Add the pytest function for MPS in cuquantum.

src/qibotn/QiboCircuitToMPS.py

@@ -2,14 +2,15 @@ import cupy as cp
 import numpy as np
 
 from cuquantum import cutensornet as cutn
-from QiboCircuitConvertor import QiboCircuitToEinsum
-from MPSUtils import get_initial_mps, apply_gate
+from qibotn.QiboCircuitConvertor import QiboCircuitToEinsum
+from qibotn.MPSUtils import get_initial_mps, apply_gate
+
 
 class QiboCircuitToMPS:
-    def __init__(self,circ_qibo, gate_algo, dtype = 'complex128',rand_seed=0,):
+    def __init__(self, circ_qibo, gate_algo, dtype='complex128', rand_seed=0,):
         np.random.seed(rand_seed)
         cp.random.seed(rand_seed)
-        
+
         self.num_qubits = circ_qibo.nqubits
         self.handle = cutn.create()
         self.options = {'handle': self.handle}
@@ -20,7 +21,8 @@ class QiboCircuitToMPS:
         for (gate, qubits) in circuitconvertor.gate_tensors:
             # mapping from qubits to qubit indices
             # apply the gate in-place
-            apply_gate(self.mps_tensors, gate, qubits, algorithm=gate_algo, options=self.options)
+            apply_gate(self.mps_tensors, gate, qubits,
+                       algorithm=gate_algo, options=self.options)
 
     def __del__(self):
         cutn.destroy(self.handle)