def test_ee_image():
g = TransitionSystem()
g.vars = dict(x='bool')
g.env_vars = {'x'}
g.add_edge(0, 1, formula='x')
g.add_edge(0, 1, formula=' ~ x')
g.add_edge(0, 2, formula='x')
aut = logicizer.graph_to_logic(g, 'pc', True)
source = aut.add_expr('pc = 0')
u = fx.ee_image(source, aut)
u_ = aut.add_expr('(pc = 1) \/ (pc = 2)')
assert u == u_, _to_expr(u, aut)
def test_ee_image():
g = TransitionSystem()
g.vars = dict(x='bool')
g.env_vars = {'x'}
g.add_edge(0, 1, formula='x')
g.add_edge(0, 1, formula=' ~ x')
g.add_edge(0, 2, formula='x')
aut = logicizer.graph_to_logic(g, 'pc', True)
source = aut.add_expr('pc = 0')
u = fx.ee_image(source, aut)
u_ = aut.add_expr('(pc = 1) \/ (pc = 2)')
assert u == u_, _to_expr(u, aut)
def test_ue_image_no_constrain():
g = TransitionSystem()
g.vars = dict(x='bool')
g.env_vars = {'x'}
g.add_edge(0, 1, formula='x')
g.add_edge(0, 2, formula=' ~ x')
aut = logicizer.graph_to_logic(g, 'pc', True)
# source constrained to x
source = aut.add_expr('x /\ (pc = 0)')
u = fx.ee_image(source, aut)
assert u == aut.add_expr('pc = 1')
# source contains both x and ~ x
source = aut.add_expr('pc = 0')
u = fx.ee_image(source, aut)
assert u == aut.add_expr('(pc = 1) \/ (pc = 2)')
def test_ue_image_no_constrain():
g = TransitionSystem()
g.vars = dict(x='bool')
g.env_vars = {'x'}
g.add_edge(0, 1, formula='x')
g.add_edge(0, 2, formula=' ~ x')
aut = logicizer.graph_to_logic(g, 'pc', True)
# source constrained to x
source = aut.add_expr('x /\ (pc = 0)')
u = fx.ee_image(source, aut)
assert u == aut.add_expr('pc = 1')
# source contains both x and ~ x
source = aut.add_expr('pc = 0')
u = fx.ee_image(source, aut)
assert u == aut.add_expr('(pc = 1) \/ (pc = 2)')
