Refactor app.py to import test_cases instead of tests

app.py

@@ -1,5 +1,5 @@
 # from evaluate.utils import launch_gradio_widget
-import tests
+from tests import test_cases
 from evaluate.utils.logging import get_logger
 from evaluate.utils import (
     infer_gradio_input_types,
@@ -56,7 +56,7 @@ def launch_gradio_widget(metric, test_cases):
         title=f"Metric: {metric.name}",
         article=parse_readme(local_path / "README.md"),
         # TODO: load test cases and use them to populate examples
-        examples=[parse_test_cases(test_cases, feature_names, gradio_input_types)],
+        examples=[[parse_test_cases(test_cases, feature_names, gradio_input_types)]],
     )
 
     iface.launch()
@@ -64,4 +64,4 @@ def launch_gradio_widget(metric, test_cases):
 
 module = evaluate.load("danieldux/metric_template_1")
 
-launch_gradio_widget(module, tests)
+launch_gradio_widget(module, test_cases)