mcs/class/System.ComponentModel.Composition/Tests/UnitTestFramework/System/Collections/Generic/DictionaryExtensions.cs

   1 // -----------------------------------------------------------------------\r
   2 // Copyright (c) Microsoft Corporation.  All rights reserved.\r
   3 // -----------------------------------------------------------------------\r
   4 using System;\r
   5 using System.Collections.Generic;\r
   6 \r
   7 namespace Microsoft.Internal.Collections\r
   8 {\r
   9     public static class DictionaryExtensions\r
  10     {\r
  11         public static bool ContainsAllKeys<TKey, TValue>(this IDictionary<TKey, TValue> dictionary, IEnumerable<TKey> keys)\r
  12         {\r
  13             foreach (TKey key in keys)\r
  14             {\r
  15                 if (!dictionary.ContainsKey(key))\r
  16                     return false;\r
  17             }\r
  18 \r
  19             return true;\r
  20         }\r
  21 \r
  22         public static bool DictionaryEquals<TKey, TValue>(this IDictionary<TKey, TValue> dictionary1, IDictionary<TKey, TValue> dictionary2)\r
  23         {\r
  24             if (dictionary1.Keys.Count != dictionary2.Keys.Count)\r
  25             {\r
  26                 return false;\r
  27             }\r
  28 \r
  29             foreach (KeyValuePair<TKey, TValue> kvp in dictionary1)\r
  30             {\r
  31                 TValue value1 = kvp.Value;\r
  32                 TValue value2 = default(TValue);\r
  33                 if (!dictionary2.TryGetValue(kvp.Key, out value2))\r
  34                 {\r
  35                     return false;\r
  36                 }\r
  37 \r
  38                 IDictionary<TKey, TValue> nestedDictionary1 = value1 as IDictionary<TKey, TValue>;\r
  39                 IDictionary<TKey, TValue> nestedDictionary2 = value1 as IDictionary<TKey, TValue>;\r
  40 \r
  41                 if ((nestedDictionary1 != null) && (nestedDictionary2 != null))\r
  42                 {\r
  43                     if (!nestedDictionary1.DictionaryEquals(nestedDictionary2))\r
  44                     {\r
  45                         return false;\r
  46                     }\r
  47                 }\r
  48                 else\r
  49                 {\r
  50                     if (!(value1.Equals(value2)))\r
  51                     {\r
  52                         return false;\r
  53                     }\r
  54                 }\r
  55             }\r
  56 \r
  57             return true;\r
  58         }\r
  59     }\r
  60 }