use multi-frame data set for flyback test

tests/test_sparse_array.py

@@ -710,11 +710,15 @@ def compare_with_sparse(full, sparse):
     assert np.array_equal(m_array[[False, True], 0][0], position_one)
 
 
-def test_keep_flyback(electron_data_small):
-    flyback = SparseArray.from_hdf5(electron_data_small, keep_flyback=True)
-    assert flyback.scan_shape[1] == 50
-    no_flyback = SparseArray.from_hdf5(electron_data_small, keep_flyback=False)
-    assert no_flyback.scan_shape[1] == 49
+def test_keep_flyback(cropped_multi_frames_v3):
+    # Test keeping the flyback
+    flyback = SparseArray.from_hdf5(cropped_multi_frames_v3, keep_flyback=True)
+    assert flyback.scan_shape[1] == 20
+    assert flyback.num_frames_per_scan = 2
+    # Test removing the flyback
+    no_flyback = SparseArray.from_hdf5(cropped_multi_frames_v3, keep_flyback=False)
+    assert no_flyback.scan_shape[1] == 19
+    assert flyback.num_frames_per_scan = 2
 
 # Test binning until this number
 TEST_BINNING_UNTIL = 33