Explicit Config.validate() method

Author: jbasko

.bumpversion.cfg

@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 1.32.1
+current_version = 1.33.0
 commit = true
 tag = false
 

configmanager/__init__.py

@@ -1,4 +1,4 @@
-__version__ = '1.32.1'
+__version__ = '1.33.0'
 
 from .managers import Config
 from .items import Item

configmanager/items.py

@@ -325,3 +325,10 @@ def get_path(self):
             return self.section.get_path() + (self.name,)
         else:
             return self.name,
+
+    def validate(self):
+        """
+        Validate item.
+        """
+        if self.required and not self.has_value:
+            raise RequiredValueMissing(name=self.name, item=self)

configmanager/managers.py

@@ -226,3 +226,7 @@ def load(self):
             adapter = getattr(self, _get_persistence_adapter_for(source))
             if adapter.store_exists(source):
                 adapter.load(source)
+
+    def validate(self):
+        for item in self.iter_items(recursive=True, key=None):
+            item.validate()

tests/test_validation.py

@@ -0,0 +1,20 @@
+import pytest
+
+from configmanager import Config, Item, RequiredValueMissing
+
+
+def test_validate_raises_required_value_missing():
+    config = Config({
+        'a': Item(required=True),
+        'b': Item(),
+    })
+
+    with pytest.raises(RequiredValueMissing):
+        config.validate()
+
+    config.a.set('value')
+    config.validate()
+
+    config.a.reset()
+    with pytest.raises(RequiredValueMissing):
+        config.validate()