add tests for the NeXus app

Author: lukaspie

tests/nomad/test_nexus_app.py

@@ -0,0 +1,84 @@
+#
+# Copyright The NOMAD Authors.
+#
+# This file is part of NOMAD. See https://nomad-lab.eu for further info.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+"""Test for the NeXus app."""
+
+import pytest
+
+try:
+    import nomad  # noqa: F401
+except ImportError:
+    pytest.skip(
+        "Skipping NOMAD app tests because nomad-lab is not installed",
+        allow_module_level=True,
+    )
+
+from pynxtools.nomad.apps import nexus_app
+
+
+def test_nexus_app_basic_properties():
+    """Verify basic metadata of the NeXus app."""
+    app = nexus_app.app
+
+    assert app.label == "NeXus"
+    assert app.path == "nexusapp"
+    assert app.category == "Experiment"
+
+
+def test_nexus_app_locked_filters():
+    """Ensure required locked filters are defined and well-formed."""
+    app = nexus_app.app
+
+    assert "section_defs.definition_qualified_name" in app.filters_locked
+    assert isinstance(
+        app.filters_locked["section_defs.definition_qualified_name"], list
+    )
+    assert len(app.filters_locked["section_defs.definition_qualified_name"]) == 1
+
+
+def test_nexus_app_columns():
+    """Check that a representative result column is configured correctly."""
+    app = nexus_app.app
+
+    definition_column = next(col for col in app.columns if col.title == "Definition")
+
+    assert definition_column.selected is True
+    assert "data.ENTRY" in definition_column.search_quantity
+
+
+def test_nexus_app_menu_contains_elements_section():
+    """Validate presence and structure of the Elements menu section."""
+    app = nexus_app.app
+
+    elements_menu = next(item for item in app.menu.items if item.title == "Elements")
+
+    assert elements_menu.size.name == "XXL"
+    assert any(
+        item.__class__.__name__ == "MenuItemPeriodicTable"
+        for item in elements_menu.items
+    )
+
+
+def test_nexus_app_dashboard_widgets():
+    """Ensure the dashboard contains a valid periodic table widget."""
+    dashboard = nexus_app.app.dashboard
+
+    assert len(dashboard.widgets) > 0
+
+    periodic_table = next(w for w in dashboard.widgets if w.type == "periodic_table")
+    assert periodic_table.search_quantity == "results.material.elements"
+    assert periodic_table.layout