feat(device-initialization-progress-bar): add progress bar for device initialization

tests/unit_tests/test_device_initialization_progress_bar.py

@@ -0,0 +1,66 @@
+# pylint skip
+import pytest
+from bec_lib.messages import DeviceInitializationProgressMessage
+
+from bec_widgets.widgets.progress.device_initialization_progress_bar.device_initialization_progress_bar import (
+    DeviceInitializationProgressBar,
+)
+
+
+@pytest.fixture
+def progress_bar(qtbot):
+    widget = DeviceInitializationProgressBar()
+    qtbot.addWidget(widget)
+    qtbot.waitExposed(widget)
+    yield widget
+
+
+def test_progress_bar_initialization(progress_bar):
+    """Test the initial state of the DeviceInitializationProgressBar."""
+    assert progress_bar.failed_devices == []
+    assert progress_bar._user_value == 0
+    assert progress_bar._user_maximum == 1
+    assert progress_bar.toolTip() == "No device initialization failures."
+
+
+def test_update_device_initialization_progress(progress_bar, qtbot):
+    """Test updating the progress bar with different device initialization messages."""
+
+    # I. Update with message of running DeviceInitializationProgressMessage, finished=False, success=False
+    msg = DeviceInitializationProgressMessage(
+        device="DeviceA", index=1, total=3, finished=False, success=False
+    )
+
+    progress_bar._update_device_initialization_progress(msg.model_dump(), {})
+    assert progress_bar._user_value == 1
+    assert progress_bar._user_maximum == 3
+    assert (
+        f"Device initialization for '{msg.device}' is in progress..."
+        in progress_bar.center_label.text()
+    )
+
+    # II. Update with message of finished DeviceInitializationProgressMessage, finished=True, success=True
+    msg.finished = True
+    msg.success = True
+    progress_bar._update_device_initialization_progress(msg.model_dump(), {})
+    assert progress_bar._user_value == 1
+    assert progress_bar._user_maximum == 3
+    assert (
+        f"Device initialization for '{msg.device}' succeeded!" in progress_bar.center_label.text()
+    )
+
+    # III. Update with message of finished DeviceInitializationProgressMessage, finished=True, success=False
+    msg.finished = True
+    msg.success = False
+    msg.device = "DeviceB"
+    msg.index = 2
+    with qtbot.waitSignal(progress_bar.failed_devices_changed) as signal_blocker:
+        progress_bar._update_device_initialization_progress(msg.model_dump(), {})
+        assert progress_bar._user_value == 2
+        assert progress_bar._user_maximum == 3
+        assert (
+            f"Device initialization for '{msg.device}' failed!" in progress_bar.center_label.text()
+        )
+        assert signal_blocker.args == [[msg.device]]
+
+        assert progress_bar.toolTip() == f"Failed devices: {msg.device}"