[Bug Fix] Fix test_compiler when there is None in result. (PaddlePaddle#227)

* Fix test_compiler when there is None in result.

* Fix validate for single return.

Author: Xreki

graph_net/paddle/test_compiler.py

@@ -124,15 +124,23 @@ def test_single_model(args):
     compiled_duration_box = DurationBox(-1)
     with naive_timer(compiled_duration_box, synchronizer_func):
         compiled_out = compiled_model(**input_dict)
+
     if isinstance(expected_out, paddle.Tensor):
         expected_out = [expected_out]
         compiled_out = [compiled_out]
     if isinstance(expected_out, list) or isinstance(expected_out, tuple):
+        for a, b in zip(expected_out, compiled_out):
+            if (a is None and b is not None) or (a is not None and b is None):
+                raise ValueError("Both expected_out and compiled_out must be not None.")
         expected_out = [
-            regular_item(item) for item in expected_out if np.array(item).size != 0
+            regular_item(item)
+            for item in expected_out
+            if item is not None and np.array(item).size != 0
         ]
         compiled_out = [
-            regular_item(item) for item in compiled_out if np.array(item).size != 0
+            regular_item(item)
+            for item in compiled_out
+            if item is not None and np.array(item).size != 0
         ]
     else:
         raise ValueError("Illegal return value.")

graph_net/paddle/validate.py

@@ -66,9 +66,9 @@ def main(args):
     params.update(inputs)
     state_dict = {k: utils.replay_tensor(v) for k, v in params.items()}
 
-    y = model(**state_dict)[0]
+    y = model(**state_dict)
 
-    print(np.argmin(y), np.argmax(y))
+    # print(np.argmin(y), np.argmax(y))
     if isinstance(y, paddle.Tensor):
         print(y.shape)
     elif isinstance(y, list) or isinstance(y, tuple):