def test_cnot_gate():
"""Test the CNOT gate."""
circuit = CNotGate(1, 0)
assert represent(circuit, nqubits=2) == \
Matrix([[1, 0, 0, 0], [0, 1, 0, 0], [0, 0, 0, 1], [0, 0, 1, 0]])
circuit = circuit * Qubit('111')
assert matrix_to_qubit(represent(circuit, nqubits=3)) == \
qapply(circuit)
circuit = CNotGate(1, 0)
assert Dagger(circuit) == circuit
assert Dagger(Dagger(circuit)) == circuit
assert circuit * circuit == 1
def test_gate():
a, b, c, d = symbols('a,b,c,d')
uMat = Matrix([[a, b], [c, d]])
q = Qubit(1, 0, 1, 0, 1)
g1 = IdentityGate(2)
g2 = CGate((3, 0), XGate(1))
g3 = CNotGate(1, 0)
g4 = UGate((0, ), uMat)
assert str(g1) == '1(2)'
assert pretty(g1) == '1 \n 2'
assert upretty(g1) == u'1 \n 2'
assert latex(g1) == r'1_{2}'
sT(g1, "IdentityGate(Integer(2))")
assert str(g1 * q) == '1(2)*|10101>'
ascii_str = \
"""\
1 *|10101>\n\
2 \
"""
ucode_str = \
u"""\
1 ⋅❘10101⟩\n\
2 \
"""
assert pretty(g1 * q) == ascii_str
assert upretty(g1 * q) == ucode_str
assert latex(g1 * q) == r'1_{2} {\left|10101\right\rangle }'
sT(
g1 * q,
"Mul(IdentityGate(Integer(2)), Qubit(Integer(1),Integer(0),Integer(1),Integer(0),Integer(1)))"
)
assert str(g2) == 'C((3,0),X(1))'
ascii_str = \
"""\
C /X \\\n\
3,0\\ 1/\
"""
ucode_str = \
u"""\
C ⎛X ⎞\n\
3,0⎝ 1⎠\
"""
assert pretty(g2) == ascii_str
assert upretty(g2) == ucode_str
assert latex(g2) == r'C_{3,0}{\left(X_{1}\right)}'
sT(g2, "CGate(Tuple(Integer(3), Integer(0)),XGate(Integer(1)))")
assert str(g3) == 'CNOT(1,0)'
ascii_str = \
"""\
CNOT \n\
1,0\
"""
ucode_str = \
u"""\
CNOT \n\
1,0\
"""
assert pretty(g3) == ascii_str
assert upretty(g3) == ucode_str
assert latex(g3) == r'CNOT_{1,0}'
sT(g3, "CNotGate(Integer(1),Integer(0))")
# str(g4) Fails
#assert str(g4) == ''
ascii_str = \
"""\
U \n\
0\
"""
ucode_str = \
u"""\
U \n\
0\
"""
assert pretty(g4) == ascii_str
assert upretty(g4) == ucode_str
assert latex(g4) == r'U_{0}'
sT(
g4,
"UGate(Tuple(Integer(0)),MutableDenseMatrix([[Symbol('a'), Symbol('b')], [Symbol('c'), Symbol('d')]]))"
)
def test_sympy__physics__quantum__gate__CNotGate():
from sympy.physics.quantum.gate import CNotGate
assert _test_args(CNotGate(0, 1))
def test_gate():
a, b, c, d = symbols("a,b,c,d")
uMat = Matrix([[a, b], [c, d]])
q = Qubit(1, 0, 1, 0, 1)
g1 = IdentityGate(2)
g2 = CGate((3, 0), XGate(1))
g3 = CNotGate(1, 0)
g4 = UGate((0, ), uMat)
assert str(g1) == "1(2)"
assert pretty(g1) == "1 \n 2"
assert upretty(g1) == u"1 \n 2"
assert latex(g1) == r"1_{2}"
sT(g1, "IdentityGate(Integer(2))")
assert str(g1 * q) == "1(2)*|10101>"
ascii_str = """\
1 *|10101>\n\
2 \
"""
ucode_str = u("""\
1 ⋅❘10101⟩\n\
2 \
""")
assert pretty(g1 * q) == ascii_str
assert upretty(g1 * q) == ucode_str
assert latex(g1 * q) == r"1_{2} {\left|10101\right\rangle }"
sT(
g1 * q,
"Mul(IdentityGate(Integer(2)), Qubit(Integer(1),Integer(0),Integer(1),Integer(0),Integer(1)))",
)
assert str(g2) == "C((3,0),X(1))"
ascii_str = """\
C /X \\\n\
3,0\\ 1/\
"""
ucode_str = u("""\
C ⎛X ⎞\n\
3,0⎝ 1⎠\
""")
assert pretty(g2) == ascii_str
assert upretty(g2) == ucode_str
assert latex(g2) == r"C_{3,0}{\left(X_{1}\right)}"
sT(g2, "CGate(Tuple(Integer(3), Integer(0)),XGate(Integer(1)))")
assert str(g3) == "CNOT(1,0)"
ascii_str = """\
CNOT \n\
1,0\
"""
ucode_str = u("""\
CNOT \n\
1,0\
""")
assert pretty(g3) == ascii_str
assert upretty(g3) == ucode_str
assert latex(g3) == r"CNOT_{1,0}"
sT(g3, "CNotGate(Integer(1),Integer(0))")
ascii_str = """\
U \n\
0\
"""
ucode_str = u("""\
U \n\
0\
""")
assert (str(g4) == """\
U((0,),Matrix([\n\
[a, b],\n\
[c, d]]))\
""")
assert pretty(g4) == ascii_str
assert upretty(g4) == ucode_str
assert latex(g4) == r"U_{0}"
sT(
g4,
"UGate(Tuple(Integer(0)),MutableDenseMatrix([[Symbol('a'), Symbol('b')], [Symbol('c'), Symbol('d')]]))",
)