Fix local tests (#3411)

* document embed params

* fix tests

* cleanup

* cleanup

* cleanup

* revert

* changelog

CHANGELOG.md

@@ -15,7 +15,7 @@ No changes to highlight.
 
 ## Testing and Infrastructure Changes:
 
-No changes to highlight.
+- Fixes tests that were failing locally but passing on CI by [@abidlabs](https://github.com/abidlabs) in [PR 3411](https://github.com/gradio-app/gradio/pull/3411)
 
 ## Breaking Changes:
 

gradio/processing_utils.py

@@ -376,9 +376,12 @@ class TempFileManager:
         file_hash = self.hash_url(url)
         return prefix + file_hash + extension
 
-    def get_temp_base64_path(self, base64_encoding: str, prefix: str) -> str:
-        extension = get_extension(base64_encoding)
-        extension = "." + extension if extension else ""
+    def get_temp_base64_path(
+        self, base64_encoding: str, prefix: str, extension: str
+    ) -> str:
+        guess_extension = get_extension(base64_encoding)
+        if not extension and guess_extension:
+            extension = "." + guess_extension
         base64_hash = self.hash_base64(base64_encoding)
         return prefix + base64_hash + extension
 
@@ -436,9 +439,12 @@ class TempFileManager:
         the file doesn't already exist. Otherwise returns the path to the existing file."""
         f = tempfile.NamedTemporaryFile(delete=False)
         temp_dir = Path(f.name).parent
-        prefix = self.get_prefix_and_extension(file_name)[0] if file_name else ""
-
-        temp_file_path = self.get_temp_base64_path(base64_encoding, prefix=prefix)
+        prefix, extension = (
+            self.get_prefix_and_extension(file_name) if file_name else ("", "")
+        )
+        temp_file_path = self.get_temp_base64_path(
+            base64_encoding, prefix=prefix, extension=extension
+        )
         f.name = str(temp_dir / temp_file_path)
         full_temp_file_path = str(utils.abspath(f.name))
 

test/test_components.py

@@ -842,12 +842,11 @@ class TestAudio:
 
     def test_serialize(self):
         audio_input = gr.Audio()
-        assert audio_input.serialize("test/test_files/audio_sample.wav") == {
-            "data": media_data.BASE64_AUDIO["data"],
-            "is_file": False,
-            "orig_name": "audio_sample.wav",
-            "name": "test/test_files/audio_sample.wav",
-        }
+        serialized_input = audio_input.serialize("test/test_files/audio_sample.wav")
+        assert serialized_input["data"] == media_data.BASE64_AUDIO["data"]
+        assert os.path.basename(serialized_input["name"]) == "audio_sample.wav"
+        assert serialized_input["orig_name"] == "audio_sample.wav"
+        assert not serialized_input["is_file"]
 
     def test_tokenize(self):
         """