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#!/usr/bin/env python3
"""Compare the authored and parser-free runners on real document operations."""
import argparse
import hashlib
import json
from pathlib import Path
import struct
import subprocess
import tempfile
HERE = Path(__file__).resolve().parent
def run(binary, store, program, *args):
command = [str(binary)]
if program is not None:
command += ['--program', str(program)]
command += ['--store', str(store), *map(str, args)]
return subprocess.run(command, capture_output=True, timeout=15)
def same_call(source, fixed, source_store, fixed_store, program, *args):
original = run(source, source_store, program, *args)
prepared = run(fixed, fixed_store, None, *args)
assert (original.returncode, original.stdout, original.stderr) == (
prepared.returncode, prepared.stdout, prepared.stderr), (
args, original, prepared)
return prepared
def check(build, selection_build, excerpt_build):
source = (build / 'pure-edit').resolve()
fixed = (build / 'pure-edit-fixed').resolve()
selected = (selection_build / 'pure-edit-fixed').resolve()
excerpt_fixed = (excerpt_build / 'pure-edit-fixed').resolve()
compiler = (build / 'pure-compile').resolve()
with tempfile.TemporaryDirectory(prefix='pure-fixed-program-') as name:
root = Path(name)
source_store, fixed_store = root / 'source', root / 'fixed'
editor = HERE / 'examples/editor.pure'
small = root / 'small'
small.write_bytes(b'alpha')
first = same_call(source, fixed, source_store, fixed_store, editor,
'edit', 'note', '0', '0', '0', small)
assert first.returncode == 0
assert same_call(source, fixed, source_store, fixed_store, editor,
'show', 'note').stdout == b'alpha'
small.write_bytes(b'XY')
assert same_call(source, fixed, source_store, fixed_store, editor,
'edit', 'note', '1', '2', '2', small).returncode == 0
assert same_call(source, fixed, source_store, fixed_store, editor,
'edit', 'note', '1', '0', '0', small).returncode == 3
assert same_call(source, fixed, source_store, fixed_store, editor,
'edit', 'note', '2', '500', '0', small).returncode != 0
assert same_call(source, fixed, source_store, fixed_store, editor,
'show', 'note').stdout == b'alXYa'
one_mib = root / 'one-mib'
one_mib.write_bytes(b'A' * 1_048_576)
assert same_call(source, fixed, source_store, fixed_store, editor,
'edit', 'large', '0', '0', '0', one_mib).returncode == 0
small.write_bytes(b'Z')
assert same_call(source, fixed, source_store, fixed_store, editor,
'edit', 'large', '1', '1048575', '1', small).returncode == 0
assert same_call(source, fixed, source_store, fixed_store, editor,
'show', 'large').stdout == b'A' * 1_048_575 + b'Z'
selection = HERE / 'examples/selection.pure'
input_file = root / 'selection-input'
input_file.write_bytes(struct.pack('<II', 2, 3) + b'abcdef')
selected_store = root / 'selected'
authored_store = root / 'authored-selected'
assert same_call(source, selected, authored_store, selected_store,
selection, 'apply', 'value', '0', input_file).returncode == 0
assert same_call(source, selected, authored_store, selected_store,
selection, 'show', 'value').stdout == b'cde'
excerpt = HERE / 'examples/excerpt.pure'
excerpt_input = root / 'excerpt-input'
excerpt_input.write_bytes(bytes(range(79)))
excerpt_source_store, excerpt_fixed_store = root / 'excerpt-source', root / 'excerpt-fixed'
assert same_call(source, excerpt_fixed, excerpt_source_store,
excerpt_fixed_store, excerpt,
'apply', 'sample', '0', excerpt_input).returncode == 0
assert same_call(source, excerpt_fixed, excerpt_source_store,
excerpt_fixed_store, excerpt, 'show', 'sample').returncode != 0
excerpt_input.write_bytes(bytes(range(80)))
assert same_call(source, excerpt_fixed, excerpt_source_store,
excerpt_fixed_store, excerpt,
'apply', 'sample', '1', excerpt_input).returncode == 0
assert same_call(source, excerpt_fixed, excerpt_source_store,
excerpt_fixed_store, excerpt, 'show', 'sample').stdout == bytes(range(32, 48))
input_file.write_bytes(struct.pack('<II', 2, 300) + b'abcdef')
assert same_call(source, selected, authored_store, selected_store,
selection, 'apply', 'value', '1', input_file).returncode != 0
assert same_call(source, selected, authored_store, selected_store,
selection, 'show', 'value').stdout == b'cde'
generated = root / 'plan.h'
generated.write_bytes(b'prior validated plan\n')
invalid = root / 'invalid.pure'
invalid.write_bytes(b'on put { broken }\n')
attempt = subprocess.run([str(compiler), str(invalid), str(generated)],
capture_output=True, timeout=15)
assert attempt.returncode != 0 and generated.read_bytes() == b'prior validated plan\n'
same_path = root / 'source.pure'
same_path.write_bytes(editor.read_bytes())
attempt = subprocess.run([str(compiler), str(same_path), str(same_path)],
capture_output=True, timeout=15)
assert attempt.returncode != 0 and same_path.read_bytes() == editor.read_bytes()
# A changed FIXED_PROGRAM in one build directory must never silently
# reuse the previous embedded plan.
switched_build = root / 'reconfigured-build'
digests = []
for definition in ('editor', 'selection', 'editor'):
command = ['make', '-C', str(HERE), f'BUILD={switched_build}',
f'FIXED_PROGRAM=examples/{definition}.pure', 'fixed-editor']
built = subprocess.run(command, capture_output=True, timeout=30)
assert built.returncode == 0, built.stderr[-1000:]
digests.append(hashlib.sha256((switched_build / 'pure-edit-fixed').read_bytes()).hexdigest())
assert digests[0] != digests[1] and digests[0] == digests[2]
symbols = subprocess.run(['nm', '-g', str(fixed)], capture_output=True,
text=True, check=True, timeout=15).stdout
assert 'pure_program_parse' not in symbols and 'pure_program_load' not in symbols
return {'profile': 'build-time-prepared-native-document-runner',
'editor_create_edit_conflict_large_restore': 'pass',
'dynamic_selection_and_invalid_range': 'pass',
'nested_read_and_required_extent': 'pass',
'invalid_compilation_preserves_previous_plan': 'pass',
'compiler_rejects_source_as_output': 'pass',
'same_directory_program_switch_rebuilds': 'pass',
'runtime_parser_symbols_absent': 'pass',
'fixed_sha256': hashlib.sha256(fixed.read_bytes()).hexdigest(),
'source_sha256': hashlib.sha256(source.read_bytes()).hexdigest(),
'selection_sha256': hashlib.sha256(selected.read_bytes()).hexdigest(),
'excerpt_sha256': hashlib.sha256(excerpt_fixed.read_bytes()).hexdigest()}
def main():
parser = argparse.ArgumentParser(description=__doc__)
parser.add_argument('--build', type=Path, default=HERE / 'build')
parser.add_argument('--selection-build', type=Path,
default=HERE / 'build/fixed-selection')
parser.add_argument('--excerpt-build', type=Path,
default=HERE / 'build/fixed-excerpt')
parser.add_argument('--output', type=Path)
args = parser.parse_args()
result = check(args.build, args.selection_build, args.excerpt_build)
body = json.dumps(result, indent=2) + '\n'
if args.output:
args.output.parent.mkdir(parents=True, exist_ok=True)
args.output.write_text(body)
print(body, end='')
if __name__ == '__main__':
main()
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