You can now load, unlink, and unload links.

src/blenderbim/test/bim/bootstrap.py

@@ -155,10 +155,18 @@ def the_object_name_is_in_the_collection_collection(name, collection):
     assert collection in [c.name for c in the_object_name_exists(name).users_collection]
 
 
+def the_object_name_is_not_in_the_collection_collection(name, collection):
+    assert collection not in [c.name for c in the_object_name_exists(name).users_collection]
+
+
 def the_collection_name1_is_in_the_collection_name2(name1, name2):
     assert bpy.data.collections.get(name2).children.get(name1)
 
 
+def the_collection_name1_is_not_in_the_collection_name2(name1, name2):
+    assert not bpy.data.collections.get(name2).children.get(name1)
+
+
 def the_object_name_is_placed_in_the_collection_collection(name, collection):
     obj = the_object_name_exists(name)
     [c.objects.unlink(obj) for c in obj.users_collection]
@@ -266,7 +274,9 @@ definitions = {
     'the object "(.*)" is an "(.*)"': the_object_name_is_an_ifc_class,
     'the object "(.*)" is not an IFC element': the_object_name_is_not_an_ifc_element,
     'the object "(.*)" is in the collection "(.*)"': the_object_name_is_in_the_collection_collection,
+    'the object "(.*)" is not in the collection "(.*)"': the_object_name_is_not_in_the_collection_collection,
     'the collection "(.*)" is in the collection "(.*)"': the_collection_name1_is_in_the_collection_name2,
+    'the collection "(.*)" is not in the collection "(.*)"': the_collection_name1_is_not_in_the_collection_name2,
     "an IFC file exists": an_ifc_file_exists,
     "an IFC file does not exist": an_ifc_file_does_not_exist,
     'the object "(.*)" has a "(.*)" representation of "(.*)"': the_object_name_has_a_type_representation_of_context,

src/blenderbim/test/bim/module/project/test_operator.py

@@ -252,3 +252,38 @@ class TestLinkIFC(test.bim.bootstrap.NewFile):
         And the object "IfcBuildingStorey/Ground Floor" exists
         And the object "IfcBuildingStorey/Level 1" exists
         """
+
+
+class TestUnloadLink(test.bim.bootstrap.NewFile):
+    @test.bim.bootstrap.scenario
+    def test_unloading_a_link(self):
+        return """
+        When I press "bim.link_ifc(filepath='{cwd}/test/files/basic.blend')"
+        And I press "bim.unload_link(filepath='{cwd}/test/files/basic.blend')"
+        Then "scene.BIMProjectProperties.links['{cwd}/test/files/basic.blend'].is_loaded" is "False"
+        And "scene.collection.children.get('IfcProject/My Project')" is "None"
+        """
+
+
+class TestLoadLink(test.bim.bootstrap.NewFile):
+    @test.bim.bootstrap.scenario
+    def test_loading_a_link(self):
+        return """
+        When I press "bim.link_ifc(filepath='{cwd}/test/files/basic.blend')"
+        And I press "bim.unload_link(filepath='{cwd}/test/files/basic.blend')"
+        And I press "bim.load_link(filepath='{cwd}/test/files/basic.blend')"
+        Then "scene.BIMProjectProperties.links['{cwd}/test/files/basic.blend'].is_loaded" is "True"
+        And "scene.collection.children['IfcProject/My Project'].users" is "2"
+        """
+
+
+class TestUnlinkIFC(test.bim.bootstrap.NewFile):
+    @test.bim.bootstrap.scenario
+    def test_unlinking_an_ifc(self):
+        return """
+        When I press "bim.link_ifc(filepath='{cwd}/test/files/basic.blend')"
+        And I press "bim.unload_link(filepath='{cwd}/test/files/basic.blend')"
+        And I press "bim.unlink_ifc(filepath='{cwd}/test/files/basic.blend')"
+        Then "scene.BIMProjectProperties.links.get('{cwd}/test/files/basic.blend')" is "None"
+        And "scene.collection.children.get('IfcProject/My Project')" is "None"
+        """