Added test cases and a fix for Issue #409.

sacred/config/config_dict.py

@@ -2,7 +2,8 @@
 # coding=utf-8
 
 from sacred.config.config_summary import ConfigSummary
-from sacred.config.utils import dogmatize, normalize_or_die, undogmatize
+from sacred.config.utils import (dogmatize, normalize_or_die, undogmatize,
+                                 recursive_fill_in)
 
 
 class ConfigDict(object):
@@ -12,8 +13,8 @@ def __init__(self, d):
 
     def __call__(self, fixed=None, preset=None, fallback=None):
         result = dogmatize(fixed or {})
-        result.update(preset)
-        result.update(self._conf)
+        recursive_fill_in(result, self._conf)
+        recursive_fill_in(result, preset or {})
         added = result.revelation()
         config_summary = ConfigSummary(added, result.modified,
                                        result.typechanges)

tests/test_config/test_config_dict.py

@@ -129,3 +129,30 @@ def test_fixed_subentry_of_preset():
     assert set(cfg['d'].keys()) == {'a', 'b'}
     assert cfg['d']['a'] == 10
     assert cfg['d']['b'] == 2
+
+
+def test_add_config_dict_sequential():
+    # https://github.com/IDSIA/sacred/issues/409
+
+    adict = ConfigDict(dict(
+        dictnest2 = {
+            'key_1': 'value_1',
+            'key_2': 'value_2'
+        }))
+
+    bdict = ConfigDict(dict(
+        dictnest2 = {
+            'key_2': 'update_value_2',
+            'key_3': 'value3',
+            'key_4': 'value4'
+        }))
+
+    final_config = bdict(preset=adict())
+    assert final_config == {
+        'dictnest2': {
+            'key_1': 'value_1',
+            'key_2': 'update_value_2',
+            'key_3': 'value3',
+            'key_4': 'value4'
+        }
+    }

tests/test_config/test_config_scope_chain.py

@@ -3,7 +3,7 @@
 
 
 import pytest
-from sacred.config import ConfigScope, chain_evaluate_config_scopes
+from sacred.config import ConfigScope, ConfigDict, chain_evaluate_config_scopes
 
 
 def test_chained_config_scopes_contain_combined_keys():
@@ -143,3 +143,35 @@ def test_empty_chain_contains_preset_and_fixed():
     assert set(final_cfg.keys()) == {'a', 'b'}
     assert final_cfg['a'] == 0
     assert final_cfg['b'] == 2
+
+
+def test_add_config_dict_sequential():
+    # https://github.com/IDSIA/sacred/issues/409
+    @ConfigScope
+    def cfg1():
+        dictnest2 = {
+            'key_1': 'value_1',
+            'key_2': 'value_2'
+        }
+    cfg1dict = ConfigDict(cfg1())
+
+    @ConfigScope
+    def cfg2():
+        dictnest2 = {
+            'key_2': 'update_value_2',
+            'key_3': 'value3',
+            'key_4': 'value4'
+        }
+    cfg2dict = ConfigDict(cfg2())
+    final_config_scope, _ = chain_evaluate_config_scopes([cfg1, cfg2])
+    assert final_config_scope == {
+        'dictnest2': {
+            'key_1': 'value_1',
+            'key_2': 'update_value_2',
+            'key_3': 'value3',
+            'key_4': 'value4'
+        }
+    }
+
+    final_config_dict, _ = chain_evaluate_config_scopes([cfg1dict, cfg2dict])
+    assert final_config_dict == final_config_scope

tests/test_experiment.py

@@ -367,3 +367,51 @@ def main(_config, nested_dict, nested_list, nested_tuple):
 
     ex.run()
 
+
+def test_add_config_dict_chain(ex):
+
+    @ex.config
+    def config1():
+        """This is my demo configuration"""
+        dictnest_cap = {
+            'key_1': 'value_1',
+            'key_2': 'value_2'
+        }
+
+
+    @ex.config
+    def config2():
+        """This is my demo configuration"""
+        dictnest_cap = {
+            'key_2': 'update_value_2',
+            'key_3': 'value3',
+            'key_4': 'value4'
+        }
+
+
+    adict = {
+        'dictnest_dict': {
+            'key_1': 'value_1',
+            'key_2': 'value_2'
+        }
+    }
+    ex.add_config(adict)
+
+    bdict = {
+        'dictnest_dict': {
+            'key_2': 'update_value_2',
+            'key_3': 'value3',
+            'key_4': 'value4'
+        }
+    }
+    ex.add_config(bdict)
+
+    @ex.automain
+    def run():
+        pass
+
+    final_config = ex.run().config
+    assert final_config['dictnest_cap'] == {
+        'key_1': 'value_1', 'key_2': 'update_value_2',
+        'key_3': 'value3', 'key_4': 'value4'}
+    assert final_config['dictnest_cap'] == final_config['dictnest_dict']