blob: b25a431cf28a0b3cb4828f4720c8acdaac767264 [file] [log] [blame]
#!/usr/bin/env python3
# vim: set syntax=python ts=4 :
# Copyright (c) 2020 Intel Corporation
# SPDX-License-Identifier: Apache-2.0
"""Zephyr Test Runner (twister)
Also check the "User and Developer Guides" at
This script scans for the set of unit test applications in the git
repository and attempts to execute them. By default, it tries to
build each test case on one platform per architecture, using a precedence
list defined in an architecture configuration file, and if possible
run the tests in any available emulators or simulators on the system.
Test cases are detected by the presence of a 'testcase.yaml' or a sample.yaml
files in the application's project directory. This file may contain one or more
blocks, each identifying a test scenario. The title of the block is a name for
the test case, which only needs to be unique for the test cases specified in
that testsuite meta-data. The full canonical name for each test case is <path to
test case>/<block>.
Each test block in the testsuite meta data can define the following key/value
tags: <list of tags> (required)
A set of string tags for the testsuite. Usually pertains to
functional domains but can be anything. Command line invocations
of this script can filter the set of tests to run based on tag.
skip: <True|False> (default False)
skip testsuite unconditionally. This can be used for broken tests.
slow: <True|False> (default False)
Don't build or run this test case unless --enable-slow was passed
in on the command line. Intended for time-consuming test cases
that are only run under certain circumstances, like daily
extra_args: <list of extra arguments>
Extra cache entries to pass to CMake when building or running the
test case.
extra_configs: <list of extra configurations>
Extra configuration options to be merged with a master prj.conf
when building or running the test case.
build_only: <True|False> (default False)
If true, don't try to run the test even if the selected platform
supports it.
build_on_all: <True|False> (default False)
If true, attempt to build test on all available platforms.
depends_on: <list of features>
A board or platform can announce what features it supports, this option
will enable the test only those platforms that provide this feature.
min_ram: <integer>
minimum amount of RAM needed for this test to build and run. This is
compared with information provided by the board metadata.
min_flash: <integer>
minimum amount of ROM needed for this test to build and run. This is
compared with information provided by the board metadata.
modules: <list of modules>
Add list of modules needed for this sample to build and run.
timeout: <number of seconds>
Length of time to run test in emulator before automatically killing it.
Default to 60 seconds.
arch_allow: <list of arches, such as x86, arm, arc>
Set of architectures that this test case should only be run for.
arch_exclude: <list of arches, such as x86, arm, arc>
Set of architectures that this test case should not run on.
platform_allow: <list of platforms>
Set of platforms that this test case should only be run for.
platform_exclude: <list of platforms>
Set of platforms that this test case should not run on.
extra_sections: <list of extra binary sections>
When computing sizes, twister will report errors if it finds
extra, unexpected sections in the Zephyr binary unless they are named
here. They will not be included in the size calculation.
filter: <expression>
Filter whether the testsuite should be run by evaluating an expression
against an environment containing the following values:
{ ARCH : <architecture>,
PLATFORM : <platform>,
<all CONFIG_* key/value pairs in the test's generated defconfig>,
<all DT_* key/value pairs in the test's generated device tree file>,
<all CMake key/value pairs in the test's generated CMakeCache.txt file>,
*<env>: any environment variable available
The grammar for the expression language is as follows:
expression ::= expression "and" expression
| expression "or" expression
| "not" expression
| "(" expression ")"
| symbol "==" constant
| symbol "!=" constant
| symbol "<" number
| symbol ">" number
| symbol ">=" number
| symbol "<=" number
| symbol "in" list
| symbol ":" string
| symbol
list ::= "[" list_contents "]"
list_contents ::= constant
| list_contents "," constant
constant ::= number
| string
For the case where expression ::= symbol, it evaluates to true
if the symbol is defined to a non-empty string.
Operator precedence, starting from lowest to highest:
or (left associative)
and (left associative)
not (right associative)
all comparison operators (non-associative)
arch_allow, arch_exclude, platform_allow, platform_exclude
are all syntactic sugar for these expressions. For instance
arch_exclude = x86 arc
Is the same as:
filter = not ARCH in ["x86", "arc"]
The ':' operator compiles the string argument as a regular expression,
and then returns a true value only if the symbol's value in the environment
matches. For example, if CONFIG_SOC="stm32f107xc" then
filter = CONFIG_SOC : "stm.*"
Would match it.
The set of test cases that actually run depends on directives in the testsuite
files and options passed in on the command line. If there is any confusion,
running with -v or examining the test plan report (testplan.json)
can help show why particular test cases were skipped.
To load arguments from a file, write '+' before the file name, e.g.,
+file_name. File content must be one or more valid arguments separated by
line break instead of white spaces.
Most everyday users will run with no arguments.
import os
import sys
import logging
import time
import shutil
import colorama
from colorama import Fore
from pathlib import Path
# This file has been zephyr/scripts/twister for years,
# and that is not going to change anytime soon. Let the user
# run this script as ./scripts/twister without making them
ZEPHYR_BASE = str(Path(__file__).resolve().parents[1])
# Propagate this decision to child processes.
print(f'ZEPHYR_BASE unset, using "{ZEPHYR_BASE}"')
sys.path.insert(0, os.path.join(ZEPHYR_BASE, "scripts/pylib/twister/"))
from twisterlib.testplan import TestPlan
from twisterlib.environment import TwisterEnv, parse_arguments
from twisterlib.reports import Reporting
from twisterlib.hardwaremap import HardwareMap
from twisterlib.coverage import run_coverage
from twisterlib.runner import TwisterRunner
logger = logging.getLogger('twister')
def setup_logging(outdir, log_file, verbose, timestamps):
# create file handler which logs even debug messages
if log_file:
fh = logging.FileHandler(log_file)
fh = logging.FileHandler(os.path.join(outdir, "twister.log"))
# create console handler with a higher log level
ch = logging.StreamHandler()
if verbose > 1:
# create formatter and add it to the handlers
if timestamps:
formatter = logging.Formatter('%(asctime)s - %(levelname)s - %(message)s')
formatter = logging.Formatter('%(levelname)-7s - %(message)s')
formatter_file = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')
# add the handlers to logger
def init_color(colorama_strip):
def main():
start_time = time.time()
options = parse_arguments(sys.argv[1:])
# Configure color output
color_strip = False if options.force_color else None
previous_results = None
# Cleanup
if options.no_clean or options.only_failed or options.test_only:
if os.path.exists(options.outdir):
print("Keeping artifacts untouched")
elif options.last_metrics:
ls = os.path.join(options.outdir, "twister.json")
if os.path.exists(ls):
with open(ls, "r") as fp:
previous_results =
sys.exit(f"Can't compare metrics with non existing file {ls}")
elif os.path.exists(options.outdir):
if options.clobber_output:
print("Deleting output directory {}".format(options.outdir))
for i in range(1, 100):
new_out = options.outdir + ".{}".format(i)
if not os.path.exists(new_out):
print("Renaming output directory to {}".format(new_out))
shutil.move(options.outdir, new_out)
previous_results_file = None
os.makedirs(options.outdir, exist_ok=True)
if options.last_metrics and previous_results:
previous_results_file = os.path.join(options.outdir, "baseline.json")
with open(previous_results_file, "w") as fp:
VERBOSE = options.verbose
setup_logging(options.outdir, options.log_file, VERBOSE, options.timestamps)
env = TwisterEnv(options)
hwm = HardwareMap(env)
ret =
if ret == 0:
return 0
env.hwm = hwm
tplan = TestPlan(env)
except RuntimeError as e:
return 1
if == 0:
return 0
except RuntimeError as e:
return 1
if options.list_tests and options.platform:
return 0
if VERBOSE > 1:
# if we are using command line platform filter, no need to list every
# other platform as excluded, we know that already.
# Show only the discards that apply to the selected platforms on the
# command line
for i in tplan.instances.values():
if i.status == "filtered":
if options.platform and not in options.platform:
"{:<25} {:<50} {}SKIPPED{}: {}".format(,,
if options.report_excluded:
return 0
report = Reporting(tplan, env)
plan_file = os.path.join(options.outdir, "testplan.json")
if not os.path.exists(plan_file):
if options.save_tests:
return 0
if options.device_testing and not options.build_only:
print("\nDevice testing on:")
if options.dry_run:
duration = time.time() - start_time"Completed in %d seconds" % (duration))
return 0
if options.short_build_path:
runner = TwisterRunner(tplan.instances, tplan.testsuites, env)
runner.duts = hwm.duts
# figure out which report to use for size comparison
report_to_use = None
if options.compare_report:
report_to_use = options.compare_report
elif options.last_metrics:
report_to_use = previous_results_file
duration = time.time() - start_time
report.summary(runner.results, options.disable_unrecognized_section_test, duration)
if options.coverage:
if not options.build_only:
run_coverage(tplan, options)
else:"Skipping coverage report generation due to --build-only.")
if options.device_testing and not options.build_only:
)"Run completed")
if runner.results.failed or runner.results.error or (tplan.warnings and options.warnings_as_errors):
return 1
return 0
if __name__ == "__main__":
ret = 0
ret = main()
if ( != "nt") and os.isatty(1):
# (OS is not Windows) and (stdout is interactive)
os.system("stty sane")