def test_convert_complex(self):
"""Verify that real and complex ParameterExpressions are supported."""
param = Parameter('test')
self.assertEqual(IQXJsonEncoder().default(param.bind({param: 0.2})), 0.2)
val = IQXJsonEncoder().default(param.bind({param: 0.2+0.1j}))
self.assertEqual(val[0], 0.2)
self.assertEqual(val[1], 0.1)
def test_is_parameterized(self):
"""Test checking if a gate is parameterized (bound/unbound)"""
from qiskit.circuit.library.standard_gates.h import HGate
from qiskit.circuit.library.standard_gates.rx import RXGate
theta = Parameter('θ')
rxg = RXGate(theta)
self.assertTrue(rxg.is_parameterized())
theta_bound = theta.bind({theta: 3.14})
rxg = RXGate(theta_bound)
self.assertFalse(rxg.is_parameterized())
h_gate = HGate()
self.assertFalse(h_gate.is_parameterized())
def test_cast_to_int_when_bound(self):
"""Verify expression can be cast to an int when fully bound."""
x = Parameter('x')
bound_expr = x.bind({x: 2.3})
self.assertEqual(int(bound_expr), 2)
