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#!/usr/bin/env python3
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
# Firebase Test Lab (Flank) test runner script for Taskcluster
# This script is used to run UI tests on Firebase Test Lab using Flank
# It requires a service account key file to authenticate with Firebase Test Lab
# It also requires the `gcloud` command line tool to be installed and configured
# Lastly it requires the `flank.jar` file to be present in the `test-tools` directory set up in the task definition
# The service account key file is stored in the `secrets` section of the task definition
# Flank: https://flank.github.io/flank/
import argparse
import logging
import os
import subprocess
import sys
from enum import Enum
from pathlib import Path
from typing import List, Optional, Union
# Worker paths and binaries
class Worker(Enum):
JAVA_BIN = "/usr/bin/java"
FLANK_BIN = "/builds/worker/test-tools/flank.jar"
RESULTS_DIR = "/builds/worker/artifacts/results"
ARTIFACTS_DIR = "/builds/worker/artifacts"
ANDROID_TEST = "./automation/taskcluster/androidTest"
def setup_logging():
"""Configure logging for the script."""
log_format = "%(message)s"
logging.basicConfig(level=logging.INFO, format=log_format)
def run_command(
command: List[Union[str, bytes]], log_path: Optional[str] = None
) -> int:
"""Execute a command, log its output, and check for errors.
Args:
command: The command to execute
log_path: The path to a log file to write the command output to
Returns:
int: The exit code of the command
"""
with subprocess.Popen(
command, stdout=subprocess.PIPE, stderr=subprocess.STDOUT, text=True
) as process:
if log_path:
with open(log_path, "a") as log_file:
for line in process.stdout:
sys.stdout.write(line)
log_file.write(line)
else:
for line in process.stdout:
sys.stdout.write(line)
process.wait()
sys.stdout.flush()
if process.returncode != 0:
error_message = f"Command {' '.join(command)} failed with exit code {process.returncode}"
logging.error(error_message)
return process.returncode
def setup_environment():
"""Configure Google Cloud project and authenticate with the service account."""
project_id = os.getenv("GOOGLE_PROJECT")
credentials_file = os.getenv("GOOGLE_APPLICATION_CREDENTIALS")
if not project_id or not credentials_file:
logging.error(
"Error: GOOGLE_PROJECT and GOOGLE_APPLICATION_CREDENTIALS environment variables must be set."
)
sys.exit(1)
run_command(["gcloud", "config", "set", "project", project_id])
run_command(
["gcloud", "auth", "activate-service-account", "--key-file", credentials_file]
)
def execute_tests(
flank_config: str, apk_app: Path, apk_test: Optional[Path] = None
) -> int:
"""Run UI tests on Firebase Test Lab using Flank.
Args:
flank_config: The YML configuration for Flank to use e.g, automation/taskcluster/androidTest/flank-<config>.yml
apk_app: Absolute path to a Android APK application package (optional) for robo test or instrumentation test
apk_test: Absolute path to a Android APK androidTest package
Returns:
int: The exit code of the command
"""
run_command([Worker.JAVA_BIN.value, "-jar", Worker.FLANK_BIN.value, "--version"])
flank_command = [
Worker.JAVA_BIN.value,
"-jar",
Worker.FLANK_BIN.value,
"android",
"run",
"--config",
f"{ANDROID_TEST}/flank-{flank_config}.yml",
"--app",
str(apk_app),
"--local-result-dir",
Worker.RESULTS_DIR.value,
"--project",
os.environ.get("GOOGLE_PROJECT"),
"--client-details",
f'matrixLabel={os.environ.get("PULL_REQUEST_NUMBER", "None")}',
]
# Add androidTest APK if provided (optional) as robo test or instrumentation test
if apk_test:
flank_command.extend(["--test", str(apk_test)])
exit_code = run_command(flank_command, "flank.log")
if exit_code == 0:
logging.info("All UI test(s) have passed!")
return exit_code
def process_results(flank_config: str, test_type: str = "instrumentation") -> None:
"""Process and parse test results.
Args:
flank_config: The YML configuration for Flank to use e.g, automation/taskcluster/androidTest/flank-<config>.yml
"""
# Ensure directories exist and scripts are executable
github_dir = os.path.join(Worker.ARTIFACTS_DIR.value, "github")
os.makedirs(github_dir, exist_ok=True)
parse_ui_test_script = os.path.join(ANDROID_TEST, "parse-ui-test.py")
parse_ui_test_fromfile_script = os.path.join(
ANDROID_TEST, "parse-ui-test-fromfile.py"
)
copy_robo_crash_artifacts_script = os.path.join(
ANDROID_TEST, "copy-robo-crash-artifacts.py"
)
os.chmod(parse_ui_test_script, 0o755)
os.chmod(parse_ui_test_fromfile_script, 0o755)
os.chmod(copy_robo_crash_artifacts_script, 0o755)
# Run parsing scripts and check for errors
# Process the results differently based on the test type: robo or instrumentation
exit_code = 0
if test_type == "instrumentation":
exit_code = run_command(
[parse_ui_test_fromfile_script, "--results", Worker.RESULTS_DIR.value],
"flank.log",
)
# If the test type is robo, run a script that copies the crash artifacts from Cloud Storage over (if there are any from failed devices)
if test_type == "robo":
exit_code = run_command([copy_robo_crash_artifacts_script])
command = [
parse_ui_test_script,
"--exit-code",
str(0),
"--log",
"flank.log",
"--results",
Worker.RESULTS_DIR.value,
"--output-md",
os.path.join(github_dir, "customCheckRunText.md"),
"--device-type",
flank_config,
]
if exit_code == 0:
# parse_ui_test_script error messages are pretty generic; only
# report them if errors have not already been reported
command.append("--report-treeherder-failures")
run_command(
command,
"flank.log",
)
def main():
"""Parse command line arguments and execute the test runner."""
parser = argparse.ArgumentParser(
description="Run UI tests on Firebase Test Lab using Flank as a test runner"
)
parser.add_argument(
"flank_config",
help="The YML configuration for Flank to use e.g, automation/taskcluster/androidTest/flank-<config>.yml",
)
parser.add_argument(
"apk_app", help="Absolute path to a Android APK application package"
)
parser.add_argument(
"--apk_test",
help="Absolute path to a Android APK androidTest package",
default=None,
)
args = parser.parse_args()
setup_environment()
# Only resolve apk_test if it is provided
apk_test_path = Path(args.apk_test).resolve() if args.apk_test else None
exit_code = execute_tests(
flank_config=args.flank_config,
apk_app=Path(args.apk_app).resolve(),
apk_test=apk_test_path,
)
# Determine the instrumentation type to process the results differently
instrumentation_type = "instrumentation" if args.apk_test else "robo"
process_results(flank_config=args.flank_config, test_type=instrumentation_type)
sys.exit(exit_code)
if __name__ == "__main__":
setup_logging()
main()
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