fix bug

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

@@ -483,7 +483,16 @@ def inplace_api_processing(self, var):
         return var.subtract_(input_var_2)
 
 
-class TestDygraphInplaceRemainder(TestDygraphInplaceAdd):
+class TestDygraphInplaceRemainder(unittest.TestCase):
+
+    def setUp(self):
+        self.init_data()
+        self.set_np_compare_func()
+
+    def init_data(self):
+        self.input_var_numpy = np.random.rand(2, 3, 4)
+        self.dtype = "float32"
+        self.input_var_numpy_2 = np.random.rand(2, 3, 4).astype(self.dtype)
 
     def non_inplace_api_processing(self, var):
         input_var_2 = paddle.to_tensor(self.input_var_numpy_2)
@@ -493,6 +502,41 @@ def inplace_api_processing(self, var):
         input_var_2 = paddle.to_tensor(self.input_var_numpy_2)
         return var.remainder_(input_var_2)
 
+    def set_np_compare_func(self):
+        self.np_compare = np.array_equal
+
+    def func_test_inplace_api(self):
+        var = paddle.to_tensor(self.input_var_numpy).astype(self.dtype)
+        inplace_var = self.inplace_api_processing(var)
+        self.assertTrue(id(var) == id(inplace_var))
+
+        inplace_var[0] = 2.
+        np.testing.assert_array_equal(var.numpy(), inplace_var.numpy())
+
+    def test_inplace_api(self):
+        with _test_eager_guard():
+            self.func_test_inplace_api()
+        self.func_test_inplace_api()
+
+    def func_test_forward_version(self):
+        with paddle.fluid.dygraph.guard():
+            var = paddle.to_tensor(self.input_var_numpy).astype(self.dtype)
+            self.assertEqual(var.inplace_version, 0)
+
+            inplace_var = self.inplace_api_processing(var)
+            self.assertEqual(var.inplace_version, 1)
+
+            inplace_var[0] = 2.
+            self.assertEqual(var.inplace_version, 2)
+
+            inplace_var = self.inplace_api_processing(inplace_var)
+            self.assertEqual(var.inplace_version, 3)
+
+    def test_forward_version(self):
+        with _test_eager_guard():
+            self.func_test_forward_version()
+        self.func_test_forward_version()
+
 
 class TestLossIsInplaceVar(unittest.TestCase):