class TestCubicPhase:
"""Tests for cubic phase function"""
gamma = 0.242
H, t = cubic_phase(gamma)
def test_identity(self):
"""Test alpha=0 gives identity"""
_, t = cubic_phase(0)
assert t == 0
def test_hermitian(self, hbar):
"""Test output is hermitian"""
assert is_hermitian(self.H)
assert is_hermitian(get_boson_operator(self.H, hbar=hbar))
def test_gaussian(self):
"""Test output is gaussian"""
res = self.H.is_gaussian()
assert not res
def test_time(self):
"""Test time parameter is correct"""
assert self.t == self.gamma
def test_identity(self):
"""Test alpha=0 gives identity"""
self.logTestName()
_, t = cubic_phase(0)
self.assertEqual(t, 0)
def setUp(self):
"""Parameters"""
self.hbar = 2
self.gamma = 0.242
self.H, self.t = cubic_phase(self.gamma)
def test_identity(self):
"""Test alpha=0 gives identity"""
_, t = cubic_phase(0)
assert t == 0