old_contents: import unittest
  
  import numpy
  
  from cupy import testing
  
  
  @testing.gpu
  class TestContent(unittest.TestCase):
  
      @testing.for_dtypes('efFdD')
      @testing.numpy_cupy_array_equal()
      def check_unary_inf(self, name, xp, dtype):
          a = xp.array([-3, numpy.inf, -1, -numpy.inf, 0, 1, 2],
                       dtype=dtype)
          return getattr(xp, name)(a)
  
      @testing.for_dtypes('efFdD')
      @testing.numpy_cupy_array_equal()
      def check_unary_nan(self, name, xp, dtype):
          a = xp.array(
              [-3, numpy.NAN, -1, numpy.NAN, 0, numpy.NAN, numpy.inf],
              dtype=dtype)
          return getattr(xp, name)(a)
  
      def test_isfinite(self):
          self.check_unary_inf('isfinite')
  
      def test_isinf(self):
          self.check_unary_inf('isinf')
  
      def test_isnan(self):
          self.check_unary_nan('isnan')
  
  
  @testing.gpu
  class TestUfuncLike(unittest.TestCase):
  
      @testing.for_dtypes('efd')
      @testing.numpy_cupy_array_equal()
      def check_unary(self, name, xp, dtype):
          a = xp.array([-3, numpy.inf, -1, -numpy.inf, 0, 1, 2],
                      dtype=dtype)
          return getattr(xp, name)(a)
  
      def test_isneginf(self):
          self.check_unary('isneginf')
  
      def test_isposinf(self):
          self.check_unary('isposinf')
  
new_contents: import unittest
  
  import numpy
  
  from cupy import testing
  
  
  @testing.gpu
  class TestContent(unittest.TestCase):
  
      @testing.for_dtypes('efFdD')
      @testing.numpy_cupy_array_equal()
      def check_unary_inf(self, name, xp, dtype):
          a = xp.array([-3, numpy.inf, -1, -numpy.inf, 0, 1, 2],
                       dtype=dtype)
          return getattr(xp, name)(a)
  
      @testing.for_dtypes('efFdD')
      @testing.numpy_cupy_array_equal()
      def check_unary_nan(self, name, xp, dtype):
          a = xp.array(
              [-3, numpy.NAN, -1, numpy.NAN, 0, numpy.NAN, numpy.inf],
              dtype=dtype)
          return getattr(xp, name)(a)
  
      def test_isfinite(self):
          self.check_unary_inf('isfinite')
  
      def test_isinf(self):
          self.check_unary_inf('isinf')
  
      def test_isnan(self):
          self.check_unary_nan('isnan')
  
  
  @testing.gpu
  class TestUfuncLike(unittest.TestCase):
  
      @testing.for_dtypes('efd')
      @testing.numpy_cupy_array_equal()
      def check_unary(self, name, xp, dtype):
          a = xp.array([-3, numpy.inf, -1, -numpy.inf, 0, 1, 2],
                       dtype=dtype)
          return getattr(xp, name)(a)
  
      def test_isneginf(self):
          self.check_unary('isneginf')
  
      def test_isposinf(self):
          self.check_unary('isposinf')
  
subject: fix under-indentation