message: error message tests
diff: @@ -58,7 +58,7 @@ class MapOpsTest(test_util.TensorFlowTestCase, parameterized.TestCase):
  m = map_ops.empty_tensor_map()
  k = constant_op.constant(1.0)
  with self.assertRaisesRegex(errors.InvalidArgumentError,
  - "Trying to lookup non-existent key."):
  + "Trying to lookup non-existent key. *"):
  l = map_ops.tensor_map_lookup(m, k, dtypes.float32)
  self.evaluate(l)
  @@ -88,7 +88,7 @@ class MapOpsTest(test_util.TensorFlowTestCase, parameterized.TestCase):
  m = map_ops.empty_tensor_map()
  k = constant_op.constant(1.0)
  with self.assertRaisesRegex(errors.InvalidArgumentError,
  - "Trying to erase non-existent item."):
  + "Trying to erase non-existent item. *"):
  m = map_ops.tensor_map_erase(m, k, dtypes.float32)
  self.evaluate(m)
  @@ -99,7 +99,7 @@ class MapOpsTest(test_util.TensorFlowTestCase, parameterized.TestCase):
  v = constant_op.constant(2.0)
  m = map_ops.tensor_map_insert(m, k2, v)
  with self.assertRaisesRegex(errors.InvalidArgumentError,
  - "Trying to erase non-existent item."):
  + "Trying to erase non-existent item. *"):
  m = map_ops.tensor_map_erase(m, k, dtypes.float32)
  self.evaluate(m)
  