def test_props(verbose=False):
sys = System()
box0 = PeriodicBox( Vector(10.0,10.0,10.0) )
box1 = PeriodicBox( Vector(20.0,20.0,20.0) )
if verbose:
print(box0)
print(box0.volume())
print(box1.volume())
assert(not sys.containsProperty("space"))
sys.add( InterCLJFF("cljff") )
if verbose:
print(sys)
print(sys.property("space"))
print(sys.userProperties().propertyKeys())
print(sys.builtinProperties().propertyKeys())
assert(sys.containsProperty("space"))
assert_equal( sys.property("space"), Cartesian() )
sys.setProperty( "space0", LinkToProperty("space", FFIdx(0)) )
if verbose:
print(sys.property("space0"))
assert(sys.containsProperty("space0"))
sys.setProperty("space0", box0)
if verbose:
print(sys.property("space"))
assert_equal(sys.property("space0"), box0)
sys.setProperty("space1", box1)
sys.setProperty("combined_space", CombineSpaces("space0", "space1"))
assert_equal(sys.property("space1"), box1)
if verbose:
print(sys.properties().propertyKeys())
print(sys.property("combined_space"))
print(sys.property("combined_space").volume())
assert_almost_equal( sys.property("combined_space").volume().value(),
sys.property("space0").volume().value() + sys.property("space1").volume().value(), 5 )
space3 = PeriodicBox( Vector(5,5,5) )
sys.setProperty("space0", space3)
assert_equal( sys.property("space0"), space3 )
if verbose:
print(sys.property("combined_space"))
print(sys.property("combined_space").volume())
assert_almost_equal( sys.property("combined_space").volume().value(),
sys.property("space0").volume().value() + sys.property("space1").volume().value(), 5 )
sys.removeProperty("space0")
if verbose:
print(sys.properties().propertyKeys())
assert( not sys.containsProperty("space0") )
print(sys)
print(sys.property("space"))
print(sys.userProperties().propertyKeys())
print(sys.builtinProperties().propertyKeys())
sys.setProperty("space0", LinkToProperty("space", FFIdx(0)))
print(sys.property("space0"))
sys.setProperty("space0", box0)
print(sys.property("space"))
sys.setProperty("space1", box1)
sys.setProperty("combined_space", CombineSpaces("space0", "space1"))
print(sys.properties().propertyKeys())
print(sys.property("combined_space"))
print(sys.property("combined_space").volume())
sys.setProperty("space0", PeriodicBox(Vector(5, 5, 5)))
print(sys.property("combined_space"))
print(sys.property("combined_space").volume())
sys.removeProperty("space0")
print(sys.properties().propertyKeys())
print(sys.property("space"))
print(sys.userProperties().propertyKeys())
print(sys.builtinProperties().propertyKeys())
sys.setProperty( "space0", LinkToProperty("space", FFIdx(0)) )
print(sys.property("space0"))
sys.setProperty("space0", box0)
print(sys.property("space"))
sys.setProperty("space1", box1)
sys.setProperty("combined_space", CombineSpaces("space0", "space1"))
print(sys.properties().propertyKeys())
print(sys.property("combined_space"))
print(sys.property("combined_space").volume())
sys.setProperty("space0", PeriodicBox( Vector(5,5,5) ) )
print(sys.property("combined_space"))
print(sys.property("combined_space").volume())
sys.removeProperty("space0")
print(sys.properties().propertyKeys())