small changes

Author: skushnir123

qhdopt/utils/decoding_utils.py

@@ -2,7 +2,6 @@
 def spin_to_bitstring(spin_list):
     # spin_list is a dict
     list_len = len(spin_list)
-    binary_vec = np.empty((list_len))
     bitstring = []
     for k in np.arange(list_len):
         if spin_list[k] == 1:

tests/test_backend.py

@@ -7,14 +7,14 @@ def test_backend_performance():
     Q = [[-2, 1],
          [1, -1]]
     bt = [3 / 4, -1 / 4]
-    sol = -.75
+    minimum = -.75
     model = QHD.QP(Q, bt)
     response = model.classically_optimize(solver="TNC", verbose=1)
-    assert abs(response.minimum - sol) < 1e-3
+    assert abs(response.minimum - minimum) < 1e-3
 
     model.qutip_setup(resolution=6, time_discretization=40)
     model.optimize(verbose=1)
-    assert abs(response.minimum - sol) < 1e-3
+    assert abs(response.minimum - minimum) < 1e-3
     model.ionq_setup(resolution=6, api_key='ionq_API_key', time_discretization=5,
                      shots=1000, on_simulator=True)
     ionq_backend = model.compile_only()

tests/test_decoding_utils.py

@@ -0,0 +1,7 @@
+from qhdopt.utils.decoding_utils import spin_to_bitstring
+
+
+def test_spin_to_bitstring():
+    spin_list = [-1, 1, 1, 1, -1, -1]
+    assert spin_to_bitstring(spin_list) == [1, 0, 0, 0, 1, 1]
+