chore: import upstream snapshot with attribution

test/dygraph_to_static/test_assert.py

@@ -0,0 +1,91 @@
+#   Copyright (c) 2020 PaddlePaddle 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.
+
+import unittest
+
+import numpy
+from dygraph_to_static_utils import (
+    Dy2StTestBase,
+    enable_to_static_guard,
+)
+
+import paddle
+from paddle import base
+
+
+def dyfunc_assert_variable(x):
+    x_v = paddle.to_tensor(x)
+    assert x_v
+
+
+def dyfunc_assert_non_variable(x=True):
+    assert x
+
+
+class TestAssertVariable(Dy2StTestBase):
+    def _run(self, func, x, with_exception, to_static):
+        with enable_to_static_guard(to_static):
+            if with_exception:
+                with (
+                    self.assertRaises(BaseException),  # noqa: B017
+                    base.dygraph.guard(),
+                ):
+                    func(x)
+            else:
+                with base.dygraph.guard():
+                    func(x)
+
+    def _run_dy_static(self, func, x, with_exception):
+        self._run(func, x, with_exception, True)
+        self._run(func, x, with_exception, False)
+
+    def test_non_variable(self):
+        self._run_dy_static(
+            paddle.jit.to_static(dyfunc_assert_non_variable),
+            x=False,
+            with_exception=True,
+        )
+        self._run_dy_static(
+            paddle.jit.to_static(dyfunc_assert_non_variable),
+            x=True,
+            with_exception=False,
+        )
+
+    def test_bool_variable(self):
+        self._run_dy_static(
+            paddle.jit.to_static(dyfunc_assert_variable),
+            x=numpy.array([False]),
+            with_exception=True,
+        )
+        self._run_dy_static(
+            paddle.jit.to_static(dyfunc_assert_variable),
+            x=numpy.array([True]),
+            with_exception=False,
+        )
+
+    def test_int_variable(self):
+        self._run_dy_static(
+            paddle.jit.to_static(dyfunc_assert_variable),
+            x=numpy.array([0]),
+            with_exception=True,
+        )
+        self._run_dy_static(
+            paddle.jit.to_static(dyfunc_assert_variable),
+            x=numpy.array([1]),
+            with_exception=False,
+        )
+
+
+if __name__ == '__main__':
+    unittest.main()