# Copyright 2020 The TensorFlow Authors. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# ==============================================================================
"""Tests for conditional_expressions module."""

import unittest

from nvidia.dali._autograph.operators import conditional_expressions


def _basic_expr(cond):
  return conditional_expressions.if_exp(
      cond,
      lambda: 1,
      lambda: 2,
      'cond')


class IfExpTest(unittest.TestCase):

  def test_python(self):
    self.assertEqual(_basic_expr(True), 1)
    self.assertEqual(_basic_expr(False), 2)
    self.assertEqual(
        conditional_expressions.if_exp(True, lambda: 1, lambda: 2, ''), 1)
    self.assertEqual(
        conditional_expressions.if_exp(False, lambda: 1, lambda: 2, ''), 2)
