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Remove test that checked that multi-controlled global-phase decomposition raises a warning #1522

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Feb 14, 2025
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Remove test that checked that multi-controlled global-phase decomposition raises a warning #1522

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8 changes: 0 additions & 8 deletions frontend/test/pytest/test_quantum_control.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1666,14 +1666,6 @@ def test_decomposition_undefined(self):
with pytest.raises(DecompositionUndefinedError):
op.decomposition()

def test_global_phase_decomp_raises_warning(self):
"""Test that ctrl(GlobalPhase).decomposition() raises a warning."""
op = qml.ctrl(qml.GlobalPhase(1.23), control=[0, 1])
with pytest.warns(
UserWarning, match="Multi-Controlled-GlobalPhase currently decomposes to nothing"
):
assert op.decomposition() == []

def test_control_on_zero(self):
"""Test decomposition applies PauliX gates to flip any control-on-zero wires."""

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