Update tests for CapturedFrame integration

Adjust camera backend and factory tests to return `CapturedFrame` objects instead of `(frame, timestamp)` tuples, matching the updated camera API. Extend `tests/conftest.py` fake DLCLive doubles with runner, processing, and post-processing behavior so `DLCLiveProcessor._process_frame` paths are exercised under the new flow.

Author: C-Achard

tests/cameras/test_backend_discovery.py

@@ -26,7 +26,7 @@ def _write_temp_backend_package(tmp_path: Path, pkg_name: str = "test_backends_p
     # A backend module which registers itself as "lazyfake"
     backend_code = textwrap.dedent(
         """
-        from dlclivegui.cameras.base import register_backend, CameraBackend
+        from dlclivegui.cameras.base import register_backend, CameraBackend, CapturedFrame
         from dlclivegui.config import CameraSettings
         import numpy as np
         import time
@@ -44,7 +44,7 @@ def open(self) -> None:
             def read(self):
                 # Small deterministic frame + timestamp
                 frame = np.zeros((2, 3, 3), dtype=np.uint8)
-                return frame, time.time()
+                return CapturedFrame(frame, time.time(), None)
 
             def close(self) -> None:
                 self._opened = False

tests/cameras/test_factory.py

@@ -3,6 +3,7 @@
 import pytest
 
 from dlclivegui.cameras import CameraFactory, DetectedCamera, base
+from dlclivegui.cameras.base import CapturedFrame
 from dlclivegui.config import CameraSettings
 
 
@@ -69,7 +70,7 @@ def open(self):
             raise AssertionError("Probing path should not open when rich discovery returns a list")
 
         def read(self):
-            return None, 0.0
+            return CapturedFrame(None, 0.0, None)
 
         def close(self):
             pass
@@ -112,7 +113,7 @@ def open(self):
             pass
 
         def read(self):
-            return None, 0.0
+            return CapturedFrame(None, 0.0, None)
 
         def close(self):
             pass
@@ -150,7 +151,7 @@ def open(self):
                 raise RuntimeError("no device")
 
         def read(self):
-            return None, 0.0
+            return CapturedFrame(None, 0.0, None)
 
         def close(self):
             pass
@@ -182,7 +183,7 @@ def open(self):
                 raise RuntimeError("no device")
 
         def read(self):
-            return None, 0.0
+            return CapturedFrame(None, 0.0, None)
 
         def close(self):
             pass
@@ -220,7 +221,7 @@ def open(self):
             pass
 
         def read(self):
-            return None, 0.0
+            return CapturedFrame(None, 0.0, None)
 
         def close(self):
             pass
@@ -252,7 +253,7 @@ def open(self):
             pass
 
         def read(self):
-            return None, 0.0
+            return CapturedFrame(None, 0.0, None)
 
         def close(self):
             pass
@@ -280,7 +281,7 @@ def open(self):
             pass
 
         def read(self):
-            return None, 0.0
+            return CapturedFrame(None, 0.0, None)
 
         def close(self):
             pass
@@ -311,7 +312,7 @@ def open(self):
             pass
 
         def read(self):
-            return None, 0.0
+            return CapturedFrame(None, 0.0, None)
 
         def close(self):
             pass
@@ -341,7 +342,7 @@ def open(self):
                 raise RuntimeError("no device")
 
         def read(self):
-            return None, 0.0
+            return CapturedFrame(None, 0.0, None)
 
         def close(self):
             pass

tests/cameras/test_fake_backend.py

@@ -26,7 +26,7 @@ def open(self):
         def read(self):
             assert self._opened
             img = np.zeros((10, 20, 3), dtype=np.uint8)
-            return img, 123.456
+            return base.CapturedFrame(img, 123.456, None)
 
         def close(self):
             self._opened = False

tests/conftest.py

@@ -154,6 +154,18 @@ def _factory(settings: CameraSettings):
 # ---------------------------------------------------------------------
 # Test doubles
 # ---------------------------------------------------------------------
+class FakeRunner:
+    """Minimal fake DLCLive runner used by DLCLiveProcessor._process_frame."""
+
+    def __init__(self, parent):
+        self._parent = parent
+        self.device = "cpu"
+        self.model = None
+        self.net = None
+
+    def get_pose(self, processed_frame):
+        self._parent.pose_calls += 1
+        return np.ones((2, 3), dtype=float)
 
 
 class FakeDLCLive:
@@ -163,14 +175,31 @@ def __init__(self, **opts):
         self.opts = opts
         self.init_called = False
         self.pose_calls = 0
+        self.process_frame_calls = 0
+
+        self.processor = opts.get("processor")
+        self.cfg = {"fake": True}
+        self.runner = FakeRunner(self)
+        self.pose = None
 
     def init_inference(self, frame):
         self.init_called = True
 
+    def process_frame(self, frame):
+        self.process_frame_calls += 1
+        return frame
+
     def get_pose(self, frame, frame_time=None):
+        # Keep this for compatibility with older tests, but production code now
+        # uses self.runner.get_pose(...).
         self.pose_calls += 1
         return np.ones((2, 3), dtype=float)
 
+    def _post_process_pose(self, processed_frame, frame_time=None):
+        if self.pose is None:
+            self.pose = self.runner.get_pose(processed_frame)
+        return self.pose
+
 
 @pytest.fixture
 def fake_dlclive_factory():