Added test for output shape of the model.

TF_Implementation/test/test_RBF_tf.py

@@ -36,6 +36,13 @@ class TestRBFAdaptiveModel(unittest.TestCase):
         self.assertIsInstance(self.model.rbf_layer, RBFLayer)
         self.assertEqual(self.model.output_layer.units, 1)
 
+    def test_call_output_shape(self):
+        """ Test the call method for output shape."""
+        inputs = tf.random.normal((3, self.input_dim))
+        output = self.model(inputs)
+        
+        self.assertEqual(output.shape, (3, 1))
+
         
 if __name__ == '__main__':
     unittest.main()