382 lines
12 KiB
Python
382 lines
12 KiB
Python
from __future__ import annotations
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import asyncio
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import unittest
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from fastapi import HTTPException, Request
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from app.main import (
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ReactFlowEdgePayload,
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ReactFlowProjectPayload,
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build_reactflow_system_xml,
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compile_reactflow_network,
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simulate_system_xml,
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)
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from PythonModels.components.resistive_pipe import ResistivePipe
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from PythonModels.core.solver import SolveIVPConfig
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from PythonModels.systems.generic import (
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GenericFluidSystem,
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SimulationPreparationError,
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)
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from tests.test_system_xml_protocol import physical_port
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def component_node(
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component_id: str,
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model_type: str,
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ports: list[dict[str, str]],
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parameters: dict[str, float] | None = None,
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) -> dict[str, object]:
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return {
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"id": component_id,
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"type": "simulationComponent",
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"position": {"x": 0.0, "y": 0.0},
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"data": {
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"label": component_id,
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"componentType": model_type,
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"modelType": model_type,
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"ports": ports,
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"parameters": parameters or {},
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},
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}
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def physical_edge(
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edge_id: str,
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first_component: str,
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first_port: str,
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second_component: str,
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second_port: str,
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) -> dict[str, str]:
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return {
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"id": edge_id,
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"source": first_component,
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"sourceHandle": first_port,
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"target": second_component,
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"targetHandle": second_port,
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}
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def two_port_definitions() -> list[dict[str, str]]:
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return [
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physical_port("port_a", "inlet", "left"),
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physical_port("port_b", "outlet", "right"),
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]
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def tee_port_definitions() -> list[dict[str, str]]:
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return [
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physical_port("port_in", "bidirectional", "left"),
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physical_port("port_out1", "bidirectional", "right"),
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physical_port("port_out2", "bidirectional", "right"),
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]
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def chain_project(*, reverse_edges: bool = False) -> ReactFlowProjectPayload:
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edges = [
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physical_edge("edge-1", "cylinder_1", "port_b", "orifice_1", "port_a"),
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physical_edge("edge-2", "orifice_1", "port_b", "pipe_1", "port_a"),
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physical_edge("edge-3", "pipe_1", "port_b", "tank_1", "port_a"),
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]
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if reverse_edges:
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edges = [
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physical_edge(
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edge["id"],
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edge["target"],
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edge["targetHandle"],
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edge["source"],
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edge["sourceHandle"],
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)
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for edge in edges
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]
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return ReactFlowProjectPayload(
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name="generic-chain",
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nodes=[
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component_node(
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"cylinder_1",
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"cylinder",
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[physical_port("port_b", "outlet", "right")],
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{"volume": 0.01, "p0": 500000.0, "T0": 300.0},
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),
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component_node(
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"orifice_1",
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"orifice",
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two_port_definitions(),
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{"K": 1e-5, "opening": 1.0},
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),
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component_node(
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"pipe_1",
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"pipe",
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two_port_definitions(),
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{
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"length": 1.0,
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"diameter": 0.02,
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"lambda_darcy": 0.02,
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"p0": 100000.0,
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"T0": 300.0,
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},
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),
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component_node(
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"tank_1",
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"tank",
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[physical_port("port_a", "inlet", "left")],
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{"volume": 0.1, "p0": 100000.0, "T0": 300.0},
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),
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],
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edges=edges,
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simulation={
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"t_start": 0.0,
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"t_stop": 0.01,
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"step": 0.005,
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"max_step": 0.001,
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"method": "BDF",
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},
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)
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def branched_project() -> ReactFlowProjectPayload:
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return ReactFlowProjectPayload(
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name="generic-branch",
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nodes=[
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component_node(
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"cylinder_1",
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"cylinder",
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[physical_port("port_b", "outlet", "right")],
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{"volume": 0.01, "p0": 500000.0, "T0": 300.0},
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),
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component_node("tee_1", "tee", tee_port_definitions()),
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component_node(
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"orifice_1",
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"orifice",
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two_port_definitions(),
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{"K": 1e-5, "opening": 1.0},
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),
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component_node(
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"pipe_1",
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"pipe",
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two_port_definitions(),
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{
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"length": 1.0,
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"diameter": 0.02,
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"lambda_darcy": 0.02,
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"p0": 100000.0,
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"T0": 300.0,
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},
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),
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component_node(
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"orifice_2",
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"orifice",
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two_port_definitions(),
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{"K": 1e-5, "opening": 1.0},
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),
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component_node(
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"pipe_2",
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"pipe",
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two_port_definitions(),
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{
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"length": 1.0,
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"diameter": 0.02,
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"lambda_darcy": 0.02,
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"p0": 100000.0,
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"T0": 300.0,
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},
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),
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component_node("tee_2", "tee", tee_port_definitions()),
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component_node(
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"tank_1",
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"tank",
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[physical_port("port_a", "inlet", "left")],
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{"volume": 0.1, "p0": 100000.0, "T0": 300.0},
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),
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],
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edges=[
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physical_edge("edge-1", "cylinder_1", "port_b", "tee_1", "port_in"),
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physical_edge("edge-2", "tee_1", "port_out1", "orifice_1", "port_a"),
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physical_edge("edge-3", "orifice_1", "port_b", "pipe_1", "port_a"),
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physical_edge("edge-4", "pipe_1", "port_b", "tee_2", "port_out1"),
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physical_edge("edge-5", "tee_1", "port_out2", "orifice_2", "port_a"),
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physical_edge("edge-6", "orifice_2", "port_b", "pipe_2", "port_a"),
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physical_edge("edge-7", "pipe_2", "port_b", "tee_2", "port_out2"),
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physical_edge("edge-8", "tee_2", "port_in", "tank_1", "port_a"),
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],
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simulation={
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"t_start": 0.0,
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"t_stop": 0.005,
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"step": 0.005,
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"max_step": 0.001,
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"method": "BDF",
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},
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)
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def xml_request(body: bytes) -> Request:
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delivered = False
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async def receive():
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nonlocal delivered
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if delivered:
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return {"type": "http.disconnect"}
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delivered = True
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return {"type": "http.request", "body": body, "more_body": False}
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return Request(
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{
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"type": "http",
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"method": "POST",
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"path": "/api/system-xml/simulate",
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"headers": [(b"content-type", b"application/xml")],
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},
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receive,
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)
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class GenericSystemXmlSimulationTests(unittest.TestCase):
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def test_xml_pipe_compiles_to_quasi_steady_resistance(self) -> None:
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network = compile_reactflow_network(chain_project())
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self.assertIsInstance(network.components["pipe_1"], ResistivePipe)
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structure = network.pressure_flow_structure_dict()
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self.assertEqual(structure["unknownCount"], 12)
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self.assertEqual(structure["equationCount"], 12)
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self.assertTrue(structure["isSquare"])
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def test_generic_chain_simulation_conserves_mass_and_moves_pressures(self) -> None:
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network = compile_reactflow_network(chain_project())
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result = GenericFluidSystem(network).simulate(
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SolveIVPConfig(
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t_start=0.0,
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t_stop=0.01,
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method="BDF",
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max_step=0.001,
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),
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sample_step=0.005,
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)
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self.assertTrue(result.success)
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self.assertLess(result.series["cylinder_1.p"][-1], 500000.0)
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self.assertGreater(result.series["tank_1.p"][-1], 100000.0)
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total_mass = [
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cylinder + tank
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for cylinder, tank in zip(
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result.series["cylinder_1.m"],
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result.series["tank_1.m"],
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)
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]
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self.assertLess(max(total_mass) - min(total_mass), 1e-12)
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total_energy = [
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cylinder + tank
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for cylinder, tank in zip(
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result.series["cylinder_1.U"],
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result.series["tank_1.U"],
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)
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]
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self.assertLess(max(total_energy) - min(total_energy), 1e-6)
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self.assertLess(
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result.diagnostics["pressureFlow"]["maxScaledResidual"],
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1e-7,
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)
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def test_physical_edge_order_does_not_change_simulation(self) -> None:
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forward = GenericFluidSystem(
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compile_reactflow_network(chain_project())
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).simulate(
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SolveIVPConfig(t_stop=0.005, method="BDF", max_step=0.001),
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sample_step=0.005,
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)
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reverse = GenericFluidSystem(
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compile_reactflow_network(chain_project(reverse_edges=True))
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).simulate(
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SolveIVPConfig(t_stop=0.005, method="BDF", max_step=0.001),
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sample_step=0.005,
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)
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self.assertAlmostEqual(
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forward.final["tank_1.p"],
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reverse.final["tank_1.p"],
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places=7,
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)
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def test_branched_topology_is_solved_without_fixed_testmodel_closure(self) -> None:
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network = compile_reactflow_network(branched_project())
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result = GenericFluidSystem(network).simulate(
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SolveIVPConfig(t_stop=0.005, method="BDF", max_step=0.001),
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sample_step=0.005,
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)
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self.assertTrue(result.success)
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self.assertAlmostEqual(
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result.final["pipe_1.port_a.m_flow"],
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result.final["pipe_2.port_a.m_flow"],
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places=10,
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)
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self.assertGreater(result.final["tank_1.p"], 100000.0)
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def test_directly_coupled_storage_components_are_rejected(self) -> None:
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project = chain_project()
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project.nodes = [project.nodes[0], project.nodes[-1]]
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project.edges = [
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ReactFlowEdgePayload(
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**physical_edge(
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"edge-1",
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"cylinder_1",
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"port_b",
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"tank_1",
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"port_a",
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)
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)
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]
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with self.assertRaises(SimulationPreparationError) as caught:
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GenericFluidSystem(compile_reactflow_network(project))
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self.assertIn(
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"IDEAL_STORAGE_COUPLING_UNSUPPORTED",
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{issue.code for issue in caught.exception.issues},
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)
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def test_raw_system_xml_runs_through_generic_simulation_endpoint(self) -> None:
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xml = build_reactflow_system_xml(chain_project())
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response = asyncio.run(simulate_system_xml(xml_request(xml)))
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self.assertTrue(response["success"])
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self.assertEqual(response["simulation"]["method"], "BDF")
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self.assertEqual(response["model"]["pressureFlowSystem"]["unknownCount"], 12)
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self.assertEqual(response["diagnostics"]["stateCount"], 4)
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self.assertGreater(response["final"]["tank_1.p"], 100000.0)
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def test_simulation_endpoint_returns_422_for_ideal_storage_coupling(self) -> None:
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project = chain_project()
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project.nodes = [project.nodes[0], project.nodes[-1]]
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project.edges = [
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ReactFlowEdgePayload(
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**physical_edge(
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"edge-1",
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"cylinder_1",
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"port_b",
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"tank_1",
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"port_a",
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)
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)
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]
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with self.assertRaises(HTTPException) as caught:
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asyncio.run(
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simulate_system_xml(
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xml_request(build_reactflow_system_xml(project))
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)
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)
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self.assertEqual(caught.exception.status_code, 422)
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self.assertIn(
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"IDEAL_STORAGE_COUPLING_UNSUPPORTED",
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{
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issue["code"]
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for issue in caught.exception.detail["issues"]
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},
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)
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if __name__ == "__main__":
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unittest.main()
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