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[testing] Fix Infleqtion tests for state prep #4323

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Merged
khalatepradnya merged 5 commits into from
Apr 28, 2026
Merged

[testing] Fix Infleqtion tests for state prep #4323

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7de33a4
[testing] Fix Infleqtion tests for state prep
khalatepradnya Apr 14, 2026
66e0c0b
Merge branch 'main' into fix-infleqtion-tests
khalatepradnya Apr 14, 2026
5a07791
* Addressing review comments
khalatepradnya Apr 14, 2026
e93dffd
Merge branch 'main' into fix-infleqtion-tests
khalatepradnya Apr 17, 2026
8a014cc
Make the tolerance align with values seen in practice
khalatepradnya Apr 17, 2026
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21 changes: 9 additions & 12 deletions python/tests/backends/test_Infleqtion.py
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Original file line number Diff line number Diff line change
Expand Up @@ -24,8 +24,8 @@ def set_up_target():
cudaq.reset_target()


def assert_close(got) -> bool:
return got < -1.5 and got > -1.9
def assert_close(want, got, tolerance=1.0e-5) -> bool:
return abs(want - got) < tolerance


def test_simple_kernel():
Expand Down Expand Up @@ -179,31 +179,28 @@ def kernel2(s: cudaq.State):


def test_state_preparation():
shots = 10000
shots = 100
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@cudaq.kernel
def kernel(vec: list[complex]):
qubits = cudaq.qvector(vec)

state = [1. / np.sqrt(2.), 1. / np.sqrt(2.), 0., 0.]
counts = cudaq.sample(kernel, state, shots_count=shots)
assert assert_close(counts["00"], shots / 2, 2)
assert assert_close(counts["10"], shots / 2, 2)
assert assert_close(counts["01"], 0., 2)
assert assert_close(counts["11"], 0., 2)
counts.dump()
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assert assert_close(shots / 2, counts["00"], shots / 10)
assert assert_close(shots / 2, counts["10"], shots / 10)


def test_state_preparation_builder():
shots = 10000
shots = 100
kernel, state = cudaq.make_kernel(list[complex])
qubits = kernel.qalloc(state)

state = [1. / np.sqrt(2.), 1. / np.sqrt(2.), 0., 0.]
counts = cudaq.sample(kernel, state, shots_count=shots)
assert assert_close(counts["00"], shots / 2, 2)
assert assert_close(counts["10"], shots / 2, 2)
assert assert_close(counts["01"], 0., 2)
assert assert_close(counts["11"], 0., 2)
assert assert_close(shots / 2, counts["00"], shots / 10)
assert assert_close(shots / 2, counts["10"], shots / 10)


def test_exp_pauli():
Expand Down
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