fixed import formatting, black and flake8 checks

tests/test_upper.py

@@ -1,10 +1,7 @@
 import pytest
 
 import arrayfire_wrapper.dtypes as dtypes
-from arrayfire_wrapper.lib.create_and_modify_array.create_array.constant import constant
-from arrayfire_wrapper.lib.create_and_modify_array.create_array.diag import diag_extract
-from arrayfire_wrapper.lib.create_and_modify_array.create_array.upper import upper
-from arrayfire_wrapper.lib.create_and_modify_array.manage_array import get_scalar
+import arrayfire_wrapper.lib as wrapper
 
 
 @pytest.mark.parametrize(
@@ -18,11 +15,11 @@
 def test_diag_is_unit(shape: tuple) -> None:
     """Test if when is_unit_diag in lower returns an array with a unit diagonal"""
     dtype = dtypes.s64
-    constant_array = constant(3, shape, dtype)
+    constant_array = wrapper.constant(3, shape, dtype)
 
-    lower_array = upper(constant_array, True)
-    diagonal = diag_extract(lower_array, 0)
-    diagonal_value = get_scalar(diagonal, dtype)
+    lower_array = wrapper.upper(constant_array, True)
+    diagonal = wrapper.diag_extract(lower_array, 0)
+    diagonal_value = wrapper.get_scalar(diagonal, dtype)
 
     assert diagonal_value == 1
 
@@ -38,11 +35,11 @@ def test_diag_is_unit(shape: tuple) -> None:
 def test_is_original(shape: tuple) -> None:
     """Test if is_original keeps the diagonal the same as the original array"""
     dtype = dtypes.s64
-    constant_array = constant(3, shape, dtype)
-    original_value = get_scalar(constant_array, dtype)
+    constant_array = wrapper.constant(3, shape, dtype)
+    original_value = wrapper.get_scalar(constant_array, dtype)
 
-    lower_array = upper(constant_array, False)
-    diagonal = diag_extract(lower_array, 0)
-    diagonal_value = get_scalar(diagonal, dtype)
+    lower_array = wrapper.upper(constant_array, False)
+    diagonal = wrapper.diag_extract(lower_array, 0)
+    diagonal_value = wrapper.get_scalar(diagonal, dtype)
 
     assert original_value == diagonal_value