(self, extype, value, traceback): - global bad_pattern_defs - bad_pattern_defs = self.default_bad_patterns - self.console.disable_check_count = {pat[PAT_ID]: 0 for pat in bad_pattern_defs} - self.console.eval_bad_patterns() - -class ConsoleSetupTimeout(object): - """Context manager (for Python's with statement) that temporarily sets up - timeout for specific command. This is useful when execution time is greater - then default 30s.""" - - def __init__(self, console, timeout): - self.p = console.p - self.orig_timeout = self.p.timeout - self.p.timeout = timeout - - def __enter__(self): - return self - - def __exit__(self, extype, value, traceback): - self.p.timeout = self.orig_timeout - -class ConsoleBase(object): - """The interface through which test functions interact with the U-Boot - console. This primarily involves executing shell commands, capturing their - results, and checking for common error conditions. Some common utilities - are also provided too.""" - - def __init__(self, log, config, max_fifo_fill): - """Initialize a U-Boot console connection. - - Can only usefully be called by sub-classes. - - Args: - log: A multiplexed_log.Logfile object, to which the U-Boot output - will be logged. - config: A configuration data structure, as built by conftest.py. - max_fifo_fill: The maximum number of characters to send to U-Boot - command-line before waiting for U-Boot to echo the characters - back. For UART-based HW without HW flow control, this value - should be set less than the UART RX FIFO size to avoid - overflow, assuming that U-Boot can't keep up with full-rate - traffic at the baud rate. - - Returns: - Nothing. - """ - - self.log = log - self.config = config - self.max_fifo_fill = max_fifo_fill - - self.logstream = self.log.get_stream('console', sys.stdout) - - # Array slice removes leading/trailing quotes - self.prompt = self.config.buildconfig['config_sys_prompt'][1:-1] - self.prompt_compiled = re.compile('^' + re.escape(self.prompt), re.MULTILINE) - self.p = None - self.disable_check_count = {pat[PAT_ID]: 0 for pat in bad_pattern_defs} - self.eval_bad_patterns() - - self.at_prompt = False - self.at_prompt_logevt = None - self.lab_mode = False - - def get_spawn(self): - # This is not called, ssubclass must define this. - # Return a value to avoid: - # u_boot_console_base.py:348:12: E1128: Assigning result of a function - # call, where the function returns None (assignment-from-none) - return u_boot_spawn.Spawn([]) - - - def eval_bad_patterns(self): - self.bad_patterns = [pat[PAT_RE] for pat in bad_pattern_defs \ - if self.disable_check_count[pat[PAT_ID]] == 0] - self.bad_pattern_ids = [pat[PAT_ID] for pat in bad_pattern_defs \ - if self.disable_check_count[pat[PAT_ID]] == 0] - - def close(self): - """Terminate the connection to the U-Boot console. - - This function is only useful once all interaction with U-Boot is - complete. Once this function is called, data cannot be sent to or - received from U-Boot. - - Args: - None. - - Returns: - Nothing. - """ - - if self.p: - self.log.start_section('Stopping U-Boot') - close_type = self.p.close() - self.log.info(f'Close type: {close_type}') - self.log.end_section('Stopping U-Boot') - self.logstream.close() - - def set_lab_mode(self): - """Select lab mode - - This tells us that we will get a 'lab ready' message when the board is - ready for use. We don't need to look for signon messages. - """ - self.log.info(f'test.py: Lab mode is active') - self.p.timeout = TIMEOUT_PREPARE_MS - self.lab_mode = True - - def wait_for_boot_prompt(self, loop_num = 1): - """Wait for the boot up until command prompt. This is for internal use only. - """ - try: - self.log.info('Waiting for U-Boot to be ready') - bcfg = self.config.buildconfig - config_spl_serial = bcfg.get('config_spl_serial', 'n') == 'y' - env_spl_skipped = self.config.env.get('env__spl_skipped', False) - env_spl_banner_times = self.config.env.get('env__spl_banner_times', 1) - - while not self.lab_mode and loop_num > 0: - loop_num -= 1 - while config_spl_serial and not env_spl_skipped and env_spl_banner_times > 0: - m = self.p.expect([pattern_u_boot_spl_signon, - pattern_lab_mode] + self.bad_patterns) - if m == 1: - self.set_lab_mode() - break - elif m != 0: - raise BootFail('Bad pattern found on SPL console: ' + - self.bad_pattern_ids[m - 1]) - env_spl_banner_times -= 1 - - if not self.lab_mode: - m = self.p.expect([pattern_u_boot_main_signon, - pattern_lab_mode] + self.bad_patterns) - if m == 1: - self.set_lab_mode() - elif m != 0: - raise BootFail('Bad pattern found on console: ' + - self.bad_pattern_ids[m - 1]) - if not self.lab_mode: - self.u_boot_version_string = self.p.after - while True: - m = self.p.expect([self.prompt_compiled, pattern_ready_prompt, - pattern_stop_autoboot_prompt] + self.bad_patterns) - if m == 0: - self.log.info(f'Found ready prompt {m}') - break - elif m == 1: - m = pattern_ready_prompt.search(self.p.after) - self.u_boot_version_string = m.group(2) - self.log.info(f'Lab: Board is ready') - self.p.timeout = TIMEOUT_MS - break - if m == 2: - self.log.info(f'Found autoboot prompt {m}') - self.p.send(' ') - continue - if not self.lab_mode: - raise BootFail('Missing prompt / ready message on console: ' + - self.bad_pattern_ids[m - 3]) - self.log.info(f'U-Boot is ready') - - finally: - self.log.timestamp() - - def run_command(self, cmd, wait_for_echo=True, send_nl=True, - wait_for_prompt=True, wait_for_reboot=False): - """Execute a command via the U-Boot console. - - The command is always sent to U-Boot. - - U-Boot echoes any command back to its output, and this function - typically waits for that to occur. The wait can be disabled by setting - wait_for_echo=False, which is useful e.g. when sending CTRL-C to - interrupt a long-running command such as "ums". - - Command execution is typically triggered by sending a newline - character. This can be disabled by setting send_nl=False, which is - also useful when sending CTRL-C. - - This function typically waits for the command to finish executing, and - returns the console output that it generated. This can be disabled by - setting wait_for_prompt=False, which is useful when invoking a long- - running command such as "ums". - - Args: - cmd: The command to send. - wait_for_echo: Boolean indicating whether to wait for U-Boot to - echo the command text back to its output. - send_nl: Boolean indicating whether to send a newline character - after the command string. - wait_for_prompt: Boolean indicating whether to wait for the - command prompt to be sent by U-Boot. This typically occurs - immediately after the command has been executed. - wait_for_reboot: Boolean indication whether to wait for the - reboot U-Boot. If this sets True, wait_for_prompt must also - be True. - - Returns: - If wait_for_prompt == False: - Nothing. - Else: - The output from U-Boot during command execution. In other - words, the text U-Boot emitted between the point it echod the - command string and emitted the subsequent command prompts. - """ - - if self.at_prompt and \ - self.at_prompt_logevt != self.logstream.logfile.cur_evt: - self.logstream.write(self.prompt, implicit=True) - - try: - self.at_prompt = False - if not self.p: - raise BootFail( - f"Lab failure: Connection lost when sending command '{cmd}'") - - if send_nl: - cmd += '\n' - rem = cmd # Remaining to be sent - with self.temporary_timeout(TIMEOUT_CMD_MS): - while rem: - # Limit max outstanding data, so UART FIFOs don't overflow - chunk = rem[:self.max_fifo_fill] - rem = rem[self.max_fifo_fill:] - self.p.send(chunk) - if not wait_for_echo: - continue - chunk = re.escape(chunk) - chunk = chunk.replace('\\\n', '[\r\n]') - m = self.p.expect([chunk] + self.bad_patterns) - if m != 0: - self.at_prompt = False - raise BootFail(f"Failed to get echo on console (cmd '{cmd}':rem '{rem}'): " + - self.bad_pattern_ids[m - 1]) - if not wait_for_prompt: - return - if wait_for_reboot: - self.wait_for_boot_prompt() - else: - m = self.p.expect([self.prompt_compiled] + self.bad_patterns) - if m != 0: - self.at_prompt = False - raise BootFail('Missing prompt on console: ' + - self.bad_pattern_ids[m - 1]) - self.at_prompt = True - self.at_prompt_logevt = self.logstream.logfile.cur_evt - # Only strip \r\n; space/TAB might be significant if testing - # indentation. - return self.p.before.strip('\r\n') - except Timeout as exc: - handle_exception(self.config, self, self.log, exc, - f"Lab failure: Timeout executing '{cmd}'", True) - raise - except BootFail as exc: - handle_exception(self.config, self, self.log, exc, - f"'Boot fail '{cmd}'", - True, self.get_spawn_output()) - raise - finally: - self.log.timestamp() - - def run_command_list(self, cmds): - """Run a list of commands. - - This is a helper function to call run_command() with default arguments - for each command in a list. - - Args: - cmd: List of commands (each a string). - Returns: - A list of output strings from each command, one element for each - command. - """ - output = [] - for cmd in cmds: - output.append(self.run_command(cmd)) - return output - - def ctrlc(self): - """Send a CTRL-C character to U-Boot. - - This is useful in order to stop execution of long-running synchronous - commands such as "ums". - - Args: - None. - - Returns: - Nothing. - """ - - self.log.action('Sending Ctrl-C') - self.run_command(chr(3), wait_for_echo=False, send_nl=False) - - def wait_for(self, text): - """Wait for a pattern to be emitted by U-Boot. - - This is useful when a long-running command such as "dfu" is executing, - and it periodically emits some text that should show up at a specific - location in the log file. - - Args: - text: The text to wait for; either a string (containing raw text, - not a regular expression) or an re object. - - Returns: - Nothing. - """ - - if type(text) == type(''): - text = re.escape(text) - m = self.p.expect([text] + self.bad_patterns) - if m != 0: - raise Unexpected( - "Unexpected pattern found on console (exp '{text}': " + - self.bad_pattern_ids[m - 1]) - - def drain_console(self): - """Read from and log the U-Boot console for a short time. - - U-Boot's console output is only logged when the test code actively - waits for U-Boot to emit specific data. There are cases where tests - can fail without doing this. For example, if a test asks U-Boot to - enable USB device mode, then polls until a host-side device node - exists. In such a case, it is useful to log U-Boot's console output - in case U-Boot printed clues as to why the host-side even did not - occur. This function will do that. - - Args: - None. - - Returns: - Nothing. - """ - - # If we are already not connected to U-Boot, there's nothing to drain. - # This should only happen when a previous call to run_command() or - # wait_for() failed (and hence the output has already been logged), or - # the system is shutting down. - if not self.p: - return - - orig_timeout = self.p.timeout - try: - # Drain the log for a relatively short time. - self.p.timeout = 1000 - # Wait for something U-Boot will likely never send. This will - # cause the console output to be read and logged. - self.p.expect(['This should never match U-Boot output']) - except: - # We expect a timeout, since U-Boot won't print what we waited - # for. Squash it when it happens. - # - # Squash any other exception too. This function is only used to - # drain (and log) the U-Boot console output after a failed test. - # The U-Boot process will be restarted, or target board reset, once - # this function returns. So, we don't care about detecting any - # additional errors, so they're squashed so that the rest of the - # post-test-failure cleanup code can continue operation, and - # correctly terminate any log sections, etc. - pass - finally: - self.p.timeout = orig_timeout - - def ensure_spawned(self, expect_reset=False): - """Ensure a connection to a correctly running U-Boot instance. - - This may require spawning a new Sandbox process or resetting target - hardware, as defined by the implementation sub-class. - - This is an internal function and should not be called directly. - - Args: - expect_reset: Boolean indication whether this boot is expected - to be reset while the 1st boot process after main boot before - prompt. False by default. - - Returns: - Nothing. - """ - - if self.p: - # Reset the console timeout value as some tests may change - # its default value during the execution - if not self.config.gdbserver: - self.p.timeout = TIMEOUT_MS - return - try: - self.log.start_section('Starting U-Boot') - self.at_prompt = False - self.p = self.get_spawn() - # Real targets can take a long time to scroll large amounts of - # text if LCD is enabled. This value may need tweaking in the - # future, possibly per-test to be optimal. This works for 'help' - # on board 'seaboard'. - if not self.config.gdbserver: - self.p.timeout = TIMEOUT_MS - self.p.logfile_read = self.logstream - if self.config.use_running_system: - # Send an empty command to set up the 'expect' logic. This has - # the side effect of ensuring that there was no partial command - # line entered - self.run_command(' ') - else: - if expect_reset: - loop_num = 2 - else: - loop_num = 1 - self.wait_for_boot_prompt(loop_num = loop_num) - self.at_prompt = True - self.at_prompt_logevt = self.logstream.logfile.cur_evt - except Exception as ex: - self.log.error(str(ex)) - self.cleanup_spawn() - raise - finally: - self.log.timestamp() - self.log.end_section('Starting U-Boot') - - def cleanup_spawn(self): - """Shut down all interaction with the U-Boot instance. - - This is used when an error is detected prior to re-establishing a - connection with a fresh U-Boot instance. - - This is an internal function and should not be called directly. - - Args: - None. - - Returns: - Nothing. - """ - - try: - if self.p: - self.p.close() - except: - pass - self.p = None - - def restart_uboot(self, expect_reset=False): - """Shut down and restart U-Boot.""" - self.cleanup_spawn() - self.ensure_spawned(expect_reset) - - def get_spawn_output(self): - """Return the start-up output from U-Boot - - Returns: - The output produced by ensure_spawed(), as a string. - """ - if self.p: - return self.p.get_expect_output() - return None - - def validate_version_string_in_text(self, text): - """Assert that a command's output includes the U-Boot signon message. - - This is primarily useful for validating the "version" command without - duplicating the signon text regex in a test function. - - Args: - text: The command output text to check. - - Returns: - Nothing. An exception is raised if the validation fails. - """ - - assert(self.u_boot_version_string in text) - - def disable_check(self, check_type): - """Temporarily disable an error check of U-Boot's output. - - Create a new context manager (for use with the "with" statement) which - temporarily disables a particular console output error check. - - Args: - check_type: The type of error-check to disable. Valid values may - be found in self.disable_check_count above. - - Returns: - A context manager object. - """ - - return ConsoleDisableCheck(self, check_type) - - def enable_check(self, check_type, check_pattern): - """Temporarily enable an error check of U-Boot's output. - - Create a new context manager (for use with the "with" statement) which - temporarily enables a particular console output error check. The - arguments form a new element of bad_pattern_defs defined above. - - Args: - check_type: The type of error-check or bad pattern to enable. - check_pattern: The regexes for text error pattern or bad pattern - to be checked. - - Returns: - A context manager object. - """ - - return ConsoleEnableCheck(self, check_type, check_pattern) - - def temporary_timeout(self, timeout): - """Temporarily set up different timeout for commands. - - Create a new context manager (for use with the "with" statement) which - temporarily change timeout. - - Args: - timeout: Time in milliseconds. - - Returns: - A context manager object. - """ - - return ConsoleSetupTimeout(self, timeout) |