Revision 6668ff3716086d3f8efead0f5db2d8d2864c3563 authored by Robert Ma on 21 March 2018, 17:35:46 UTC, committed by Robert Ma on 21 March 2018, 17:35:46 UTC
1. Check the HTTP port of wptserve instead of HTTPS to avoid the unnecessary complexities of setting up SSL context (which may fail in some environments). 2. Use exponential backoff when waiting for wptserve and specify a maximum retry to avoid indefinite hang. 3. Use `terminate` instead of `kill` to give wptserve a chance to clean up, which is especially useful when running locally.
1 parent dbb38a6
generate.py
# Copyright 2016 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
#
# TODO(509038): Delete the file in LayoutTests/bluetooth after all the script
# tests have been migrated to this directory.
"""Generator script for Web Bluetooth LayoutTests.
For each script-tests/X.js creates the following test files depending on the
contents of X.js
- getPrimaryService/X.html
- getPrimaryServices/X.html
- getPrimaryServices/X-with-uuid.html
script-tests/X.js files should contain "CALLS([variation1 | variation2 | ...])"
tokens that indicate what files to generate. Each variation in CALLS([...])
should corresponds to a js function call and its arguments. Additionally a
variation can end in [UUID] to indicate that the generated file's name should
have the -with-uuid suffix.
The PREVIOUS_CALL token will be replaced with the function that replaced CALLS.
The FUNCTION_NAME token will be replaced with the name of the function that
replaced CALLS.
For example, for the following template file:
// script-tests/example.js
promise_test(() => {
return navigator.bluetooth.requestDevice(...)
.then(device => device.gatt.CALLS([
getPrimaryService('heart_rate')|
getPrimaryServices('heart_rate')[UUID]]))
.then(device => device.gatt.PREVIOUS_CALL);
}, 'example test for FUNCTION_NAME');
this script will generate:
// getPrimaryService/example.html
promise_test(() => {
return navigator.bluetooth.requestDevice(...)
.then(device => device.gatt.getPrimaryService('heart_rate'))
.then(device => device.gatt.getPrimaryService('heart_rate'));
}, 'example test for getPrimaryService');
// getPrimaryServices/example-with-uuid.html
promise_test(() => {
return navigator.bluetooth.requestDevice(...)
.then(device => device.gatt.getPrimaryServices('heart_rate'))
.then(device => device.gatt.getPrimaryServices('heart_rate'));
}, 'example test for getPrimaryServices');
Run
$ python //third_party/WebKit/LayoutTests/bluetooth/generate.py
and commit the generated files.
"""
import fnmatch
import os
import re
import sys
import logging
TEMPLATES_DIR = 'script-tests'
class GeneratedTest:
def __init__(self, data, path, template):
self.data = data
self.path = path
self.template = template
def GetGeneratedTests():
"""Yields a GeneratedTest for each call in templates in script-tests."""
bluetooth_tests_dir = os.path.dirname(os.path.realpath(__file__))
# Read Base Test Template.
base_template_file_handle = open(
os.path.join(
bluetooth_tests_dir,
TEMPLATES_DIR,
'base_test_html.template'
), 'r')
base_template_file_data = base_template_file_handle.read().decode('utf-8')
base_template_file_handle.close()
# Get Templates.
template_path = os.path.join(bluetooth_tests_dir, TEMPLATES_DIR)
available_templates = []
for root, _, files in os.walk(template_path):
for template in files:
if template.endswith('.js'):
available_templates.append(os.path.join(root, template))
# Generate Test Files
for template in available_templates:
# Read template
template_file_handle = open(template, 'r')
template_file_data = template_file_handle.read().decode('utf-8')
template_file_handle.close()
template_name = os.path.splitext(os.path.basename(template))[0]
# Find function names in multiline pattern: CALLS( [ function_name,function_name2[UUID] ])
result = re.search(
r'CALLS\(' + # CALLS(
r'[^\[]*' + # Any characters not [, allowing for new lines.
r'\[' + # [
r'(.*?)' + # group matching: function_name(), function_name2[UUID]
r'\]\)', # adjacent closing characters: ])
template_file_data, re.MULTILINE | re.DOTALL)
if result is None:
raise Exception('Template must contain \'CALLS\' tokens')
new_test_file_data = base_template_file_data.replace('TEST',
template_file_data)
# Replace CALLS([...]) with CALLS so that we don't have to replace the
# CALLS([...]) for every new test file.
new_test_file_data = new_test_file_data.replace(result.group(), 'CALLS')
# Replace 'PREVIOUS_CALL' with 'CALLS' so that we can replace it while
# replacing CALLS.
new_test_file_data = new_test_file_data.replace('PREVIOUS_CALL', 'CALLS')
for call in result.group(1).split('|'):
# Parse call
call = call.strip()
function_name, args, uuid_suffix = re.search(r'(.*?)\((.*)\)(\[UUID\])?', call).groups()
# Replace template tokens
call_test_file_data = new_test_file_data
call_test_file_data = call_test_file_data.replace('CALLS', '{}({})'.format(function_name, args))
call_test_file_data = call_test_file_data.replace('FUNCTION_NAME', function_name)
# Get test file name
group_dir = os.path.basename(os.path.abspath(os.path.join(template, os.pardir)))
call_test_file_name = 'gen-{}{}.https.html'.format(template_name, '-with-uuid' if uuid_suffix else '')
call_test_file_path = os.path.join(bluetooth_tests_dir, group_dir, function_name, call_test_file_name)
yield GeneratedTest(call_test_file_data, call_test_file_path, template)
def main():
logging.basicConfig(level=logging.INFO)
previous_generated_files = set()
current_path = os.path.dirname(os.path.realpath(__file__))
for root, _, filenames in os.walk(current_path):
for filename in fnmatch.filter(filenames, 'gen-*.https.html'):
previous_generated_files.add(os.path.join(root, filename))
generated_files = set()
for generated_test in GetGeneratedTests():
prev_len = len(generated_files)
generated_files.add(generated_test.path)
if prev_len == len(generated_files):
logging.info('Generated the same test twice for template:\n%s',
generated_test.template)
# Create or open test file
directory = os.path.dirname(generated_test.path)
if not os.path.exists(directory):
os.makedirs(directory)
test_file_handle = open(generated_test.path, 'wb')
# Write contents
test_file_handle.write(generated_test.data.encode('utf-8'))
test_file_handle.close()
new_generated_files = generated_files - previous_generated_files
if len(new_generated_files) != 0:
logging.info('Newly generated tests:')
for generated_file in new_generated_files:
logging.info(generated_file)
obsolete_files = previous_generated_files - generated_files
if len(obsolete_files) != 0:
logging.warning('The following files might be obsolete:')
for generated_file in obsolete_files:
logging.warning(generated_file)
if __name__ == '__main__':
sys.exit(main())
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