crosvm/tools/impl/test_runner.py
Dennis Kempin df7d744fec test_runner: Parallelize building of common/ crates
Each of these is a separate workspace and can be built in
parallel.

BUG=b:195126527
TEST=./tools/run_tests

Change-Id: I9ad61b5d5d83903fda36c948ba470bba8f608d46
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/3248128
Commit-Queue: Dennis Kempin <denniskempin@google.com>
Tested-by: Dennis Kempin <denniskempin@google.com>
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
2021-10-27 19:53:07 +00:00

420 lines
12 KiB
Python
Executable file

#!/usr/bin/env python3
# Copyright 2021 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import argparse
import functools
import json
import os
import random
import subprocess
import sys
from multiprocessing import Pool
from pathlib import Path
from typing import Dict, Iterable, List, NamedTuple, Set
import typing
import test_target
from test_target import TestTarget
import testvm
from test_config import CRATE_OPTIONS, TestOption
USAGE = """\
Runs tests for crosvm locally, in a vm or on a remote device.
To build and run all tests locally:
$ ./tools/run_tests --target=host
To cross-compile tests for aarch64 and run them on a built-in VM:
$ ./tools/run_tests --target=vm:aarch64
The VM will be automatically set up and booted. It will remain running between
test runs and can be managed with `./tools/aarch64vm`.
Tests can also be run on a remote device via SSH. However it is your
responsiblity that runtime dependencies of crosvm are provided.
$ ./tools/run_tests --target=ssh:hostname
The default test target can be managed with `./tools/set_test_target`
To see full build and test output, add the `-v` or `--verbose` flag.
"""
Arch = test_target.Arch
# Print debug info. Overriden by -v
VERBOSE = False
# Kill a test after 60 seconds to prevent frozen tests from running too long.
TEST_TIMEOUT_SECS = 60
# Number of parallel processes for executing tests.
PARALLELISM = 4
CROSVM_ROOT = Path(__file__).parent.parent.parent.resolve()
COMMON_ROOT = CROSVM_ROOT / "common"
class ExecutableResults(object):
"""Container for results of a test executable."""
def __init__(self, name: str, success: bool, test_log: str):
self.name = name
self.success = success
self.test_log = test_log
class Executable(NamedTuple):
"""Container for info about an executable generated by cargo build/test."""
binary_path: Path
crate_name: str
cargo_target: str
is_test: bool
is_fresh: bool
@property
def name(self):
return f"{self.crate_name}:{self.cargo_target}"
def should_build_crate(crate: str, target_arch: Arch):
options = CRATE_OPTIONS.get(crate, [])
if TestOption.DO_NOT_BUILD in options:
return False
if TestOption.BUILD_ARM_ONLY in options:
return target_arch == "aarch64" or target_arch == "armhf"
if TestOption.BUILD_X86_ONLY in options:
return target_arch == "x86_64"
return True
def should_run_executable(executable: Executable, target_arch: Arch):
options = CRATE_OPTIONS.get(executable.crate_name, [])
if TestOption.DO_NOT_RUN in options:
return False
if TestOption.RUN_ARM_ONLY in options:
return target_arch == "aarch64" or target_arch == "armhf"
if TestOption.RUN_X86_ONLY in options:
return target_arch == "x86_64"
return True
def list_main_crates():
yield "crosvm"
for path in CROSVM_ROOT.glob("*/Cargo.toml"):
yield path.parent.name
def list_common_crates():
for path in COMMON_ROOT.glob("*/Cargo.toml"):
yield path.parent.name
def cargo(
cargo_command: str, cwd: Path, flags: list[str], env: dict[str, str]
) -> Iterable[Executable]:
"""
Executes a cargo command and returns the list of test binaries generated.
The build log will be hidden by default and only printed if the build
fails. In VERBOSE mode the output will be streamed directly.
Note: Exits the program if the build fails.
"""
cmd = [
"cargo",
cargo_command,
"--message-format=json-diagnostic-rendered-ansi",
*flags,
]
process = subprocess.Popen(
cmd,
cwd=cwd,
stdout=subprocess.PIPE,
stderr=subprocess.STDOUT,
text=True,
env=env,
)
messages: List[str] = []
# Read messages as cargo is running.
assert process.stdout
for line in iter(process.stdout.readline, ""):
# any non-json line is a message to print
if not line.startswith("{"):
if VERBOSE:
print(line.rstrip())
messages.append(line.rstrip())
continue
json_line = json.loads(line)
# 'message' type lines will be printed
if json_line.get("message"):
message = json_line.get("message").get("rendered")
if VERBOSE:
print(message)
messages.append(message)
# Collect info about test executables produced
elif json_line.get("executable"):
yield Executable(
Path(json_line.get("executable")),
crate_name=json_line.get("package_id", "").split(" ")[0],
cargo_target=json_line.get("target").get("name"),
is_test=json_line.get("profile", {}).get("test", False),
is_fresh=json_line.get("fresh", False),
)
if process.wait() != 0:
if not VERBOSE:
for message in messages:
print(message)
sys.exit(-1)
def cargo_build_executables(
crates: List[str] = [],
cwd: Path = Path("."),
features: Set[str] = set(),
env: Dict[str, str] = {},
) -> Iterable[Executable]:
"""Build all test binaries for the given list of crates."""
flags: list[str] = []
if features:
flags += [
"--no-default-features",
"--features",
",".join(features),
]
for crate in crates:
flags += ["-p", crate]
# Run build first, to make sure compiler errors of building non-test
# binaries are caught.
yield from cargo("build", cwd, flags, env)
# Build all tests and return the collected executables
yield from cargo("test", cwd, ["--no-run", *flags], env)
def build_common_crate(build_env: dict[str, str], crate_name: str):
print(f"Building tests for: common/{crate_name}")
return list(
cargo_build_executables(
[],
env=build_env,
cwd=COMMON_ROOT / crate_name,
)
)
def build_all_binaries(target: TestTarget, target_arch: Arch):
"""Discover all crates and build them."""
build_env = os.environ.copy()
build_env.update(test_target.get_cargo_env(target, target_arch))
main_crates = [
crate
for crate in list_main_crates()
if should_build_crate(crate, target_arch)
]
print("Building tests for:", ", ".join(main_crates))
yield from cargo_build_executables(
main_crates, env=build_env, features=set(["all-linux"])
)
common_crates = [
crate
for crate in list_common_crates()
if should_build_crate(crate, target_arch)
]
with Pool(PARALLELISM) as pool:
for executables in pool.imap(
functools.partial(build_common_crate, build_env), common_crates
):
yield from executables
def execute_test(target: TestTarget, executable: Executable):
"""
Executes a single test on the given test targed
Note: This function is run in a multiprocessing.Pool.
Test output is hidden unless the test fails or VERBOSE mode is enabled.
"""
options = CRATE_OPTIONS.get(executable.crate_name, [])
args: list[str] = []
if TestOption.SINGLE_THREADED in options:
args += ["--test-threads=1"]
if VERBOSE:
print(f"Running test {executable.name}...")
try:
# Pipe stdout/err to be printed in the main process if needed.
test_process = test_target.exec_file_on_target(
target,
executable.binary_path,
args=args,
timeout=TEST_TIMEOUT_SECS,
stdout=subprocess.PIPE,
stderr=subprocess.STDOUT,
)
return ExecutableResults(
executable.name,
test_process.returncode == 0,
test_process.stdout,
)
except subprocess.TimeoutExpired as e:
# Append a note about the timeout to the stdout of the process.
msg = f"\n\nProcess timed out after {e.timeout}s\n"
return ExecutableResults(
executable.name,
False,
e.stdout.decode("utf-8") + msg,
)
def execute_all(
executables: list[Executable],
target: test_target.TestTarget,
arch: Arch,
repeat: int,
):
"""Executes all tests in the `executables` list in parallel."""
executables = [e for e in executables if should_run_executable(e, arch)]
if repeat > 1:
executables = executables * repeat
random.shuffle(executables)
sys.stdout.write(f"Running {len(executables)} test binaries on {target}")
sys.stdout.flush()
with Pool(PARALLELISM) as pool:
for result in pool.imap(
functools.partial(execute_test, target), executables
):
if not result.success or VERBOSE:
msg = "passed" if result.success else "failed"
print()
print("--------------------------------")
print("-", result.name, msg)
print("--------------------------------")
print(result.test_log)
else:
sys.stdout.write(".")
sys.stdout.flush()
yield result
print()
def find_crosvm_binary(executables: list[Executable]):
for executable in executables:
if not executable.is_test and executable.cargo_target == "crosvm":
return executable
raise Exception("Cannot find crosvm executable")
def main():
parser = argparse.ArgumentParser(usage=USAGE)
parser.add_argument(
"--verbose",
"-v",
action="store_true",
default=False,
help="Print all test output.",
)
parser.add_argument(
"--target",
help="Execute tests on the selected target. See ./tools/set_test_target",
)
parser.add_argument(
"--arch",
choices=typing.get_args(Arch),
help="Target architecture to build for.",
)
parser.add_argument(
"--build-only",
action="store_true",
)
parser.add_argument(
"--repeat",
type=int,
default=1,
help="Repeat each test N times to check for flakes.",
)
args = parser.parse_args()
global VERBOSE
VERBOSE = args.verbose # type: ignore
os.environ["RUST_BACKTRACE"] = "1"
target = (
test_target.TestTarget(args.target)
if args.target
else test_target.TestTarget.default()
)
print("Test target:", target)
arch = args.arch
if not arch:
arch = test_target.get_target_arch(target)
print("Building for architecture:", arch)
# Start booting VM while we build
if target.vm:
testvm.build_if_needed(target.vm)
testvm.up(target.vm)
executables = list(build_all_binaries(target, arch))
if args.build_only:
print("Not running tests as requested.")
sys.exit(0)
# Upload dependencies plus the main crosvm binary for integration tests
test_target.prepare_target(
target, extra_files=[find_crosvm_binary(executables).binary_path]
)
# Execute all test binaries
test_executables = [e for e in executables if e.is_test]
all_results = list(
execute_all(test_executables, target, arch, repeat=args.repeat)
)
failed = [r for r in all_results if not r.success]
if len(failed) == 0:
print("All tests passed.")
sys.exit(0)
else:
print(f"{len(failed)} of {len(all_results)} tests failed:")
for result in failed:
print(f" {result.name}")
sys.exit(-1)
def verify_crate_options():
"""Verify that CRATE_OPTIONS are for existing crates."""
all_crates = list(list_main_crates()) + list(list_common_crates())
for crate, _ in CRATE_OPTIONS.items():
if crate not in all_crates:
raise Exception("No such crate: %s" % crate)
if __name__ == "__main__":
try:
verify_crate_options()
main()
except subprocess.CalledProcessError as e:
print("Command failed:", e.cmd)
print(e.stdout)
print(e.stderr)
sys.exit(-1)