code: def setUp(self):
      super().setUp()
      self.preds = jnp.array([1.0, 1.0, 0.0, 0.0, 0.5, 0.5])
      self.targets = jnp.array([1.0, 0.0, 0.0, 1.0, 1.0, 0])
      self.expected = jnp.array(
          [0.0, np.inf, 0.0, np.inf, 0.6931472, 0.6931472]
      )
  
imports: import functools
  from absl.testing import absltest
  from absl.testing import parameterized
  import chex
  import jax
  import jax.numpy
  import numpy
  from rlax._src import losses
label_desc: Use image node_id 1 for calling the LogLossTest obj's underlying member method code with example usage: obj.setUp() without return types