Add test for frame status to conversion tests

If the frame is not complete, it might mean that no data was written to
it and that all pixels still contain `0x00` as value from the buffer
initialization. This makes the assertions further down in the test
cases useless where it is asserted, that data was written to the
expected buffers.

Author: NiklasKroeger-AlliedVision

Tests/real_cam_tests/frame_test.py

@@ -299,6 +299,11 @@ def test_conversion_writes_to_user_supplied_buffer(self):
         target_format = PixelFormat.Bgr8
         self.cam.set_pixel_format(record_format)
         original_frame = self.cam.get_frame()
+        self.assertEqual(original_frame.get_status(),
+                         FrameStatus.Complete,
+                         'Recorded frame was not complete. We cannot reliably work with a possibly '
+                         'empty frame because we want to check if pixel values are written '
+                         'correctly.')
         # Do conversion once without user supplied buffer. This creates a new VmbPy Frame with fresh
         # buffer. We can then reuse that buffer for future conversions
         np_buffer = original_frame.convert_pixel_format(target_format).as_numpy_ndarray()
@@ -317,6 +322,11 @@ def test_conversion_to_same_format_as_input(self):
         record_format = PixelFormat.Mono8
         self.cam.set_pixel_format(record_format)
         original_frame = self.cam.get_frame()
+        self.assertEqual(original_frame.get_status(),
+                         FrameStatus.Complete,
+                         'Recorded frame was not complete. We cannot reliably work with a possibly '
+                         'empty frame because we want to check if pixel values are written '
+                         'correctly.')
         # Do conversion once without user supplied buffer. This creates a new VmbPy Frame with fresh
         # buffer. We can then reuse that buffer for future conversions
         np_buffer = original_frame.convert_pixel_format(original_frame.get_pixel_format()) \
@@ -342,6 +352,11 @@ def test_image_data_is_as_expected(self):
         except ValueError:
             self.skipTest(f'{str(self.cam)} does not support pixel format "{record_format}"')
         original_frame = self.cam.get_frame()
+        self.assertEqual(original_frame.get_status(),
+                         FrameStatus.Complete,
+                         'Recorded frame was not complete. We cannot reliably work with a possibly '
+                         'empty frame because we want to check if pixel values are written '
+                         'correctly.')
         # Do conversion once without user supplied buffer. This creates a new VmbPy Frame with fresh
         # buffer. We can then reuse that buffer for future conversions
         np_buffer = original_frame.convert_pixel_format(target_format).as_numpy_ndarray()
@@ -364,6 +379,11 @@ def test_numpy_reports_shared_memory_for_user_buffer_and_new_ndarray(self):
         target_format = PixelFormat.Bgr8
         self.cam.set_pixel_format(record_format)
         original_frame = self.cam.get_frame()
+        self.assertEqual(original_frame.get_status(),
+                         FrameStatus.Complete,
+                         'Recorded frame was not complete. We cannot reliably work with a possibly '
+                         'empty frame because we want to check if pixel values are written '
+                         'correctly.')
         # Do conversion once without user supplied buffer. This creates a new VmbPy Frame with fresh
         # buffer. We can then reuse that buffer for future conversions
         np_buffer = original_frame.convert_pixel_format(target_format).as_numpy_ndarray()