fix QPE test failure, add non-slow bloq example autotest

qualtran/bloqs/phase_estimation/qubitization_qpe.py

@@ -119,7 +119,7 @@ def decompose_from_registers(
         qpre_reg = quregs['qpe_reg']
 
         yield self.ctrl_state_prep.on(*qpre_reg)
-        yield walk_controlled.on_registers(**walk_regs, control=qpre_reg[-1])
+        yield walk_controlled.on_registers(**walk_regs, ctrl=qpre_reg[-1])
         walk = self.walk**2
         for i in range(self.m_bits - 2, -1, -1):
             yield reflect_controlled.on_registers(control=qpre_reg[i], **reflect_regs)
@@ -143,6 +143,16 @@ def __str__(self) -> str:
         return f'QubitizationQPE[{self.m_bits}]'
 
 
+@bloq_example
+def _qubitization_qpe_ising() -> QubitizationQPE:
+    from qualtran.bloqs.chemistry.ising.walk_operator import get_walk_operator_for_1d_ising_model
+    from qualtran.bloqs.phase_estimation import RectangularWindowState
+
+    walk, _ = get_walk_operator_for_1d_ising_model(4, 0.1)
+    qubitization_qpe_ising = QubitizationQPE(walk, RectangularWindowState(4))
+    return qubitization_qpe_ising
+
+
 @bloq_example
 def _qubitization_qpe_hubbard_model_small() -> QubitizationQPE:
     import numpy as np
@@ -252,5 +262,6 @@ def _qubitization_qpe_sparse_chem() -> QubitizationQPE:
         _qubitization_qpe_hubbard_model_small,
         _qubitization_qpe_sparse_chem,
         _qubitization_qpe_chem_thc,
+        _qubitization_qpe_ising,
     ),
 )

qualtran/bloqs/phase_estimation/qubitization_qpe_test.py

@@ -21,6 +21,7 @@
 from qualtran.bloqs.phase_estimation.qubitization_qpe import (
     _qubitization_qpe_chem_thc,
     _qubitization_qpe_hubbard_model_small,
+    _qubitization_qpe_ising,
     _qubitization_qpe_sparse_chem,
     QubitizationQPE,
 )
@@ -29,6 +30,10 @@
 from qualtran.testing import execute_notebook
 
 
+def test_ising_example(bloq_autotester):
+    bloq_autotester(_qubitization_qpe_ising)
+
+
 @pytest.mark.slow
 def test_qubitization_qpe_bloq_autotester(bloq_autotester):
     bloq_autotester(_qubitization_qpe_hubbard_model_small)

qualtran/conftest.py

@@ -88,6 +88,7 @@ def assert_bloq_example_serializes_for_pytest(bloq_ex: BloqExample):
         'qubitization_qpe_chem_thc',  # too slow
         'walk_op_chem_sparse',
         'qubitization_qpe_sparse_chem',  # too slow
+        'qubitization_qpe_ising',
         'trott_unitary',
         'symbolic_hamsim_by_gqsp',
         'gf16_addition',  # cannot serialize QGF