Remove execute method from tests (#140)

* replace execute by run

* transpile qiskit circuits to be compatible with BasicAer

tests/providers/test_adapter.py

@@ -6,7 +6,13 @@
 
 import numpy as np
 
-from qiskit import QuantumCircuit, execute, BasicAer, QuantumRegister, ClassicalRegister
+from qiskit import (
+    QuantumCircuit,
+    BasicAer,
+    QuantumRegister,
+    ClassicalRegister,
+    transpile,
+)
 from qiskit.circuit import Parameter
 from qiskit.circuit.library import PauliEvolutionGate
 from qiskit.quantum_info import SparsePauliOp
@@ -173,7 +179,7 @@ def test_u_gate(self):
         device = LocalSimulator()
         qiskit_circuit.u(np.pi / 2, np.pi / 3, np.pi / 4, 0)
 
-        job = execute(qiskit_circuit, backend)
+        job = backend.run(qiskit_circuit)
 
         braket_circuit = convert_qiskit_to_braket_circuit(qiskit_circuit)
         braket_circuit.state_vector()  # pylint: disable=no-member
@@ -204,7 +210,8 @@ def test_standard_gate_decomp(self):
                 braket_job = backend.run(qiskit_circuit, shots=1000)
                 braket_result = braket_job.result().get_counts()
 
-                qiskit_job = execute(qiskit_circuit, aer_backend, shots=1000)
+                transpiled_circuit = transpile(qiskit_circuit, backend=aer_backend)
+                qiskit_job = aer_backend.run(transpiled_circuit, shots=1000)
                 qiskit_result = qiskit_job.result().get_counts()
 
                 combined_results = combine_dicts(
@@ -243,7 +250,8 @@ def test_exponential_gate_decomp(self):
         braket_job = backend.run(qiskit_circuit, shots=1000)
         braket_result = braket_job.result().get_counts()
 
-        qiskit_job = execute(qiskit_circuit, aer_backend, shots=1000)
+        transpiled_circuit = transpile(qiskit_circuit, backend=aer_backend)
+        qiskit_job = aer_backend.run(transpiled_circuit, shots=1000)
         qiskit_result = qiskit_job.result().get_counts()
 
         combined_results = combine_dicts(