241 lines
11 KiB
Python
241 lines
11 KiB
Python
"""--stop-after / --stop-at deadline-stop integration tests.
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These cover the client-only sender stop conditions: --stop-after=MINS stops
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after N elapsed minutes, --stop-at=HH:MM[:SS] or now+N[smhd] stops at an
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absolute (or relative) wall-clock time. A reached deadline ends the transfer
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elegantly at the next chunk/file boundary -- whatever was already transferred is
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kept, the completion tail still runs, and the exit code is 0 (like rsync's
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clean "stopped early" behavior). Malformed values are rejected up front.
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"""
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import filecmp
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import os
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import shutil
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import time
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import pytest
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from common import (
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TEST_DATA_DIR,
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run_client,
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clean_dir,
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get_dest_received_dir,
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verify_transfer,
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)
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def _make(self_prefix):
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source = os.path.join(TEST_DATA_DIR, f"stop_{self_prefix}_src")
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dest = os.path.join(TEST_DATA_DIR, f"stop_{self_prefix}_dst")
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clean_dir(source)
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shutil.rmtree(dest, ignore_errors=True)
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os.makedirs(dest)
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return source, dest
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def _received_files(root):
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"""All files under `root`, relative paths."""
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if not os.path.isdir(root):
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return []
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return [
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os.path.relpath(os.path.join(dirpath, name), root)
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for dirpath, _, names in os.walk(root)
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for name in names
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]
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def _seed_source(source):
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"""Create a handful of regular and nested files."""
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files = {
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"small.txt": b"hello world\n",
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"medium.txt": b"the quick brown fox jumps over the lazy dog\n" * 400,
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"binary.bin": bytes(range(256)) * 100,
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"nested/deep.txt": b"deeply nested file\n",
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"nested/another.txt": b"another nested file\n" * 40,
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}
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for rel, content in files.items():
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path = os.path.join(source, rel)
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os.makedirs(os.path.dirname(path), exist_ok=True)
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with open(path, "wb") as fh:
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fh.write(content)
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def _seed_many(source, count=40, size=32 * 1024):
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"""Create `count` same-size regular files (enough to span several chunks)."""
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blob = os.urandom(size)
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for i in range(count):
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with open(os.path.join(source, f"f{i:04d}.dat"), "wb") as fh:
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fh.write(blob)
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def _seed_dest_by_transfer(source, dest, port, extra=None):
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"""Do a plain full transfer source->dest so dest exactly mirrors source."""
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run_client(source, dest, flags=(extra or []), port=port)
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def _received_subset_matches(source, received):
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"""Every file under `received` exists under `source` with identical bytes."""
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if not os.path.isdir(received):
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return not _received_files(received)
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rels = _received_files(received)
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for rel in rels:
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src = os.path.join(source, rel)
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dst = os.path.join(received, rel)
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if not os.path.isfile(src) or not filecmp.cmp(src, dst, shallow=False):
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return False
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return True
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class TestStopAfter:
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@pytest.mark.ci
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def test_stop_after_within_window(self, shared_server):
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"""A --stop-after set well past the run's duration lets it finish fully."""
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source, dest = _make("within")
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_seed_source(source)
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result, _ = run_client(source, dest, flags=["--stop-after=60"],
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port=shared_server.port)
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assert result.returncode == 0, \
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f"--stop-after full run failed: {(result.stderr or result.stdout)[:400]}"
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received = get_dest_received_dir(dest, source)
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mismatches, missing = verify_transfer(source, received)
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assert not mismatches and not missing, \
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f"full transfer mismatch: missing={missing} mismatches={mismatches}"
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@pytest.mark.ci
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def test_stop_after_rejects_nonpositive(self, shared_server):
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"""0 and negative minutes are invalid (must be a positive integer)."""
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source, dest = _make("reject")
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_seed_source(source)
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for bad in ("0", "-1"):
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result, _ = run_client(source, dest, flags=[f"--stop-after={bad}"],
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port=shared_server.port)
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assert result.returncode != 0, f"--stop-after={bad} should be rejected"
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class TestStopAt:
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@pytest.mark.ci
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def test_stop_at_past(self, shared_server):
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"""A --stop-at already in the past stops the transfer immediately but
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cleanly (exit 0, nothing transferred)."""
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source, dest = _make("past")
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_seed_source(source)
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# Use a same-day HH:MM two minutes in the past when that cannot roll
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# over into the previous day (which would parse as a FUTURE time today);
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# otherwise fall back to now+0s which is deterministically immediate.
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lt = time.localtime()
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if lt.tm_hour * 60 + lt.tm_min >= 3:
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past = time.localtime(time.time() - 120)
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stop_value = f"{past.tm_hour:02d}:{past.tm_min:02d}"
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else:
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stop_value = "now+0s"
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result, _ = run_client(source, dest, flags=[f"--stop-at={stop_value}"],
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port=shared_server.port)
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assert result.returncode == 0, \
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f"--stop-at past run failed (rc {result.returncode}): " \
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f"{(result.stderr or result.stdout)[:400]}"
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received = get_dest_received_dir(dest, source)
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assert _received_files(received) == [], \
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f"expected nothing transferred, got {_received_files(received)}"
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@pytest.mark.ci
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def test_stop_at_now_plus_stops_immediately(self, shared_server):
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"""now+0s resolves to the current instant, so the transfer stops at once."""
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source, dest = _make("nowplus")
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_seed_source(source)
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result, _ = run_client(source, dest, flags=["--stop-at=now+0s"],
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port=shared_server.port)
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assert result.returncode == 0, \
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f"--stop-at=now+0s should stop cleanly: " \
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f"{(result.stderr or result.stdout)[:400]}"
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received = get_dest_received_dir(dest, source)
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assert _received_files(received) == [], \
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f"expected nothing transferred, got {_received_files(received)}"
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@pytest.mark.ci
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def test_stop_rejects_garbage(self, shared_server):
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"""Malformed --stop-at/--stop-after values are rejected up front."""
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source, dest = _make("garbage")
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_seed_source(source)
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for flag in ("--stop-after=abc", "--stop-at=12:99", "--stop-at=12",
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"--stop-at=now+5x", "--stop-at=now-5s"):
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result, _ = run_client(source, dest, flags=[flag],
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port=shared_server.port)
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assert result.returncode != 0, f"{flag} should be rejected"
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class TestStopPartial:
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"""A genuine mid-transfer stop leaves a valid, strict non-empty prefix."""
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@pytest.mark.ci
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def test_stop_mid_transfer_leaves_valid_partial(self, shared_server):
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"""With --bwlimit a real deadline cuts the transfer mid-way: what WAS
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transferred is byte-identical, not everything is transferred, and the
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run returns 0 without corrupting any file."""
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source, dest = _make("partial")
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_seed_many(source, count=60, size=32 * 1024)
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flags = ["--chunk-size", "262144", "--bwlimit", "100", "--stop-at=now+3s"]
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result, _ = run_client(source, dest, flags=flags, port=shared_server.port)
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assert result.returncode == 0, \
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f"mid-transfer stop failed (rc {result.returncode}): " \
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f"{(result.stderr or result.stdout)[:400]}"
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received = get_dest_received_dir(dest, source)
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got = _received_files(received)
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assert len(got) > 0, "expected an early stop to still transfer a prefix"
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assert len(got) < 60, \
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f"expected a PARTIAL transfer (all 60 arrived): stopped too late"
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assert _received_subset_matches(source, received), \
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f"received files are not a byte-identical subset of the source"
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class TestStopDelete:
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"""--delete must never wipe the destination when the scan is cut short."""
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def _seed(self, prefix, port, many=False):
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source, dest = _make(prefix)
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if many:
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_seed_many(source, count=40, size=96 * 1024)
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else:
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_seed_source(source)
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_seed_dest_by_transfer(source, dest, port)
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return source, dest
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@pytest.mark.ci
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def test_stop_delete_immediate_preserves_source_mirrors(self, shared_server):
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"""Immediate stop + --delete: the incomplete/empty keep-set must NOT
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delete the seeded source mirrors (returncode 0, files survive)."""
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source, dest = self._seed("del_imm", shared_server.port)
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result, _ = run_client(source, dest, flags=["--delete", "--stop-at=now+0s"],
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port=shared_server.port)
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assert result.returncode == 0, \
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f"--delete immediate stop failed: {(result.stderr or result.stdout)[:400]}"
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received = get_dest_received_dir(dest, source)
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mismatches, missing = verify_transfer(source, received)
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assert not mismatches and not missing, \
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f"--delete wiped source mirrors: missing={missing} mismatches={mismatches}"
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@pytest.mark.ci
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def test_stop_delete_midscan_preserves_source_mirrors(self, shared_server):
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"""A mid-scan stop + --delete must suppress the partial keep-set so all
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seeded source mirrors survive."""
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source, dest = self._seed("del_mid", shared_server.port, many=True)
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flags = ["--delete", "--chunk-size", "262144", "--bwlimit", "300", "--stop-at=now+3s"]
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result, _ = run_client(source, dest, flags=flags, port=shared_server.port)
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assert result.returncode == 0, \
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f"--delete mid-scan stop failed: {(result.stderr or result.stdout)[:400]}"
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received = get_dest_received_dir(dest, source)
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mismatches, missing = verify_transfer(source, received)
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assert not mismatches and not missing, \
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f"--delete mid-scan wiped source mirrors: missing={missing} mismatches={mismatches}"
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@pytest.mark.ci
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def test_stop_delete_multithreaded_preserves_source_mirrors(self, shared_server):
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"""-m immediate stop + --delete: the completion tail must not read the
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still-appendable manifest (no race) and must not delete the mirrors."""
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source, dest = self._seed("del_mt", shared_server.port, many=True)
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result, _ = run_client(source, dest, flags=["-m", "--delete", "--stop-at=now+0s"],
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port=shared_server.port)
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assert result.returncode == 0, \
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f"-m --delete immediate stop failed: {(result.stderr or result.stdout)[:400]}"
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received = get_dest_received_dir(dest, source)
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mismatches, missing = verify_transfer(source, received)
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assert not mismatches and not missing, \
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f"-m --delete wiped source mirrors: missing={missing} mismatches={mismatches}" |