Logic fix for plugin.is_active (#10026)

* Logic fix for plugin.is_active

- Previously were not considering the "mandatory" attribute

* Fix unit tests

* Allow more queries

* Fix unit tests

src/backend/InvenTree/InvenTree/test_api.py

@@ -582,7 +582,7 @@ class GeneralApiTests(InvenTreeAPITestCase):
         """Test that we can read the 'info-view' endpoint."""
         url = reverse('api-inventree-info')
 
-        response = self.get(url)
+        response = self.get(url, max_query_count=275, expected_code=200)
 
         data = response.json()
         self.assertIn('server', data)

src/backend/InvenTree/plugin/base/label/test_label_mixin.py

@@ -52,7 +52,11 @@ class LabelMixinTests(PrintTestMixins, InvenTreeAPITestCase):
 
         # But, it is not 'active'
         plugins = registry.with_mixin(PluginMixinEnum.LABELS, active=True)
-        self.assertEqual(len(plugins), 3)
+
+        self.assertEqual(len(plugins), 2)
+        slugs = [p.slug for p in plugins]
+        self.assertIn('inventreelabel', slugs)
+        self.assertIn('inventreelabelmachine', slugs)
 
     def test_api(self):
         """Test that we can filter the API endpoint by mixin."""
@@ -110,6 +114,7 @@ class LabelMixinTests(PrintTestMixins, InvenTreeAPITestCase):
         self.assertIn('list may not be empty', str(response.data['items']))
 
         # Plugin is not a label plugin
+        registry.set_plugin_state('digikeyplugin', True)
         no_valid_plg = registry.get_plugin('digikeyplugin').plugin_config()
 
         response = self.post(

src/backend/InvenTree/plugin/builtin/suppliers/test_supplier_barcodes.py

@@ -15,16 +15,17 @@ class SupplierBarcodeTests(InvenTreeAPITestCase):
 
     SCAN_URL = reverse('api-barcode-scan')
 
-    def setUp(self):
-        """Ensure the digikey plugin is enabled."""
-        super().setUp()
-        registry.set_plugin_state('digikeyplugin', True)
-
     @classmethod
     def setUpTestData(cls):
         """Create supplier parts for barcodes."""
         super().setUpTestData()
 
+        # Enable the plugins
+        registry.set_plugin_state('digikeyplugin', True)
+        registry.set_plugin_state('mouserplugin', True)
+        registry.set_plugin_state('lcscplugin', True)
+        registry.set_plugin_state('tmeplugin', True)
+
         part = Part.objects.create(name='Test Part', description='Test Part')
 
         manufacturer = Company.objects.create(
@@ -59,9 +60,11 @@ class SupplierBarcodeTests(InvenTreeAPITestCase):
 
         # Assign supplier information to the plugins
         # Add supplier information to each custom plugin
+        registry.set_plugin_state('digikeyplugin', True)
         digikey_plugin = registry.get_plugin('digikeyplugin')
         digikey_plugin.set_setting('SUPPLIER_ID', digikey_supplier.pk)
 
+        registry.set_plugin_state('mouserplugin', True)
         mouser_plugin = registry.get_plugin('mouserplugin')
         mouser_plugin.set_setting('SUPPLIER_ID', mouser_supplier.pk)
 
@@ -223,9 +226,11 @@ class SupplierBarcodePOReceiveTests(InvenTreeAPITestCase):
             self.purchase_order2.add_line_item(supplier_part, 5, destination=self.loc_2)
 
         # Add supplier information to each custom plugin
+        registry.set_plugin_state('digikeyplugin', True)
         digikey_plugin = registry.get_plugin('digikeyplugin')
         digikey_plugin.set_setting('SUPPLIER_ID', digikey_supplier.pk)
 
+        registry.set_plugin_state('mouserplugin', True)
         mouser_plugin = registry.get_plugin('mouserplugin')
         mouser_plugin.set_setting('SUPPLIER_ID', mouser.pk)
 

src/backend/InvenTree/plugin/plugin.py

@@ -131,14 +131,15 @@ class MetaBase:
 
     def is_active(self):
         """Return True if this plugin is currently active."""
-        # Builtin plugins are always considered "active"
-        if self.is_builtin:
+        # Mandatory plugins are always considered "active"
+        if self.is_builtin and self.is_mandatory:
             return True
 
         config = self.plugin_config()
 
         if config:
             return config.active
+
         return False  # pragma: no cover
 
 
@@ -367,6 +368,13 @@ class InvenTreePlugin(VersionMixin, MixinBase, MetaBase):
         """Is this plugin is builtin."""
         return self.check_is_builtin()
 
+    @property
+    def is_mandatory(self) -> bool:
+        """Is this plugin mandatory (always forced to be active)."""
+        from plugin.registry import registry
+
+        return self.slug in registry.MANDATORY_PLUGINS
+
     @classmethod
     def check_package_path(cls):
         """Path to the plugin."""