diff --git a/tests/components/usb/test_init.py b/tests/components/usb/test_init.py
index 7d620b45984..cc34add6726 100644
--- a/tests/components/usb/test_init.py
+++ b/tests/components/usb/test_init.py
@@ -777,3 +777,27 @@ def test_human_readable_device_name():
     assert "Silicon Labs" in name
     assert "10C4" in name
     assert "8A2A" in name
+
+
+async def test_service_info_compatibility(hass, caplog):
+    """Test compatibility with old-style dict.
+
+    To be removed in 2022.6
+    """
+    discovery_info = usb.UsbServiceInfo(
+        device=slae_sh_device.device,
+        vid=12345,
+        pid=12345,
+        serial_number=slae_sh_device.serial_number,
+        manufacturer=slae_sh_device.manufacturer,
+        description=slae_sh_device.description,
+    )
+
+    # Ensure first call get logged
+    assert discovery_info["vid"] == 12345
+    assert "Detected code that accessed discovery_info['vid']" in caplog.text
+
+    # Ensure second call doesn't get logged
+    caplog.clear()
+    assert discovery_info["vid"] == 12345
+    assert "Detected code that accessed discovery_info['vid']" not in caplog.text