EBR-43: refactor code

tvbwidgets/tests/ts/test_data_wrappers.py

@@ -18,7 +18,7 @@
 @pytest.fixture
 def wrapper_np():
     """ Returns an initialized Numpy wrapper with 3 dimensions """
-    rng = np.random.default_rng()
+    rng = np.random.default_rng(50)
     numpy_array = rng.random(size=(30000, 4, 50))
     wrapper_np = WrapperNumpy(numpy_array, 0.01, ch_idx=2)
     return wrapper_np

tvbwidgets/tests/ts/test_mne_widget.py

@@ -105,7 +105,7 @@ def test_create_channel_selection_area(tsw_tvb_data):
 
 def test_dimensions_selection_update(tsw_tvb_data):
     # simulate unchecking of some checkboxes
-    rng = np.random.default_rng()
+    rng = np.random.default_rng(50)
     false_cb_idx = list(rng.choice(76, size=3, replace=False))
     false_cb_names = [f'sig {x}' for x in false_cb_idx]
     for cb_name in false_cb_names:

tvbwidgets/tests/ts/ts_generator.py

@@ -97,7 +97,7 @@ def generate_ts_with_mode_and_sv(length=5e3, cutoff=500, conn=None):
 
 def _generate_connectivity(no_of_regions):
     labels = np.array(['sig ' + str(i) for i in range(no_of_regions)])
-    rng = np.random.default_rng()
+    rng = np.random.default_rng(50)
     conn = connectivity.Connectivity(centres=rng.random(size=(no_of_regions, 3)),
                                      region_labels=labels,
                                      weights=rng.random(size=(no_of_regions, no_of_regions)),