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from __future__ import annotations
import ast
import csv
import math
import os
import re
import shlex
import subprocess
from pathlib import Path
ROOT = Path(os.environ.get("ENGIWORLD_EVAL_ROOT", "/home/user/Desktop"))
CASE = ROOT / "dynamic"
FORCES = CASE / "postProcessing/bodyForces/0/forces.dat"
NUMBER = re.compile(r"[-+]?(?:\d+(?:\.\d*)?|\.\d+)(?:[eE][-+]?\d+)?")
def read(path: Path) -> str:
return path.read_text(encoding="utf-8", errors="ignore")
def named_block(text: str, name: str) -> str:
text = re.sub(r"/\*.*?\*/|//[^\n]*", "", text, flags=re.S)
match = re.search(rf"(?m)^\s*{re.escape(name)}\s*\{{", text)
if not match:
raise ValueError(f"missing block {name}")
start = text.find("{", match.start())
depth = 0
for index in range(start, len(text)):
depth += text[index] == "{"
depth -= text[index] == "}"
if depth == 0:
return text[start + 1 : index]
raise ValueError(f"unterminated block {name}")
def paren_section(text: str, name: str) -> str:
match = re.search(rf"(?m)^\s*{re.escape(name)}\s*\(", text)
if not match:
raise ValueError(f"missing section {name}")
start = text.find("(", match.start())
depth = 0
for index in range(start, len(text)):
depth += text[index] == "("
depth -= text[index] == ")"
if depth == 0:
return text[start + 1 : index]
raise ValueError(f"unterminated section {name}")
def has_entry(block: str, key: str, value: str) -> bool:
return re.search(rf"(?<!\w){re.escape(key)}\s+{value}\s*;", block) is not None
def scalar_entry(text: str, key: str) -> float:
match = re.search(rf"(?<!\w){re.escape(key)}\s+({NUMBER.pattern})\s*;", text)
if not match:
raise ValueError(f"missing scalar entry {key}")
return float(match.group(1))
def dimensioned_scalar(text: str, key: str) -> float:
match = re.search(
rf"(?<!\w){re.escape(key)}\s+(?:\[[^\]]+\]\s+)?({NUMBER.pattern})\s*;",
text,
)
if not match:
raise ValueError(f"missing dimensioned scalar entry {key}")
return float(match.group(1))
def vector_entry(text: str, key: str) -> tuple[float, float, float]:
match = re.search(
rf"(?<!\w){re.escape(key)}\s+\(\s*({NUMBER.pattern})\s+({NUMBER.pattern})\s+({NUMBER.pattern})\s*\)\s*;",
text,
)
if not match:
raise ValueError(f"missing vector entry {key}")
return tuple(float(match.group(index)) for index in range(1, 4))
def patch(text: str, name: str) -> str:
return named_block(named_block(text, "boundaryField"), name)
def zone_labels(text: str, name: str) -> set[int]:
block = named_block(text, name)
match = re.search(r"\bcellLabels\s+List<label>\s+(\d+)\s*\((.*?)\)\s*;", block, re.S)
if not match:
raise ValueError(f"missing labels for zone {name}")
labels = [int(value) for value in match.group(2).split()]
if len(labels) != int(match.group(1)) or len(labels) != len(set(labels)):
raise ValueError("invalid cell-zone labels")
return set(labels)
def vector_field(path: Path) -> list[tuple[float, float, float]]:
match = re.search(r"internalField\s+nonuniform\s+List<vector>\s+(\d+)\s*\((.*?)\)\s*;", read(path), re.S)
if not match:
raise ValueError("missing vector field")
values = [tuple(float(value) for value in item.split()) for item in re.findall(r"\(([^()]+)\)", match.group(2))]
if len(values) != int(match.group(1)):
raise ValueError("vector field count mismatch")
return values
def mesh_geometry_is_valid(mesh: str) -> bool:
vertices = [
tuple(float(value) for value in item.split())
for item in re.findall(r"\(([^()]+)\)", paren_section(mesh, "vertices"))
]
if len(vertices) != 64:
return False
xs, ys, zs = zip(*vertices)
inner = [point for point in vertices if abs(math.hypot(point[0], point[1]) - 1.0) <= 1.0e-5]
return (
abs(min(xs) + 5.0) <= 1.0e-12
and abs(max(xs) - 5.0) <= 1.0e-12
and abs(min(ys) + 1.5) <= 1.0e-12
and abs(max(ys) - 2.5) <= 1.0e-12
and abs(min(zs) + 1.0) <= 1.0e-12
and abs(max(zs) - 1.0) <= 1.0e-12
and len(inner) == 16
)
def field_count(path: Path, kind: str, class_name: str) -> int:
text = read(path)
if not (
re.search(r"(?m)^\s*format\s+ascii\s*;", text)
and re.search(rf"(?m)^\s*class\s+{re.escape(class_name)}\s*;", text)
):
raise ValueError(f"invalid field header: {path}")
match = re.search(
rf"internalField\s+nonuniform\s+List<{kind}>\s+(\d+)\s*\((.*?)\)\s*;",
text,
re.S,
)
if not match:
raise ValueError(f"missing nonuniform {kind} field")
declared = int(match.group(1))
if kind == "vector":
values = [
tuple(float(value) for value in item.split())
for item in re.findall(r"\(([^()]+)\)", match.group(2))
]
if any(len(value) != 3 for value in values):
raise ValueError("invalid vector width")
flattened = [value for vector in values for value in vector]
actual = len(values)
else:
flattened = [float(value) for value in NUMBER.findall(match.group(2))]
actual = len(flattened)
if declared != actual or not all(math.isfinite(value) for value in flattened):
raise ValueError("field declaration/value mismatch")
return declared
def force_history() -> list[tuple[float, float, float, float]]:
header = None
history = []
for line in read(FORCES).splitlines():
stripped = line.strip()
if stripped.startswith("# Time"):
header = " ".join(stripped.split())
continue
if not stripped or stripped.startswith("#"):
continue
time_match = re.match(rf"^\s*({NUMBER.pattern})\s+", stripped)
vectors = re.findall(
rf"\(\s*({NUMBER.pattern})\s+({NUMBER.pattern})\s+({NUMBER.pattern})\s*\)",
stripped,
)
if time_match is None or len(vectors) != 4:
raise ValueError("forces.dat row does not contain four pressure/viscous vectors")
pressure_fx = float(vectors[0][0])
viscous_fx = float(vectors[1][0])
history.append((float(time_match.group(1)), pressure_fx, viscous_fx, pressure_fx + viscous_fx))
if header is None:
raise ValueError("missing forces.dat component header")
if "forces(pressure viscous)" not in header or "moments(pressure viscous)" not in header:
raise ValueError("unexpected forces.dat component header")
if "porous" in header.lower():
raise ValueError("unexpected porous component in non-porous case")
return history
def log_completed(path: Path, required: tuple[str, ...] = ()) -> bool:
text = read(path)
low = text.lower()
return (
"foam fatal" not in low
and text.rstrip().endswith("End")
and all(token in text for token in required)
)
def postprocess_script_is_valid(path: Path) -> bool:
source = read(path)
ast.parse(source)
original = FORCES.read_bytes()
original_history = force_history()
delta = 0.123456789
restored = False
mutation_ok = False
try:
text = original.decode("utf-8")
lines = text.splitlines()
data_indexes = [
index
for index, line in enumerate(lines)
if line.strip() and not line.lstrip().startswith("#")
]
if not data_indexes:
return False
last_index = data_indexes[-1]
first_vector = re.search(
rf"(\(\s*)({NUMBER.pattern})(\s+{NUMBER.pattern}\s+{NUMBER.pattern}\s*\))",
lines[last_index],
)
if first_vector is None:
return False
mutated_pressure = float(first_vector.group(2)) + delta
lines[last_index] = (
lines[last_index][: first_vector.start()]
+ first_vector.group(1)
+ f"{mutated_pressure:.12g}"
+ first_vector.group(3)
+ lines[last_index][first_vector.end() :]
)
FORCES.write_text("\n".join(lines) + ("\n" if text.endswith("\n") else ""), encoding="utf-8")
environment = os.environ.copy()
environment["ENGIWORLD_TASK_ROOT"] = str(ROOT)
result = subprocess.run(
["python3", str(path)],
stdout=subprocess.PIPE,
stderr=subprocess.STDOUT,
text=True,
timeout=30,
env=environment,
)
if result.returncode == 0:
reported = float(read(ROOT / "summary.txt").strip())
with (ROOT / "force_history.csv").open(encoding="utf-8", newline="") as stream:
rows = list(csv.DictReader(stream))
expected = original_history[-1][3] + delta
mutation_ok = (
len(rows) == 2001
and tuple(rows[0]) == ("time_s", "pressure_fx_n", "viscous_fx_n", "total_fx_n")
and abs(float(rows[-1]["total_fx_n"]) - expected) <= 5.0e-7
and abs(reported - expected) <= 5.0e-7
)
finally:
FORCES.write_bytes(original)
environment = os.environ.copy()
environment["ENGIWORLD_TASK_ROOT"] = str(ROOT)
restored = subprocess.run(
["python3", str(path)],
stdout=subprocess.PIPE,
stderr=subprocess.STDOUT,
text=True,
timeout=30,
env=environment,
).returncode == 0
return mutation_ok and restored
def check_case() -> bool:
mesh = read(CASE / "system/blockMeshDict")
motion = read(CASE / "constant/dynamicMeshDict")
mover = named_block(motion, "mover")
topology = read(CASE / "system/topoSetDict")
velocity = read(CASE / "0/U")
physical = read(CASE / "constant/physicalProperties")
momentum = read(CASE / "constant/momentumTransport")
pressure = read(CASE / "0/p")
control = read(CASE / "system/controlDict")
forces = named_block(named_block(control, "functions"), "bodyForces")
return all(
(
mesh.count("hex (") == 20,
mesh_geometry_is_valid(mesh),
mesh.count("(10 10 1)") == 16,
mesh.count("(10 5 1)") == 4,
has_entry(mover, "type", r"motionSolver"),
has_entry(mover, "motionSolver", r"solidBody"),
has_entry(mover, "cellZone", r"movingZone"),
has_entry(mover, "solidBodyMotionFunction", r"oscillatingRotatingMotion"),
all(abs(value) <= 1.0e-12 for value in vector_entry(mover, "origin")),
all(
abs(left - right) <= 1.0e-12
for left, right in zip(vector_entry(mover, "amplitude"), (0.0, 0.0, 5.0))
),
abs(scalar_entry(mover, "omega") - 2.0 * math.pi) <= 1.0e-12,
abs(scalar_entry(topology, "radius") - 1.41) <= 1.0e-12,
has_entry(patch(velocity, "left"), "value", r"uniform\s+\(0\.5\s+0(?:\.0+)?\s+0(?:\.0+)?\)"),
has_entry(patch(velocity, "right"), "type", r"zeroGradient"),
all(has_entry(patch(velocity, name), "type", r"slip") for name in ("down", "up")),
has_entry(patch(velocity, "cylinder"), "type", r"movingWallVelocity"),
has_entry(patch(pressure, "right"), "type", r"fixedValue"),
has_entry(patch(pressure, "right"), "value", r"uniform\s+0(?:\.0+)?"),
abs(dimensioned_scalar(physical, "nu") - 0.01) <= 1.0e-12,
has_entry(momentum, "simulationType", r"laminar"),
abs(scalar_entry(control, "endTime") - 2.0) <= 1.0e-12,
abs(scalar_entry(control, "deltaT") - 0.001) <= 1.0e-12,
abs(scalar_entry(control, "writeInterval") - 0.25) <= 1.0e-12,
has_entry(forces, "type", r"forces"),
has_entry(forces, "patches", r"\(\s*cylinder\s*\)"),
abs(scalar_entry(forces, "rhoInf") - 1.0) <= 1.0e-12,
all(abs(value) <= 1.0e-12 for value in vector_entry(forces, "CofR")),
)
)
def check() -> bool:
required = (
ROOT / "postprocess.py",
ROOT / "summary.txt",
ROOT / "force_history.csv",
CASE / "log.blockMesh",
CASE / "log.checkMesh",
CASE / "log.topoSet",
CASE / "log.pimpleFoam",
CASE / "log.checkMeshFinal",
CASE / "constant/polyMesh/cellZones",
CASE / "0.25/polyMesh/points",
CASE / "2/U",
CASE / "2/p",
FORCES,
)
if any(not path.is_file() or path.stat().st_size == 0 for path in required):
return False
if not postprocess_script_is_valid(ROOT / "postprocess.py"):
return False
if not (
log_completed(CASE / "log.blockMesh", ("nCells: 1800",))
and log_completed(CASE / "log.topoSet", ("movingZone now size 804",))
and log_completed(CASE / "log.checkMesh", ("Mesh OK.",))
and log_completed(CASE / "log.checkMeshFinal", ("Mesh OK.",))
and log_completed(CASE / "log.pimpleFoam", ("Time = 2s",))
and "movingZone" in read(CASE / "constant/polyMesh/cellZones")
and field_count(CASE / "2/U", "vector", "volVectorField") == 1800
and field_count(CASE / "2/p", "scalar", "volScalarField") == 1800
and (CASE / "0.25/polyMesh/points").read_bytes() != (CASE / "constant/polyMesh/points").read_bytes()
):
return False
times = set()
for path in CASE.iterdir():
if not path.is_dir():
continue
try:
times.add(round(float(path.name), 9))
except ValueError:
continue
expected_times = {round(index * 0.25, 9) for index in range(9)}
if not expected_times.issubset(times) or not times or max(times) != 2.0:
return False
mesh_check = subprocess.run(
[
"bash",
"--noprofile",
"--norc",
"-c",
f"trap - CHLD; . /opt/openfoam11/etc/bashrc && checkMesh -latestTime -case {shlex.quote(str(CASE))}",
],
stdout=subprocess.PIPE,
stderr=subprocess.STDOUT,
text=True,
timeout=120,
)
if (
mesh_check.returncode != 0
or "Mesh OK." not in mesh_check.stdout
or "Failed " in mesh_check.stdout
or not mesh_check.stdout.rstrip().endswith("End")
or not check_case()
):
return False
centres_result = subprocess.run(
[
"bash",
"--noprofile",
"--norc",
"-c",
f"trap - CHLD; . /opt/openfoam11/etc/bashrc && postProcess -case {shlex.quote(str(CASE))} -latestTime -func writeCellCentres",
],
stdout=subprocess.PIPE,
stderr=subprocess.STDOUT,
text=True,
timeout=120,
)
centres_output = centres_result.stdout
if (
centres_result.returncode != 0
or "foam fatal" in centres_output.lower()
or not centres_output.rstrip().endswith("End")
):
return False
centres = vector_field(CASE / "2/C")
actual_zone = zone_labels(read(CASE / "constant/polyMesh/cellZones"), "movingZone")
expected_zone = {
index
for index, point in enumerate(centres)
if math.hypot(point[0], point[1]) <= 1.41 + 1.0e-9 and -2.0 <= point[2] <= 2.0
}
if actual_zone != expected_zone or not actual_zone or len(actual_zone) >= 1800:
return False
history = force_history()
if len(history) != 2001:
return False
if not all(all(math.isfinite(value) for value in row) for row in history):
return False
if any(abs(row[0] - index * 0.001) > 1.0e-9 for index, row in enumerate(history)):
return False
totals = [row[3] for row in history]
if (
max(abs(row[1]) for row in history) <= 0.1
or max(abs(row[2]) for row in history) <= 0.01
or max(totals) - min(totals) <= 0.1
or abs(totals[-1]) <= 1.0e-6
):
return False
keys = ("time_s", "pressure_fx_n", "viscous_fx_n", "total_fx_n")
with (ROOT / "force_history.csv").open(encoding="utf-8", newline="") as stream:
rows = list(csv.DictReader(stream))
if len(rows) != len(history) or tuple(rows[0]) != keys:
return False
for row, expected in zip(rows, history):
actual = tuple(float(row[key]) for key in keys)
if any(abs(left - right) > 5e-7 for left, right in zip(actual, expected)):
return False
lines = [line.strip() for line in read(ROOT / "summary.txt").splitlines() if line.strip()]
if len(lines) != 1:
return False
reported = float(lines[0])
return math.isfinite(reported) and abs(reported - history[-1][3]) <= 5e-7
def main() -> int:
try:
result = check()
except Exception:
result = False
print("True" if result else "False")
return 0
if __name__ == "__main__":
raise SystemExit(main())
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