Update tests for new camera streaming modes

tests/hardware_specific_tests/picamera2/test_streaming_mode.py

@@ -0,0 +1,21 @@
+"""Test changing and setting camerat modes on the Raspberry Picamera."""
+
+import logging
+
+import numpy as np
+
+from .cam_test_utils import camera_test_client
+
+logging.basicConfig(level=logging.DEBUG)
+
+
+def test_streaming_mode():
+    """Test capturing raw arrays in two different sensor modes."""
+    with camera_test_client() as client:
+        for mode, res in ["default", (820, 616)], ["full_resolution", (3280, 2464)]:
+            client.change_streaming_mode(mode=mode)
+            arr = np.array(client.capture_array(stream_name="main"))
+            # Check that the array dimensions match the requested image size.
+            # Note: Numpy array shape is (y,x), but the sensor is set with (x,y)
+            # hence the need to compare index 0 with index 1.
+            assert arr.shape[0] == res[1]