old_contents: import numpy
  
  from cupy import testing
  
  
  class TestBinaryRepr(testing.NumpyAliasBasicTestBase):
  
      func = 'isscalar'
  
  
  @testing.parameterize(
      *testing.product({
          'value': [
              0, 0.0, True,
              numpy.int32(1), numpy.array([1, 2], numpy.int32),
              numpy.complex(1), numpy.complex(1j), numpy.complex(1 + 1j),
              None, object(), 'abc', '', int, numpy.int32]}))
  class TestBinaryReprValues(testing.NumpyAliasValuesTestBase):
  
      func = 'isscalar'
  
      def setUp(self):
          self.args = (self.value,)
  
new_contents: import unittest
  
  import numpy
  
  from cupy import testing
  
  
  class TestIsScalar(testing.NumpyAliasBasicTestBase):
  
      func = 'isscalar'
  
  
  @testing.parameterize(
      *testing.product({
          'value': [
              0, 0.0, True,
              numpy.int32(1), numpy.array([1, 2], numpy.int32),
              numpy.complex(1), numpy.complex(1j), numpy.complex(1 + 1j),
              None, object(), 'abc', '', int, numpy.int32]}))
  class TestIsScalarValues(testing.NumpyAliasValuesTestBase):
  
      func = 'isscalar'
  
      def setUp(self):
          self.args = (self.value,)
  
  
  @testing.parameterize(
      *testing.product({
          'value': [
              # C and F
              numpy.ones(24, order='C'),
              # C and not F
              numpy.ones((4, 6), order='C'),
              # not C and F
              numpy.ones((4, 6), order='F'),
              # not C and not F
              numpy.ones((4, 6), order='C')[1:3][1:3],
          ]
      })
  )
  class TestIsFortran(unittest.TestCase):
  
      @testing.numpy_cupy_equal()
      def test(self, xp):
          return xp.isfortran(self.value)
  
  
  class TypeTestingTestBase(object):
  
      @testing.for_all_dtypes()
      @testing.numpy_cupy_array_equal()
      def test(self, xp, dtype):
          return getattr(xp, self.func)(xp.ones(5, dtype=dtype))
  
  
  class TypeTestingObjTestBase(object):
  
      @testing.for_all_dtypes()
      @testing.numpy_cupy_equal()
      def test(self, xp, dtype):
          return getattr(xp, self.func)(xp.ones(5, dtype=dtype))
  
  
  class TestIsComplex(TypeTestingTestBase, unittest.TestCase):
  
      func = 'iscomplex'
  
  
  class TestIsComplexObj(TypeTestingObjTestBase, unittest.TestCase):
  
      func = 'iscomplexobj'
  
  
  class TestIsReal(TypeTestingTestBase, unittest.TestCase):
  
      func = 'isreal'
  
  
  class TestIsRealObj(TypeTestingObjTestBase, unittest.TestCase):
  
      func = 'isrealobj'
  
subject: add tests