message: reduce num_epochs and num_outputs in map_test
diff: @@ -1407,7 +1407,7 @@ class MapDatasetCheckpointTest(checkpoint_test_base.CheckpointTestBase,
  def setUp(self):
  self._tensor_slice_len = 7
  - self._num_epochs = 14
  + self._num_epochs = 7
  self._num_outputs = self._tensor_slice_len * self._num_epochs
  def _build_ds(self, multiplier=37.0):
  @@ -1452,17 +1452,18 @@ class MapDatasetCheckpointTest(checkpoint_test_base.CheckpointTestBase,
  @combinations.generate(test_base.default_test_combinations())
  def testCaptureConstantInMapFn(self):
  + num_outputs = 10
  def _build_ds():
  constant_var = constant_op.constant(5)
  return (dataset_ops.Dataset.from_tensors(0).repeat(10).map(
  lambda x: x + constant_var))
  - self.run_core_tests(_build_ds, 10)
  + self.run_core_tests(_build_ds, num_outputs)
  @combinations.generate(test_base.default_test_combinations())
  def testCaptureDefunInMapFn(self):
  - num_outputs = 100
  + num_outputs = 10
  def _build_ds():
  @@ -1476,7 +1477,7 @@ class MapDatasetCheckpointTest(checkpoint_test_base.CheckpointTestBase,
  @combinations.generate(test_base.default_test_combinations())
  def testBuildDefunInMapFn(self):
  - num_outputs = 100
  + num_outputs = 10
  def _build_ds():
  