def assert_git_log_matches(golden_log_path: pathlib.Path):
handle, git_log_path = tempfile.mkstemp(".log")
log_cmd = ["git", "log", "-p", "--no-decorate"]
log_cmd.extend(["--", ".", ":(exclude)synth.metadata"])
with os.fdopen(handle, "w") as git_log:
subprocess.run(log_cmd, stdout=git_log)
util.assert_git_logs_match(git_log_path, str(golden_log_path), log_lines_match)
def synthesize_loop_with_realistic_change_history(
synthesize_loop_fixture: SynthesizeLoopFixture, multiple_prs: bool,
golden_file: str):
change_history = [
[
WriteFile("a.txt", "a"),
NoChange(),
NoChange(),
NoChange(),
WriteFile("b.txt", "b"),
WriteFile("a.txt", "z"),
],
[
NoChange(),
Failed(),
Failed(),
WriteFile("c.txt", "c"),
WriteFile("c.txt", "c-more"),
NoChange(),
],
]
source_versions = compile_histories(change_history,
synthesize_loop_fixture.synthesizer)
# Call synthesize_loop.
synthesize_loop_fixture.synthesize_loop(source_versions, multiple_prs)
# Confirm the git log looks like the golden log.
handle, git_log_path = tempfile.mkstemp(".log")
with os.fdopen(handle, "w") as git_log:
subprocess.run(
["git", "log", "-p", "--no-decorate"],
stdout=git_log,
)
golden_log_path = str(
pathlib.Path(__file__).parent / "testdata" / golden_file)
util.assert_git_logs_match(git_log_path, golden_log_path)
# Confirm that binary search yielded some benefit: for at least one version
# synthesize was never called.
flat_source_versions = [v for group in source_versions for v in group]
versions_never_synthesized = [
v for v in flat_source_versions if v.synthesize_call_count == 0
]
assert len(versions_never_synthesized) > 0