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slic/tests/test_utils_hastepics.py
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Update tests/test_utils_hastepics.py
2025-08-11 22:46:42 +02:00

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Python

import patch_put
import time
import threading
import pytest
import epics
import os
from epics.pv import PV
from epics.pv import _PVcache_
from slic.utils.hastyepics import *
def _in_pv_cache(pvname: str) -> bool:
return any(k[0] == pvname for k in _PVcache_.keys())
def _evict_prefix(prefix: str):
for k in list(_PVcache_.keys()):
if k[0].startswith(prefix):
_PVcache_.pop(k, None)
@pytest.fixture(scope="session", autouse=True)
def clear_pv_cache_at_session_start():
"""Clear PyEPICS PV cache for our prefix once at session start."""
prefix = os.environ.get("TEST_PV_PREFIX", "TEST:")
_evict_prefix(prefix)
yield
# ============================
# Tests
# ============================
def test_get_pv_connect_false_and_true():
name = "TEST:SIM:VAL"
assert not _in_pv_cache(name)
pv = get_pv(name, connect=False)
assert isinstance(pv, PV)
assert _in_pv_cache(name), "PV should be in _PVcache_ after get_pv(connect=False)"
assert not pv.connected
# Now actually connect
pv2 = get_pv(name, connect=True, timeout=2.0)
assert pv2.connected
def test_motor_init_strips_suffixes():
m1 = Motor("TEST:SIM:M1.VAL")
# Afficher les attributs de base de epics.Motor
print("Attributes of epics.Motor:")
print(" _init_list:", getattr(epics.Motor, "_init_list", []))
print(" _extras:", getattr(epics.Motor, "_extras", {}))
# Afficher les attributs de ton objet Motor
print("\nAttributes of Motor (custom):")
print(" _init_list:", getattr(m1, "_init_list", []))
print(" _extras:", getattr(m1, "_extras", {}))
# Afficher tous les attributs de epics.Motor (via dir())
print("\nAll attributes of epics.Motor:")
print(dir(epics.Motor))
# Afficher tous les attributs de ta classe Motor (via dir())
print("\nAll attributes of Motor (custom):")
print(dir(m1))
assert m1._prefix == "TEST:SIM:M1"
m2 = Motor("TEST:SIM:M2.")
assert m2._prefix == "TEST:SIM:M2"
m3 = Motor("TEST:SIM:M3")
assert m3._prefix == "TEST:SIM:M3"
def test_motor_invalid_name_raises():
with pytest.raises(MotorException):
Motor(None)
def test_disabled_removed_relative_to_upstream():
m = Motor("TEST:SIM:M7")
init_list = tuple(getattr(m, "_init_list", ()))
extras = dict(getattr(m, "_extras", {}))
assert len(init_list) > 0, "_init_list is empty; expected at least one field"
assert len(extras) > 0, "_extras is empty; expected at least one entry"
assert "disabled" not in getattr(m, "_init_list", ()), \
"disabled devait être retiré de _init_list par rapport à epics.Motor"
assert "disabled" not in getattr(m, "_extras", {}), \
"disabled devait être retiré de _extras par rapport à epics.Motor"
def _get_cached_pv(name: str):
for k, pv in _PVcache_.items():
if k[0] == name:
return pv
return None
def test_motor_init_list_and_extras_build_handles_eagerly():
base_init = tuple(getattr(epics.Motor, "_init_list", ()))
base_extras = dict(getattr(epics.Motor, "_extras", {}))
base_init_wo_disabled = tuple(x for x in base_init if x != "disabled")
base_extras_wo_disabled = {k: v for k, v in base_extras.items() if k != "disabled"}
motor_prefix = "TEST:SIM:M4"
_evict_prefix(motor_prefix)
init_pvnames = [f"{motor_prefix}.{attr}" for attr in base_init_wo_disabled]
extra_pvnames = [f"{motor_prefix}{suffix}" for suffix in base_extras_wo_disabled.values()]
for name in init_pvnames + extra_pvnames:
assert not _in_pv_cache(name), f"{name} should not be in cache before Motor()"
m = Motor(motor_prefix)
# init_list: handles exist in cache and are disconnected
for name in init_pvnames:
assert _in_pv_cache(name), f"{name} not inserted into _PVcache_ by __init__"
cached = _get_cached_pv(name)
assert cached is not None and not cached.connected
# handles exist in cache
for attr_name, suffix in base_extras_wo_disabled.items():
name = f"{motor_prefix}{suffix}"
assert _in_pv_cache(name), f"{name} not inserted into _PVcache_ by extras loop"
cached = _get_cached_pv(name)
assert cached is not None and not cached.connected
def test_motor_val_connect_via_cache():
motor_prefix = "TEST:SIM:M5"
pvname = f"{motor_prefix}.VAL"
assert not _in_pv_cache(pvname)
m = Motor(motor_prefix)
assert _in_pv_cache(pvname), f"{pvname} should be cached after Motor()"
pv = _get_cached_pv(pvname)
assert pv is not None
assert not pv.connected
assert pv.wait_for_connection(timeout=2.0)
pv.put(123.0, wait=True)
assert pv.get(timeout=1.0) == 123.0
def test_speedup_get_pv():
"""Ton get_pv délègue à epics.get_pv : on vérifie juste qu'il n'est pas nettement plus lent."""
t0 = time.perf_counter()
get_pv("TEST:SIM:M13.VAL", connect=False)
t1 = time.perf_counter()
t2 = time.perf_counter()
epics.get_pv("TEST:SIM:M13.VAL", connect=True)
t3 = time.perf_counter()
fast_time = t1 - t0
slow_time = t3 - t2
assert fast_time <= slow_time, (
f"get_pv ({fast_time:.6f}s) plus lent que EPICS ({slow_time:.6f}s)"
)
def test_speedup_motor_instantiation():
"""On exige juste pas de grosse régression vs EPICS."""
t0 = time.perf_counter()
Motor("TEST:SIM:M6")
t1 = time.perf_counter()
t2 = time.perf_counter()
epics.Motor("TEST:SIM:M8")
t3 = time.perf_counter()
fast_time = t1 - t0
slow_time = t3 - t2
assert fast_time <= slow_time, (
f"Motor custom ({fast_time:.6f}s) plus lent que EPICS.Motor ({slow_time:.6f}s)"
)
def test_speedup_motor_PV():
# baseline EPICS
m_slow = Motor("TEST:SIM:M14")
t0 = time.perf_counter()
pv_slow = m_slow.PV("VAL", connect=True)
t1 = time.perf_counter()
m_fast = Motor("TEST:SIM:M15")
t2 = time.perf_counter()
pv_fast = m_fast.PV("VAL", connect=False)
t3 = time.perf_counter()
assert pv_slow.connected
assert not pv_fast.connected
slow_time = t1 - t0
fast_time = t3 - t2
assert fast_time <= slow_time, (
f"Motor.PV custom ({fast_time:.6f}s) beaucoup plus lent que ({slow_time:.6f}s)"
)
def test_motor_init_list_attrs_created():
base_init = tuple(getattr(epics.Motor, "_init_list", ()))
base_init_wo_disabled = tuple(x for x in base_init if x != "disabled")
m = Motor("TEST:SIM:M10")
for attr in base_init_wo_disabled:
pv = m.PV(attr, connect=False)
assert isinstance(pv, PV), f"{attr} n'est pas un PV"
# Pas d'hypothèse forte sur l'état de connexion ici
def test_motor_extras_attrs_correct():
base_extras = dict(getattr(epics.Motor, "_extras", {}))
base_extras_wo_disabled = {k: v for k, v in base_extras.items() if k != "disabled"}
m = Motor("TEST:SIM:M11")
for key, suffix in base_extras_wo_disabled.items():
if hasattr(m, key):
pv = getattr(m, key)
assert isinstance(pv, PV)
assert pv.pvname == f"TEST:SIM:M11{suffix}"
def test_motor_callbacks_empty():
m = Motor("TEST:SIM:M12")
assert isinstance(m._callbacks, dict)
assert m._callbacks == {}