Add test for getting metadata from machine node

Contributes to issue CURA-6600.

tests/Machines/TestMachineNode.py

@@ -4,14 +4,24 @@ import pytest
 from UM.Settings.Interfaces import ContainerInterface
 from cura.Machines.MachineNode import MachineNode
 
-metadata_dict = {}
+metadata_dict = {
+    "has_materials": "false",
+    "has_variants": "true",
+    "has_machine_materials": "true",
+    "has_machine_quality": "true",
+    "quality_definition": "test_quality_definition",
+    "exclude_materials": ["excluded_material_1", "excluded_material_2"],
+    "preferred_variant_name": "beautiful_nozzle",
+    "preferred_material": "beautiful_material",
+    "preferred_quality_type": "beautiful_quality_type"
+}
 
 
 @pytest.fixture
 def container_registry():
     result = MagicMock()
     result.findInstanceContainersMetadata = MagicMock(return_value = [{"id": "variant_1", "name": "Variant One", "quality_type": "normal"}, {"id": "variant_2", "name": "Variant Two", "quality_type": "great"}])
-    result.findContainersMetadata = MagicMock(return_value = [{"has_variants": True}])
+    result.findContainersMetadata = MagicMock(return_value = [metadata_dict])
     return result
 
 
@@ -39,3 +49,17 @@ def test_machineNodeInit(container_registry):
     assert "Variant One" in machine_node.variants
     assert "Variant Two" in machine_node.variants
     assert len(machine_node.variants) == 2  # And ensure that *only* those two got added.
+
+def test_metadataProperties(container_registry):
+    node = createMachineNode("machine_1", container_registry)
+
+    # Check if each of the metadata entries got stored properly.
+    assert not node.has_materials
+    assert node.has_variants
+    assert node.has_machine_materials
+    assert node.has_machine_quality
+    assert node.quality_definition == metadata_dict["quality_definition"]
+    assert node.exclude_materials == metadata_dict["exclude_materials"]
+    assert node.preferred_variant_name == metadata_dict["preferred_variant_name"]
+    assert node.preferred_material == metadata_dict["preferred_material"]
+    assert node.preferred_quality_type == metadata_dict["preferred_quality_type"]