Address Codacy assert warnings

Author: shenweichen

tests/layers/core_test.py

@@ -48,7 +48,8 @@ def test_DNN_output_activation():
         x = tf.keras.layers.Input(shape=(EMBEDDING_SIZE,))
         y = layers.DNN((10,), output_activation='sigmoid')(x)
         model = tf.keras.models.Model(x, y)
-        assert model.output_shape == (None, 10)
+        if model.output_shape != (None, 10):
+            raise AssertionError("Unexpected DNN output shape")
 
 
 @pytest.mark.parametrize(

tests/models/FNN_test.py

@@ -30,7 +30,8 @@ def test_FNN_does_not_add_wide_linear_logit():
 
     model = FNN(feature_columns, feature_columns, dnn_hidden_units=(4,), dnn_dropout=0)
 
-    assert all(layer.__class__.__name__ != 'Linear' for layer in model.layers)
+    if not all(layer.__class__.__name__ != 'Linear' for layer in model.layers):
+        raise AssertionError("FNN should not include a wide Linear layer")
 
 
 # @pytest.mark.parametrize(