[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

Author: pre-commit-ci[bot]

projectq/tests/PhaseAgnosticStateComparator.py

@@ -1,8 +1,10 @@
 import numpy as np
+
 from projectq import MainEngine
-from projectq.ops import H, CNOT
+from projectq.ops import CNOT, H
 from projectq.tests.helpers import PhaseAgnosticStateComparator
 
+
 def test_hadamard_twice():
     eng = MainEngine()
     q = eng.allocate_qureg(1)
@@ -14,13 +16,14 @@ def test_hadamard_twice():
     comparator = PhaseAgnosticStateComparator()
     comparator.compare(actual, expected)
 
+
 def test_bell_state():
     eng = MainEngine()
     q = eng.allocate_qureg(2)
     H | q[0]
     CNOT | (q[0], q[1])
     eng.flush()
     _, actual = eng.backend.cheat()
-    expected = np.array([1/np.sqrt(2), 0, 0, 1/np.sqrt(2)], dtype=complex)
+    expected = np.array([1 / np.sqrt(2), 0, 0, 1 / np.sqrt(2)], dtype=complex)
     comparator = PhaseAgnosticStateComparator()
-    comparator.compare(actual, expected)
+    comparator.compare(actual, expected)

projectq/tests/helpers.py

@@ -1,5 +1,6 @@
 import numpy as np
 
+
 class PhaseAgnosticStateComparator:
     def __init__(self, tol=1e-8):
         self.tol = tol
@@ -47,6 +48,4 @@ def compare(self, actual, expected):
         else:
             for i in range(actual.shape[0]):
                 if not np.allclose(aligned[i], expected[i], atol=self.tol):
-                    raise AssertionError(
-                        f"State {i} differs:\nAligned: {aligned[i]}\nExpected: {expected[i]}"
-                    )
+                    raise AssertionError(f"State {i} differs:\nAligned: {aligned[i]}\nExpected: {expected[i]}")