Switch some dy2st UT to eager mode (#41255)

python/paddle/fluid/tests/unittests/dygraph_to_static/test_bert.py

@@ -220,4 +220,5 @@ class TestBert(unittest.TestCase):
 
 
 if __name__ == '__main__':
+    with fluid.framework._test_eager_guard():
         unittest.main()

python/paddle/fluid/tests/unittests/dygraph_to_static/test_bmn.py

@@ -773,4 +773,5 @@ class TestTrain(unittest.TestCase):
 
 
 if __name__ == "__main__":
+    with fluid.framework._test_eager_guard():
         unittest.main()

python/paddle/fluid/tests/unittests/dygraph_to_static/test_mobile_net.py

@@ -628,4 +628,5 @@ class TestMobileNet(unittest.TestCase):
 
 
 if __name__ == '__main__':
+    with fluid.framework._test_eager_guard():
         unittest.main()

python/paddle/fluid/tests/unittests/dygraph_to_static/test_program_translator.py

@@ -363,4 +363,5 @@ class TestRemoveCommentInDy2St(unittest.TestCase):
 
 
 if __name__ == '__main__':
+    with fluid.framework._test_eager_guard():
         unittest.main()

python/paddle/fluid/tests/unittests/dygraph_to_static/test_sentiment.py

@@ -358,4 +358,5 @@ class TestSentiment(unittest.TestCase):
 
 
 if __name__ == '__main__':
+    with fluid.framework._test_eager_guard():
         unittest.main()

python/paddle/fluid/tests/unittests/dygraph_to_static/test_word2vec.py

@@ -303,4 +303,5 @@ class TestWord2Vec(unittest.TestCase):
 
 
 if __name__ == '__main__':
+    with fluid.framework._test_eager_guard():
         unittest.main()

python/paddle/fluid/tests/unittests/test_jit_save_load.py

@@ -1454,4 +1454,5 @@ class TestInputSpecCompatibility(unittest.TestCase):
 
 
 if __name__ == '__main__':
+    with fluid.framework._test_eager_guard():
         unittest.main()