fixing tests/examples backend name

examples/reuploading_classifier/qlassifier.py

@@ -119,7 +119,7 @@ def minimize(self, method='BFGS', options=None, compile=True):
             from qibo import K
             circuit = self.circuit(self.training_set[0])
             for gate in circuit.queue:
-                if K.name not in {"tensorflow_defaulteinsum", "tensorflow_matmuleinsum"}:
+                if K.name != "tensorflow":
                     from qibo.config import raise_error
                     raise_error(RuntimeError,
                                 'SGD VQE requires native Tensorflow '

src/qibo/tests/test_evolution.py

@@ -326,7 +326,7 @@ def test_scheduling_optimization(method, options, messages, trotter, filename):
 
     if method == "sgd":
         from qibo import K
-        if K.name not in {"tensorflow_defaulteinsum", "tensorflow_matmuleinsum"}:
+        if K.name != "tensorflow":
             with pytest.raises(RuntimeError):
                 best, params, _ = adevp.minimize([0.5, 1], method=method, options=options,
                                 messages=messages)

src/qibo/tests_new/test_models_variational.py

@@ -94,7 +94,7 @@ def test_vqe(backend, method, options, compile, filename):
     """Performs a VQE circuit minimization test."""
     original_backend = qibo.get_backend()
     original_threads = qibo.get_threads()
-    if (method == "sgd" or compile) and backend != "tensorflow_matmuleinsum":
+    if (method == "sgd" or compile) and backend != "tensorflow":
         pytest.skip("Skipping SGD test for unsupported backend.")
     qibo.set_backend(backend)
 
@@ -281,7 +281,7 @@ def test_qaoa_errors():
 @pytest.mark.parametrize(test_names, test_values)
 def test_qaoa_optimization(backend, method, options, trotter, filename):
     original_backend = qibo.get_backend()
-    if method == "sgd" and backend != "tensorflow_matmuleinsum":
+    if method == "sgd" and backend != "tensorflow":
         pytest.skip("Skipping SGD test for unsupported backend.")
     qibo.set_backend(backend)
     h = hamiltonians.XXZ(3, trotter=trotter)