Method assertNear

tensorflow/python/framework/test_util.py:2265–2280

Asserts that two floats are near each other. Checks that |f1 - f2| < err and asserts a test failure if not. Args: f1: A float value. f2: A float value. err: A float value. msg: An optional string message to append to the failure message.

(self, f1, f2, err, msg=None)

  # pylint: enable=invalid-name
  @py_func_if_in_function
  def assertNear(self, f1, f2, err, msg=None):
    """Asserts that two floats are near each other.

    Checks that |f1 - f2| < err and asserts a test failure
    if not.

    Args:
      f1: A float value.
      f2: A float value.
      err: A float value.
      msg: An optional string message to append to the failure message.
    """
    # f1 == f2 is needed here as we might have: f1, f2 = inf, inf
    self.assertTrue(
        f1 == f2 or math.fabs(f1 - f2) <= err, "%f != %f +/- %f%s" %
        (f1, f2, err, " (%s)" % msg if msg is not None else ""))

  @py_func_if_in_function
  def assertArrayNear(self, farray1, farray2, err, msg=None):